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SOLVED: No Thumbnails

jriker1
Champ in-the-making
Champ in-the-making

‎06-17-2009 09:00 AM

I have an Alfresco installation of Preview2 Jun 2nd version.  It is installed using Tomcat 6 built into OpenSuse 11.1.  Everything works, including preview of all documents and indexes are working.  I get the gears though when uploading documents for the thumbnails.  Logs are currently completely prestine.  Just some messages about activity feed entries processing in the catalina.out file.  I was getting errors before rebooting with the below, but now nothing.  I have compiled the latest version of ImageMagick and SWF Tools for my platform and they function.  Is there something specific I have to set for thumbnails?  Also what types of documents will create thumbnails?  Again, below is what I was getting before a reboot.

com.sun.pdfview.PDFParseException: Unsupported function type: 4
        at com.sun.pdfview.function.PDFFunction.getFunction(PDFFunction.java:120)
        at com.sun.pdfview.colorspace.PDFColorSpace.getColorSpace(PDFColorSpace.java:146)
        at com.sun.pdfview.pattern.PDFShader.getShader(PDFShader.java:122)
        at com.sun.pdfview.PDFParser.doShader(PDFParser.java:1097)
        at com.sun.pdfview.PDFParser.iterate(PDFParser.java:629)
        at com.sun.pdfview.BaseWatchable.run(BaseWatchable.java:88)
        at java.lang.Thread.run(Thread.java:619)
sun.awt.image.ImageFormatException: Unsupported color conversion request
        at sun.awt.image.JPEGImageDecoder.readImage(Native Method)
        at sun.awt.image.JPEGImageDecoder.produceImage(JPEGImageDecoder.java:119)
        at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:246)
        at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172)

Again, not seeing these in the logs anymore, but still have them from before.

Thanks for any input.

JR
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5 REPLIES 5

toml
Champ in-the-making
Champ in-the-making

‎06-19-2009 06:54 AM

Hi,

I can confirm the behaviour you describe. We installed Alfresco 3.1E yesterday on SLES 11. Everything working fine, except ImageMagick (version 6.4.2): no thumbnails in Share, no image conversions in Explorer.
And also: nothing int the logs. ImageMagick check succeeds upon Alfresco startup, but afterwards it no longer seems to be called from Alfresco. When enabling logging for transformations, nothing relevant is logged when we try an image conversion, whereas relevant info IS logged when we do the same on a working Windows installation…
ImageMagick on itself is working and config (path) is OK.

Must be something in the combination ImageMagick, Alfresco, Suse 11. But without errors being logged not easy to find…

Regards,
Tom
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jriker1
Champ in-the-making
Champ in-the-making

‎06-19-2009 08:41 PM

Hi,

I can confirm the behaviour you describe. We installed Alfresco 3.1E yesterday on SLES 11. Everything working fine, except ImageMagick (version 6.4.2): no thumbnails in Share, no image conversions in Explorer.
And also: nothing int the logs. ImageMagick check succeeds upon Alfresco startup, but afterwards it no longer seems to be called from Alfresco. When enabling logging for transformations, nothing relevant is logged when we try an image conversion, whereas relevant info IS logged when we do the same on a working Windows installation…
ImageMagick on itself is working and config (path) is OK.

Must be something in the combination ImageMagick, Alfresco, Suse 11. But without errors being logged not easy to find…

Regards,
Tom

I resolved this problem.  Found that it was the latest version of ImageMagic I was using.  Like 6.5.3 or something.  I removed it and went back to the default installed one built into OpenSUSE 11.1 selecting:

imagemagick
imagemagick-extra

Not sure if the extras did anything, but looks like for me, 3.2 Preview2 is incompatible with the later versions.  As for your version, seems in line with what I installed so not sure, but would suggest removing it and installing the above two packages again from the original CD.

Thanks.

JR
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toml
Champ in-the-making
Champ in-the-making

‎06-22-2009 03:24 AM

Indeed, reverting to ImageMagick 6.2.9 (instead of 6.4.3) also solved the issue for us.

