[jira] [Commented] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17302882#comment-17302882 ] Hadoop QA commented on MAPREDUCE-7322: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Logfile || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 10m 55s{color} | {color:blue}{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {color} || || | {color:green}+1{color} | {color:green} dupname {color} | {color:green} 0m 1s{color} | {color:green}{color} | {color:green} No case conflicting files found. {color} | | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s{color} | {color:green}{color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} {color} | {color:green} 0m 0s{color} | {color:green}test4tests{color} | {color:green} The patch appears to include 9 new or modified test files. {color} | || || || || {color:brown} branch-3.2 Compile Tests {color} || || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 4m 2s{color} | {color:blue}{color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 23m 27s{color} | {color:green}{color} | {color:green} branch-3.2 passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 39s{color} | {color:green}{color} | {color:green} branch-3.2 passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m 59s{color} | {color:green}{color} | {color:green} branch-3.2 passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 3m 46s{color} | {color:green}{color} | {color:green} branch-3.2 passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 19m 28s{color} | {color:green}{color} | {color:green} branch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 7s{color} | {color:green}{color} | {color:green} branch-3.2 passed {color} | | {color:blue}0{color} | {color:blue} spotbugs {color} | {color:blue} 28m 22s{color} | {color:blue}{color} | {color:blue} Both FindBugs and SpotBugs are enabled, using SpotBugs. {color} | | {color:red}-1{color} | {color:red} spotbugs {color} | {color:red} 2m 21s{color} | {color:red}https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/68/artifact/out/branch-spotbugs-hadoop-common-project_hadoop-common-warnings.html{color} | {color:red} hadoop-common-project/hadoop-common in branch-3.2 has 2 extant spotbugs warnings. {color} | | {color:red}-1{color} | {color:red} spotbugs {color} | {color:red} 1m 30s{color} | {color:red}https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/68/artifact/out/branch-spotbugs-hadoop-mapreduce-project_hadoop-mapreduce-client_hadoop-mapreduce-client-core-warnings.html{color} | {color:red} hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core in branch-3.2 has 2 extant spotbugs warnings. {color} | || || || || {color:brown} Patch Compile Tests {color} || || | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 24s{color} | {color:blue}{color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 36s{color} | {color:green}{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m 23s{color} | {color:green}{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 16m 23s{color} | {color:green}{color} | {color:green} the patch passed {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 2m 48s{color} | {color:orange}https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/68/artifact/out/diff-checkstyle-root.txt{color} | {color:orange} root: The patch generated 1 new + 1175 unchanged - 18 fixed = 1176 total (was 1193) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 3m 35s{color} | {color:green}{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green}{color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 11m 55s{color} | {color:green}{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} | | {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m 40s{color} |
[jira] [Commented] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17302867#comment-17302867 ] Ahmed Hussein commented on MAPREDUCE-7322: -- Thanks [~Jim_Brennan] for the reviews and committing the patches. I ran the related tests locally and they were successful. The Yetus failure has been raised in YARN-10501. Hopefully, it will be fixed soon. > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.1.5, 3.3.1, 2.10.2, 3.2.3 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch, MAPREDUCE-7322.branch-2.10.009.patch, > MAPREDUCE-7322.branch-3.2.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Updated] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jim Brennan updated MAPREDUCE-7322: --- Fix Version/s: 3.2.3 2.10.2 3.1.5 Resolution: Fixed Status: Resolved (was: Patch Available) Thanks [~ahussein]! I have committed this to trunk - branch-2.10. > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.1.5, 3.3.1, 2.10.2, 3.2.3 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch, MAPREDUCE-7322.branch-2.10.009.patch, > MAPREDUCE-7322.branch-3.2.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Work logged] (MAPREDUCE-7329) HadoopPipes task may fail when linux kernel version upgrade from 3.x to 4.x
