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https://issues.apache.org/jira/browse/HBASE-14120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14632519#comment-14632519
]
Hadoop QA commented on HBASE-14120:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12745954/HBASE-14120.patch
against master branch at commit 338e39970ba8e4835733669b9252d073b2157b8a.
ATTACHMENT ID: 12745954
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 protoc{color}. The applied patch does not increase the
total number of protoc compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 checkstyle{color}. The applied patch does not increase the
total number of checkstyle errors
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 lineLengths{color}. The patch does not introduce lines
longer than 100
{color:green}+1 site{color}. The mvn post-site goal succeeds with this patch.
{color:red}-1 core tests{color}. The patch failed these unit tests:
{color:red}-1 core zombie tests{color}. There are 2 zombie test(s):
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testExportFileSystemState(TestExportSnapshot.java:288)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testExportFileSystemState(TestExportSnapshot.java:262)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testSnapshotWithRefsExportFileSystemState(TestExportSnapshot.java:256)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testSnapshotWithRefsExportFileSystemState(TestExportSnapshot.java:236)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testExportFileSystemState(TestExportSnapshot.java:288)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testExportFileSystemState(TestExportSnapshot.java:262)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testSnapshotWithRefsExportFileSystemState(TestExportSnapshot.java:256)
at
org.apache.hadoop.hbase.snapshot.TestExportSnapshot.testSnapshotWithRefsExportFileSystemState(TestExportSnapshot.java:240)
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/14825//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/14825//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/14825//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/14825//console
This message is automatically generated.
> ByteBufferUtils#compareTo small optimization
> --------------------------------------------
>
> Key: HBASE-14120
> URL: https://issues.apache.org/jira/browse/HBASE-14120
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver, Scanners
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
> Fix For: 2.0.0
>
> Attachments: HBASE-14120.patch
>
>
> We have it like
> {code}
> if (UnsafeAccess.isAvailable()) {
> long offset1Adj, offset2Adj;
> Object refObj1 = null, refObj2 = null;
> if (buf1.hasArray()) {
> offset1Adj = o1 + buf1.arrayOffset() +
> UnsafeAccess.BYTE_ARRAY_BASE_OFFSET;
> refObj1 = buf1.array();
> } else {
> offset1Adj = o1 + ((DirectBuffer) buf1).address();
> }
> if (buf2.hasArray()) {
> {code}
> Instead of hasArray() check we can have isDirect() check and reverse the if
> else block. Because we will be making BB backed cells when it is offheap BB.
> So when code reaches here for comparison, it will be direct BB.
> Doing JMH test proves it.
> {code}
> Benchmark Mode Cnt Score Error
> Units
> OnHeapVsOffHeapComparer.offheap thrpt 4 50516432.643 ± 651828.103
> ops/s
> OnHeapVsOffHeapComparer.offheapOld thrpt 4 37696698.093 ± 1121685.293
> ops/s
> {code}
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