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https://issues.apache.org/jira/browse/YARN-3017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14577861#comment-14577861
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Tsuyoshi Ozawa commented on YARN-3017:
--------------------------------------
[~zxu] [~rohithsharma] ApplicationMaster can use ContainerId.fromString() via
ConverterUtils.toContainerId() and ContainerId.toString() e.g. MRAppMaster
parses a string, containerIdStr, passed by an environment variable to know its
container id. Fortunately, I think this change is compatible one since both old
format and new format can be parsed with ContainerId.fromString().
[~mohdshahidkhan], could you update following tests to check that parsing with
old format works fine?
TestConverterUtils.testContainerId():
{code}
// Check to parse old format correctly.
assertEquals(
ConverterUtils.toContainerId("container_0_0000_00_000000"), id);
{code}
TestConverterUtils.testContainerIdWithEpoch():
{code}
// Check to parse old format correctly.
String id4 = "container_0_0000_000000_25645811";
ContainerId gen4 = ConverterUtils.toContainerId(cid);
assertEquals(gen4.toString(), id4.toString());
{code}
> ContainerID in ResourceManager Log Has Slightly Different Format From
> AppAttemptID
> ----------------------------------------------------------------------------------
>
> Key: YARN-3017
> URL: https://issues.apache.org/jira/browse/YARN-3017
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.8.0
> Reporter: MUFEED USMAN
> Priority: Minor
> Labels: PatchAvailable
> Attachments: YARN-3017.patch, YARN-3017_1.patch, YARN-3017_2.patch
>
>
> Not sure if this should be filed as a bug or not.
> In the ResourceManager log in the events surrounding the creation of a new
> application attempt,
> ...
> ...
> 2014-11-14 17:45:37,258 INFO
> org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher: Launching
> masterappattempt_1412150883650_0001_000002
> ...
> ...
> The application attempt has the ID format "_1412150883650_0001_000002".
> Whereas the associated ContainerID goes by "_1412150883650_0001_02_".
> ...
> ...
> 2014-11-14 17:45:37,260 INFO
> org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher: Setting
> up
> container Container: [ContainerId: container_1412150883650_0001_02_000001,
> NodeId: n67:55933, NodeHttpAddress: n67:8042, Resource: <memory:2048,
> vCores:1,
> disks:0.0>, Priority: 0, Token: Token { kind: ContainerToken, service:
> 10.10.70.67:55933 }, ] for AM appattempt_1412150883650_0001_000002
> ...
> ...
> Curious to know if this is kept like that for a reason. If not while using
> filtering tools to, say, grep events surrounding a specific attempt by the
> numeric ID part information may slip out during troubleshooting.
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