Travis Thompson created HADOOP-11098:
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Summary: [jdk8] MaxDirectMemorySize default changed between JDK7
and 8
Key: HADOOP-11098
URL: https://issues.apache.org/jira/browse/HADOOP-11098
Project: Hadoop Common
Issue Type: Bug
Reporter: Travis Thompson
I noticed this because the NameNode UI shows "Max Non Heap Memory" which after
some digging I found correlates to MaxDirectMemorySize.
JDK7
{noformat}
Heap Memory used 16.75 GB of 23 GB Heap Memory. Max Heap Memory is 23.7 GB.
Non Heap Memory used 57.32 MB of 67.38 MB Commited Non Heap Memory. Max Non
Heap Memory is 130 MB.
{noformat}
JDK8
{noformat}
Heap Memory used 3.02 GB of 7.65 GB Heap Memory. Max Heap Memory is 23.7 GB.
Non Heap Memory used 103.12 MB of 104.41 MB Commited Non Heap Memory. Max Non
Heap Memory is -1 B.
{noformat}
More information in first comment.
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