[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[
https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15025990#comment-15025990
]
Hadoop QA commented on YARN-4334:
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| (x) *{color:red}-1 overall{color}* |
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s
{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 5 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m
21s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 50s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 43s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
33s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m 2s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
46s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
48s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 54s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 29s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
52s {color} | {color:green} the patch passed {color} |
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{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 38s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 38s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 42s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 42s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 42s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 34s
{color} | {color:red} Patch generated 4 new checkstyle issues in
hadoop-yarn-project/hadoop-yarn (total was 609, now 610). {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 57s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
48s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s
{color} | {color:red} The patch has 2 line(s) that end in whitespace. Use git
apply --whitespace=fix. {color} |
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{color} | {color:green} The patch has no ill-formed XML file. {color} |
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25s {color} | {color:green} the patch passed {color} |
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{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 31s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 33s
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.8.0_66.
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 29s
{color} | {color:green} hadoop-yarn-common in the patch passed with JDK
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| {color:red}-1{color} | {color:red} unit {color} | {color:red} 62m 53s {color}
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed with JDK
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| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 32s
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.7.0_85.
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| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 22s
[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[
https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15023410#comment-15023410
]
Hadoop QA commented on YARN-4334:
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| (x) *{color:red}-1 overall{color}* |
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s
{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 5 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 9m
8s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 33s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 35s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
33s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 54s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
45s {color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 32s
{color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common in
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 55s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 17s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
51s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 39s
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 39s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 39s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 32s
{color} | {color:red} Patch generated 6 new checkstyle issues in
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 55s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
46s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
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{color} | {color:green} The patch has no ill-formed XML file. {color} |
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{color} | {color:red}
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
introduced 2 new FindBugs issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 51s
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 10s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 29s
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.8.0_66.
{color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 2m 18s
{color} | {color:green} hadoop-yarn-common in the patch passed with JDK
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| {color:red}-1{color} | {color:red} unit {color} | {color:red} 71m 16s {color}
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed with JDK
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| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 30s
{color} | {color:green} hadoop-yarn-api in the
[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[
https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15018637#comment-15018637
]
Hadoop QA commented on YARN-4334:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} docker {color} | {color:red} 5m 31s
{color} | {color:red} Docker failed to build yetus/hadoop:date2015-11-20.
{color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12773579/YARN-4334.2.patch |
| JIRA Issue | YARN-4334 |
| Powered by | Apache Yetus http://yetus.apache.org |
| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/9749/console |
This message was automatically generated.
> Ability to avoid ResourceManager recovery if state store is "too old"
> -
>
> Key: YARN-4334
> URL: https://issues.apache.org/jira/browse/YARN-4334
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
>Reporter: Jason Lowe
>Assignee: Chang Li
> Attachments: YARN-4334.2.patch, YARN-4334.patch,
> YARN-4334.wip.2.patch, YARN-4334.wip.3.patch, YARN-4334.wip.4.patch,
> YARN-4334.wip.patch
>
>
> There are times when a ResourceManager has been down long enough that
> ApplicationMasters and potentially external client-side monitoring mechanisms
> have given up completely. If the ResourceManager starts back up and tries to
> recover we can get into situations where the RM launches new application
> attempts for the AMs that gave up, but then the client _also_ launches
> another instance of the app because it assumed everything was dead.
> It would be nice if the RM could be optionally configured to avoid trying to
> recover if the state store was "too old." The RM would come up without any
> applications recovered, but we would avoid a double-submission situation.
--
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(v6.3.4#6332)
[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[
https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15019081#comment-15019081
]
Hadoop QA commented on YARN-4334:
-
| (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 7s
{color} | {color:blue} docker + precommit patch detected. {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 5 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
36s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 46s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 5s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
26s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 34s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
41s {color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 16s
{color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common in
trunk has 3 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 22s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 40s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
28s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 47s
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m 47s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 47s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 5s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 5s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 5s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 25s
{color} | {color:red} Patch generated 8 new checkstyle issues in
hadoop-yarn-project/hadoop-yarn (total was 609, now 614). {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 35s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
41s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s
{color} | {color:red} The patch has 2 line(s) that end in whitespace. Use git
apply --whitespace=fix. {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s
{color} | {color:red} The patch has 4 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m 0s
{color} | {color:green} The patch has no ill-formed XML file. {color} |
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{color} | {color:red}
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
introduced 2 new FindBugs issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 23s
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 3m 45s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 22s
{color} | {color:green} hadoop-yarn-api in the patch passed with JDK v1.8.0_66.
{color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 1m 50s {color}
| {color:red} hadoop-yarn-common in the patch failed with JDK v1.8.0_66.
