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From "Andreas Schnitzerling (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8192) AssertionError in Memory.java
Date Thu, 13 Nov 2014 09:24:33 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14209528#comment-14209528
] 

Andreas Schnitzerling commented on CASSANDRA-8192:
--------------------------------------------------

I upgraded to 2.1.2 w/finalizer-patch for CASSANDRA-6283 and tried now the low-environment
settings mentioned in CASSANDRA-8070. They didn't change the situation. With 2.0.10 were not
any exceptions at the same configuration. Is it better to downgrade back again to avoid any
exceptions? Here is the output of nodetool info one minute after start and after 9 Memory-Exceptions:
{panel:title=system.log}
Starting NodeTool
ID               : c45a5633-84a0-4196-b2d2-8b3d7060654a
Gossip active    : true
Thrift active    : true
Native Transport active: true
Load             : 69,45 GB
Generation No    : 1415869749
Uptime (seconds) : 85
Heap Memory (MB) : 87,62 / 499,25
Data Center      : dc
Rack             : rack
Exceptions       : 9
Key Cache        : entries 189, size 15,09 KB, capacity 24 MB, 68 hits, 265 requests, 0,257
recent hit rate, 14400 save
period in seconds
Row Cache        : entries 0, size 0 bytes, capacity 0 bytes, 0 hits, 0 requests, NaN recent
hit rate, 0 save period in
seconds
Counter Cache    : entries 0, size 0 bytes, capacity 12 MB, 0 hits, 0 requests, NaN recent
hit rate, 7200 save period in
 seconds
Token            : (invoke with -T/--tokens to see all 256 tokens)
{panel}
Does it mean, that only 88MB of 499MB are used?

> AssertionError in Memory.java
> -----------------------------
>
>                 Key: CASSANDRA-8192
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8192
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Windows-7-32 bit, 3GB RAM, Java 1.7.0_67
>            Reporter: Andreas Schnitzerling
>            Assignee: Joshua McKenzie
>         Attachments: cassandra.bat, cassandra.yaml, system.log
>
>
> Since update of 1 of 12 nodes from 2.1.0-rel to 2.1.1-rel Exception during start up.
> {panel:title=system.log}
> ERROR [SSTableBatchOpen:1] 2014-10-27 09:44:00,079 CassandraDaemon.java:153 - Exception
in thread Thread[SSTableBatchOpen:1,5,main]
> java.lang.AssertionError: null
> 	at org.apache.cassandra.io.util.Memory.size(Memory.java:307) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.compress.CompressionMetadata.<init>(CompressionMetadata.java:135)
~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.compress.CompressionMetadata.create(CompressionMetadata.java:83)
~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.util.CompressedSegmentedFile$Builder.metadata(CompressedSegmentedFile.java:50)
~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.util.CompressedPoolingSegmentedFile$Builder.complete(CompressedPoolingSegmentedFile.java:48)
~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:766) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:725) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:402) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:302) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at org.apache.cassandra.io.sstable.SSTableReader$4.run(SSTableReader.java:438) ~[apache-cassandra-2.1.1.jar:2.1.1]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[na:1.7.0_55]
> 	at java.util.concurrent.FutureTask.run(Unknown Source) ~[na:1.7.0_55]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.7.0_55]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.7.0_55]
> 	at java.lang.Thread.run(Unknown Source) [na:1.7.0_55]
> {panel}
> In the attached log you can still see as well CASSANDRA-8069 and CASSANDRA-6283.



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