[ https://issues.apache.org/jira/browse/MAPREDUCE-7329?focusedWorklogId=567139=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-567139 ] ASF GitHub Bot logged work on MAPREDUCE-7329: - Author: ASF GitHub Bot Created on: 16/Mar/21 17:44 Start Date: 16/Mar/21 17:44 Worklog Time Spent: 10m Work Description: lichaojacobs commented on pull request #2775: URL: https://github.com/apache/hadoop/pull/2775#issuecomment-800473749 @aajisaka Could you please help review the patch? thanks. This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking --- Worklog Id: (was: 567139) Time Spent: 1h 10m (was: 1h) > HadoopPipes task may fail when linux kernel version upgrade from 3.x to 4.x > --- > > Key: MAPREDUCE-7329 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7329 > Project: Hadoop Map/Reduce > Issue Type: Bug >Affects Versions: 2.6.0 >Reporter: chaoli >Priority: Major > Labels: patch, pull-request-available > Fix For: 2.6.0, 3.0.0 > > Attachments: > 0001-MAPREDUCE-7329-HadoopPipes-task-may-fail-when-linux-.patch, > image-2021-03-15-14-29-49-475.png, image-2021-03-15-14-37-32-184.png > > Time Spent: 1h 10m > Remaining Estimate: 0h > > {color:#FF}*Hadoop Pipes Ping implement has a bug*{color}. Recently, we > upgrade linux kernel version from 3.x to 4.x. And we find hadoop pipe task > exit with connect timeout which is implemented by PingThread in > HadoopPipes.cc. > !image-2021-03-15-14-37-32-184.png! > After a deep research, we finally find that current ping server won't accept > ping client created socket, which may cause critical problem: > * it will cause tcp accept queue full(default 50) > * when client close socket, server socket won't call close method, which > will leave too many CLOSE_WAIT socket fd existed(default 2h), and accept > queue never cleared. > * Even worse, in 4.x linux kernel version, it will cause tcp drop packet > directly which makes ping client connect time out. While In 3.x linux kernel > version, when accept queue full, client can also make half connection till > sync queue full (default 2048), so from client side, ping will aslo work till > sync queue full. And after 3 hours, task will also exit with connect timeout > exception. > To fix this bug, we introduced a PingSocketCleaner thread, which will > continuously accept ping socket connect from ping client. When socket close > from client, cleaner thread will detecte closed inputStream reading, then > finally close socket from sever side. > Refrenced by linux kernel patch: > [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5ea8ea2cb7] > -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Commented] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17302735#comment-17302735 ] Hadoop QA commented on MAPREDUCE-7322: -- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Logfile || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 11m 42s{color} | {color:blue}{color} | {color:blue} Docker mode activated. {color} | | {color:red}-1{color} | {color:red} yetus {color} | {color:red} 0m 15s{color} | {color:red}{color} | {color:red} Unprocessed flag(s): --spotbugs-strict-precheck {color} | \\ \\ || Subsystem || Report/Notes || | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/69/artifact/out/Dockerfile | | JIRA Issue | MAPREDUCE-7322 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/13022403/MAPREDUCE-7322.branch-2.10.009.patch | | Console output | https://ci-hadoop.apache.org/job/PreCommit-MAPREDUCE-Build/69/console | | versions | git=2.7.4 | | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org | This message was automatically generated. > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.3.1 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch, MAPREDUCE-7322.branch-2.10.009.patch, > MAPREDUCE-7322.branch-3.2.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Updated] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ahmed Hussein updated MAPREDUCE-7322: - Attachment: MAPREDUCE-7322.branch-2.10.009.patch > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.3.1 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch, MAPREDUCE-7322.branch-2.10.009.patch, > MAPREDUCE-7322.branch-3.2.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Updated] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ahmed Hussein updated MAPREDUCE-7322: - Attachment: MAPREDUCE-7322.branch-3.2.009.patch > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.3.1 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch, MAPREDUCE-7322.branch-3.2.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Commented] (MAPREDUCE-7322) revisiting TestMRIntermediateDataEncryption
