topic Re: solr service stops every day in Alfresco Forum

solr service stops every day

Peter_Adam_SB — Fri, 14 May 2021 08:16:22 GMT

OS: CentOS 7

Alfresco: 6.2.0 Community

solr: Alfresco Search Services 1.3.1 using Apache Solr 6.6.5

Java: java-11-openjdk-11.0.10.0.9-1.el7_9.x86_64

Every day the solr service stops working. The only message I was able to get in it's solr.log is "ERROR (qtp947679291-17) [ x:alfresco] o.a.s.h.RequestHandlerBase org.apache.lucene.util.automaton.TooComplexToDeterminizeException: Determinizing automaton with 15226 states and 30003 transitions would result in more than 10000 states."

In solr_oom_killer-8983-2021-05-13_17_38_52.log:

"Running OOM killer script for process 2423 for Solr on port 8983
Killed process 2423"

The issue started last week, indexes has been rebuilt since then, no effect. What can cause this error?

Re: solr service stops every day

angelborroy — Fri, 14 May 2021 08:56:51 GMT

Do you have additional log?

It should be required to identify the operation that is provoking this exception.

Re: solr service stops every day

Peter_Adam_SB — Fri, 14 May 2021 10:19:00 GMT

I have found this in catalina.out three minutes before:

2021-05-13 17:35:08,540  INFO  [webscripts.connector.RemoteClient] [https-openssl-nio-8443-exec-18] Exceptio
n calling (GET) http://localhost:8080/alfresco/s/slingshot/search?facetFields=%7Bhttp%3A%2F%2Fwww.alfresco.o
rg%2Fmodel%2Fcontent%2F1.0%7Dcreator%2C%7Bhttp%3A%2F%2Fwww.alfresco.org%2Fmodel%2Fcontent%2F1.0%7Dcontent.mi
metype%2C%7Bhttp%3A%2F%2Fwww.alfresco.org%2Fmodel%2Fcontent%2F1.0%7Dcreated%2C%7Bhttp%3A%2F%2Fwww.alfresco.o
rg%2Fmodel%2Fcontent%2F1.0%7Dcontent.size%2C%7Bhttp%3A%2F%2Fwww.alfresco.org%2Fmodel%2Fcontent%2F1.0%7Dmodif
ier%2C%7Bhttp%3A%2F%2Fwww.alfresco.org%2Fmodel%2Fcontent%2F1.0%7Dmodified&filters=&encodedFilters=&term=0096
5806*&tag=&startIndex=0&sort=&site=&rootNode=alfresco%3A%2F%2Fcompany%2Fhome&repo=true&query=&pageSize=25&ma
xResults=0&noCache=1620920108282&spellcheck=true&highlightPrefix=%02&highlightPostfix=%03&highlightFields=cm
%3Aname%2Ccm%3Adescription%2Ccm%3Atitle%2Ccontent%2Cia%3AdescriptionEvent%2Cia%3AwhatEvent%2Clnk%3Atitle&hig
hlightFragmentSize=100&highlightSnippetCount=255&highlightMergeContiguous=false&highlightUsePhraseHighlighte
r=true&alf_ticket=TICKET_29198e4a927c3d4ee4066959751844e01f143a02

Re: solr service stops every day

angelborroy — Fri, 14 May 2021 13:56:12 GMT

You could try to increase default value for maxDeterminizedStates (https://solr.apache.org/guide/6_6/tokenizers.html#Tokenizers-SimplifiedRegularExpressionPatternTokenizer) but not sure why this exception is happening.

Re: solr service stops every day

Peter_Adam_SB — Mon, 17 May 2021 08:58:03 GMT

I have only the following tokenizers in my /opt/alfresco-6.2.0/alfresco-search-services/solrhome/alfresco/conf/schema.xml config file:

solr.KeywordTokenizerFactory
solr.StandardTokenizerFactory
solr.ICUTokenizerFactory
org.apache.solr.analysis.WordDelimiterFilterFactory
solr.JapaneseTokenizerFactory
org.apache.lucene.analysis.th.ThaiTokenizerFactory

Should I replace one (for example, for the Hungarian language)? Or look somewhere else?

Re: solr service stops every day

Peter_Adam_SB — Wed, 19 May 2021 13:40:01 GMT

I have changed the SOLR_JAVA_MEM="-Xms1g -Xmx1g" setting to SOLR_JAVA_MEM="-Xms1g -Xmx4g" in the solr.in.sh file.

Today there were no stops.

solr status shows now stable 1.1 GB used out of 2.3 GB.

Re: solr service stops every day

EddieMay — Thu, 20 May 2021 09:11:29 GMT

Hi @Peter_Adam_SB

Great news you got a fix & thanks for updating your thread - super useful to other users.

Best wishes,

Re: solr service stops every day

erkut3512 — Tue, 05 Jul 2022 09:40:51 GMT

Where is the file location of solr.in.sh ? I couldnt find it. Can you help please ?

Alfresco 5.2

Re: solr service stops every day

abhinavmishra14 — Tue, 05 Jul 2022 14:13:01 GMT

It depends on what version of solr you are using. For solr6, it is available at the root of the installation path.

For example if you have installed solr6 (ASS 1.0 to ASS 1.3 is supported for ACS5.2.x) in:

Windows: C:\alfresco-search-services-1.3.0, then solr.in.cmd can be found: C:\alfresco-search-services-1.3.0\solr.in.cmd

Linux: /usr/local/alfresco-search-services-1.3.0 then solr.in.sh can be found: /usr/local/alfresco-search-services-1.3.0/solr.in.sh

If you are using solr4, then the java memory options needs to be set in <TomcatInstallDirectory>\bin\catalina.bat or <TomcatInstallDirectory>\bin\catalina.sh

Example:

catalina.bat:

set JAVA_OPTS=%JAVA_OPTS% -Xms1g -Xmx4g

catalina.sh:

JAVA_OPTS=%JAVA_OPTS% -Xms1g -Xmx4g