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https://issues.apache.org/jira/browse/HBASE-16643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15510273#comment-15510273
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Hadoop QA commented on HBASE-16643:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 22m 23s
{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s {color} | {color:green} The patch appears to include 7 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 11m
11s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 40s
{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
11s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
27s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
51s {color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 55s
{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
58s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 42s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 42s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
45s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
15s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s {color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}
31m 29s {color} | {color:green} Patch does not cause any errors with Hadoop
2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.1 2.6.2 2.6.3 2.7.1. {color} |
| {color:green}+1{color} | {color:green} hbaseprotoc {color} | {color:green} 0m
16s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 2s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 34s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 115m 15s
{color} | {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
33s {color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 191m 56s {color}
| {color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.replication.TestMasterReplication |
| Timed out junit tests |
org.apache.hadoop.hbase.namespace.TestNamespaceAuditor |
| | org.apache.hadoop.hbase.wal.TestWALSplitCompressed |
| |
org.apache.hadoop.hbase.security.visibility.TestVisibilityLabelsWithDeletes |
| | org.apache.hadoop.hbase.wal.TestBoundedRegionGroupingStrategy |
| | org.apache.hadoop.hbase.wal.TestWALSplit |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.11.2 Server=1.11.2 Image:yetus/hbase:7bda515 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12829558/HBASE-16643_2.patch |
| JIRA Issue | HBASE-16643 |
| Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck
hbaseanti checkstyle compile |
| uname | Linux 9f3c74c8d7ea 3.13.0-92-generic #139-Ubuntu SMP Tue Jun 28
20:42:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
|
| git revision | master / c67983e |
| Default Java | 1.8.0_101 |
| findbugs | v3.0.0 |
| unit |
https://builds.apache.org/job/PreCommit-HBASE-Build/3630/artifact/patchprocess/patch-unit-hbase-server.txt
|
| unit test logs |
https://builds.apache.org/job/PreCommit-HBASE-Build/3630/artifact/patchprocess/patch-unit-hbase-server.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HBASE-Build/3630/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output |
https://builds.apache.org/job/PreCommit-HBASE-Build/3630/console |
| Powered by | Apache Yetus 0.3.0 http://yetus.apache.org |
This message was automatically generated.
> Reverse scanner heap creation may not allow MSLAB closure due to improper ref
> counting of segments
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-16643
> URL: https://issues.apache.org/jira/browse/HBASE-16643
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-16643.patch, HBASE-16643_1.patch,
> HBASE-16643_2.patch
>
>
> In the reverse scanner case,
> While doing 'initBackwardHeapIfNeeded' in MemstoreScanner for setting the
> backward heap, we do a
> {code}
> if ((backwardHeap == null) && (forwardHeap != null)) {
> forwardHeap.close();
> forwardHeap = null;
> // before building the heap seek for the relevant key on the scanners,
> // for the heap to be built from the scanners correctly
> for (KeyValueScanner scan : scanners) {
> if (toLast) {
> res |= scan.seekToLastRow();
> } else {
> res |= scan.backwardSeek(cell);
> }
> }
> {code}
> forwardHeap.close(). This would internally decrement the MSLAB ref counter
> for the current active segment and snapshot segment.
> When the scan is actually closed again we do close() and that will again
> decrement the count. Here chances are there that the count would go negative
> and hence the actual MSLAB closure that checks for refCount==0 will fail.
> Apart from this, when the refCount becomes 0 after the firstClose if any
> other thread requests to close the segment, then we will end up in corrupted
> segment because the segment could be put back to the MSLAB pool.
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