While increasing the indexing load of version 5.5.3 I see threads where one merging thread is blocking other merging threads. But is this concurrent merging?
Bernd "Lucene Merge Thread #6" - Thread t@40280 java.lang.Thread.State: BLOCKED at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4008) - waiting to lock <6d75db> (a org.apache.solr.update.SolrIndexWriter) owned by "Lucene Merge Thread #8" t@53896 at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3655) at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:588) at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:626) Locked ownable synchronizers: - None "Lucene Merge Thread #7" - Thread t@40281 java.lang.Thread.State: BLOCKED at org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4166) - waiting to lock <6d75db> (a org.apache.solr.update.SolrIndexWriter) owned by "Lucene Merge Thread #8" t@53896 at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3655) at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:588) at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:626) Locked ownable synchronizers: - None "Lucene Merge Thread #8" - Thread t@53896 java.lang.Thread.State: RUNNABLE at java.lang.System.identityHashCode(Native Method) at org.apache.lucene.index.IndexReader.hashCode(IndexReader.java:302) at java.util.WeakHashMap.hash(WeakHashMap.java:298) at java.util.WeakHashMap.put(WeakHashMap.java:449) at java.util.Collections$SetFromMap.add(Collections.java:5461) at java.util.Collections$SynchronizedCollection.add(Collections.java:2035) - locked <4c8b5399> (a java.util.Collections$SynchronizedSet) at org.apache.lucene.index.IndexReader.registerParentReader(IndexReader.java:138) at org.apache.lucene.index.FilterLeafReader.<init>(FilterLeafReader.java:306) at org.apache.lucene.uninverting.UninvertingReader.<init>(UninvertingReader.java:184) at org.apache.solr.update.DeleteByQueryWrapper.wrap(DeleteByQueryWrapper.java:52) at org.apache.solr.update.DeleteByQueryWrapper.createWeight(DeleteByQueryWrapper.java:72) at org.apache.lucene.search.IndexSearcher.createWeight(IndexSearcher.java:904) at org.apache.lucene.search.IndexSearcher.createNormalizedWeight(IndexSearcher.java:887) at org.apache.lucene.index.BufferedUpdatesStream.applyQueryDeletes(BufferedUpdatesStream.java:713) at org.apache.lucene.index.BufferedUpdatesStream.applyDeletesAndUpdates(BufferedUpdatesStream.java:246) - locked <9f8d81c> (a org.apache.lucene.index.BufferedUpdatesStream) at org.apache.lucene.index.IndexWriter._mergeInit(IndexWriter.java:3834) - locked <6d75db> (a org.apache.solr.update.SolrIndexWriter) at org.apache.lucene.index.IndexWriter.mergeInit(IndexWriter.java:3792) - locked <6d75db> (a org.apache.solr.update.SolrIndexWriter) at org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3646) at org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:588) at org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:626) --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