Regards,
Tom
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mahkath
Champ in-the-making
Champ in-the-making

‎06-30-2009 03:01 AM

Hi,

Even I'm facing the same problem with Alfresco 3.1 with ImageMagick 6.4.4.
When I pointed to ImageMagick 6.5.2 I'm getting some errors in the log file which says -thumbnail option is not available.
We are using Solaris 10 SPARC + Alfresco 3.1 + ImageMagick 6.4.4

Previously we were using Alfresco 2.1 + Solaris 10 + ImageMagick 6.4.4 and everything was working fine.

Is there any issue with Alfresco 3.1 with ImageMagick plugins?

Please help me…

Regards,
Mahesh
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nadaoneal
Champ in-the-making
Champ in-the-making

‎07-16-2009 04:53 PM

Edited: There is a ticket for this issue on issues.alfresco.com. If you're also still having this issue, please create an account there and vote for the issue. It will be more likely to get fixed then.

This fix is not working for me - 32-bit RHEL with Sun java 1.6.0_14. Today I've tried all of the following ImageMagick versions built from source:
ImageMagick-6.2.9  ImageMagick-6.3.5  ImageMagick-6.4.9-10  ImageMagick-6.5.3-3  ImageMagick-6.5.4-2
… plus version 6.2.8 via yum.

I get the thumbnail for images but not documents, though the large flash preview for documents seems to work fine. Luckily, I am also still having a problem with one type of image file - the .pnm JPEG-2000 file that loads the small preview but not the large one. So I can show log files for all three cases. To get these log files, I added two lines to log4j:

log4j.logger.org.alfresco.repo.thumbnail=debug
log4j.logger.org.alfresco.repo.content=debug

If anyone has any ideas about the best next course of action based on these logs, please let me know… I think I'm going to re-upgrade ImageMagick in the mean time. These logs, by the way, were generated with the RHEL 6.2.8 ImageMagick package from yum.

This is the only time I get a real exception in the log… when listing the contents of the document library.

