[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16984802#comment-16984802
]
Adam Antal commented on YARN-9923:
--
Resolved last test failure and checkstyle. Will not make final class out of
{{NodeHealthScriptRunner}}, because it is mocked in
{{TestNodeHealthCheckerService#testNodeHealthService()}}.
Please review.
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch, YARN-9923.005.patch,
> YARN-9923.006.patch, YARN-9923.007.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16984516#comment-16984516
]
Hadoop QA commented on YARN-9923:
-
| (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
39s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 26 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
12s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m
34s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m
17s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
43s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 4m
28s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
21m 3s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 7m
1s{color} | {color:green} trunk passed {color} |
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|| || || || {color:brown} Patch Compile Tests {color} ||
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| {color:green}+1{color} | {color:green} compile {color} | {color:green} 20m
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| {color:green}+1{color} | {color:green} javac {color} | {color:green} 20m
6s{color} | {color:green} root generated 0 new + 1868 unchanged - 2 fixed =
1868 total (was 1870) {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
3m 9s{color} | {color:orange} root: The patch generated 2 new + 596 unchanged
- 52 fixed = 598 total (was 648) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 4m
57s{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} xml {color} | {color:green} 0m
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 40s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 6m
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18s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m
29s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m
53s{color} | {color:green} hadoop-yarn-api in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m
50s{color} | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 21m 45s{color}
| {color:red} hadoop-yarn-server-nodemanager in the patch failed. {color} |
| {color:green}+1{color} |
[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16984394#comment-16984394
]
Adam Antal commented on YARN-9923:
--
The {{NodeHealthChecker}} instance can be null - thus the NPEs. Fixed in
patchset v7 along with the checkstyle issues.
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch, YARN-9923.005.patch,
> YARN-9923.006.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16983638#comment-16983638
]
Hadoop QA commented on YARN-9923:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
40s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 26 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
7s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 18m
5s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m
11s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
46s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 4m
53s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
21m 30s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 6m
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48s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
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26s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m
35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 14m
35s{color} | {color:green} root generated 0 new + 1868 unchanged - 2 fixed =
1868 total (was 1870) {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 35s{color} | {color:orange} root: The patch generated 7 new + 596 unchanged
- 52 fixed = 603 total (was 648) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 5m
2s{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} xml {color} | {color:green} 0m
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
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11m 54s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 6m
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14s{color} | {color:green} hadoop-common in the patch passed. {color} |
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59s{color} | {color:green} hadoop-yarn-api in the patch passed. {color} |
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| {color:green}+1{color} |
[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16983403#comment-16983403
]
Adam Antal commented on YARN-9923:
--
Uploaded patchset v6.
- I was thinking about putting the docker health checker script itself to the
test resources (as the main part of this issue is to support running up to 4
scripts), but I think the behaviour of checking a script is well tested, so
adding this to the tests does not make any plus.
- The responsibility of setting the health bad is an exception has occurred was
refactored to a separate class. I think in this way . Added 3 levels of tests
to that: UT to {{ExceptionReporter}}, {{NodeHealthCheckerService}} and as an
integration test, added a case in {{NodeManager}}-level ({{NodeStatusUpdater}}).
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch, YARN-9923.005.patch,
> YARN-9923.006.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
--
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16982712#comment-16982712
]
Hadoop QA commented on YARN-9923:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
42s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 26 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
27s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 21m
12s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 17m
18s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 4m
34s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
13m 33s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 6m
10s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 4m
12s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
21s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 15m
33s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 15m
33s{color} | {color:green} root generated 0 new + 1868 unchanged - 2 fixed =
1868 total (was 1870) {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 43s{color} | {color:orange} root: The patch generated 13 new + 596 unchanged
- 52 fixed = 609 total (was 648) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 4m
24s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} pylint {color} | {color:orange} 0m
1s{color} | {color:orange} The patch generated 3 new + 0 unchanged - 0 fixed =
3 total (was 0) {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git
apply --whitespace=fix <>. Refer https://git-scm.com/docs/git-apply
{color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 52s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
18s{color} | {color:red}
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
generated 1 new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
33s{color} | {color:red}
hadoop-yarn-project_hadoop-yarn_hadoop-yarn-server_hadoop-yarn-server-nodemanager
generated 2 new + 0 unchanged - 0 fixed = 2 total (was 0) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m
12s{color} | {color:green} hadoop-common in the
[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16982573#comment-16982573
]
Adam Antal commented on YARN-9923:
--
Uploaded patchset v5:
- Removed the java-based Docker health checker implementation
- Added the supported for checking up to 4 scripts regularly.
- Updated markdown file with the new feature.
