Hi, I sometimes get FileNotFoundExceptions from the recovery of a core in my log. Does anyone know the reason for this? As I understand Solr this may (or should) not happen.
Markus 2015-08-04 15:06:07,646|INFO|mpKPXpbUwp|org.apache.solr.update.UpdateLog|Starting to buffer updates. FSUpdateLog{state=ACTIVE, tlog=tlog{file=/www/solrcloud/data/1yy0uawc-products/tlog/tlog.0000000000000073861 refcount=1}} 2015-08-04 15:06:07,646|INFO|mpKPXpbUwp|org.apache.solr.cloud.RecoveryStrategy|Attempting to replicate from http://<solr-host>/solr/1yy0uawc-products/. core=1yy0uawc-products 2015-08-04 15:06:07,833|INFO|mpKPXpbUwp|org.apache.solr.handler.IndexFetcher|Master's generation: 87681 2015-08-04 15:06:07,833|INFO|mpKPXpbUwp|org.apache.solr.handler.IndexFetcher|Slave's generation: 87679 2015-08-04 15:06:07,833|INFO|mpKPXpbUwp|org.apache.solr.handler.IndexFetcher|Starting replication process 2015-08-04 15:06:07,886|INFO|mpKPXpbUwp|org.apache.solr.handler.IndexFetcher|Number of files in latest index in master: 82 2015-08-04 15:06:07,887|INFO|mpKPXpbUwp|org.apache.solr.core.CachingDirectoryFactory|return new directory for /www/solrcloud/data/1yy0uawc-products/index.20150804150607887 2015-08-04 15:06:07,892|INFO|mpKPXpbUwp|org.apache.solr.core.CachingDirectoryFactory|looking to close /www/solrcloud/data/1yy0uawc-products/index.20150804150607887 [CachedDir<<refCount=0;path=/www/solrcloud/data/1yy0uawc-products/index.20150804150607887;done=true>>] 2015-08-04 15:06:07,892|INFO|mpKPXpbUwp|org.apache.solr.core.CachingDirectoryFactory|Closing directory: /www/solrcloud/data/1yy0uawc-products/index.20150804150607887 2015-08-04 15:06:07,892|INFO|mpKPXpbUwp|org.apache.solr.core.CachingDirectoryFactory|Removing directory before core close: /www/solrcloud/data/1yy0uawc-products/index.20150804150607887 2015-08-04 15:06:07,892|ERROR|mpKPXpbUwp|org.apache.solr.common.SolrException|Index fetch failed :org.apache.solr.common.SolrException: Index fetch failed : at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:515) at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:254) at org.apache.solr.handler.ReplicationHandler.doFetch(ReplicationHandler.java:380) at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:161) at org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:440) at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:229) Caused by: java.nio.file.NoSuchFileException: /www/solrcloud/data/1yy0uawc-products/index.20150803081018547/segments_1vnj at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86) at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:177) at java.nio.channels.FileChannel.open(FileChannel.java:287) at java.nio.channels.FileChannel.open(FileChannel.java:335) at org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:213) at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:110) at org.apache.lucene.index.SegmentInfos.readCommit(SegmentInfos.java:281) at org.apache.solr.handler.IndexFetcher.fetchLatestIndex(IndexFetcher.java:371) ... 5 more 2015-08-04 15:06:07,892|ERROR|mpKPXpbUwp|org.apache.solr.common.SolrException|Error while trying to recover:org.apache.solr.common.SolrException: Replication for recovery failed. at org.apache.solr.cloud.RecoveryStrategy.replicate(RecoveryStrategy.java:164) at org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:440) at org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:229) 2015-08-04 15:06:07,893|INFO|mpKPXpbUwp|org.apache.solr.update.UpdateLog|Dropping buffered updates FSUpdateLog{state=BUFFERING, tlog=tlog{file=/www/solrcloud/data/1yy0uawc-products/tlog/tlog.0000000000000073861 refcount=1}} 2015-08-04 15:06:07,893|ERROR|mpKPXpbUwp|org.apache.solr.cloud.RecoveryStrategy|Recovery failed - trying again... (0) core=1yy0uawc-products 2015-08-04 15:06:07,893|INFO|mpKPXpbUwp|org.apache.solr.cloud.RecoveryStrategy|Wait 2.0 seconds before trying to recover again (1)