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https://issues.apache.org/jira/browse/SOLR-9203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327114#comment-15327114
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Mike Rocke commented on SOLR-9203:
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Sorry about that, I will consult the user list next time.
Thanks for clarifying my second point. To summarize, in order for CDCR to work,
the update log must be configured to use CdcrUpdateLog class.
> Cross Data Center Replication for existing Indexes
> --------------------------------------------------
>
> Key: SOLR-9203
> URL: https://issues.apache.org/jira/browse/SOLR-9203
> Project: Solr
> Issue Type: Bug
> Components: CDCR
> Affects Versions: 6.0
> Reporter: Mike Rocke
>
> Hi all,
> After several attempts I am unable to get CDCR working for a solr core with
> existing documents.
> My first attempt failed due to incompatibility with the tlog file names,
> Caused by: java.lang.StringIndexOutOfBoundsException: String index out of
> range: -1
> at java.lang.String.substring(String.java:1967)
> at
> org.apache.solr.update.CdcrUpdateLog.getLastLogId(CdcrUpdateLog.java:154)
> at org.apache.solr.update.UpdateLog.init(UpdateLog.java:282)
> at org.apache.solr.update.CdcrUpdateLog.init(CdcrUpdateLog.java:77)
> at org.apache.solr.update.UpdateHandler.<init>(UpdateHandler.java:137)
> This is going from having an update handler of
> <updateLog>
> <str name="dir">/somedir/</str>
> </updateLog>
> to
> <updateLog class="solr.CdcrUpdateLog">
> <str name="dir">/somedir</str>
> </updateLog>
> I believe this is due to the file patterns differing for the default update
> log class and the CdcrUpdateLog class.
> I then continued to follow
> https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=62687462#CrossDataCenterReplication(CDCR)-FirstTime
> which does not describe having the CdcrUpdateLog class, to which solr will
> now start erroring with
> Caused by: org.apache.solr.common.SolrException: Solr instance is not
> configured with the cdcr update log.
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:771)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:642)
> at org.apache.solr.core.CoreContainer.create(CoreContainer.java:817)
> at org.apache.solr.core.CoreContainer.access$000(CoreContainer.java:88)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:468)
> at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:459)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> ... 1 more
> Caused by: org.apache.solr.common.SolrException: Solr instance is not
> configured with the cdcr update log.
> at
> org.apache.solr.handler.CdcrRequestHandler.inform(CdcrRequestHandler.java:223)
> at
> org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:675)
> at org.apache.solr.core.SolrCore.<init>(SolrCore.java:751)
> ... 10 more
> I may have completely missunderstood but please advise?
> Thanks
> Mike
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