[ https://issues.apache.org/jira/browse/FLINK-3206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15110953#comment-15110953 ]
Maximilian Michels commented on FLINK-3206: ------------------------------------------- Fixed in c57111c8587bd32e715243bd92482b91ff8b8651. > Heap size for non-pre-allocated off-heap memory > ----------------------------------------------- > > Key: FLINK-3206 > URL: https://issues.apache.org/jira/browse/FLINK-3206 > Project: Flink > Issue Type: Bug > Components: Start-Stop Scripts > Affects Versions: 1.0.0 > Reporter: Greg Hogan > Assignee: Maximilian Michels > Fix For: 1.0.0 > > > In {{taskmanager.sh}} the heap size is adjusted for off-heap memory only with > pre-allocation set to true. In {{TaskManager.scala}} the computation is > reversed to compute the {{directMemorySize}}. The effect is the JVM heap > settings are too high and the assumed size of direct memory is also too high. > {noformat} > taskmanager.memory.fraction: 0.9 > taskmanager.memory.off-heap: true > taskmanager.heap.mb: 18000 > {noformat} > With {{taskmanager.memory.preallocate: false}} > {noformat} > 13:44:29,015 INFO org.apache.flink.runtime.taskmanager.TaskManager > - -Xms18000M > 13:44:29,015 INFO org.apache.flink.runtime.taskmanager.TaskManager > - -Xmx18000M > 13:44:30,591 INFO org.apache.flink.runtime.taskmanager.TaskManager > - Limiting managed memory to 0.9 of the maximum memory size (161999 MB), > memory will be allocated lazily. > {noformat} > With {{taskmanager.memory.preallocate: true}} > {noformat} > 13:53:44,127 INFO org.apache.flink.runtime.taskmanager.TaskManager > - -Xms1800M > 13:53:44,127 INFO org.apache.flink.runtime.taskmanager.TaskManager > - -Xmx1800M > 13:53:45,743 INFO org.apache.flink.runtime.taskmanager.TaskManager > - Using 0.9 of the maximum memory size for managed off-heap memory (15524 > MB). > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)