Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 114639FC1 for ; Wed, 13 Jun 2012 17:06:02 +0000 (UTC) Received: (qmail 34870 invoked by uid 500); 13 Jun 2012 17:05:59 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 34845 invoked by uid 500); 13 Jun 2012 17:05:59 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 34835 invoked by uid 99); 13 Jun 2012 17:05:59 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Jun 2012 17:05:59 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of hgdeoro@gmail.com designates 209.85.214.44 as permitted sender) Received: from [209.85.214.44] (HELO mail-bk0-f44.google.com) (209.85.214.44) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Jun 2012 17:05:54 +0000 Received: by bkty8 with SMTP id y8so782714bkt.31 for ; Wed, 13 Jun 2012 10:05:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=4KFEjt++NPr1jEB/aew3P7A/E5Qe33L8qlp6KQ2kRL0=; b=VI9hEYvur72+TOiR21ybOdwtgJVLW8nazZHz8mNMaVv8yhbHknRCXyuWI+9rwW2m9+ Pm4XHRSzuEsqJXs8efb6b8IWhVYOvtyJ6O26fwqKutPrtq0pMLazpd2AmeBM4fGGn+CM +gVLhAMZoGGiW1Qq8rpaAEuJG1sUKz+PsLSRBnP/keqNEHF/pVJmFFIWfEQ2EZ6Xy7AB MmJwQQwhYkRPWQdroNLD7chpZCedRNdlKC1ePfk7wywsZ6zdIkn8qAltC2l7x934/dyZ U6tCeBlw6la+Wn5J/7hjTS8yvaFFwOSc2ZibwPm2M/nZvimkXwKs+JzY+4dyW+acA73D zBzg== MIME-Version: 1.0 Received: by 10.205.117.3 with SMTP id fk3mr14198875bkc.136.1339607133114; Wed, 13 Jun 2012 10:05:33 -0700 (PDT) Received: by 10.204.52.16 with HTTP; Wed, 13 Jun 2012 10:05:33 -0700 (PDT) In-Reply-To: References: Date: Wed, 13 Jun 2012 14:05:33 -0300 Message-ID: Subject: Re: Errors with Cassandra 1.0.10, 1.1.0, 1.1.1-SNAPSHOT and 1.2.0-SNAPSHOT From: "Horacio G. de Oro" To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=00151747553e4ed0f004c25d9744 X-Virus-Checked: Checked by ClamAV on apache.org --00151747553e4ed0f004c25d9744 Content-Type: text/plain; charset=ISO-8859-1 Hi! I've found that in all cases, the errors happened when running the tests cases of the application. Before running each tests case, a "test keyspace" is created, then the tests are executed, and the keyspace is removed. The repeated "creation, use and removal" of a keyspace causes that kind of errors, but the tests ran ok... that errors are not "propagated" to the application... Thanks! Horacio On Mon, Jun 4, 2012 at 3:50 PM, aaron morton wrote: > 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 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" >> 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) >> > >> > >> > >> > > > --00151747553e4ed0f004c25d9744 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi! I've found that in all cases, the errors happened when running= the tests cases of the application. Before running each tests case, a &quo= t;test keyspace" is created, then the tests are executed, and the keys= pace is removed.

The repeated "creation, use and removal" of a= keyspace causes that kind of errors, but the tests ran ok... that errors a= re not "propagated" to the application...

Thanks!
Horacio



=



On Mon, Jun 4, 2012 at 3:50 PM, aaron mo= rton <aaron@thelastpickle.com> wrote:
I remember someone have the "file = exists" issue a few weeks ago, IIRC it magically went away.=A0
Do yo have steps to reproduce this fault ? If you can reproduce= it on a release version please create a ticket on=A0https://issues.apac= he.org/jira/browse/CASSANDRA=A0and update the email thread.

Cheers

-----------------
Aaron Morton
Freelance Deve= loper
@aaronmorton

On 3/06/2012, at 2:56 PM, Horacio G. de Oro wrote:

<= blockquote type=3D"cite">Permissions are ok. The writes works ok, and the d= ata can be read.

