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https://issues.apache.org/jira/browse/CASSANDRA-19821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17872495#comment-17872495
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Francisco Guerrero commented on CASSANDRA-19821:
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+1 thanks for the patch and the test
> Prevent double closing SSTable writer
> -------------------------------------
>
> Key: CASSANDRA-19821
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19821
> Project: Cassandra
> Issue Type: Bug
> Components: Analytics Library
> Reporter: Yifan Cai
> Assignee: Yifan Cai
> Priority: Normal
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Analytics uses `org.apache.cassandra.io.sstable.SSTableSimpleWriter` to
> produce SSTables. Its implementation allows to be closed multiple times.
> However, the subsequent calls to "close" cause exception. For example,
> {code:java}
> java.lang.RuntimeException: Last written key
> DecoratedKey(-3078932293011064831, 000022fd) >= current key
> DecoratedKey(-3078932293011064831, 000022fd) writing into nb-1-big-Data.db
> at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.beforeAppend(BigTableWriter.java:169)
> at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:208)
> at
> org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:48)
> at
> org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:57)
> at
> org.apache.cassandra.io.sstable.SSTableSimpleWriter.writePartition(SSTableSimpleWriter.java:152)
> at
> org.apache.cassandra.io.sstable.SSTableSimpleWriter.writeLastPartitionUpdate(SSTableSimpleWriter.java:125)
> at
> org.apache.cassandra.io.sstable.SSTableSimpleWriter.close(SSTableSimpleWriter.java:93)
> at
> org.apache.cassandra.io.sstable.CQLSSTableWriter.close(CQLSSTableWriter.java:337)
> {code}
> Cassandra analytics should prevent double closing the underlying writer.
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