16:51:04,753 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:04,755 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin
   random-access: true
16:51:04,755 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@1a77bae
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@a8e27c
16:51:04,756 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin, mimetype=text/plain, size=0, encoding=utf-8, locale=en_US]
16:51:05,800 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:05,811 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/9d23c1cf-15f7-4fd6-90fe-7ebc5f61c463; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:05,822 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/c8a58964-0cbc-460f-8a32-fd892e2d53cd; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:05,832 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/fcbee0c0-8012-4944-b29f-d525dc5dd420; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:05,842 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/c8725e31-5da8-4790-afe1-9b4dde0d74d3; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:05,984 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Creating thumbnail (node=workspace://SpacesStore/c8a58964-0cbc-460f-8a32-fd892e2d53cd; contentProperty={http://www.alfresco.org/model/content/1.0}content; mimetype=image/png
16:51:05,986 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/c8a58964-0cbc-460f-8a32-fd892e2d53cd; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:06,000 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Creating thumbnail (node=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; mimetype=image/png
16:51:06,011 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin, mimetype=null, size=999, encoding=UTF-8, locale=en_US]
16:51:06,012 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content writer: 
   writer: ContentAccessor[ contentUrl=store://2009/7/16/16/51/50ed2c08-8ac4-4349-8791-029156f95688.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,013 DEBUG [org.alfresco.repo.content.AbstractContentStore] Fetched new writer: 
   Store:   FileContentStore[ root=/opt/alfresco/alf_data/contentstore, allowRandomAccess=true, readOnly=false]
   Context: NodeContentContext[ contentUrl=null, existing=false, nodeRef=workspace://SpacesStore/020ec988-7688-4aa6-a89c-aa2d7dc5cb8d, propertyQName={http://www.alfresco.org/model/content/1.0}content]
   Writer:  ContentAccessor[ contentUrl=store://2009/7/16/16/51/50ed2c08-8ac4-4349-8791-029156f95688.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,014 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:51:06,014 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:06,016 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:51:06,017 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin
   random-access: true
16:51:06,017 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@1a47985
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@1264613
16:51:06,018 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin, mimetype=text/plain, size=999, encoding=utf-8, locale=en_US]
16:51:06,039 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=null, size=966, encoding=UTF-8, locale=en_US]
16:51:06,040 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content writer: 
   writer: ContentAccessor[ contentUrl=store://2009/7/16/16/51/407c34c6-1ba2-4b40-bd65-83442afacd79.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,040 DEBUG [org.alfresco.repo.content.AbstractContentStore] Fetched new writer: 
   Store:   FileContentStore[ root=/opt/alfresco/alf_data/contentstore, allowRandomAccess=true, readOnly=false]
   Context: NodeContentContext[ contentUrl=null, existing=false, nodeRef=workspace://SpacesStore/9d2a8cbe-8aea-4e79-9ce4-70e154d00e84, propertyQName={http://www.alfresco.org/model/content/1.0}content]
   Writer:  ContentAccessor[ contentUrl=store://2009/7/16/16/51/407c34c6-1ba2-4b40-bd65-83442afacd79.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,041 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:51:06,041 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:51:06,063 ERROR [org.alfresco.repo.content.AbstractContentAccessor.trace] Content IO Channel was opened but not closed: 
ContentAccessor[ contentUrl=store://2009/7/15/16/19/0c12f605-4040-4145-8aba-7b3450eec4cf.bin, mimetype=text/plain, size=0, encoding=utf-8, locale=en_US] 
   Started at: 
      org.alfresco.repo.content.AbstractContentAccessor.channelOpened(AbstractContentAccessor.java:148)
      org.alfresco.repo.content.AbstractContentReader.getReadableChannel(AbstractContentReader.java:230)
      org.alfresco.repo.content.AbstractContentReader.getContentInputStream(AbstractContentReader.java:330)
      org.alfresco.repo.tagging.TaggingServiceImpl.getTagDetails(TaggingServiceImpl.java:552)
      org.alfresco.repo.tagging.TaggingServiceImpl.findTagScope(TaggingServiceImpl.java:533)
      sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      java.lang.reflect.Method.invoke(Method.java:597)
      org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
      org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
      org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
      org.alfresco.repo.security.permissions.impl.AlwaysProceedMethodInterceptor.invoke(AlwaysProceedMethodInterceptor.java:40)
      org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
      org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:49)
      org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
      org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:275)
      org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
