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From "James Taylor (JIRA)" <>
Subject [jira] [Commented] (PHOENIX-2477) ClassCastException in IndexedWALEditCodec after HBASE-14501 (possible dataloss)
Date Fri, 04 Dec 2015 04:12:11 GMT


James Taylor commented on PHOENIX-2477:

Thanks for checking in your fix, [~enis]. It's ok to check in to only the 4.x and master branches
as these are the only active ones currently.

So given your HBase fix, is there a b/w compat issue in Phoenix? Are we ok, because there
hasn't been an HBase release with the change that would have broken Phoenix?

> ClassCastException in IndexedWALEditCodec after HBASE-14501 (possible dataloss)
> -------------------------------------------------------------------------------
>                 Key: PHOENIX-2477
>                 URL:
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>            Priority: Critical
>             Fix For: 4.7.0
>         Attachments: phoenix-2477_v1.patch, phoenix-2477_v2.patch
> HBASE-14501 fixed the semantics in using the InputStream.available() and the interface
between the actual Decoder and BaseDecoder. 
> Running Phoenix with IndexedWALEditCodec on top of an HBase version containing HBASE-14501
now causes silent data loss since the Decoder throws 
> {code}
> java.lang.ClassCastException: org.apache.hadoop.hbase.codec.BaseDecoder$PBIS cannot be
cast to
> {code}
> which gets silently ignored from ProtobufLogReader. 

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