FAQ
Hi everyone,

We are using very early version of Solr 4.0 and we've some replication
problems. Actually we used this build more than one year without any
problem but when I made some changes on schema.xml, the following problem
started.

I've just changed schema.xml with adding multiValued="true" attribute to
two dynamic fields.

Before:
....
<dynamicField name="*_spec" type="string" indexed="true" stored="false" />
<dynamicField name="*_seo" type="string" indexed="true" stored="false" />
....

After:
....
<dynamicField name="*_spec" type="string" indexed="true" stored="false" *
multiValued="true"* />
<dynamicField name="*_seo" type="string" indexed="true" stored="false" *
multiValued="true"* />
....

After starting tomcats with new configuration, there are no problems
occurred. But after a while, I'm seeing this error:

*Mar 20, 2012 2:00:05 PM org.apache.solr.handler.ReplicationHandler doFetch
SEVERE: SnapPull failed
org.apache.solr.common.SolrException: Index fetch failed :
at
org.apache.solr.handler.SnapPuller.fetchLatestIndex(SnapPuller.java:340)
at
org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:265)
at org.apache.solr.handler.SnapPuller$1.run(SnapPuller.java:166)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at
java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.lucene.index.IndexFormatTooNewException: Format
version is not supported in file 'segments_1': -12 (needs to be between -9
and -11)
at
org.apache.lucene.index.codecs.DefaultSegmentInfosReader.read(DefaultSegmentInfosReader.java:51)
at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:230)
at
org.apache.lucene.index.IndexFileDeleter.(IndexWriter.java:770)
at
org.apache.solr.update.SolrIndexWriter.(UpdateHandler.java:102)
at
org.apache.solr.update.DirectUpdateHandler2.openWriter(DirectUpdateHandler2.java:111)
at
org.apache.solr.update.DirectUpdateHandler2.forceOpenWriter(DirectUpdateHandler2.java:297)
at org.apache.solr.handler.SnapPuller.doCommit(SnapPuller.java:484)
at
org.apache.solr.handler.SnapPuller.fetchLatestIndex(SnapPuller.java:330)
... 11 more
Mar 20, 2012 2:00:16 PM org.apache.solr.update.SolrIndexWriter finalize
SEVERE: SolrIndexWriter was not closed prior to finalize(), indicates a bug
-- POSSIBLE RESOURCE LEAK!!!*

After above error, it works for a while and then tomcats are going down
because of out of memory problems.

Could this be a bug? What do you suggest? Please don't suggest me to update
Solr to current version in trunk because we did a lot of changes related
with our build of Solr. Updating to current Solr would take at least a
couple of weeks. But we need an immediate solution.

We are using DIH, our schema version is 1.3, both master and slaves using
same binaries, libraries etc. Here are some details about our solr build:

Solr Specification Version: 4.0.0.2011.03.28.06.20.50
Solr Implementation Version: 4.0-SNAPSHOT 1086110 - Administrator -
2011-03-28 06:20:50
Lucene Specification Version: 4.0-SNAPSHOT
Lucene Implementation Version: 4.0-SNAPSHOT 1086110 - 2011-03-28 06:22:18

Thanks for any help.

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postedMar 21, '12 at 12:49p
activeMar 23, '12 at 6:36p
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