topic Re: CIFS Crash? in Alfresco Archive

CIFS Crash?

prototribe — Wed, 07 Feb 2007 17:33:27 GMT

Hello, i've been having issues with my Alfresco installation and was looking for some help.I am using the 1.4 community release of Alfresco with the bundled java on centos 4.4 and today encountered a full crash of the jvm. Here is a snippet of the crash log:## An unexpected error has been detected b

Re: CIFS Crash?

prototribe — Thu, 08 Feb 2007 11:51:53 GMT

I've determined a bit more about the problem.

1. A power outage messed with the raid array (no bbu on the raid controller) corrupting several aspects of the filesystem, including the mysql based alfresco tables and possibly some of the files in the /opt/alfresco14 tree.
2. A restore from backup of just mysql does not correct the situation 100%, what we are left with is this error in apparently random locations of our repository.

org.alfresco.service.cmr.repository.InvalidNodeRefException: Node does not exist: workspace://SpacesStore/b256d59f-b6e6-11db-b7c4-b9ae3a6fb0f5‍

This occurs when accessing via CIFS. Accessing via web appears to work fine and provides the results expected. Accessing via ftp doesn't throw and exception, but provides an empty folder in the problem locations.
3. Deleting of the problem folder via the web works fine, however purging the problem folder via the web throws the InvalidNodeRefException.

My questions now are:
1. Are there any utilities to recover from this problem? Effectively something that eliminates bad db data (invalid nodes) based on what the files that are available.
2. Are there any other options or utilities that may help in recovering from this issue other than a restore from backup of both the /opt/alfresco14 tree and the mysql database? (something I am not looking forward to)

Thanks for any help that can be provided.

Re: CIFS Crash?

kevinr — Fri, 09 Feb 2007 09:53:01 GMT

You could try rebuilding the indexes - if there is a node in the Lucene indexes that is no longer present on the system then this could cause a problem. Rebuilding the indexes is easy. In your alfresco/extension/custom-db-connection.properties add these lines and restart the server:

# The index recovery mode (NONE, VALIDATE, AUTO, FULL)
index.recovery.mode=FULL

http://wiki.alfresco.com/wiki/Repository_Configuration

Then leave the server to do it's thing (CPU usage will be seen! and once it's done hopefully the problem will be solved.

Hope this helps,

Kevin

Re: CIFS Crash?

prototribe — Fri, 09 Feb 2007 19:00:21 GMT

Thanks for the suggestion. I will definitely try that if I encounter the problems again. I ended up restoring from backup…another sleepless night.

Re: CIFS Crash?

prototribe — Tue, 13 Feb 2007 05:34:56 GMT

Well, replaced the CPU tonight after another hard crash with fs and database corruption (love journaling db and filesystem), and ran the recovery suggested by kevinr. It did the trick. Saved me from the tape backups.

Is the "index.recovery.mode=FULL" sort of the magic bullet solution?

This next question is going beyond the inital problem, but my issues got me thinking (and nervous). Is there a way to bootstrap an alfresco instance from only the data contained in "alf_data". This would mean no usable database info at all.

If the answer is yes (even partial). What would and wouldn't get recovered?

Thanks,

Mark

Re: CIFS Crash?

edgar — Thu, 05 Apr 2007 16:24:14 GMT

Hi Kevin,

I suffer from "Node does not exist" errors quite frequently. It sometimes happens when I try to edit an existing .xml component.

I run Alfresco WCM 2.0.0 Community on Windows XP with the default HSQL database.

In your alfresco/extension/custom-db-connection.properties add these lines and restart the server:

# The index recovery mode (NONE, VALIDATE, AUTO, FULL)
index.recovery.mode=FULL

When I try this Alfresco does not start up but gives me the error:


18:17:34,798 ERROR [web.context.ContextLoader] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationChecker' defined in
 class path resource [alfresco/bootstrap-context.xml]: Error setting property values; nested exception is org.springfram
ework.beans.PropertyAccessExceptionsException: PropertyAccessExceptionsException (1 errors); nested propertyAccessExcept
ions are: [org.springframework.beans.MethodInvocationException: Property 'indexRecoveryMode' threw exception; nested exc
eption is java.lang.IllegalArgumentException: No enum const class org.alfresco.repo.node.index.FullIndexRecoveryComponen
t$RecoveryMode.FULL ]
‍‍‍‍‍‍‍‍‍

Any ideas?

cheers,

Edgar