Ishan Chattopadhyaya created SOLR-12239:
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Summary: Enabling index sorting causes "segment not sorted with
indexSort=null"
Key: SOLR-12239
URL: https://issues.apache.org/jira/browse/SOLR-12239
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 7.1
Reporter: Ishan Chattopadhyaya
When index sorting is enabled on an existing collection/index (using
SortingMergePolicy), the collection reload causes the following exception:
{code}
java.util.concurrent.ExecutionException: org.apache.solr.common.SolrException:
Unable to create core [mycoll_shard1_replica_n1]
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$14(CoreContainer.java:671)
at
com.codahale.metrics.InstrumentedExecutorService$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$0(ExecutorUtil.java:188)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.solr.common.SolrException: Unable to create core
[mycoll_shard1_replica_n1]
at
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1045)
at
org.apache.solr.core.CoreContainer.lambda$load$13(CoreContainer.java:642)
at
com.codahale.metrics.InstrumentedExecutorService$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:989)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:844)
at
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1029)
... 7 more
Caused by: org.apache.solr.common.SolrException: Error opening new searcher
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2076)
at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:2196)
at org.apache.solr.core.SolrCore.initSearcher(SolrCore.java:1072)
at org.apache.solr.core.SolrCore.<init>(SolrCore.java:961)
... 9 more
Caused by: org.apache.lucene.index.CorruptIndexException: segment not sorted
with indexSort=null (resource=_0(7.1.0):C1)
at
org.apache.lucene.index.IndexWriter.validateIndexSort(IndexWriter.java:1185)
at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1108)
at
org.apache.solr.update.SolrIndexWriter.<init>(SolrIndexWriter.java:119)
at
org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:94)
at
org.apache.solr.update.DefaultSolrCoreState.createMainIndexWriter(DefaultSolrCoreState.java:257)
at
org.apache.solr.update.DefaultSolrCoreState.getIndexWriter(DefaultSolrCoreState.java:131)
at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:2037)
... 12 more
{code}
This means that the user actually needs to delete the index segments, reload
the collection and then re-index. This is bad user experience.
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