[ https://issues.apache.org/jira/browse/SOLR-11381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795871#comment-16795871 ]
ASF subversion and git services commented on SOLR-11381: -------------------------------------------------------- Commit 6064b03ac6f61b077dcfc6262568e466f2bf6467 in lucene-solr's branch refs/heads/branch_8x from Kevin Risden [ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=6064b03ac ] SOLR-13330: Improve HDFS tests Related JIRAs: * SOLR-11010 * SOLR-11381 * SOLR-12040 * SOLR-13297 Changes: * Consolidate hdfs configuration into HdfsTestUtil * Ensure socketTimeout long enough for HDFS tests * Ensure HdfsTestUtil.getClientConfiguration used in tests * Replace deprecated HDFS calls * Use try-with-resources to ensure closing of HDFS resources Signed-off-by: Kevin Risden <kris...@apache.org> > HdfsDirectoryFactory throws NPE on cleanup because file system has been closed > ------------------------------------------------------------------------------ > > Key: SOLR-11381 > URL: https://issues.apache.org/jira/browse/SOLR-11381 > Project: Solr > Issue Type: Bug > Security Level: Public(Default Security Level. Issues are Public) > Components: Hadoop Integration, hdfs > Reporter: Shalin Shekhar Mangar > Priority: Trivial > Fix For: 8.1, master (9.0) > > > I saw this happening on tests related to autoscaling. The old directory clean > up is triggered on core close in a separate thread. This can cause a race > condition where the filesystem is closed before the cleanup starts running. > Then a NPE is thrown and cleanup fails. > Fixing the NPE is simple but I think this is a real bug where old directories > can be left around on HDFS. I don't know enough about HDFS to investigate > further. Leaving it here for interested people to pitch in. > {code} > 105029 ERROR > (OldIndexDirectoryCleanupThreadForCore-control_collection_shard1_replica_n1) > [n:127.0.0.1:58542_ c:control_collection s:shard1 r:core_node2 > x:control_collection_shard1_replica_n1] o.a.s.c.HdfsDirectoryFactory Error > checking for old index directories to clean-up. > java.io.IOException: Filesystem closed > at org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:808) > at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:2083) > at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:2069) > at > org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:791) > at > org.apache.hadoop.hdfs.DistributedFileSystem.access$700(DistributedFileSystem.java:106) > at > org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:853) > at > org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:849) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:860) > at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1517) > at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1557) > at > org.apache.solr.core.HdfsDirectoryFactory.cleanupOldIndexDirectories(HdfsDirectoryFactory.java:540) > at > org.apache.solr.core.SolrCore.lambda$cleanupOldIndexDirectories$32(SolrCore.java:3019) > at java.lang.Thread.run(Thread.java:745) > 105030 ERROR > (OldIndexDirectoryCleanupThreadForCore-control_collection_shard1_replica_n1) > [n:127.0.0.1:58542_ c:control_collection s:shard1 r:core_node2 > x:control_collection_shard1_replica_n1] o.a.s.c.SolrCore Failed to cleanup > old index directories for core control_collection_shard1_replica_n1 > java.lang.NullPointerException > at > org.apache.solr.core.HdfsDirectoryFactory.cleanupOldIndexDirectories(HdfsDirectoryFactory.java:558) > at > org.apache.solr.core.SolrCore.lambda$cleanupOldIndexDirectories$32(SolrCore.java:3019) > at java.lang.Thread.run(Thread.java:745) > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org