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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7946) NPE when streaming data to a joining node and dropping table in cluster
Date Fri, 19 Sep 2014 06:28:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14140079#comment-14140079
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Marcus Eriksson commented on CASSANDRA-7946:
--------------------------------------------

+1

> NPE when streaming data to a joining node and dropping table in cluster
> -----------------------------------------------------------------------
>
>                 Key: CASSANDRA-7946
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7946
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Cassandra 2.0.9
>            Reporter: DOAN DuyHai
>            Assignee: Yuki Morishita
>              Labels: streaming
>             Fix For: 2.0.11, 2.1.1
>
>         Attachments: 7946-2.0.txt
>
>
> Summary
>  The cluster has 3 nodes with Vnodes. We were adding a 4th one (in auto bootstrap mode).
The 4 node has stream sessions, receiving data from the others.
>  While the streaming was going on (it takes quite a while because there are 200Gb of
data of worth), an existing table is dropped in the cluster and a new one is created.
>  A few time after, we caught an NPE in the log file of the joining node (still not finished
joining):
>  The NPE is located here: https://github.com/apache/cassandra/blob/cassandra-2.0/src/java/org/apache/cassandra/streaming/compress/CompressedStreamReader.java#L63
>  It can be a race condition where schema agreement has not reached the joining node.



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