The host would not join the ring after more clean bootstrap attempts.

Noticed nodetool netstats, even though doesn't repair any streaming, does 
constantly report "Nothing streaming from" 3 specific hosts in the ring.

$ nodetool netstats
xss =  -ea -d64 -javaagent:/usr/local/cassandra/bin/../lib/jamm-0.2.5.jar 
-XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms8043M -Xmx8043M 
-Xmn800M -XX:+HeapDumpOnOutOfMemoryError -Xss256k
Mode: JOINING
Not sending any streams.
Nothing streaming from /10.67.XXX.XXX
Nothing streaming from /10.67.XXX.XXX
Nothing streaming from /10.67.XXX.XXX

Today when I had to do some unrelated maintenance and attempted to drain the 
hosts mentioned above before restarting cassandra, the drain would just hang. 
Other hosts in the ring did not have any issue.
Also the original host that is stuck in the joining state, logged the following:

[24/02/2014:15:49:42 PST] GossipTasks:1: ERROR AbstractStreamSession.java (line 
110) Stream failed because /10.67.XXX.XXX died or was restarted/removed 
(streams may still be active in background, but further streams won't be 
started)
[24/02/2014:15:49:42 PST] GossipTasks:1:  WARN RangeStreamer.java (line 246) 
Streaming from /10.67.XXX.XXX failed


From: Arindam Barua [mailto:aba...@247-inc.com]
Sent: Tuesday, February 18, 2014 5:16 PM
To: user@cassandra.apache.org
Subject: RE: Bootstrap stuck: vnode enabled 1.2.12


I believe you are talking about CASSANDRA-6685, which was introduced in 1.2.15.

I'm trying to add a node to a production ring. I have added nodes previously 
just fine. However, this node had hardware issues during a previous bootstrap, 
and now even a clean bootstrap seems to be having problems. Does the ring 
somehow remember about this node and if so can I make it forget about it? 
Decommission/removenode does not work on a node that hasn't yet bootstrapped.

From: Edward Capriolo [mailto:edlinuxg...@gmail.com]
Sent: Tuesday, February 18, 2014 12:30 PM
To: user@cassandra.apache.org<mailto:user@cassandra.apache.org>
Subject: Re: Bootstrap stuck: vnode enabled 1.2.12

There is a bug where a node without schema can not bootstrap. Do you have 
schema?

On Tue, Feb 18, 2014 at 1:29 PM, Arindam Barua 
<aba...@247-inc.com<mailto:aba...@247-inc.com>> wrote:

The node is still out of the ring. Any suggestions on how to get it in will be 
very helpful.

From: Arindam Barua [mailto:aba...@247-inc.com<mailto:aba...@247-inc.com>]
Sent: Friday, February 14, 2014 1:04 AM
To: user@cassandra.apache.org<mailto:user@cassandra.apache.org>
Subject: Bootstrap stuck: vnode enabled 1.2.12


After our otherwise successful upgrade procedure to enable vnodes, when adding 
back "new" hosts to our cluster, one non-seed host ran into a hardware issue 
during bootstrap. By the time the hardware issue was fixed a week later, all 
other nodes were added successfully, cleaned, repaired. The disks on this node 
were untouched, and when the node was started back up, it detected an 
interrupted bootstrap, and attempted to bootstrap. However, after ~24 hrs it 
was still stuck in the 'JOINING' state according to nodetool netstats on that 
node, even though no streams were flowing to/from it. Also, it did not appear 
in nodetool status in any way/form (not even as JOINING).

>From couple of observed thread dumps, the stack of the thread blocked during 
>bootstrap is at [1].

Since the node wasn't making any progress, I ended up stopping Cassandra, 
cleaning up the data and commitlog directories, and attempted a fresh 
bootstrap. Nodetool netstats immediately reported a whole bunch of streams 
queued up, and data started streaming to the node. The data directory quickly 
grew to 18 GB (the other nodes had ~25GB, but we have lot of data with low 
TTLs). However, the node ended up being in the earlier reported state, i.e. 
nodetool netstats doesn't have anything queued, but still reports the JOINING 
state, even though it's been > 24 hrs. There are no other ERRORS in the logs, 
and new data being written to the cluster makes it to this node just fine, 
triggering compactions, etc from time to time.

Any help is appreciated.

Thanks,
Arindam
[1] Thread dump
Thread 3708: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Compiled frame; information may
   be imprecise)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14,
   line=156 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt()
   @bci=1, line=811 (Interpreted frame)
 -
   
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(int)
   @bci=55, line=969 (Interpreted frame)
 -
   
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(int)
   @bci=24, line=1281 (Interpreted frame)
 - java.util.concurrent.CountDownLatch.await() @bci=5, line=207 (Interpreted
   frame)
 - org.apache.cassandra.dht.RangeStreamer.fetch() @bci=209, line=256
   (Interpreted frame)
 - org.apache.cassandra.dht.BootStrapper.bootstrap() @bci=120, line=84
   (Interpreted frame)
 - org.apache.cassandra.service.StorageService.bootstrap(java.util.Collection)
   @bci=172, line=978 (Interpreted frame)
 - org.apache.cassandra.service.StorageService.joinTokenRing(int) @bci=827,
   line=744 (Interpreted frame)
 - org.apache.cassandra.service.StorageService.initServer(int) @bci=363,
   line=585 (Interpreted frame)
 - org.apache.cassandra.service.StorageService.initServer() @bci=4, line=482
   (Interpreted frame)
 - org.apache.cassandra.service.CassandraDaemon.setup() @bci=1069, line=348
   (Interpreted frame)
 - org.apache.cassandra.service.CassandraDaemon.activate() @bci=59, line=447
   (Interpreted frame)
 - org.apache.cassandra.service.CassandraDaemon.main(java.lang.String[]) @bci=3,
   line=490 (Interpreted frame)

Reply via email to