TODO:
- Add test containing this python-based health check
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch, YARN-9923.005.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16975492#comment-16975492
]
Eric Yang commented on YARN-9923:
-
{quote}Just to be sure, we can enforce the code to have no more than like 4
threads (that means running at max 4 individual scripts) and no more, if you
don't reject this solution.{quote}
4 threads sounds like a reasonable way to reduce resource usage problem. User
also has flexibility to implement one script only. Hence, I don't have
objection if you want to support multi-script approach.
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16975252#comment-16975252
]
Adam Antal commented on YARN-9923:
--
Thanks for your response [~eyang].
Let's stick to the script approach then. I think we concluded that it's better
to do that in a script form then in Java code, also the script args are fine to
tune the program, so I can accept that.
bq. Personally, I would prefer to avoid multi-script approach. [...]
I'd still argue to the multi-script approach though. The too many running
threads can actually be a problem, but we're not talking about 20 script here
only 2-3 ones which has negligible overhead. Also I think this solution can
give administrators more flexibility: using multiple scripts (that can still
source some other ones) can allow them to assign a script path to a certain
team for instance - thus can effectively decouple the responsibility of set of
scripts and increase maintainability per se. Nonetheless the script args
approach would be much more complicated when a great amount of scripts and
functions are in a single bash script depending on a handful of input arguments.
bq. Apache common logging is one of real lesson that I learn from Hadoop that
having too many run away threads making logging expensive and hard to debug
where is the failure
Just to be sure, we can enforce the code to have no more than like 4 threads
(that means running at max 4 individual scripts) and no more, if you don't
reject this solution.
I won't be upset if you believe this proposal would cause more harm than what
it helps, but I still have these points concerning supportability and
flexibility for users.
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16974676#comment-16974676
]
Eric Yang commented on YARN-9923:
-
[~adam.antal]
{quote}do you mean that there was no public or hadoop-public API for
health-checking on purpose?{quote}
I don't know if It was intentionally omitted, but I admit I didn't spent much
time thinking about this API. Pluggable health check interface is good. There
is no doubt about health check interface is a good feature for other people to
implement their own health check implementation. I only disagree on using Java
to check Docker is a good pattern due to missing permissions to access
privileged operations.
{quote}One improvement I can think of is to enable to set these things on a per
script basis (allowing multiple scripts to run paralel).{quote}
Personally, I would prefer to avoid multi-script approach. Apache common
logging is one of real lesson that I learn from Hadoop that having too many run
away threads making logging expensive and hard to debug where is the failure.
We have moved to slf4j to reduce some of that bloat. A single script runs
under 30 seconds with 15 minutes interval, is more preferable by most system
administrators. We don't want to burn too many cpu cycles by healthcheck
scripts. The script itself can be organized into functions to keep things
tidy, and potentially move some of the functions to Hadoop libexec scripts to
keep the parts hackable and tidy.
{quote}For the sake of completeness a use case: In a cluster where Dockerized
nodes with GPU are running TF jobs and nodes may depend on the availability of
the Docker daemon as well as the GPU device, as of now we can only be sure that
the node is working fine, if a container allocation is started on that node.
{quote}
If the config toggle via environment variable can work, node manager can make
decision of which part of the health check functions to run base on node
manager own config. This can prevent container to be schedule on unhealthy
node base on above use case. I think the outcome could be a better overall
solution. Wouldn't you agree?
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
--
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16974423#comment-16974423
]
Adam Antal commented on YARN-9923:
--
Hi [~eyang],
Thanks for sharing these concerns. I can see you point you come up, let me
react to those.
{quote}it would be better to be written as a health checker script hence,
proper privileges can be obtained to check if the process is alive.
{quote}
Yeah, we can move the logic to a script.
{quote}Worries about future maintenance of DockerHealthCheckerService. [...]
{quote}
So do you mean that there was no public or hadoop-public API for
health-checking on purpose? That was the missing piece that {{HealthChecker}}
interface was trying to fill, but I can see the reason why from this
perspective.
I consider using scripts a bit less flexible, that was my main reason why I
started to work on this. Suppose you have a complex health checker logic, and
you have multiple scripts implementing the parts. Then you must either have one
giant script that contains all of it and could not be supported on the long
run, or have one that imports all the others but still does not give you the
right flexibility.
One improvement I can think of is to enable to set these things on a per script
basis (allowing multiple scripts to run paralel). Similarly like log
aggregation controller, we could have a configs like this:
{noformat}
yarn.health-checker.scripts=script1,script2,script3
yarn.health-checker-script.script1.path=/path/to/script/one
yarn.health-checker-script.script1.opts=...
yarn.health-checker-script.script1.timeout-ms=1000
yarn.health-checker-script.script2.path=/path/to/script/two
...
yarn.health-checker-script.script3.path=/path/to/script/three
{noformat}
{quote}Future code may have too many timer threads that runs at different
intervals and use more system resources than necessary.