      org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
      org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
      org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
      org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
      $Proxy67.findTagScope(Unknown Source)
      org.alfresco.repo.jscript.ScriptNode.getTagScope(ScriptNode.java:2310)
      sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      java.lang.reflect.Method.invoke(Method.java:597)
      org.mozilla.javascript.MemberBox.invoke(MemberBox.java:155)
      org.mozilla.javascript.JavaMembers.get(JavaMembers.java:117)
      org.mozilla.javascript.NativeJavaObject.get(NativeJavaObject.java:113)
      org.mozilla.javascript.ScriptableObject.getProperty(ScriptableObject.java:1544)
      org.mozilla.javascript.ScriptRuntime.getObjectProp(ScriptRuntime.java:1375)
      org.mozilla.javascript.ScriptRuntime.getObjectProp(ScriptRuntime.java:1364)
      org.mozilla.javascript.gen.c12._c5(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js:149)
      org.mozilla.javascript.gen.c12.call(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js)
      org.mozilla.javascript.optimizer.OptRuntime.callName0(OptRuntime.java:108)
      org.mozilla.javascript.gen.c12._c0(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js:173)
      org.mozilla.javascript.gen.c12.call(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js)
      org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393)
      org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834)
      org.mozilla.javascript.gen.c12.call(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js)
      org.mozilla.javascript.gen.c12.exec(file:/opt/alf32/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/templates/webscripts/org/alfresco/repository/tagging/tagscope-tags.get.js)
      org.alfresco.repo.jscript.RhinoScriptProcessor.executeScriptImpl(RhinoScriptProcessor.java:449)
      org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:174)
      org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:274)
      org.alfresco.repo.web.scripts.RepositoryScriptProcessor.executeScript(RepositoryScriptProcessor.java:108)
      org.alfresco.web.scripts.AbstractWebScript.executeScript(AbstractWebScript.java:819)
      org.alfresco.web.scripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:90)
      org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:357)
      org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:326)
      org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:407)
      org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:424)
      org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:288)
      org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:262)
      org.alfresco.web.scripts.AbstractRuntime.executeScript(AbstractRuntime.java:139)
      org.alfresco.web.scripts.servlet.WebScriptServlet.service(WebScriptServlet.java:122)
      javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
      org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
      org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
      org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
      org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
      org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
      org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      java.lang.Thread.run(Thread.java:619)
16:51:06,071 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   random-access: true
16:51:06,071 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@3dc3f5
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@10c1955
16:51:06,071 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
16:51:06,185 DEBUG [org.alfresco.repo.content.filestore.FileContentWriter] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf
   random-access: true
16:51:06,186 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@1696533
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@733484
16:51:06,187 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Opened channel onto content: 
   content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf, mimetype=application/pdf, size=0, encoding=UTF-8, locale=en_US]
   channel: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@733484
16:51:06,188 DEBUG [org.alfresco.repo.content.transform.AbstractContentTransformer2] Completed transformation: 
   reader: ContentAccessor[ contentUrl=store://2009/7/16/14/57/ddb5bfc5-7ead-42ea-9a19-14dc31cf7111.bin, mimetype=text/plain, size=999, encoding=utf-8, locale=en_US]
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf, mimetype=application/pdf, size=15493, encoding=UTF-8, locale=en_US]
   options: org.alfresco.repo.content.transform.magick.ImageTransformationOptions@133c8e5
   transformer: ProxyContentTransformer[ average=427ms]
16:51:06,188 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Writer spawned new reader: 
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf, mimetype=application/pdf, size=15493, encoding=UTF-8, locale=en_US]
   new reader: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf, mimetype=application/pdf, size=15493, encoding=UTF-8, locale=en_US]
16:51:06,188 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf
   random-access: true
16:51:06,189 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@17cdadb
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@47210
16:51:06,189 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_5234346480995348226.pdf, mimetype=application/pdf, size=15493, encoding=UTF-8, locale=en_US]
16:51:06,195 INFO  [org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter] Creation of thumbnail 'doclib' failed
