incremental_backups and snapshot_before_compaction duplicate hard links
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Key: CASSANDRA-2598
URL: https://issues.apache.org/jira/browse/CASSANDRA-2598
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 0.8 beta 1
Environment: linux & jna
Reporter: Mck SembWever
See discussion @ http://thread.gmane.org/gmane.comp.db.cassandra.user/15933/
Enabling both incremental_backups and snapshot_before_compaction leads to the
same hard links trying to created.
This leads to a stacktrace like
java.io.IOError: java.io.IOException: Unable to create hard link from
/cassandra-data/<keyspace>/<cf>-f-3875-Data.db
to
/cassandra-data/<keyspace>/snapshots/compact-<cf>/<cf>-f-3875-Data.db
(errno 17)
at
org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1629)
at
org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1654)
at org.apache.cassandra.db.Table.snapshot(Table.java:198)
at
org.apache.cassandra.db.CompactionManager.doCompaction(CompactionManager.java:504)
at
org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:146)
at
org.apache.cassandra.db.CompactionManager$1.call(CompactionManager.java:112)
at java.util.concurrent.FutureTask$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: java.io.IOException: Unable to create hard link from
/cassandra-data/<keyspace>/<cf>-f-3875-Data.db
to
/cassandra-data/<keyspace>/snapshots/compact-<cf>/<cf>-f-3875-Data.db
(errno 17)
at org.apache.cassandra.utils.CLibrary.createHardLink(CLibrary.java:155)
at
org.apache.cassandra.io.sstable.SSTableReader.createLinks(SSTableReader.java:713)
at
org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1622)
... 10 more
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