[ https://issues.apache.org/jira/browse/MAPREDUCE-7322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17302591#comment-17302591 ] Jim Brennan commented on MAPREDUCE-7322: [~ahussein], -MAPREDUCE-7320- has already been backported all the way to branch-2.10. Let me know if you want to provide additional patches for this one. > revisiting TestMRIntermediateDataEncryption > > > Key: MAPREDUCE-7322 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7322 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: job submission, security, test >Reporter: Ahmed Hussein >Assignee: Ahmed Hussein >Priority: Major > Labels: patch-available > Fix For: 3.4.0, 3.3.1 > > Attachments: MAPREDUCE-7322.001.patch, MAPREDUCE-7322.002.patch, > MAPREDUCE-7322.003.patch, MAPREDUCE-7322.004.patch, MAPREDUCE-7322.005.patch, > MAPREDUCE-7322.006.patch, MAPREDUCE-7322.007.patch, MAPREDUCE-7322.008.patch, > MAPREDUCE-7322.009.patch > > > I was reviewing {{TestMRIntermediateDataEncryption}}. The unit test has > actually little to do with encryption. > I have the following conclusion: > * Enabling/Disabling {{MRJobConfig.MR_ENCRYPTED_INTERMEDIATE_DATA}} does not > change the behavior of the unit test. > * There are no spill files generated by either mappers/reducers > * Wrapping I/O streams with Crypto never happens during the execution of the > unit test. > Unless I misunderstand the purpose of that unit test, I suggest that it gets > re-implemented so that it validates encryption in spilled intermediate data. -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org
[jira] [Work logged] (MAPREDUCE-7329) HadoopPipes task may fail when linux kernel version upgrade from 3.x to 4.x
[ https://issues.apache.org/jira/browse/MAPREDUCE-7329?focusedWorklogId=566734=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-566734 ] ASF GitHub Bot logged work on MAPREDUCE-7329: - Author: ASF GitHub Bot Created on: 16/Mar/21 06:21 Start Date: 16/Mar/21 06:21 Worklog Time Spent: 10m Work Description: lichaojacobs commented on pull request #2775: URL: https://github.com/apache/hadoop/pull/2775#issuecomment-799987235 > I did not touch this pipe class or package. I can take a look later this week, but @aajisaka and @wangdatan will have more context. Thanks, ok, thanks any way ! This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking --- Worklog Id: (was: 566734) Time Spent: 1h (was: 50m) > HadoopPipes task may fail when linux kernel version upgrade from 3.x to 4.x > --- > > Key: MAPREDUCE-7329 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-7329 > Project: Hadoop Map/Reduce > Issue Type: Bug >Affects Versions: 2.6.0 >Reporter: chaoli >Priority: Major > Labels: patch, pull-request-available > Fix For: 2.6.0, 3.0.0 > > Attachments: > 0001-MAPREDUCE-7329-HadoopPipes-task-may-fail-when-linux-.patch, > image-2021-03-15-14-29-49-475.png, image-2021-03-15-14-37-32-184.png > > Time Spent: 1h > Remaining Estimate: 0h > > {color:#FF}*Hadoop Pipes Ping implement has a bug*{color}. Recently, we > upgrade linux kernel version from 3.x to 4.x. And we find hadoop pipe task > exit with connect timeout which is implemented by PingThread in > HadoopPipes.cc. > !image-2021-03-15-14-37-32-184.png! > After a deep research, we finally find that current ping server won't accept > ping client created socket, which may cause critical problem: > * it will cause tcp accept queue full(default 50) > * when client close socket, server socket won't call close method, which > will leave too many CLOSE_WAIT socket fd existed(default 2h), and accept > queue never cleared. > * Even worse, in 4.x linux kernel version, it will cause tcp drop packet > directly which makes ping client connect time out. While In 3.x linux kernel > version, when accept queue full, client can also make half connection till > sync queue full (default 2048), so from client side, ping will aslo work till > sync queue full. And after 3 hours, task will also exit with connect timeout > exception. > To fix this bug, we introduced a PingSocketCleaner thread, which will > continuously accept ping socket connect from ping client. When socket close > from client, cleaner thread will detecte closed inputStream reading, then > finally close socket from sever side. > Refrenced by linux kernel patch: > [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5ea8ea2cb7] > -- This message was sent by Atlassian Jira (v8.3.4#803005) - To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org