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https://issues.apache.org/jira/browse/SOLR-12063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16396863#comment-16396863
]
Amrit Sarkar commented on SOLR-12063:
-------------------------------------
If we have:
{code}
<updateLog class="solr.CdcrUpdateLog">
<str name="dir">${solr.ulog.dir:}</str>
<str name="maxNumLogsToKeep">${solr.ulog.maxNumLogsToKeep:10}</str>
<str name="numRecordsToKeep">${solr.ulog.numRecordsToKeep:100}</str>
<int name="tlogDfsReplication">${solr.ulog.tlogDfsReplication:2}</int>
</updateLog>
{code}
in {{solrconfig-tlog.xml}}; {{TestStressRecovery}} throws the {{Unexpected log
entry or corrupt log. Entry=..........}} but test doesn't fail
> Fix tlog entry indexes in UpdateLog for CDCR to work smoothly.
> --------------------------------------------------------------
>
> Key: SOLR-12063
> URL: https://issues.apache.org/jira/browse/SOLR-12063
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: CDCR
> Affects Versions: 7.2, 7.2.1
> Reporter: Amrit Sarkar
> Assignee: Varun Thacker
> Priority: Major
> Attachments: SOLR-12063.patch, SOLR-12063.patch, SOLR-12063.patch,
> SOLR-12063.patch, test-report-PeerSyncTest, test-report-TestStressRecovery
>
>
> In *UpdateLog*, {{RecentUpdates}} reads the entry of tlogs, and throughout
> the project the entry indexes for various operations are consistent, but odd
> in this part. As we included new entry in TransactionLog for CDCR, read
> operations in {{update()}} method of {{RecentUpdates}} throw error rightfully
> as elements are read from wrong indexes of tlog entry. The entry indexes of
> llog should be consistent throughout.
> {code}
> [beaster] 2> 27394 WARN (qtp97093533-72) [n:127.0.0.1:44658_solr
> c:cdcr-cluster1 s:shard1 r:core_node3 x:cdcr-cluster1_shard1_replica_n1]
> o.a.s.u.UpdateLog Unexpected log entry or corrupt log. Entry=[2,
> -1594312216007409664, [B@28e6859c, true]
> [beaster] 2> java.lang.ClassCastException: java.lang.Boolean cannot be
> cast to [B
> [beaster] 2> at
> org.apache.solr.update.UpdateLog$RecentUpdates.update(UpdateLog.java:1443)
> [beaster] 2> at
> org.apache.solr.update.UpdateLog$RecentUpdates.<init>(UpdateLog.java:1340)
> [beaster] 2> at
> org.apache.solr.update.UpdateLog.getRecentUpdates(UpdateLog.java:1513)
> [beaster] 2> at
> org.apache.solr.handler.CdcrRequestHandler.handleShardCheckpointAction(CdcrRequestHandler.java:448)
> [beaster] 2> at
> org.apache.solr.handler.CdcrRequestHandler.handleRequestBody(CdcrRequestHandler.java:198)
> [beaster] 2> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:195)
> [beaster] 2> at
> org.apache.solr.core.SolrCore.execute(SolrCore.java:2503)
> [beaster] 2> at
> org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:711)
> [beaster] 2> at
> org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:517)
> [beaster] 2> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:384)
> [beaster] 2> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:330)
> [beaster] 2> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
> [beaster] 2> at
> org.apache.solr.client.solrj.embedded.JettySolrRunner$DebugFilter.doFilter(JettySolrRunner.java:139)
> [beaster] 2> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
> [beaster] 2> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
> [beaster] 2> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
> [beaster] 2> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
> [beaster] 2> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
> [beaster] 2> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
> [beaster] 2> at
> org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
> [beaster] 2> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
> [beaster] 2> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
> {code}
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