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https://issues.apache.org/jira/browse/CASSANDRA-5275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582701#comment-13582701
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David Sauer commented on CASSANDRA-5275:
----------------------------------------
now a "block" of these exception got logged while running "nodetool scrub"
> Error validating row DecoratedKey(..., ...)
> -------------------------------------------
>
> Key: CASSANDRA-5275
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5275
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.2.1
> Environment: 3 nodes, each 22GB, using internode ssl
> Reporter: David Sauer
>
> after upgrading from 1.1.9 to 1.2.1 this happend many times.
> WARN [CompactionExecutor:699] 2013-02-19 19:31:18,940 OutputHandler.java
> (line 57) Non-fatal error reading row (stacktrace follows)
> java.lang.RuntimeException: Error validating row
> DecoratedKey(21728933070208571032820692349722239108,
> 32303133303132382d323133322d6c6f6767696e67)
> at
> org.apache.cassandra.io.sstable.SSTableIdentityIterator.getColumnFamilyWithColumns(SSTableIdentityIterator.java:244)
> at
> org.apache.cassandra.db.compaction.PrecompactedRow.merge(PrecompactedRow.java:109)
> at
> org.apache.cassandra.db.compaction.PrecompactedRow.<init>(PrecompactedRow.java:93)
> at
> org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:162)
> at
> org.apache.cassandra.db.compaction.CompactionController.getCompactedRow(CompactionController.java:168)
> at org.apache.cassandra.db.compaction.Scrubber.scrub(Scrubber.java:173)
> at
> org.apache.cassandra.db.compaction.CompactionManager.scrubOne(CompactionManager.java:544)
> at
> org.apache.cassandra.db.compaction.CompactionManager.doScrub(CompactionManager.java:533)
> at
> org.apache.cassandra.db.compaction.CompactionManager.access$400(CompactionManager.java:75)
> at
> org.apache.cassandra.db.compaction.CompactionManager$3.perform(CompactionManager.java:270)
> at
> org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:240)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> 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:292)
> at
> org.apache.cassandra.db.ColumnFamily.validateColumnFields(ColumnFamily.java:377)
> at
> org.apache.cassandra.io.sstable.SSTableIdentityIterator.getColumnFamilyWithColumns(SSTableIdentityIterator.java:240)
> ... 15 more
> WARN [CompactionExecutor:699] 2013-02-19 19:31:18,941 OutputHandler.java
> (line 52) Row at 2464413 is unreadable; skipping to next
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