{quote}
If you believe the above approach can make sense, then we can limit this with a
config - a max-timer-thread option to limit these threads (warning if you have
given too much of these health checker scripts).
bq. Could we change DockerHealthCheckerService into node manager healthcheck
script? The toggle for enable docker check can be based on environment
variables that pass down to node manager healthcheck script. This approach will
set good example of how to pass config toggle to healthcheck script, while
maintaining backward compatibility to user's healthcheck script.
I like this idea, will do that in the following patch.
What do you think about this? Please share me your thoughts on this.
For the sake of completeness a use case: In a cluster where Dockerized nodes
with GPU are running TF jobs and nodes may depend on the availability of the
Docker daemon as well as the GPU device, as of now we can only be sure that the
node is working fine, if a container allocation is started on that node.
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
[
https://issues.apache.org/jira/browse/YARN-9923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16974392#comment-16974392
]
Eric Yang commented on YARN-9923:
-
[~adam.antal], thank you for the patch. There are a number of people sharing
the same concerns about the current implementation. The main issues are:
# it would be better to be written as a health checker script hence, proper
privileges can be obtained to check if the process is alive.
# Worries about future maintenance of DockerHealthCheckerService. It sets
precedence of examples that writing complex system specific logic in Java,
which would be easier to implement in scripts.
# Future code may have too many timer threads that runs at different intervals
and use more system resources than necessary.
Could we change DockerHealthCheckerService into node manager healthcheck
script? The toggle for enable docker check can be based on environment
variables that pass down to node manager healthcheck script. This approach
will set good example of how to pass config toggle to healthcheck script, while
maintaining backward compatibility to user's healthcheck script.
Let us know your thoughts. Thanks
> Introduce HealthReporter interface and implement running Docker daemon checker
> --
>
> Key: YARN-9923
> URL: https://issues.apache.org/jira/browse/YARN-9923
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: nodemanager, yarn
>Affects Versions: 3.2.1
>Reporter: Adam Antal
>Assignee: Adam Antal
>Priority: Major
> Attachments: YARN-9923.001.patch, YARN-9923.002.patch,
> YARN-9923.003.patch, YARN-9923.004.patch
>
>
> Currently if a NodeManager is enabled to allocate Docker containers, but the
> specified binary (docker.binary in the container-executor.cfg) is missing the
> container allocation fails with the following error message:
> {noformat}
> Container launch fails
> Exit code: 29
> Exception message: Launch container failed
> Shell error output: sh: : No
> such file or directory
> Could not inspect docker network to get type /usr/bin/docker network inspect
> host --format='{{.Driver}}'.
> Error constructing docker command, docker error code=-1, error
> message='Unknown error'
> {noformat}
> I suggest to add a property say "yarn.nodemanager.runtime.linux.docker.check"
> to have the following options:
> - STARTUP: setting this option the NodeManager would not start if Docker
> binaries are missing or the Docker daemon is not running (the exception is
> considered FATAL during startup)
> - RUNTIME: would give a more detailed/user-friendly exception in
> NodeManager's side (NM logs) if Docker binaries are missing or the daemon is
> not working. This would also prevent further Docker container allocation as
> long as the binaries do not exist and the docker daemon is not running.
> - NONE (default): preserving the current behaviour, throwing exception during
> container allocation, carrying on using the default retry procedure.
>
> A new interface called {{HealthChecker}} is introduced which is used in the
> {{NodeHealthCheckerService}}. Currently existing implementations like
> {{LocalDirsHandlerService}} are modified to implement this giving a clear
> abstraction to the node's health. The {{DockerHealthChecker}} implements this
> new interface.
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[jira] [Commented] (YARN-9923) Introduce HealthReporter interface and implement running Docker daemon checker
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]
Hadoop QA commented on YARN-9923:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
34s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {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 26 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
3s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 19m
19s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 16m
26s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
43s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 8m
8s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
24m 5s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 5m
25s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 5m
34s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
21s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
12s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 15m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 15m
39s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 47s{color} | {color:orange} root: The patch generated 1 new + 603 unchanged
- 44 fixed = 604 total (was 647) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 9m
29s{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} xml {color} | {color:green} 0m
3s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 42s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Skipped patched modules with no Java source:
hadoop-yarn-project/hadoop-yarn
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 7m
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 5m
53s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 9m 58s{color}
| {color:red} hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 85m 53s{color}
| {color:red} hadoop-yarn in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m
55s{color} | {color:green} hadoop-yarn-api in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 3m
53s{color} | {color:green} hadoop-yarn-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit
