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https://issues.apache.org/jira/browse/SOLR-7866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14654186#comment-14654186
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Timothy Potter commented on SOLR-7866:
--------------------------------------
At first, I thought this was due to 5.x code reading a 4.x index, but i was
able to get the max version for an index created with 4.2 on branch_5x. So I
don't know what's going on here exactly ...
However, since this code is an optimization, I don't think we should fail to
initialize the core, so I'm going to catch Exception instead of just
IOException so that at least the index is usable, albeit with degraded indexing
performance.
> getMaxVersionFromIndex is throwing an NPE if some segments are not current
> --------------------------------------------------------------------------
>
> Key: SOLR-7866
> URL: https://issues.apache.org/jira/browse/SOLR-7866
> Project: Solr
> Issue Type: Bug
> Reporter: Timothy Potter
> Assignee: Timothy Potter
> Priority: Blocker
> Fix For: 5.3
>
>
> Reported by user on #solr irc (via Shalin)
> {code}
> java.lang.NullPointerException
> at
> org.apache.lucene.util.NumericUtils.prefixCodedToLong(NumericUtils.java:226)
> at org.apache.lucene.util.NumericUtils.getMaxLong(NumericUtils.java:582)
> at
> org.apache.solr.update.VersionInfo.getMaxVersionFromIndex(VersionInfo.java:234)
> at
> org.apache.solr.update.UpdateLog.seedBucketsWithHighestVersion(UpdateLog.java:1580)
> at
> org.apache.solr.update.UpdateLog.seedBucketsWithHighestVersion(UpdateLog.java:1610)
> at org.apache.solr.core.SolrCore.seedVersionBuckets(SolrCore.java:861)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:843)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:658)
> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:637)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:381)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:375)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor$1.run(ExecutorUtil.java:148)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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