You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hbase.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2018/01/01 13:44:00 UTC
[jira] [Commented] (HBASE-19358) Improve the stability of splitting
log when do fail over
[ https://issues.apache.org/jira/browse/HBASE-19358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307437#comment-16307437 ]
Hadoop QA commented on HBASE-19358:
-----------------------------------
| (/) *{color:green}+1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 13m 44s{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 2 new or modified test files. {color} |
|| || || || {color:brown} branch-1 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 58s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 39s{color} | {color:green} branch-1 passed with JDK v1.8.0_152 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 40s{color} | {color:green} branch-1 passed with JDK v1.7.0_161 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m 18s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 3m 56s{color} | {color:green} branch has no errors when building our shaded downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 13s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 30s{color} | {color:green} branch-1 passed with JDK v1.8.0_152 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 37s{color} | {color:green} branch-1 passed with JDK v1.7.0_161 {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 0s{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 v1.8.0_152 {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} compile {color} | {color:green} 0m 37s{color} | {color:green} the patch passed with JDK v1.7.0_161 {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} 1m 18s{color} | {color:green} hbase-server: The patch generated 0 new + 67 unchanged - 2 fixed = 67 total (was 69) {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} 2m 38s{color} | {color:green} patch has no errors when building our shaded downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green} 10m 16s{color} | {color:green} Patch does not cause any errors with Hadoop 2.4.1 2.5.2 2.6.5 2.7.4. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 33s{color} | {color:green} the patch passed with JDK v1.8.0_152 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 36s{color} | {color:green} the patch passed with JDK v1.7.0_161 {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 99m 24s{color} | {color:green} hbase-server in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 17s{color} | {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}142m 52s{color} | {color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:36a7029 |
| JIRA Issue | HBASE-19358 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12904121/HBASE-19358-branch-1-v3.patch |
| Optional Tests | asflicense javac javadoc unit findbugs shadedjars hadoopcheck hbaseanti checkstyle compile |
| uname | Linux f63509240861 3.13.0-133-generic #182-Ubuntu SMP Tue Sep 19 15:49:21 UTC 2017 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 | branch-1 / e866e83 |
| maven | version: Apache Maven 3.0.5 |
| Default Java | 1.7.0_161 |
| Multi-JDK versions | /usr/lib/jvm/java-8-openjdk-amd64:1.8.0_152 /usr/lib/jvm/java-7-openjdk-amd64:1.7.0_161 |
| findbugs | v3.0.0 |
| Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/10823/testReport/ |
| modules | C: hbase-server U: hbase-server |
| Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/10823/console |
| Powered by | Apache Yetus 0.6.0 http://yetus.apache.org |
This message was automatically generated.
> Improve the stability of splitting log when do fail over
> --------------------------------------------------------
>
> Key: HBASE-19358
> URL: https://issues.apache.org/jira/browse/HBASE-19358
> Project: HBase
> Issue Type: Improvement
> Components: MTTR
> Affects Versions: 0.98.24
> Reporter: Jingyun Tian
> Assignee: Jingyun Tian
> Attachments: HBASE-18619-branch-2.patch, HBASE-19358-branch-1-v2.patch, HBASE-19358-branch-1-v3.patch, HBASE-19358-branch-1.patch, HBASE-19358-v1.patch, HBASE-19358-v4.patch, HBASE-19358-v5.patch, HBASE-19358-v6.patch, HBASE-19358-v7.patch, HBASE-19358-v8.patch, HBASE-19358.patch
>
>
> The way we splitting log now is like the following figure:
> !https://issues.apache.org/jira/secure/attachment/12902997/split-logic-old.jpg!
> The problem is the OutputSink will write the recovered edits during splitting log, which means it will create one WriterAndPath for each region and retain it until the end. If the cluster is small and the number of regions per rs is large, it will create too many HDFS streams at the same time. Then it is prone to failure since each datanode need to handle too many streams.
> Thus I come up with a new way to split log.
> !https://issues.apache.org/jira/secure/attachment/12902998/split-logic-new.jpg!
> We try to cache all the recovered edits, but if it exceeds the MaxHeapUsage, we will pick the largest EntryBuffer and write it to a file (close the writer after finish). Then after we read all entries into memory, we will start a writeAndCloseThreadPool, it starts a certain number of threads to write all buffers to files. Thus it will not create HDFS streams more than *_hbase.regionserver.hlog.splitlog.writer.threads_* we set.
> The biggest benefit is we can control the number of streams we create during splitting log,
> it will not exceeds *_hbase.regionserver.wal.max.splitters * hbase.regionserver.hlog.splitlog.writer.threads_*, but before it is *_hbase.regionserver.wal.max.splitters * the number of region the hlog contains_*.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)