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https://issues.apache.org/jira/browse/SLIDER-1187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Gour Saha updated SLIDER-1187:
------------------------------
Fix Version/s: (was: Slider 1.0.0)
Slider 0.92
> Create app diagnostics resource with placeholder for containers (live/dead)
> ---------------------------------------------------------------------------
>
> Key: SLIDER-1187
> URL: https://issues.apache.org/jira/browse/SLIDER-1187
> Project: Slider
> Issue Type: Sub-task
> Components: appmaster, client
> Affects Versions: Slider 0.91
> Reporter: Gour Saha
> Assignee: Gour Saha
> Fix For: Slider 0.92
>
> Attachments: SLIDER-1187.001.patch, SLIDER-1187.002.patch,
> SLIDER-1187.003.patch, SLIDER-1187.004.patch
>
>
> This is a sample JSON structure of the proposed diagnostics resource -
> {code}
> {
> "finalStatus": "SUCCEEDED",
> "finalMessage": "stop command issued",
> "containers": [
> {
> "containerId": "container_e3374_1485226679409_0016_01_000004",
> "component": "COMMAND_LOGGER",
> "appVersion": "1.0.0",
> "state": 3,
> "exitCode": -1000,
> "diagnostics": "",
> "createTime": 1485285533968,
> "startTime": 1485285533989,
> "host": "cn008.l42scl.hortonworks.com",
> "hostURL": "http://cn008.l42scl.hortonworks.com:8042";,
> "logLink":
> "http://cn007.l42scl.hortonworks.com:19888/jobhistory/logs/cn008.l42scl.hortonworks.com:45454/container_e3374_1485226679409_0016_01_000004/ctx/root";
> },
> {
> "containerId": "container_e3374_1485226679409_0016_01_000003",
> "component": "COMMAND_LOGGER",
> "appVersion": "1.0.0",
> "state": 3,
> "exitCode": -1000,
> "diagnostics": "",
> "createTime": 1485285120456,
> "startTime": 1485285120723,
> "host": "cn005.l42scl.hortonworks.com",
> "hostURL": "http://cn005.l42scl.hortonworks.com:8042";,
> "logLink":
> "http://cn007.l42scl.hortonworks.com:19888/jobhistory/logs/cn005.l42scl.hortonworks.com:45454/container_e3374_1485226679409_0016_01_000003/ctx/root";
> },
> {
> "containerId": "container_e3374_1485226679409_0016_01_000002",
> "component": "COMMAND_LOGGER",
> "appVersion": "1.0.0",
> "state": 4,
> "exitCode": -100,
> "diagnostics": "Container released by application",
> "createTime": 1485285120464,
> "startTime": 1485285120522,
> "host": "cn008.l42scl.hortonworks.com",
> "hostURL": "http://cn008.l42scl.hortonworks.com:8042";,
> "logLink":
> "http://cn007.l42scl.hortonworks.com:19888/jobhistory/logs/cn008.l42scl.hortonworks.com:45454/container_e3374_1485226679409_0016_01_000002/ctx/root";
> }
> ]
> }
> {code}
> API consumers will need to call _*SliderClient#actionDiagnosticContainers*_
> API to get the _*ApplicationDiagnostics*_ object. This object has 3
> attributes -
> # *finalStatus* - app-level status which is empty for a running app (of type
> _org.apache.hadoop.yarn.api.records.FinalApplicationStatus_)
> # *finalMessage* - app-level summary message which is populated after the app
> dies
> # *containers* - a set of all currently running and all previously failed
> containers (type _org.apache.slider.api.types.ContainerInformation_)
> Note, it also contains an additional helper method _getContainer(String
> containerId)_ which will return the _ContainerInformation_ for a specific
> container if the container-id is known.
> _*ContainerInformation*_ (for each running or dead container) contains
> several attributes which gets updated as and when a container transitions
> through various stages - like newly created, running, dead, etc. Following
> are the attributes -
> - containerId
> - component
> - appVersion
> - released (true/false)
> - state (of type org.apache.slider.api.StateValues)
> - exitCode (of type org.apache.hadoop.yarn.api.records.ContainerExitStatus)
> - diagnostics (container level diagnostics message)
> - createTime
> - startTime
> - host
> - hostURL
> - placement
> - output (empty so don't use)
> - logLink (container log link for a live as well as a dead container)
> h6. For an app which is still RUNNING -
> _ApplicationDiagnostics_ object can be retrieved at any point in the app's
> lifetime by calling the
> _*SliderClient#actionDiagnosticContainers(ActionDiagnosticArgs
> diagnosticArgs)*_ API with only the name field in _ActionDiagnosticArgs_ set
> to the application name. It can be retrieved on the command-line by calling
> the *diagnostics* command with the following arguments -
> {code}
> slider diagnostics --name <app-name> --containers
> {code}
> On the command-line it is dumped in JSON format.
> h6. For an app which is FAILED/KILLED -
> The _ApplicationDiagnostics_ object is set as YARN application diagnostics
> and can be retrieved by YARN API or through *application* command line like -
> {code}
> yarn application -status <application_id>
> {code}
> Note, the _ApplicationDiagnostics_ object (in JSON format) can also be viewed
> in RM UI of the application in the *Diagnostics:* field.
> To retrieve using YARN Client API, this JSON string can be retrieved by
> calling _*YarnClient#getApplicationReport(ApplicationId appId)*_ to get the
> _ApplicationReport_ and then subsequently calling
> _*ApplicationReport#getDiagnostics*_. This JSON string can then be easily
> converted to the Slider _ApplicationDiagnostics_ object by calling the static
> method _*ApplicationDiagnostics#fromJson(String json)*_.
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