{color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 60m 50s {color}
| {color:red}
[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[
https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15015025#comment-15015025
]
Hadoop QA commented on YARN-4334:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 9s
{color} | {color:blue} docker + precommit patch detected. {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} 9m
4s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 39s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 36s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
32s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 55s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
49s {color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 34s
{color} | {color:red} hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common in
trunk has 3 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 55s
{color} | {color:green} trunk passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 12s
{color} | {color:green} trunk passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
49s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 35s
{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 35s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 35s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m 36s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 32s
{color} | {color:red} Patch generated 24 new checkstyle issues in
hadoop-yarn-project/hadoop-yarn (total was 601, now 622). {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 58s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
47s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s
{color} | {color:red} The patch has 4 line(s) that end in whitespace. Use git
apply --whitespace=fix. {color} |
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{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m 39s
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{color} | {color:green} the patch passed with JDK v1.8.0_66 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m 14s
{color} | {color:green} the patch passed with JDK v1.7.0_85 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 0m 31s {color}
| {color:red} hadoop-yarn-api in the patch failed with JDK v1.8.0_66. {color} |
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{color} | {color:green} hadoop-yarn-common in the patch passed with JDK
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| {color:red}-1{color} | {color:red} unit {color} | {color:red} 68m 51s {color}
| {color:red} hadoop-yarn-server-resourcemanager in the patch failed with JDK
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[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[ https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14997296#comment-14997296 ] Jason Lowe commented on YARN-4334: -- Thanks for the prototype, Chang! Ideally when attempting to recover from an old state we should still remember the apps but recover them in a completed state (either killed or failed). It looks like the prototype will cause the RM to completely forget everything which isn't ideal. WIthout recovering the state but yet leaving it in the state store then we risk a situation like the following: # RM restarts late, recovers nothing # RM updates the store timestamp # RM restarts # RM tries to recover all the old state left from the first instance that wasn't cleaned up in the second Was there a reason to use a raw thread and sleeps for the update rather than a Timer? In either case it needs to be a daemon thread. The recovery code should check the version first before doing anything else with the state store. The conf settings give no hints in their name nor any documentation as to what units to use. Is it millseconds? minutes? hours? Why a default of 1? "RMLivenessKey" should be a static final constant to avoid the chance of typos. The code has no check for the key missing a value -- db.get will return NULL if the Nit: a setting of zero should be equivalent to a -1 setting. It makes no sense to configure it so the store is always expired. > Ability to avoid ResourceManager recovery if state store is "too old" > - > > Key: YARN-4334 > URL: https://issues.apache.org/jira/browse/YARN-4334 > Project: Hadoop YARN > Issue Type: Improvement > Components: resourcemanager >Reporter: Jason Lowe >Assignee: Chang Li > Attachments: YARN-4334.wip.patch > > > There are times when a ResourceManager has been down long enough that > ApplicationMasters and potentially external client-side monitoring mechanisms > have given up completely. If the ResourceManager starts back up and tries to > recover we can get into situations where the RM launches new application > attempts for the AMs that gave up, but then the client _also_ launches > another instance of the app because it assumed everything was dead. > It would be nice if the RM could be optionally configured to avoid trying to > recover if the state store was "too old." The RM would come up without any > applications recovered, but we would avoid a double-submission situation. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (YARN-4334) Ability to avoid ResourceManager recovery if state store is "too old"
[ https://issues.apache.org/jira/browse/YARN-4334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=14992405#comment-14992405 ] Jason Lowe commented on YARN-4334: -- This would probably involve some sort of "heartbeat" to the state store to keep track of an approximate last uptime of the ResourceManager. We would not want to update the state store very often, probably only on the order of a minute or so. One key use-case for this is Oozie. Oozie launchers have a known problem where when they restart they will re-launch applications. If the launcher AM gives up and the sub-job's AM gives up, then when the RM recovers and re-launches AM attempts for both jobs the launcher will re-submit the job. Then there will be two instances of the sub-job running which is undesirable. I suspect there are other job-launches-job situations besides Oozie where this would also be problematic. > Ability to avoid ResourceManager recovery if state store is "too old" > - > > Key: YARN-4334 > URL: https://issues.apache.org/jira/browse/YARN-4334 > Project: Hadoop YARN > Issue Type: Improvement > Components: resourcemanager >Reporter: Jason Lowe >Assignee: Chang Li > > There are times when a ResourceManager has been down long enough that > ApplicationMasters and potentially external client-side monitoring mechanisms > have given up completely. If the ResourceManager starts back up and tries to > recover we can get into situations where the RM launches new application > attempts for the AMs that gave up, but then the client _also_ launches > another instance of the app because it assumed everything was dead. > It would be nice if the RM could be optionally configured to avoid trying to > recover if the state store was "too old." The RM would come up without any > applications recovered, but we would avoid a double-submission situation. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