16:51:06,219 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Creating thumbnail (node=workspace://SpacesStore/fcbee0c0-8012-4944-b29f-d525dc5dd420; contentProperty={http://www.alfresco.org/model/content/1.0}content; mimetype=image/png
16:51:06,220 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/fcbee0c0-8012-4944-b29f-d525dc5dd420; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:51:06,242 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin, mimetype=null, size=18944, encoding=UTF-8, locale=en_US]
16:51:06,244 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content writer: 
   writer: ContentAccessor[ contentUrl=store://2009/7/16/16/51/01706c8b-c637-4524-8302-022aa2a6bc71.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,244 DEBUG [org.alfresco.repo.content.AbstractContentStore] Fetched new writer: 
   Store:   FileContentStore[ root=/opt/alfresco/alf_data/contentstore, allowRandomAccess=true, readOnly=false]
   Context: NodeContentContext[ contentUrl=null, existing=false, nodeRef=workspace://SpacesStore/7a0532fb-f4ba-46e1-bd81-1983c6c6cd63, propertyQName={http://www.alfresco.org/model/content/1.0}content]
   Writer:  ContentAccessor[ contentUrl=store://2009/7/16/16/51/01706c8b-c637-4524-8302-022aa2a6bc71.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:51:06,245 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: application/vnd.excel
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms]]
16:51:06,245 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: application/vnd.excel
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms]]
16:51:06,246 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin
   random-access: true
16:51:06,246 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@161b92f
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@c4d80a
16:51:06,247 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin, mimetype=application/vnd.excel, size=18944, encoding=utf-8, locale=en_US]
16:51:06,288 DEBUG [org.alfresco.repo.content.filestore.FileContentWriter] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf
   random-access: true
16:51:06,289 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@16d5ee2
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@1704930
16:51:06,290 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Opened channel onto content: 
   content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf, mimetype=application/pdf, size=0, encoding=UTF-8, locale=en_US]
   channel: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@1704930
16:51:06,290 DEBUG [org.alfresco.repo.content.transform.AbstractContentTransformer2] Completed transformation: 
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   options: org.alfresco.repo.content.transform.magick.ImageTransformationOptions@133c8e5
   transformer: ProxyContentTransformer[ average=418ms]
16:51:06,290 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Writer spawned new reader: 
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   new reader: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:51:06,291 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf
   random-access: true
16:51:06,291 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@d4ef0c
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@19a37b9
16:51:06,291 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_195916960913482621.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:51:06,297 INFO  [org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter] Creation of thumbnail 'doclib' failed
16:51:06,536 DEBUG [org.alfresco.repo.content.filestore.FileContentWriter] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf
   random-access: true
16:51:06,538 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@2ff64
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@cd3188
16:51:06,539 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Opened channel onto content: 
   content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf, mimetype=application/pdf, size=0, encoding=UTF-8, locale=en_US]
   channel: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@cd3188
16:51:06,540 DEBUG [org.alfresco.repo.content.transform.AbstractContentTransformer2] Completed transformation: 
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/f09aef0a-5222-48d2-a2a2-809b8f27a39a.bin, mimetype=application/vnd.excel, size=18944, encoding=utf-8, locale=en_US]
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf, mimetype=application/pdf, size=47170, encoding=UTF-8, locale=en_US]
   options: org.alfresco.repo.content.transform.magick.ImageTransformationOptions@133c8e5
   transformer: ProxyContentTransformer[ average=412ms]
16:51:06,540 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Writer spawned new reader: 
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf, mimetype=application/pdf, size=47170, encoding=UTF-8, locale=en_US]
   new reader: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf, mimetype=application/pdf, size=47170, encoding=UTF-8, locale=en_US]
16:51:06,540 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf
   random-access: true
16:51:06,540 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@16ed821
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@2f6ea6
16:51:06,541 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_xls_762279841205816485.pdf, mimetype=application/pdf, size=47170, encoding=UTF-8, locale=en_US]
16:51:06,546 INFO  [org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter] Creation of thumbnail 'doclib' failed
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

