-Re: My Accumulo 1.5.0 instance has no tablet servers
Eric Newton 2013-09-12, 18:31
To hdfs-site.xml in your hadoop configuration.
On Thu, Sep 12, 2013 at 2:27 PM, Pete Carlson <[EMAIL PROTECTED]> wrote:
> Ok, so now that I have an Accumulo monitor I discovered that my Accumulo
> instance doesn't have any tablet servers.
> Here is what I tried so far to resolve the issue:
> 1) Looked in the tserver_localhost.localdomain.log file, and found this
> FATAL message:
> 2013-09-12 08:09:42,273 [tabletserver.TabletServer] FATAL: Must set
> dfs.durable.sync OR dfs.support.append to true. Which one needs to be set
> depends on your version of HDFS. See ACCUMULO-623.
> HADOOP RELEASE VERSION SYNC NAME DEFAULT
> Apache Hadoop 0.20.205 dfs.support.append false
> Apache Hadoop 0.23.x dfs.support.append true
> Apache Hadoop 1.0.x dfs.support.append false
> Apache Hadoop 1.1.x dfs.durable.sync true
> Apache Hadoop 2.0.0-2.0.2 dfs.support.append true
> Cloudera CDH 3u0-3u3 ???? true
> Cloudera CDH 3u4 dfs.support.append true
> Hortonworks HDP `1.0 dfs.support.append false
> Hortonworks HDP `1.1 dfs.support.append false
> 2013-09-12 11:54:00,752 [server.Accumulo] INFO : tserver starting
> 2013-09-12 11:54:00,768 [server.Accumulo] INFO : Instance
> 2013-09-12 11:54:00,771 [server.Accumulo] INFO : Data Version 5
> 2013-09-12 11:54:00,771 [server.Accumulo] INFO : Attempting to talk to
> 2013-09-12 11:54:00,952 [server.Accumulo] INFO : Zookeeper connected and
> initialized, attemping to talk to HDFS
> 2013-09-12 11:54:00,956 [server.Accumulo] INFO : Connected to HDFS
> 2013-09-12 11:54:00,969 [server.Accumulo] INFO : gc.cycle.delay = 5m
> 2013-09-12 11:54:00,969 [server.Accumulo] INFO : gc.cycle.start = 30s
> 2013-09-12 11:54:00,969 [server.Accumulo] INFO : gc.port.client = 50091
> 2013-09-12 11:54:00,969 [server.Accumulo] INFO : gc.threads.delete = 16
> 2013-09-12 11:54:00,969 [server.Accumulo] INFO : gc.trash.ignore = false
> I saw this same FATAL message 8 times in the tserver_localhost.localdomain.log
> between blocks of INFO messages, but no other fatal or warn messages.
> Btw, this FATAL message also appears in my
> tserver_localhost.localdomain.debug.log file.
> When I googled this Fatal message I found this page:
> http://mail-archives.apache.org/mod_mbox/accumulo-user/201304.mbox/%[EMAIL PROTECTED]%3E with
> the same "WARN: There are no tablet servers: check that zookeeper and
> accumulo are running." message.
> I checked http://127.0.0.1:50095/tservers, and it showed that there were
> no tablet servers online. I looked at http://127.0.0.1:50095/log, and saw
> the following messages:
> FATAL: Must set dfs.durable.sync or dfs.support.append to true. Which one
> needs to be set depends on your version of HDFS. See Accumulo-623.
> WARN: There are no tablet servers: check that zookeeper and accumulo are
> Using the info from the page I referenced above, I checked my
> $ACCUMULO_HOME path and realized that I hadn't set that in the
> So, I set it to the following:
> test -z "$ACCUMULO_HOME" && export
> When I did an echo of $ACCUMULO_HOME it didn't return anything, so I also
> tried setting it in my bash profile to see if that made any difference (it
> I also looked in the lib directory but didn't see any stray jars.
> In my tracer_localhost_localdomain.log I saw the following Exception with
> 2013-09-11 16:09:48,649 [impl.ServerClient] WARN : There are no tablet
> servers: check that zookeeper and accumulo are running.