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https://issues.apache.org/jira/browse/HBASE-10032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-10032:
-----------------------------------
Attachment: 10032.patch
Without the attached patch, on JDK 8:
{noformat}
Running org.apache.hadoop.hbase.io.TestHeapSize
Tests run: 3, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 1.071 sec <<<
FAILURE!
Results :
Failed tests: testSizes(org.apache.hadoop.hbase.io.TestHeapSize):
expected:<400> but was:<416>
testNativeSizes(org.apache.hadoop.hbase.io.TestHeapSize): expected:<80> but
was:<88>
Tests run: 3, Failures: 2, Errors: 0, Skipped: 0
{noformat}
With the attached patch, on JDK 8:
{noformat}
Running org.apache.hadoop.hbase.io.TestHeapSize
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.878 sec
Results :
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0
{noformat}
With the attached patch, on JDK 7:
{noformat}
Running org.apache.hadoop.hbase.io.TestHeapSize
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.061 sec
Results :
Tests run: 3, Failures: 0, Errors: 0, Skipped: 0
{noformat}
> [JDK8] ConcurrentSkipListMap class size changed
> -----------------------------------------------
>
> Key: HBASE-10032
> URL: https://issues.apache.org/jira/browse/HBASE-10032
> Project: HBase
> Issue Type: Bug
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Trivial
> Fix For: 0.98.0
>
> Attachments: 10032.patch
>
>
> ConcurrentSkipListMap in JDK < 8 has as members an integer and 8 references.
> In JDK 8, this changes to 6 members only. We can accommodate this change by
> estimating the structure size rather than hardcoding it.
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