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https://issues.apache.org/jira/browse/CASSANDRA-4687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13854502#comment-13854502
 ] 

Jacek Furmankiewicz commented on CASSANDRA-4687:
------------------------------------------------

That is what I did. Downloaded 1.1.12 directly from the Apache site. Removed 
the 1.1.2 jar from /lib and replaced it with your 1.1.3-SNAPSHOT jar.

This is what the /lib folder looks now:

ls -al
total 11908
drwxr-xr-x 3 jacekf jacekf    4096 Dec 20 13:32 .
drwxr-xr-x 9 jacekf jacekf    4096 Dec 20 13:31 ..
-rw-r--r-- 1 jacekf jacekf 1928009 May 23  2013 antlr-3.2.jar
-rw------- 1 jacekf jacekf 3143109 Dec 20 13:31 
apache-cassandra-1.2.13-SNAPSHOT.jar
-rw-r--r-- 1 jacekf jacekf   35719 May 23  2013 
apache-cassandra-clientutil-1.1.12.jar
-rw-r--r-- 1 jacekf jacekf  976978 May 23  2013 
apache-cassandra-thrift-1.1.12.jar
-rw-r--r-- 1 jacekf jacekf  596381 May 23  2013 avro-1.4.0-fixes.jar
-rw-r--r-- 1 jacekf jacekf  276425 May 23  2013 avro-1.4.0-sources-fixes.jar
-rw-r--r-- 1 jacekf jacekf   36174 May 23  2013 commons-cli-1.1.jar
-rw-r--r-- 1 jacekf jacekf   30085 May 23  2013 commons-codec-1.2.jar
-rw-r--r-- 1 jacekf jacekf  261809 May 23  2013 commons-lang-2.4.jar
-rw-r--r-- 1 jacekf jacekf   25490 May 23  2013 compress-lzf-0.8.4.jar
-rw-r--r-- 1 jacekf jacekf   54345 May 23  2013 
concurrentlinkedhashmap-lru-1.3.jar
-rw-r--r-- 1 jacekf jacekf   91982 May 23  2013 cql-internal-only-1.4.0.zip
-rw-r--r-- 1 jacekf jacekf 1112253 May 23  2013 guava-r08.jar
-rw-r--r-- 1 jacekf jacekf   96046 May 23  2013 high-scale-lib-1.1.2.jar
-rw-r--r-- 1 jacekf jacekf  228286 May 23  2013 jackson-core-asl-1.9.2.jar
-rw-r--r-- 1 jacekf jacekf  765648 May 23  2013 jackson-mapper-asl-1.9.2.jar
-rw-r--r-- 1 jacekf jacekf    5792 May 23  2013 jamm-0.2.5.jar
-rw-r--r-- 1 jacekf jacekf   87325 May 23  2013 jline-0.9.94.jar
-rw-r--r-- 1 jacekf jacekf   16046 May 23  2013 json-simple-1.1.jar
-rw-r--r-- 1 jacekf jacekf  301547 May 23  2013 libthrift-0.7.0.jar
drwxr-xr-x 2 jacekf jacekf    4096 Dec 20 13:31 licenses
-rw-r--r-- 1 jacekf jacekf  481534 May 23  2013 log4j-1.2.16.jar
-rw-r--r-- 1 jacekf jacekf   80800 May 23  2013 metrics-core-2.0.3.jar
-rw-r--r-- 1 jacekf jacekf  134133 May 23  2013 servlet-api-2.5-20081211.jar
-rw-r--r-- 1 jacekf jacekf   25496 May 23  2013 slf4j-api-1.6.1.jar
-rw-r--r-- 1 jacekf jacekf    9753 May 23  2013 slf4j-log4j12-1.6.1.jar
-rw-r--r-- 1 jacekf jacekf  232121 May 23  2013 snakeyaml-1.6.jar
-rw-r--r-- 1 jacekf jacekf  995967 May 23  2013 snappy-java-1.0.4.1.jar
-rw-r--r-- 1 jacekf jacekf   55066 May 23  2013 snaptree-0.1.jar
-rw-r--r-- 1 jacekf jacekf   42854 May 23  2013 
thrift-python-internal-only-0.7.0.zip


> Exception: DecoratedKey(xxx, yyy) != DecoratedKey(zzz, kkk)
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-4687
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4687
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: CentOS 6.3 64-bit, Oracle JRE 1.6.0.33 64-bit, single 
> node cluster
>            Reporter: Leonid Shalupov
>            Priority: Minor
>         Attachments: 4687-debugging.txt, 
> apache-cassandra-1.2.13-SNAPSHOT.jar, guava-backed-cache.patch
>
>
> Under heavy write load sometimes cassandra fails with assertion error.
> git bisect leads to commit 295aedb278e7a495213241b66bc46d763fd4ce66.
> works fine if global key/row caches disabled in code.
> {quote}
> java.lang.AssertionError: DecoratedKey(xxx, yyy) != DecoratedKey(zzz, kkk) in 
> /var/lib/cassandra/data/...-he-1-Data.db
>       at 
> org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:60)
>       at 
> org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:67)
>       at 
> org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:79)
>       at 
> org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:256)
>       at 
> org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:64)
>       at 
> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1345)
>       at 
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1207)
>       at 
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1142)
>       at org.apache.cassandra.db.Table.getRow(Table.java:378)
>       at 
> org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:69)
>       at 
> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:819)
>       at 
> org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1253)
>       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)
> {quote}



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