I remember someone have the "file exists" issue a few weeks ago, IIRC it magically went away.
Do yo have steps to reproduce this fault ? If you can reproduce it on a release version please create a ticket on https://issues.apache.org/jira/browse/CASSANDRA and update the email thread. Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 3/06/2012, at 2:56 PM, Horacio G. de Oro wrote: > Permissions are ok. The writes works ok, and the data can be read. > > Thanks! > Horacio > > > > On Sat, Jun 2, 2012 at 11:50 PM, Kirk True <k...@mustardgrain.com> wrote: > Permissions problems on /var for the user running Cassandra? > > Sent from my iPhone > > On Jun 2, 2012, at 6:56 PM, "Horacio G. de Oro" <hgde...@gmail.com> wrote: > > > Hi! While using Cassandra, I've seen this log messages when running some > > test cases (which insert lots of columns in 4 rows). > > I've tryied Cassandra 1.0.10, 1.1.0, 1.1.1-SNAPSHOT and 1.2.0-SNAPSHOT > > (built from git). I'm using the default configuration, Oracle jdk 1.6.0_32, > > Ubuntu 12.04 and pycassa. > > > > Since I'm very new to Cassandra (I'm just starting to learn it) I don't > > know if I'm doing something wrong, or maybe there are some bugs in the > > several versions of Cassandra I've tested. > > > > cassandra-1.0.10 > > > > - IOException: unable to mkdirs > > > > cassandra-1.1.0 > > > > - IOException: Unable to create directory > > > > cassandra-1.1.1-SNAPSHOT > > > > - IOException: Unable to create directory > > > > cassandra-1.2.0-SNAPSHOT > > > > - IOException: Unable to create directory > > > > - CLibrary.java (line 191) Unable to create hard link (...) > > command output: ln: failed to create hard link > > `(...)/lolog_tests-Logs_by_app-ia-3-Summary.db': File exists > > > > > > > > Thanks in advance! > > Horacio > > > > > > ------------------------------------------------------------ > > system-cassandra-1.0.10.log > > ------------------------------------------------------------ > > > > ERROR [MutationStage:1] 2012-06-02 20:37:41,115 > > AbstractCassandraDaemon.java (line 139) Fatal exception in thread > > Thread[MutationStage:1,5,main] > > java.io.IOError: java.io.IOException: unable to mkdirs > > /var/lib/cassandra/data/lolog_tests/snapshots/1338680261112-Logs_by_app > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1433) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1462) > > at > > org.apache.cassandra.db.ColumnFamilyStore.truncate(ColumnFamilyStore.java:1657) > > at > > org.apache.cassandra.db.TruncateVerbHandler.doVerb(TruncateVerbHandler.java:50) > > > > ERROR [MutationStage:11] 2012-06-02 20:37:55,730 > > AbstractCassandraDaemon.java (line 139) Fatal exception in thread > > Thread[MutationStage:11,5,main] > > java.io.IOError: java.io.IOException: unable to mkdirs > > /var/lib/cassandra/data/lolog_tests/snapshots/1338680275729-Logs_by_app > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1433) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1462) > > at > > org.apache.cassandra.db.ColumnFamilyStore.truncate(ColumnFamilyStore.java:1657) > > at > > org.apache.cassandra.db.TruncateVerbHandler.doVerb(TruncateVerbHandler.java:50) > > > > ERROR [MutationStage:19] 2012-06-02 20:37:57,395 > > AbstractCassandraDaemon.java (line 139) Fatal exception in thread > > Thread[MutationStage:19,5,main] > > java.io.IOError: java.io.IOException: unable to mkdirs > > /var/lib/cassandra/data/lolog_tests/snapshots/1338680277394-Logs_by_app > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1433) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1462) > > at > > org.apache.cassandra.db.ColumnFamilyStore.truncate(ColumnFamilyStore.java:1657) > > at > > org.apache.cassandra.db.TruncateVerbHandler.doVerb(TruncateVerbHandler.java:50) > > > > ERROR [MutationStage:20] 2012-06-02 20:41:26,666 > > AbstractCassandraDaemon.java (line 139) Fatal exception in thread > > Thread[MutationStage:20,5,main] > > java.io.IOError: java.io.IOException: unable to mkdirs > > /var/lib/cassandra/data/lolog_tests/snapshots/1338680486666-Logs_by_app > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1433) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1462) > > at > > org.apache.cassandra.db.ColumnFamilyStore.truncate(ColumnFamilyStore.java:1657) > > at > > org.apache.cassandra.db.TruncateVerbHandler.doVerb(TruncateVerbHandler.java:50) > > > > ------------------------------------------------------------ > > system-cassandra-1.1.0.log > > ------------------------------------------------------------ > > > > ERROR [MutationStage:1] 2012-06-02 20:45:15,609 > > AbstractCassandraDaemon.java (line 134) Exception in thread > > Thread[MutationStage:1,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680715606-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:384) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:186) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1440) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1483) > > > > > > ERROR [MutationStage:9] 2012-06-02 20:45:30,728 > > AbstractCassandraDaemon.java (line 134) Exception in thread > > Thread[MutationStage:9,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680730727-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:384) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:186) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1440) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1483) > > > > > > ERROR [MutationStage:17] 2012-06-02 20:45:31,967 > > AbstractCassandraDaemon.java (line 134) Exception in thread > > Thread[MutationStage:17,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680731966-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:384) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:186) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1440) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1483) > > > > ------------------------------------------------------------ > > system-cassandra-1.1.1-SNAPSHOT.log > > ------------------------------------------------------------ > > > > ERROR [MutationStage:4] 2012-06-02 22:19:55,821 > > AbstractCassandraDaemon.java (line 134) Exception in thread > > Thread[MutationStage:4,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338686395804-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:386) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:173) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1488) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1540) > > > > ERROR [MutationStage:9] 2012-06-02 22:20:07,892 > > AbstractCassandraDaemon.java (line 134) Exception in thread > > Thread[MutationStage:9,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338686407891-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:386) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:173) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1488) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1540) > > > > ------------------------------------------------------------ > > system-cassandra-1.2.0-SNAPSHOT.log > > ------------------------------------------------------------ > > > > ERROR [MutationStage:3] 2012-06-02 20:47:23,371 > > AbstractCassandraDaemon.java (line 133) Exception in thread > > Thread[MutationStage:3,5,main] > > java.io.IOError: java.io.IOException: Unable to create directory > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680843363-Logs_by_app > > at > > org.apache.cassandra.db.Directories.getOrCreate(Directories.java:386) > > at > > org.apache.cassandra.db.Directories.getSnapshotDirectory(Directories.java:173) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1472) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1524) > > > > ERROR [MutationStage:20] 2012-06-02 20:47:40,361 CLibrary.java (line 191) > > Unable to create hard link > > java.io.IOException: Exception while executing the command: ln > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db > > > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680860345-Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db, > > command error Code: 1, command output: ln: failed to create hard link > > `/var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680860345-Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db': > > File exists > > > > at org.apache.cassandra.utils.FBUtilities.exec(FBUtilities.java:561) > > at > > org.apache.cassandra.utils.CLibrary.createHardLinkWithExec(CLibrary.java:187) > > at > > org.apache.cassandra.utils.CLibrary.createHardLink(CLibrary.java:150) > > > > ERROR [MutationStage:20] 2012-06-02 20:47:40,364 > > AbstractCassandraDaemon.java (line 133) Exception in thread > > Thread[MutationStage:20,5,main] > > java.io.IOError: java.io.IOException: Exception while executing the > > command: ln > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db > > > > /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680860345-Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db, > > command error Code: 1, command output: ln: failed to create hard link > > `/var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680860345-Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db': > > File exists > > > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshotWithoutFlush(ColumnFamilyStore.java:1486) > > at > > org.apache.cassandra.db.ColumnFamilyStore.snapshot(ColumnFamilyStore.java:1524) > > at > > org.apache.cassandra.db.ColumnFamilyStore.truncate(ColumnFamilyStore.java:1761) > > > > > > >
