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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4685) scrubbing the system keyspace fails on peers and schema
Date Mon, 24 Sep 2012 20:42:08 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-4685:
--------------------------------------

         Reviewer: jbellis
    Fix Version/s:     (was: 1.2.0)
                   1.2.0 beta 2
         Assignee: Sylvain Lebresne

(patch not intended for inclusion, since we can't trust wide row names to not blow up our
log file)
                
> scrubbing the system keyspace fails on peers and schema
> -------------------------------------------------------
>
>                 Key: CASSANDRA-4685
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4685
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.2.0 beta 1
>            Reporter: Brandon Williams
>            Assignee: Sylvain Lebresne
>             Fix For: 1.2.0 beta 2
>
>         Attachments: scrub-transparency.txt
>
>
> {noformat}
>  INFO 12:20:42,822 Scrubbing SSTableReader(path='/var/lib/cassandra/data/system/schema_columnfamilies/system-schema_columnfamilies-ia-1-Data.db')
>  WARN 12:20:42,826 Non-fatal error reading row (stacktrace follows)
> java.lang.RuntimeException: Error validating row DecoratedKey(61935297886570031978600740763604084078,
4b6579737061636531)
>         at org.apache.cassandra.io.sstable.SSTableIdentityIterator.getColumnFamilyWithColumns(SSTableIdentityIterator.java:244)
>         at org.apache.cassandra.db.compaction.PrecompactedRow.merge(PrecompactedRow.java:111)
>         at org.apache.cassandra.db.compaction.PrecompactedRow.<init>(PrecompactedRow.java:95)
>         at org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:151)
>         at org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:157)
>         at org.apache.cassandra.db.compaction.Scrubber.scrub(Scrubber.java:173)
>         at org.apache.cassandra.db.compaction.CompactionManager.scrubOne(CompactionManager.java:495)
>         at org.apache.cassandra.db.compaction.CompactionManager.doScrub(CompactionManager.java:484)
>         at org.apache.cassandra.db.compaction.CompactionManager.access$300(CompactionManager.java:66)
>         at org.apache.cassandra.db.compaction.CompactionManager$3.perform(CompactionManager.java:223)
>         at org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:193)
>         at java.util.concurrent.FutureTask$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)
> Caused by: org.apache.cassandra.db.marshal.MarshalException: String didn't validate.
>         at org.apache.cassandra.db.marshal.UTF8Type.validate(UTF8Type.java:65)
>         at org.apache.cassandra.db.Column.validateFields(Column.java:287)
>         at org.apache.cassandra.db.ColumnFamily.validateColumnFields(ColumnFamily.java:378)
>         at org.apache.cassandra.io.sstable.SSTableIdentityIterator.getColumnFamilyWithColumns(SSTableIdentityIterator.java:240)
>         ... 15 more
>  WARN 12:20:42,826 Row at 19 is unreadable; skipping to next
>  WARN 12:20:42,827 No valid rows found while scrubbing SSTableReader(path='/var/lib/cassandra/data/system/schema_columnfamilies/system-schema_columnfamilies-ia-1-Data.db');
it is marked for deletion now. If you want to attempt manual recovery, you can find a copy
in the pre-scrub snapshot
> {noformat}

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