None of the following generate any real errors per se beyond "Creation of thumbnail 'doclib' failed"

log from a jpg, with both large preview and thumbnail list working:
16:16:51,065 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/15/16/18/45a3ec2c-3255-40f9-a0de-ff5816fb9222.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/15/16/18/45a3ec2c-3255-40f9-a0de-ff5816fb9222.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/15/16/18/45a3ec2c-3255-40f9-a0de-ff5816fb9222.bin, mimetype=null, size=599, encoding=UTF-8, locale=en_US]
16:16:51,935 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin, mimetype=null, size=22661, encoding=UTF-8, locale=en_US]
16:16:51,936 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: image/jpeg
   target mimetype: image/png
   transformers: [ProxyContentTransformer[ average=0ms]]
16:16:51,937 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: image/jpeg
   target mimetype: image/png
   transformers: [ProxyContentTransformer[ average=0ms]]
16:16:51,938 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: image/jpeg
   target mimetype: image/jpeg
   transformers: [ProxyContentTransformer[ average=0ms]]
16:16:51,938 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: image/jpeg
   target mimetype: image/png
   transformers: [ProxyContentTransformer[ average=0ms]]
16:16:51,939 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: image/jpeg
   target mimetype: application/x-shockwave-flash
   transformers: []
16:16:51,965 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/14/58/af70dffe-95db-4e9e-9230-f607a83d6ea3.bin, mimetype=null, size=22661, encoding=UTF-8, locale=en_US]
16:16:52,370 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/9d23c1cf-15f7-4fd6-90fe-7ebc5f61c463; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:16:52,452 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/9d23c1cf-15f7-4fd6-90fe-7ebc5f61c463; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:16:53,440 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/9d23c1cf-15f7-4fd6-90fe-7ebc5f61c463; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

