So the file structure inside zookeeper(now after formatting zookeepers) is:
Accumulo
- d61d7dd5-0f11-437b-9152-d3f171f9af33
- users
- monitor
- problems
- root_tablet
- gc
- hdfs_reservations
- table_locks
- namespaces
- recovery
- fate
- tservers
- tables
- replication
- next_file
- config
- bulk_failed_copyq
- dead
- masters
- instances
- test
test is the name of my new instance. Yes I reinitialized accumulo using
/bin/accumulo init
Best regards,
Yamini Joshi
On Fri, Oct 7, 2016 at 10:12 AM, Michael Wall <[email protected]> wrote:
> Yep, I was running 1.6
>
> On Fri, Oct 7, 2016 at 11:08 AM Sean Busbey <[email protected]> wrote:
>
>> tracers used to be under the instance id in 1.6. I can confirm that in
>> 1.7.2 it is definitely at /tracers. I just ran into this issue last
>> week.
>>
>> @Yamini where do you get the Node does not exist error? Could you
>> copy/paste the whole stacktrace? When I followed the same workaround
>> Josh mentioned, restarting the Trace servers was sufficient to have
>> the znode recreated.
>>
>> On Fri, Oct 7, 2016 at 10:01 AM, Josh Elser <[email protected]> wrote:
>> > I had pulled up 1.7.2 and I thought /tracers was at the root of
>> ZooKeeper
>> > (not within the /accumulo/$instance.id znode). Maybe I looked at the
>> wrong
>> > code though?
>> >
>> > Michael Wall wrote:
>> >>
>> >> Maybe this is already known, so apologies in advance. But don't you
>> >> need to do
>> >>
>> >> $ $ZOOKEEPER_HOME/bin/zkCli.sh -server m4:2181,m5:2181,m6:2181
>> >>>
>> >>> rmr accumulo/WHATEVER-INSTANCE-ID/tracers
>> >>
>> >>
>> >> instead of rmr /tracers
>> >>
>> >> If you don't know the instance id, I you can do the following in
>> zookeeper
>> >>
>> >> get /accumulo/instances/INSTANCE_NAME
>> >>
>> >>
>> >>
>> >> On Thu, Oct 6, 2016 at 6:26 PM, Josh Elser <[email protected]
>> >> <mailto:[email protected]>> wrote:
>> >>
>> >> Uh, I am confused now. /tracers/ is the default parent znode that
>> >> the Accumulo Tracer process registers itself in. We can also see
>> >> this is what was happening with your snippet.
>> >>
>> >> I don't understand how that would not exist. Have you properly
>> >> configured ZooKeeper to act as a quorom? (e.g. if you zkCli.sh
>> >> -server to your ZK servers individually, do you see a consistent
>> >> view of ZK?)
>> >>
>> >> You can try to remove the directory in HDFS you configured Accumulo
>> >> to use, and re `accumulo init` to get back to an initial state. I'm
>> >> not sure how you got into this situation to begin with.
>> >>
>> >> Yamini Joshi wrote:
>> >>
>> >> 1.7.2
>> >>
>> >>
>> >> Best regards,
>> >> Yamini Joshi
>> >>
>> >> On Thu, Oct 6, 2016 at 4:17 PM, Josh Elser <
>> [email protected]
>> >> <mailto:[email protected]>
>> >> <mailto:[email protected] <mailto:[email protected]>>>
>> >> wrote:
>> >>
>> >> Hrm, maybe I am looking at a newer version of Accumulo
>> than
>> >> what
>> >> you're using. What version are you on?
>> >>
>> >> Yamini Joshi wrote:
>> >>
>> >> Thank you for replying Josh.
>> >> I am getting this error:
>> >> Node does not exist: /tracers
>> >>
>> >> I did ls and saw accumulo there. Should I delete that?
>> >> When I try to delete accumulo, it gives me a
>> >> Authentication is
>> >> not valid
>> >> error.
