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https://issues.apache.org/jira/browse/TEZ-3181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15205803#comment-15205803
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Rajesh Balamohan commented on TEZ-3181:
---------------------------------------
This is mainly for HistoryEvent (VERTEX_PARALLELISM_UPDATED which parser is
not interested in) which is not present in 0.8. E.g, When zeppelin has 0.8
parser, it would have issues parsing 0.7 jobs.
> History parser : Handle invalid/unsupported history event types gracefully
> --------------------------------------------------------------------------
>
> Key: TEZ-3181
> URL: https://issues.apache.org/jira/browse/TEZ-3181
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Assignee: Rajesh Balamohan
> Attachments: TEZ-3181.1.patch
>
>
> TEZ-2581 changed/renamed some of HistoryEventType. This causes parser to
> throw exception when trying to parse 0.7.x ATS data with 0.8.x parser.
> {noformat}
> Exception in thread "main" java.lang.IllegalArgumentException: No enum
> constant
> org.apache.tez.dag.history.HistoryEventType.VERTEX_PARALLELISM_UPDATED
> at java.lang.Enum.valueOf(Enum.java:238)
> at
> org.apache.tez.dag.history.HistoryEventType.valueOf(HistoryEventType.java:21)
> at
> org.apache.tez.history.parser.datamodel.VertexInfo.<init>(VertexInfo.java:117)
> at
> org.apache.tez.history.parser.datamodel.VertexInfo.create(VertexInfo.java:159)
> at
> org.apache.tez.history.parser.ATSFileParser.processVertices(ATSFileParser.java:98)
> at
> org.apache.tez.history.parser.ATSFileParser.parseATSZipFile(ATSFileParser.java:202)
> at
> org.apache.tez.history.parser.ATSFileParser.getDAGData(ATSFileParser.java:70)
> {noformat}
> Long term fix is to have versioning support (TEZ-3179) in ATS data.
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