Thanks!
Horacio



On Sat, Jun 2, 2012 at 11:50 PM, Kirk Tr= ue <kirk@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" <hgdeoro@gmail.com> wrote:<= br>
> Hi! While using Cassandra, I've seen this log messages when runnin= g 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-SNAP= SHOT (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 som= e bugs in the several versions of Cassandra I've tested.
>
> cassandra-1.0.10
>
> =A0- IOException: unable to mkdirs
>
> cassandra-1.1.0
>
> =A0- IOException: Unable to create directory
>
> cassandra-1.1.1-SNAPSHOT
>
> =A0- IOException: Unable to create directory
>
> cassandra-1.2.0-SNAPSHOT
>
> =A0- IOException: Unable to create directory
>
> =A0- CLibrary.java (line 191) Unable to create hard link (...)
> =A0 =A0 =A0 command output: ln: failed to create hard link `(...)/lolo= g_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 AbstractCassandraDaemo= n.java (line 139) Fatal exception in thread Thread[MutationStage:1,5,main]<= br> > java.io.IOError: java.io.IOException: unable to mkdirs /var/lib/cassan= dra/data/lolog_tests/snapshots/1338680261112-Logs_by_app
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1433)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1462)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.truncate(Colu= mnFamilyStore.java:1657)
> =A0 =A0 =A0 at org.apache.cassandra.db.TruncateVerbHandler.doVerb(Trun= cateVerbHandler.java:50)
>
> ERROR [MutationStage:11] 2012-06-02 20:37:55,730 AbstractCassandraDaem= on.java (line 139) Fatal exception in thread Thread[MutationStage:11,5,main= ]
> java.io.IOError: java.io.IOException: unable to mkdirs /var/lib/cassan= dra/data/lolog_tests/snapshots/1338680275729-Logs_by_app
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1433)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1462)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.truncate(Colu= mnFamilyStore.java:1657)
> =A0 =A0 =A0 at org.apache.cassandra.db.TruncateVerbHandler.doVerb(Trun= cateVerbHandler.java:50)
>
> ERROR [MutationStage:19] 2012-06-02 20:37:57,395 AbstractCassandraDaem= on.java (line 139) Fatal exception in thread Thread[MutationStage:19,5,main= ]
> java.io.IOError: java.io.IOException: unable to mkdirs /var/lib/cassan= dra/data/lolog_tests/snapshots/1338680277394-Logs_by_app
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1433)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1462)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.truncate(Colu= mnFamilyStore.java:1657)
> =A0 =A0 =A0 at org.apache.cassandra.db.TruncateVerbHandler.doVerb(Trun= cateVerbHandler.java:50)
>
> ERROR [MutationStage:20] 2012-06-02 20:41:26,666 AbstractCassandraDaem= on.java (line 139) Fatal exception in thread Thread[MutationStage:20,5,main= ]
> java.io.IOError: java.io.IOException: unable to mkdirs /var/lib/cassan= dra/data/lolog_tests/snapshots/1338680486666-Logs_by_app
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1433)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1462)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.truncate(Colu= mnFamilyStore.java:1657)
> =A0 =A0 =A0 at org.apache.cassandra.db.TruncateVerbHandler.doVerb(Trun= cateVerbHandler.java:50)
>
> ------------------------------------------------------------
> system-cassandra-1.1.0.log
> ------------------------------------------------------------
>
> ERROR [MutationStage:1] 2012-06-02 20:45:15,609 AbstractCassandraDaemo= n.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:384)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:186)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1440)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1483)
>
>
> ERROR [MutationStage:9] 2012-06-02 20:45:30,728 AbstractCassandraDaemo= n.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:384)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:186)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1440)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1483)
>
>
> ERROR [MutationStage:17] 2012-06-02 20:45:31,967 AbstractCassandraDaem= on.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:384)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:186)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1440)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1483)
>
> ------------------------------------------------------------
> system-cassandra-1.1.1-SNAPSHOT.log
> ------------------------------------------------------------
>
> ERROR [MutationStage:4] 2012-06-02 22:19:55,821 AbstractCassandraDaemo= n.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:386)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:173)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1488)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1540)
>
> ERROR [MutationStage:9] 2012-06-02 22:20:07,892 AbstractCassandraDaemo= n.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:386)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:173)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1488)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1540)
>
> ------------------------------------------------------------
> system-cassandra-1.2.0-SNAPSHOT.log
> ------------------------------------------------------------
>
> ERROR [MutationStage:3] 2012-06-02 20:47:23,371 AbstractCassandraDaemo= n.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
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getOrCreate(Directo= ries.java:386)
> =A0 =A0 =A0 at org.apache.cassandra.db.Directories.getSnapshotDirector= y(Directories.java:173)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1472)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1524)
>
> ERROR [MutationStage:20] 2012-06-02 20:47:40,361 CLibrary.java (line 1= 91) Unable to create hard link
> java.io.IOException: Exception while executing the command: ln /var/li= b/cassandra/data/lolog_tests/Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summa= ry.db /var/lib/cassandra/data/lolog_tests/Logs_by_app/snapshots/13386808603= 45-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-Lo= gs_by_app-ia-3-Summary.db': File exists
>
> =A0 =A0 =A0 at org.apache.cassandra.utils.FBUtilities.exec(FBUtilities= .java:561)
> =A0 =A0 =A0 at org.apache.cassandra.utils.CLibrary.createHardLinkWithE= xec(CLibrary.java:187)
> =A0 =A0 =A0 at org.apache.cassandra.utils.CLibrary.createHardLink(CLib= rary.java:150)
>
> ERROR [MutationStage:20] 2012-06-02 20:47:40,364 AbstractCassandraDaem= on.java (line 133) Exception in thread Thread[MutationStage:20,5,main]
> java.io.IOError: java.io.IOException: Exception while executing the co= mmand: 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/snap= shots/1338680860345-Logs_by_app/lolog_tests-Logs_by_app-ia-3-Summary.db, co= mmand error Code: 1, command output: ln: failed to create hard link `/var/l= ib/cassandra/data/lolog_tests/Logs_by_app/snapshots/1338680860345-Logs_by_a= pp/lolog_tests-Logs_by_app-ia-3-Summary.db': File exists
>
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshotWitho= utFlush(ColumnFamilyStore.java:1486)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.snapshot(Colu= mnFamilyStore.java:1524)
> =A0 =A0 =A0 at org.apache.cassandra.db.ColumnFamilyStore.truncate(Colu= mnFamilyStore.java:1761)
>
>
>



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