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From "Tzu-Li (Gordon) Tai (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (FLINK-6853) Migrating from Flink 1.1 fails for FlinkCEP
Date Wed, 07 Jun 2017 17:27:18 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tzu-Li (Gordon) Tai resolved FLINK-6853.
----------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0
                   1.3.1

Fixed for master via 4895472ba2279d2982a45279d7be76bf3dfd8768.
Fixed for 1.3.1 via 1d89dd06c1f9b09420ad3ff095d0842b4a951938.

> Migrating from Flink 1.1 fails for FlinkCEP
> -------------------------------------------
>
>                 Key: FLINK-6853
>                 URL: https://issues.apache.org/jira/browse/FLINK-6853
>             Project: Flink
>          Issue Type: Bug
>          Components: CEP
>    Affects Versions: 1.3.0
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>             Fix For: 1.3.1, 1.4.0
>
>
> Migrating from Flink 1.1 fails for CEP, since in 1.1, the legacy {{MultiplexingStreamRecordSerializer}}
is used for stream  elements in the serialized priority queue (via the {{PriorityQueueSerializer}}).
> In newer versions, the {{StreamElementSerializer}} is used instead. For this to work,
we need to implement the compatibility methods for {{StreamElementSerializer}} such that it
is also compatible with configuration snapshots taken from the {{MultiplexingStreamRecordSerializer}}.



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