I'm using SolrCloud 4.10.3 and the current setup is simple using 3 nodes with 1 shard. After a rolling restart of the Solr cluster I've ended up with 2 failing nodes reporting the following
org.apache.solr.servlet.SolrDispatchFilter null:org.apache.solr.common.SolrException: SolrCore 'core' is not available due to init failure: Error opening new searcher Caused by: org.apache.solr.common.SolrException: Error opening new searcher at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1574) at org.apache.solr.core.SolrCore.getSearcher(SolrCore.java:1686) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:853) ... 8 more Caused by: java.nio.file.NoSuchFileException: /path/to/index/segments_1 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:334) at org.apache.lucene.store.MMapDirectory.openInput(MMapDirectory.java:196) at org.apache.lucene.store.Directory.openChecksumInput(Directory.java:113) at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:341) at org.apache.lucene.index.SegmentInfos$1.doBody(SegmentInfos.java:454) at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:906) at org.apache.lucene.index.SegmentInfos$FindSegmentsFile.run(SegmentInfos.java:752) at org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:450) at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:792) at org.apache.solr.update.SolrIndexWriter.<init>(SolrIndexWriter.java:77) at org.apache.solr.update.SolrIndexWriter.create(SolrIndexWriter.java:64) at org.apache.solr.update.DefaultSolrCoreState.createMainIndexWriter(DefaultSolrCoreState.java:279) at org.apache.solr.update.DefaultSolrCoreState.getIndexWriter(DefaultSolrCoreState.java:111) at org.apache.solr.core.SolrCore.openNewSearcher(SolrCore.java:1537) ... 10 more Checking the index directory of each node I found out that only *segments.gen* was inside. What I could not determine is how I ended up with this single file. Looking at the logs I could not find anything related. The 3rd node had its index intact. Has anyone else encountered something similar? -- View this message in context: http://lucene.472066.n3.nabble.com/Index-directory-containing-only-segments-gen-tp4186045.html Sent from the Solr - User mailing list archive at Nabble.com.