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From "Newman, Elise" <>
Subject Accumulo and CDH4 -- "no tablet servers"
Date Fri, 05 Apr 2013 22:46:13 GMT
I am trying to properly configure Accumulo on a cluster running CDH4. I can't seem to get any
tablet servers up and running.

I've checked out trunk, built it against cdh4, and ran ./accumulo init.
Then I ran the start-all script, which produced the following output:

Starting monitor on localhost
Starting tablet servers ..... done
Starting tablet server on *********
Starting tablet server on *********
2013-04-05 13:04:05,442 [server.Accumulo] INFO : Attempting to talk to zookeeper
2013-04-05 13:04:05,623 [server.Accumulo] INFO : Zookeeper connected and initialized, attemping
to talk to HDFS
2013-04-05 13:04:05,766 [server.Accumulo] INFO : Connected to HDFS
Starting master on ********
Starting garbage collector on localhost
Starting tracer on localhost

When I checked http://localhost:50095/tservers, however, it showed that there were no tablet
servers online. I looked at http://localhost:50095/log, and saw the following message:

WARN: There are no tablet servers: check that zookeeper and accumulo are running.

I get the same message when I attempt to start the accumulo shell.

In my tracer_master.debug.log I see the following recurring exception:

2013-04-05 15:15:59,742 [impl.ServerClient] DEBUG: ClientService request failed null, retrying
org.apache.thrift.transport.TTransportException: Failed to connect to a server
at org.apache.accumulo.core.client.impl.ThriftTransportPool.getAnyTransport(
at org.apache.accumulo.core.client.impl.ServerClient.getConnection(
at org.apache.accumulo.core.client.impl.ServerClient.getConnection(
at org.apache.accumulo.core.client.impl.ServerClient.getConnection(
at org.apache.accumulo.core.client.impl.ServerClient.executeRaw(
at org.apache.accumulo.core.client.impl.ServerClient.execute(
at org.apache.accumulo.server.client.HdfsZooInstance.getAuthenticatorClassName(
at org.apache.accumulo.server.client.HdfsZooInstance.getAuthenticator(
at org.apache.accumulo.server.trace.TraceServer.<init>(
at org.apache.accumulo.server.trace.TraceServer.main(
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(
at sun.reflect.DelegatingMethodAccessorImpl.invoke(
at java.lang.reflect.Method.invoke(
at org.apache.accumulo.start.Main$

Anyone know what could be going on?

Thanks in advance,

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