>> >>
>> >> Best regards,
>> >> Yamini Joshi
>> >>
>> >> On Thu, Oct 6, 2016 at 2:57 PM, Josh Elser
>> >> <[email protected] <mailto:[email protected]>
>> >> <mailto:[email protected] <mailto:[email protected]>>
>> >> <mailto:[email protected] <mailto:[email protected]>
>> >> <mailto:[email protected] <mailto:[email protected]>>>>
>> >> wrote:
>> >>
>> >> Hi Yamini,
>> >>
>> >> The /tracers node in ZooKeeper was likely
>> >> initialized
>> >> previously
>> >> using an Accumulo configuration that has a
>> >> different value for
>> >> instance.secret. You can delete this znode to
>> move
>> >> forward
>> >> if you
>> >> have no other Accumulo instance you intend to run
>> >> on this
>> >> ZK instance.
>> >>
>> >> $ $ZOOKEEPER_HOME/bin/zkCli.sh -server
>> >> m4:2181,m5:2181,m6:2181
>> >> > rmr /tracers
>> >>
>> >> You can also set a different value for
>> >> trace.zookeeper.path in
>> >> accumulo-site.xml. After doing this, you can try
>> >> running a
>> >> start-all.sh again to start the tracer.
>> >>
>> >> You also mentioned that the Monitor did not start
>> >> but did not
>> >> include an exception for that service. The error
>> you
>> >> included only
>> >> shows that the Accumulo Master/TabletServer did
>> not
>> >> correctly start
>> >> and assign the system tables (accumulo.root and
>> >> accumulo.metadata).
>> >>
>> >>
>> >> Yamini Joshi wrote:
>> >>
>> >> Hello all
>> >>
>> >> I am trying to configure a multinode cluster
>> >> with
>> >> accumulo. I am
>> >> using 3
>> >> machines with the config as follows:
>> >>
>> >> M4: Hadoop Master/Acc Slave
>> >> M5: Accumulo Master/Monitor/Gc
>> >> M6: Slave
>> >>
>> >> I have configured zookeeper ensemble on the
>> >> cluster
>> >> with all the 3
>> >> nodes. The Hadoop part seems to work fine, I
>> >> can see
>> >> the console
>> >> and run
>> >> MR jobs easily. I can also see the zookeeper
>> >> cluster
>> >> with M2 as the
>> >> leader. My problem is with accumulo, after
>> >> accumulo init:
>> >> bin/accumulo init
>> >> which seems to run without any error,
>> after
>> >> I isuue
>> >> the command
>> >> bin/start-all.sh
>> >> the Monitor process can't start. I am
>> >> getting this
>> >> error in
>> >> my tracer log:
>> >> [start.Main] ERROR: Thread 'tracer' died.
>> >>
>> >> org.apache.zookeeper.KeeperException$NoAuthException:
>> >> KeeperErrorCode =
>> >> NoAuth for /tracers/trace-
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.zookeeper.KeeperException.create(KeeperException.java:113)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>> >> at
>> >> org.apache.zookeeper.ZooKeeper.create(ZooKeeper.
>> java:783)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.accumulo.fate.zookeeper.ZooUtil.putEphemeralSequential(
>> ZooUtil.java:464)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.accumulo.fate.zookeeper.ZooReaderWriter.
>> putEphemeralSequential(ZooReaderWriter.java:99)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.accumulo.tracer.TraceServer.registerInZooKeeper(
>> TraceServer.java:304)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.accumulo.tracer.TraceServer.<init>(TraceServer.java:241)
>> >> at
>> >>
>> >>
>> >> org.apache.accumulo.tracer.TraceServer.main(TraceServer.
>> java:346)
>> >> at
>> >>
>> >>
>> >>
>> >> org.apache.accumulo.tracer.TracerExecutable.execute(
>> TracerExecutable.java:33)
>> >> at
>> >> org.apache.accumulo.start.Main$1.run(Main.java:120)
>> >> at java.lang.Thread.run(Thread.
>> java:745)
>> >>
>> >> And this in my monitor debug log:
>> >> Failed to locate tablet for table : !0 row :
>> >> ~err_\100
>> >>
>> >> I can see that the accumulo dir has been
>> >> created in the
>> >> HDFS.
>> >> Can anyone
>> >> please guide me set this up? I am attaching
>> my
>> >> config
>> >> files here
>> >> (Rest
>> >> all the same generated as a result of
>> >> bin_config file).
>> >>
>> >> Best regards,
>> >> Yamini Joshi
>> >>
>> >>
>> >>
>> >>
>> >
>>
>>
>>
>> --
>> busbey
>>
>
