[ https://issues.apache.org/jira/browse/PHOENIX-3806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15985520#comment-15985520 ]
Lars Hofhansl edited comment on PHOENIX-3806 at 4/26/17 11:15 PM: ------------------------------------------------------------------ Yeah we need to look at all the versions. I think most importantly we should fix summation issue that [~vincentpoon] identified. Imagine we had 1000 versions... We'd be making 500500 index updates per row and indexed col. was (Author: lhofhansl): Yeah we need to look at all the versions. I think most importantly we should fix summation issue that [~vincentpoon] identified. Imagine we had 1000 versions... We'd be making 500500 index updates per row and col. > IndexUpdateManager spending a lot of time sorting mutations on Index rebuild > ---------------------------------------------------------------------------- > > Key: PHOENIX-3806 > URL: https://issues.apache.org/jira/browse/PHOENIX-3806 > Project: Phoenix > Issue Type: Bug > Reporter: Lars Hofhansl > > Here's the stack trace. The Array contains 50001 Delete Mutations in this > case. > It seems the code is sorting this over and over again. > {code} > Thread 170 (B.DefaultRpcServer.handler=67,queue=7,port=60020): > State: RUNNABLE > Blocked count: 220598 > Waited count: 377933 > Stack: > java.util.TimSort.binarySort(TimSort.java:296) > java.util.TimSort.sort(TimSort.java:239) > java.util.Arrays.sort(Arrays.java:1438) > > org.apache.phoenix.hbase.index.covered.update.SortedCollection.iterator(SortedCollection.java:78) > > org.apache.phoenix.hbase.index.covered.update.IndexUpdateManager.fixUpCurrentUpdates(IndexUpdateManager.java:128) > > org.apache.phoenix.hbase.index.covered.update.IndexUpdateManager.addIndexUpdate(IndexUpdateManager.java:115) > > org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addCurrentStateMutationsForBatch(NonTxIndexBuilder.java:333) > > org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addUpdateForGivenTimestamp(NonTxIndexBuilder.java:258) > > org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.addMutationsForBatch(NonTxIndexBuilder.java:231) > > org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.batchMutationAndAddUpdates(NonTxIndexBuilder.java:109) > > org.apache.phoenix.hbase.index.covered.NonTxIndexBuilder.getIndexUpdate(NonTxIndexBuilder.java:71) > > org.apache.phoenix.hbase.index.builder.IndexBuildManager$1.call(IndexBuildManager.java:137) > > org.apache.phoenix.hbase.index.builder.IndexBuildManager$1.call(IndexBuildManager.java:133) > java.util.concurrent.FutureTask.run(FutureTask.java:266) > > com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293) > > com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:61) > > org.apache.phoenix.hbase.index.parallel.BaseTaskRunner.submit(BaseTaskRunner.java:58) > > org.apache.phoenix.hbase.index.parallel.BaseTaskRunner.submitUninterruptible(BaseTaskRunner.java:99) > > org.apache.phoenix.hbase.index.builder.IndexBuildManager.getIndexUpdate(IndexBuildManager.java:144) > > org.apache.phoenix.hbase.index.Indexer.preBatchMutateWithExceptions(Indexer.java:324) > Thread 169 (B.DefaultRpcServer.handler=66,queue=6,port=60020): > {code} > [~jamestaylor] -- This message was sent by Atlassian JIRA (v6.3.15#6346)