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From "Steve Rowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-11406) Solr 7.0 cannot read indexes from 6.x versions
Date Wed, 27 Sep 2017 23:42:03 GMT

     [ https://issues.apache.org/jira/browse/SOLR-11406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Rowe updated SOLR-11406:
------------------------------
    Attachment: SOLR-11406.patch

bq. I'll try switching to a simple loop; I expect it won't have the same problem.

Patch, fixes the issue for me.

I'm going to look at creating back-compat tests.

> Solr 7.0 cannot read indexes from 6.x versions
> ----------------------------------------------
>
>                 Key: SOLR-11406
>                 URL: https://issues.apache.org/jira/browse/SOLR-11406
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 7.0
>         Environment: C:\Users\sheisey\Downloads\solr-7.0.0>ver
> Microsoft Windows [Version 6.1.7601]
> C:\Users\sheisey\Downloads\solr-7.0.0>java -version
> java version "1.8.0_144"
> Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
> Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)
>            Reporter: Shawn Heisey
>         Attachments: SOLR-11406.patch
>
>
> Reproduced a user problem from the mailing list.
> Steps:
>  * Start Solr 6.6.0 from an extracted download with "bin/solr start"
>  * Create a core: "bin/solr create -c foo"
>  * Add documents with the admin UI
>  * Stop Solr
>  * Copy solr-6.6.0/server/solr/foo to solr-7.0.0/server/solr in extracted Solr 7.0 download
>  * Start Solr 7.0 with "bin/solr start"
> (I was on Windows, so I used backslashes everywhere these steps have forward slashes)
> Solr will be unable to start the core.  Error and stacktrace:
> {code}
> 2017-09-27 15:13:30.050 ERROR (coreContainerWorkExecutor-2-thread-1) [   ] o.a.s.c.CoreContainer
Error waiting for SolrCore to be created
> java.util.concurrent.ExecutionException: org.apache.solr.common.SolrException: Unable
to create core [foo]
>     at java.util.concurrent.FutureTask.report(FutureTask.java:122)
>     at java.util.concurrent.FutureTask.get(FutureTask.java:192)
>     at org.apache.solr.core.CoreContainer.lambda$load$118(CoreContainer.java:647)
>     at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:176)
>     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>     at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$128(ExecutorUtil.java:188)
>     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>     at java.lang.Thread.run(Thread.java:748)
> Caused by: org.apache.solr.common.SolrException: Unable to create core [foo]
>     at org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:996)
>     at org.apache.solr.core.CoreContainer.lambda$load$117(CoreContainer.java:619)
>     at com.codahale.metrics.InstrumentedExecutorService$InstrumentedCallable.call(InstrumentedExecutorService.java:197)
>     ... 5 more
> Caused by: org.apache.solr.common.SolrException: Error opening new searcher
>     at org.apache.solr.core.SolrCore.<init>(SolrCore.java:988)
>     at org.apache.solr.core.SolrCore.<init>(SolrCore.java:843)
>     at org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:980)
>     ... 7 more
> Caused by: org.apache.solr.common.SolrException: Error opening new searcher
>     at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2066)
>     at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:2186)
>     at org.apache.solr.core.SolrCore.initSearcher(SolrCore.java:1071)
>     at org.apache.solr.core.SolrCore.<init>(SolrCore.java:960)
>     ... 9 more
> Caused by: java.lang.NullPointerException
>     at java.util.Objects.requireNonNull(Objects.java:203)
>     at java.util.Optional.<init>(Optional.java:96)
>     at java.util.Optional.of(Optional.java:108)
>     at java.util.stream.ReduceOps$2ReducingSink.get(ReduceOps.java:129)
>     at java.util.stream.ReduceOps$2ReducingSink.get(ReduceOps.java:107)
>     at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
>     at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
>     at java.util.stream.ReferencePipeline.reduce(ReferencePipeline.java:479)
>     at org.apache.solr.index.SlowCompositeReaderWrapper.<init>(SlowCompositeReaderWrapper.java:76)
>     at org.apache.solr.index.SlowCompositeReaderWrapper.wrap(SlowCompositeReaderWrapper.java:57)
>     at org.apache.solr.search.SolrIndexSearcher.<init>(SolrIndexSearcher.java:252)
>     at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2034)
>     ... 12 more
> {code}



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