log from view a .txt file, with large preview but not thumbnail working:
16:19:32,925 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=null, size=966, encoding=UTF-8, locale=en_US]
16:19:32,926 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:32,927 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:32,927 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/jpeg
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:32,928 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:32,928 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: application/x-shockwave-flash
   transformers: [ComplexContentTransformer[ average=0ms], ComplexContentTransformer[ average=0ms]]
16:19:33,249 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:19:33,318 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Creating thumbnail (node=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; mimetype=image/png
16:19:33,320 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:19:33,364 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=null, size=966, encoding=UTF-8, locale=en_US]
16:19:33,365 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content writer: 
   writer: ContentAccessor[ contentUrl=store://2009/7/16/16/19/24cc773f-6f60-47d7-b2a2-f8ce119bbde2.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:19:33,365 DEBUG [org.alfresco.repo.content.AbstractContentStore] Fetched new writer: 
   Store:   FileContentStore[ root=/opt/alfresco/alf_data/contentstore, allowRandomAccess=true, readOnly=false]
   Context: NodeContentContext[ contentUrl=null, existing=false, nodeRef=workspace://SpacesStore/ac096b2d-96fa-44d0-9dba-042ad04a95c3, propertyQName={http://www.alfresco.org/model/content/1.0}content]
   Writer:  ContentAccessor[ contentUrl=store://2009/7/16/16/19/24cc773f-6f60-47d7-b2a2-f8ce119bbde2.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:19:33,365 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:33,366 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:33,366 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   random-access: true
16:19:33,366 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@1b64fe4
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@37140d
16:19:33,367 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
16:19:33,474 DEBUG [org.alfresco.repo.content.filestore.FileContentWriter] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf
   random-access: true
16:19:33,474 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@56cdf
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@2ee30e
16:19:33,474 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Opened channel onto content: 
   content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf, mimetype=application/pdf, size=0, encoding=UTF-8, locale=en_US]
   channel: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@2ee30e
16:19:33,475 DEBUG [org.alfresco.repo.content.transform.AbstractContentTransformer2] Completed transformation: 
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   options: org.alfresco.repo.content.transform.magick.ImageTransformationOptions@133c8e5
   transformer: ProxyContentTransformer[ average=654ms]
16:19:33,475 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Writer spawned new reader: 
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   new reader: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:19:33,475 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf
   random-access: true
16:19:33,476 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@3ceacd
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@15b4736
16:19:33,476 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_8375245413796487226.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:19:33,480 INFO  [org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter] Creation of thumbnail 'doclib' failed
16:19:34,269 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:19:34,304 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Creating thumbnail (node=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; mimetype=image/png
16:19:34,305 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/2c0095c3-b782-453d-a599-8d509c02ef74; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:19:34,325 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=null, size=966, encoding=UTF-8, locale=en_US]
16:19:34,326 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content writer: 
   writer: ContentAccessor[ contentUrl=store://2009/7/16/16/19/dbec352c-917f-446a-988f-97d7b0e48ddf.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:19:34,326 DEBUG [org.alfresco.repo.content.AbstractContentStore] Fetched new writer: 
   Store:   FileContentStore[ root=/opt/alfresco/alf_data/contentstore, allowRandomAccess=true, readOnly=false]
   Context: NodeContentContext[ contentUrl=null, existing=false, nodeRef=workspace://SpacesStore/ad874dd1-dd33-4c1e-9bff-2ca452c56338, propertyQName={http://www.alfresco.org/model/content/1.0}content]
   Writer:  ContentAccessor[ contentUrl=store://2009/7/16/16/19/dbec352c-917f-446a-988f-97d7b0e48ddf.bin, mimetype=null, size=0, encoding=UTF-8, locale=en_US]
16:19:34,326 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:34,326 DEBUG [org.alfresco.repo.content.transform.ContentTransformerRegistry] Searched for transformer: 
   source mimetype: text/plain
   target mimetype: image/png
   transformers: [ComplexContentTransformer[ average=10000ms], ComplexContentTransformer[ average=10000ms]]
16:19:34,327 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin
   random-access: true
16:19:34,327 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@12c3e9c
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@1c27878
16:19:34,327 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
16:19:34,436 DEBUG [org.alfresco.repo.content.filestore.FileContentWriter] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf
   random-access: true
16:19:34,436 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@759230
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@d0a524
16:19:34,436 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Opened channel onto content: 
   content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf, mimetype=application/pdf, size=0, encoding=UTF-8, locale=en_US]
   channel: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@d0a524
16:19:34,437 DEBUG [org.alfresco.repo.content.transform.AbstractContentTransformer2] Completed transformation: 
   reader: ContentAccessor[ contentUrl=store://2009/7/16/15/0/718a8153-debe-4bf2-b953-b58693e511cd.bin, mimetype=text/plain, size=966, encoding=utf-8, locale=en_US]
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   options: org.alfresco.repo.content.transform.magick.ImageTransformationOptions@133c8e5
   transformer: ProxyContentTransformer[ average=605ms]
16:19:34,437 DEBUG [org.alfresco.repo.content.AbstractContentWriter] Writer spawned new reader: 
   writer: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
   new reader: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:19:34,438 DEBUG [org.alfresco.repo.content.filestore.FileContentReader] Opened write channel to file: 
   file: /opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf
   random-access: true
16:19:34,438 DEBUG [org.alfresco.repo.content.AbstractContentReader] Created callback byte channel: 
   original: sun.nio.ch.FileChannelImpl@9f36b
   new: org.alfresco.repo.content.AbstractContentAccessor$CallbackFileChannel@14c0328
16:19:34,438 DEBUG [org.alfresco.repo.content.AbstractContentReader] Opened channel onto content: ContentAccessor[ contentUrl=store:///opt/alfresco/tomcat/temp/Alfresco/ComplextTransformer_intermediate_txt_6941854067661679873.pdf, mimetype=application/pdf, size=12741, encoding=UTF-8, locale=en_US]
16:19:34,442 INFO  [org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter] Creation of thumbnail 'doclib' failed
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

log from viewing a .pnm (JPG 2000) file, where the small preview thumbnail works but the large preview doesn't:
16:21:31,770 DEBUG [org.alfresco.repo.content.filestore.FileContentStore] Created content reader: 
   url: store://2009/7/16/14/57/0a5185d7-b049-4b18-ac6b-14339c6d6ff6.bin
   file: /opt/alfresco/alf_data/contentstore/2009/7/16/14/57/0a5185d7-b049-4b18-ac6b-14339c6d6ff6.bin
   reader: ContentAccessor[ contentUrl=store://2009/7/16/14/57/0a5185d7-b049-4b18-ac6b-14339c6d6ff6.bin, mimetype=null, size=2928552, encoding=UTF-8, locale=en_US]
16:21:32,111 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/c8725e31-5da8-4790-afe1-9b4dde0d74d3; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
16:21:33,098 DEBUG [org.alfresco.repo.thumbnail.ThumbnailServiceImpl] Getting thumbnail by name (nodeRef=workspace://SpacesStore/c8725e31-5da8-4790-afe1-9b4dde0d74d3; contentProperty={http://www.alfresco.org/model/content/1.0}content; thumbnailName=doclib)
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