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Posted to issues@hbase.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2017/01/23 12:24:26 UTC

[jira] [Commented] (HBASE-17510) DefaultMemStore gets the wrong heap size after rollback

    [ https://issues.apache.org/jira/browse/HBASE-17510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15834371#comment-15834371 ] 

Hadoop QA commented on HBASE-17510:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 18m 58s {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 1 new or modified test files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 52s {color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} | {color:green} branch-1 passed with JDK v1.8.0_121 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 38s {color} | {color:green} branch-1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 57s {color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s {color} | {color:green} branch-1 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m 7s {color} | {color:red} hbase-server in branch-1 has 2 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s {color} | {color:green} branch-1 passed with JDK v1.8.0_121 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 35s {color} | {color:green} branch-1 passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 45s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 36s {color} | {color:green} the patch passed with JDK v1.8.0_121 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 36s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 37s {color} | {color:green} the patch passed with JDK v1.7.0_80 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 37s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 57s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 17s {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} 16m 5s {color} | {color:green} The 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 19s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 28s {color} | {color:green} the patch passed with JDK v1.8.0_121 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 37s {color} | {color:green} the patch passed with JDK v1.7.0_80 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 124m 30s {color} | {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 19s {color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 174m 48s {color} | {color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.master.TestMasterBalanceThrottling |
|   | hadoop.hbase.client.TestMetaWithReplicas |
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|| Subsystem || Report/Notes ||
| Docker | Client=1.12.6 Server=1.12.6 Image:yetus/hbase:e01ee2f |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12848864/HBASE-17510.branch-1.v0.patch |
| JIRA Issue | HBASE-17510 |
| Optional Tests |  asflicense  javac  javadoc  unit  findbugs  hadoopcheck  hbaseanti  checkstyle  compile  |
| uname | Linux cd1e33d6d07e 3.13.0-100-generic #147-Ubuntu SMP Tue Oct 18 16:48:51 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/hbase.sh |
| git revision | branch-1 / 6e0f3f5 |
| Default Java | 1.7.0_80 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_121 /usr/lib/jvm/java-7-oracle:1.7.0_80 |
| findbugs | v3.0.0 |
| findbugs | https://builds.apache.org/job/PreCommit-HBASE-Build/5410/artifact/patchprocess/branch-findbugs-hbase-server-warnings.html |
| unit | https://builds.apache.org/job/PreCommit-HBASE-Build/5410/artifact/patchprocess/patch-unit-hbase-server.txt |
| unit test logs |  https://builds.apache.org/job/PreCommit-HBASE-Build/5410/artifact/patchprocess/patch-unit-hbase-server.txt |
|  Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/5410/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/5410/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> DefaultMemStore gets the wrong heap size after rollback
> -------------------------------------------------------
>
>                 Key: HBASE-17510
>                 URL: https://issues.apache.org/jira/browse/HBASE-17510
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ChiaPing Tsai
>            Assignee: ChiaPing Tsai
>             Fix For: 1.4.0
>
>         Attachments: HBASE-17510.branch-1.v0.patch
>
>
> We should calculate the size of “found” rather than “cell” because the offset value may cause the difference heap size between “cell” and “found”.
> {code:title=DefaultMemStore.java|borderStyle=solid}
>   @Override
>   public void rollback(Cell cell) {
>     // If the key is in the memstore, delete it. Update this.size.
>     found = this.cellSet.get(cell);
>     if (found != null && found.getSequenceId() == cell.getSequenceId()) {
>       removeFromCellSet(cell);
>       long s = heapSizeChange(cell, true);
>       this.size.addAndGet(-s);
>     }
>   }
> {code}
> {code:title=KeyValue.java|borderStyle=solid}
>   @Override
>   public long heapSize() {
>     return ClassSize.align(sum) +
>         (offset == 0
>           ? ClassSize.sizeOf(bytes, length) // count both length and object overhead
>           : length);                        // only count the number of bytes
>   }
> {code}
> The wrong heap size of store will block the HRegion#doClose because the HRegion#memstoreSize will always be bigger than zero even if we flush the store.
> {code:title=HRegion.java|borderStyle=solid}
>         while (this.memstoreSize.get() > 0) {
>           try {
>             if (flushCount++ > 0) {
>               int actualFlushes = flushCount - 1;
>               if (actualFlushes > 5) {
>                 // If we tried 5 times and are unable to clear memory, abort
>                 // so we do not lose data
>                 throw new DroppedSnapshotException("Failed clearing memory after " +
>                   actualFlushes + " attempts on region: " +
>                     Bytes.toStringBinary(getRegionInfo().getRegionName()));
>               }
>               LOG.info("Running extra flush, " + actualFlushes +
>                 " (carrying snapshot?) " + this);
>             }
>             internalFlushcache(status);
>           } catch (IOException ioe) {
>             status.setStatus("Failed flush " + this + ", putting online again");
>             synchronized (writestate) {
>               writestate.writesEnabled = true;
>             }
>             // Have to throw to upper layers.  I can't abort server from here.
>             throw ioe;
>           }
>         }
> {code}



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