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Date: Tue, 24 Nov 2009 03:18:44 +0000 (UTC)
From: "Dan Di Spaltro (JIRA)" <jira@apache.org>
To: cassandra-commits@incubator.apache.org
Subject: [jira] Commented: (CASSANDRA-578) get_range_slice NPE
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    [ https://issues.apache.org/jira/browse/CASSANDRA-578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12781757#action_12781757 ] 

Dan Di Spaltro commented on CASSANDRA-578:
------------------------------------------

Still get this error with the patches applied.

DEBUG - range_slice
DEBUG - reading org.apache.cassandra.db.RangeSliceCommand@4ef18d37 from 31@/127.0.0.1
ERROR - Error in ThreadPoolExecutor
java.lang.RuntimeException: java.lang.NullPointerException
        at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:53)
        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:38)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
        at org.apache.cassandra.db.ColumnFamilySerializer.serialize(ColumnFamilySerializer.java:58)
        at org.apache.cassandra.db.RowSerializer.serialize(Row.java:92)
        at org.apache.cassandra.db.RangeSliceReply.getReply(RangeSliceReply.java:53)
        at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:46)
        ... 4 more
ERROR - Fatal exception in thread Thread[ROW-READ-STAGE:11,5,main]
java.lang.RuntimeException: java.lang.NullPointerException
        at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:53)
        at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:38)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
        at org.apache.cassandra.db.ColumnFamilySerializer.serialize(ColumnFamilySerializer.java:58)
        at org.apache.cassandra.db.RowSerializer.serialize(Row.java:92)
        at org.apache.cassandra.db.RangeSliceReply.getReply(RangeSliceReply.java:53)
        at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:46)
        ... 4 more


> get_range_slice NPE
> -------------------
>
>                 Key: CASSANDRA-578
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-578
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.5
>            Reporter: Dan Di Spaltro
>            Assignee: Jonathan Ellis
>             Fix For: 0.5
>
>         Attachments: 0001-CASSANDRA-578-r-m-unused-Row-code-and-move-table-vari.txt, 0002-make-Row-contain-a-single-final-CF-reference.txt
>
>
> If I call get_range_slice with arguments in the SliceRange structure, then it seems to NPE.  I think it only does it when there is nothing in the range specified in the column slice start and end.
> ERROR - Error in ThreadPoolExecutor
> java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:55)
>         at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:38)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.NullPointerException
>         at org.apache.cassandra.db.Row.addColumnFamily(Row.java:96)
>         at org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1469)
>         at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:41)
>         ... 4 more
> ERROR - Fatal exception in thread Thread[ROW-READ-STAGE:8,5,main]
> java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:55)
>         at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:38)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.NullPointerException
>         at org.apache.cassandra.db.Row.addColumnFamily(Row.java:96)
>         at org.apache.cassandra.db.ColumnFamilyStore.getRangeSlice(ColumnFamilyStore.java:1469)
>         at org.apache.cassandra.service.RangeSliceVerbHandler.doVerb(RangeSliceVerbHandler.java:41)
>         ... 4 more

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