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From "Christian Spriegel (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3369) AssertionError when adding a node and doing repair, repair hangs
Date Sun, 16 Oct 2011 23:10:11 GMT

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Christian Spriegel commented on CASSANDRA-3369:
-----------------------------------------------

Update: I also had problems because I was using Defalte compression, which seems to be broken.
The AssertionError during repair still occurs with Snappy Compression.
                
> AssertionError when adding a node and doing repair, repair hangs
> ----------------------------------------------------------------
>
>                 Key: CASSANDRA-3369
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3369
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.0.0
>         Environment: Ubuntu Linux amd64, 1.0.0-rc2
>            Reporter: Christian Spriegel
>            Assignee: Sylvain Lebresne
>         Attachments: NODE1_cassandra.yaml, NODE1_system.log, NODE2_cassandra.yaml, NODE2_system.log
>
>
> Hi again,
> I was playing aroung with Cassandra 1.0.0-rc2 and got an AssertionError. The cluster
I set up was two cassandra nodes on one laptop using different 127.0.0.* loopback devices.
Both nodes have separate folders on the harddisk.
> Here is what I did:
> 1. Started node1 and inserted some data into it using a simple singlethreaded testprogram
(uses hector 0.8.0-2):
> 127.0.0.1       datacenter1 rack1       Up     Normal  583.55 MB       100.00% Token(bytes[63e5b6995466cd3221cba16646ae19ed])
> 2. I started another node, node 2 = 127.0.0.2:
> 127.0.0.2       datacenter1 rack1       Up     Normal  147.57 KB       50.00%  Token(bytes[4d6ccfeaa8bb59551751a2816fde9343])
> 127.0.0.1       datacenter1 rack1       Up     Normal  583.55 MB       50.00%  Token(bytes[63e5b6995466cd3221cba16646ae19ed])
> 3. I triggered a "nodetool -h 127.0.0.1  repair" on the first node that had the data
from my test.
> This repair does not seem to ever end. The nodetool is hanging now but my computer is
idle. I get an AssertionError on the first node:
> java.lang.AssertionError
> 	at org.apache.cassandra.service.AntiEntropyService$Validator.prepare(AntiEntropyService.java:283)
> 	at org.apache.cassandra.db.compaction.CompactionManager.doValidationCompaction(CompactionManager.java:825)
> 	at org.apache.cassandra.db.compaction.CompactionManager.access$600(CompactionManager.java:63)
> 	at org.apache.cassandra.db.compaction.CompactionManager$6.call(CompactionManager.java:432)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> 	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:662)
> Update: I dont know if it is important but here is the schema of my test:
> create keyspace Test with placement_strategy = 'org.apache.cassandra.locator.SimpleStrategy'
and strategy_options = {replication_factor:2};
> CREATE COLUMN FAMILY Response WITH key_validation_class=BytesType AND compression_options={sstable_compression:DeflateCompressor};
> kind regards,
> Christian

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