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https://issues.apache.org/jira/browse/HBASE-20036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16376619#comment-16376619
 ] 

Hadoop QA commented on HBASE-20036:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
17s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green}  0m  
0s{color} | {color:green} Patch does not have any anti-patterns. {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 1 new or modified test 
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
20s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
42s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 4s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green}  5m 
47s{color} | {color:green} branch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  2m 
10s{color} | {color:red} hbase-server in master has 24 extant Findbugs 
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
28s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  4m 
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
48s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  1m 
 5s{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} shadedjars {color} | {color:green}  4m 
47s{color} | {color:green} patch has no errors when building our shaded 
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 
19m 26s{color} | {color:green} Patch does not cause any errors with Hadoop 
2.6.5 2.7.4 or 3.0.0. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  2m 
16s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
29s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}106m 
28s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
20s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}149m 38s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:eee3b01 |
| JIRA Issue | HBASE-20036 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12911997/HBASE-20036.patch |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  shadedjars  
hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux cfb79ed910c6 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9 
14:43:09 UTC 2018 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 / a34f129aff |
| maven | version: Apache Maven 3.5.2 
(138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T07:58:13Z) |
| Default Java | 1.8.0_151 |
| findbugs | v3.1.0-RC3 |
| findbugs | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11675/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11675/testReport/ |
| Max. process+thread count | 4944 (vs. ulimit of 10000) |
| modules | C: hbase-server U: hbase-server |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/11675/console |
| Powered by | Apache Yetus 0.7.0   http://yetus.apache.org |


This message was automatically generated.



> TestAvoidCellReferencesIntoShippedBlocks timed out
> --------------------------------------------------
>
>                 Key: HBASE-20036
>                 URL: https://issues.apache.org/jira/browse/HBASE-20036
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: stack
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Major
>         Attachments: HBASE-20036.patch
>
>
> Looks like it is stuck can't flush; bad math?
> See the dashboard where it hung here: 
> https://builds.apache.org/job/HBASE-Flaky-Tests-branch2.0/2428/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestAvoidCellReferencesIntoShippedBlocks-output.txt
> ... the provocation could be this?
> 2018-02-21 04:18:44,973 DEBUG [Thread-178] bucket.BucketCache(629): This 
> block eefaa9a7b10e437b9fc2b55a67d63191_4356 is still referred by 1 readers. 
> Can not be freed now. Hence will mark this for evicting at a later point
> Exception in thread "Thread-178" java.lang.AssertionError: old blocks should 
> still be found  expected:<6> but was:<5>
>       at org.junit.Assert.fail(Assert.java:88)
>       at org.junit.Assert.failNotEquals(Assert.java:834)
>       at org.junit.Assert.assertEquals(Assert.java:645)
> ... Then we get stuck doing this:
> 2018-02-21 04:23:34,661 DEBUG [master/asf903:0.Chore.1] master.HMaster(1524): 
> Skipping normalization for table: testHBase16372InCompactionWritePath, as 
> it's either system table or doesn't have auto normalization turned on
> 2018-02-21 04:23:35,695 INFO  [regionserver/asf903:0.Chore.1] 
> regionserver.HRegionServer$PeriodicMemStoreFlusher(1752): 
> MemstoreFlusherChore requesting flush of hbase:meta,,1.1588230740 because 
> info has an old edit so flush to free WALs after random delay 286820ms
> 2018-02-21 04:23:36,009 DEBUG [ReadOnlyZKClient-localhost:61855@0x227ea3ed] 
> zookeeper.ReadOnlyZKClient(316): 0x227ea3ed to localhost:61855 inactive for 
> 60000ms; closing (Will reconnect when new requests)
> It also failed a recent nightly for same reason:
> https://builds.apache.org/job/HBase%20Nightly/job/branch-2/355/
> Any chance you'd take a look [~ram_krish]? You best at this stuff?



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