Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
Zookeeper >> mail # user >> chatty error: Exception causing close of session 0x0 due to java.io.IOException: Len error 1835955314


Copy link to this message
-
Re: chatty error: Exception causing close of session 0x0 due to java.io.IOException: Len error 1835955314
I think that Pat is right:

1835955314 = 6D6E7472 = 'mntr'

On Wed, Jan 18, 2012 at 2:00 AM, Patrick Hunt <[EMAIL PROTECTED]> wrote:

> Hi Alexius, it looks like localhost (127.0.0.1) is making a socket
> connection and then sending a request with a supposed size of 1.8GB.
> (the first 4 bytes of each zk request are the length)
>
> It's likely that this is a "4letterword" attempt gone wrong (or some
> other host incorrectly pinging this port). Which application are you
> pointing at the ZK server's client port? Could this be an invalid
> monitoring request? (say someone trying to do a "stat" but spelling it
> wrong?)
>
> Patrick
>
> On Tue, Jan 17, 2012 at 5:00 PM, Alexius Ludeman <[EMAIL PROTECTED]>
> wrote:
> >  hi,
> >
> > I am getting the error from all 5 zookeeperd, "Exception causing close of
> > session 0x0 due to java.io.IOException: Len error 1835955314" every
> > microsecond(?).
> >
> > I have a 5 node cluster on ubuntu maverick in aws. I've backported
> > zookeeperd and now am running 3.3.4+dfsg1-1.  My apps are
> > using zookeeper-3.3.3.jar, but within the next 3-4 weeks I will be
> > upgrading to zookeeper-3.3.4.jar.  This problem also existed with
> > zookeeperd on 3.3.3, in hopes of upgrading would solve my problem.
> >
> > I have stopped the whole world, rm -rf /var/lib/zookeeper and restarted
> > without any change to this log message.  I have several other
> environments
> > without this error showing, same versions of client and server but only 3
> > zookeeperd, and much fewer clients.
> >
> > Our use of zookeeper is: appName is a key and the value is a server:port.
> >  After the app reads in its required appName(s), it puts watches on these
> > appNames looking for changes.  So we have a bunch of apps with many
> > watches.  The client count is below.
> >
> > I would be grateful if anyone has some insight on how to debug further.
> >
> > thanks
> > lex
> >
> > zookeeper-0.p2:/var/log/zookeeper/zookeeper.log:
> >
> > 2012-01-17 22:23:59,097 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn$Factory@251][] - Accepted socket
> > connection from /127.0.0.1:38653
> > 2012-01-17 22:23:59,097 - INFO  [Thread-2309197:NIOServerCnxn@1435][] -
> > Closed socket connection for client /127.0.0.1:38652 (no session
> > established for client)
> > 2012-01-17 22:23:59,097 - WARN  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@639][] - Exception causing close of
> > session 0x0 due to java.io.IOException: Len error 1835955314
> > 2012-01-17 22:23:59,097 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1435][] - Closed socket connection
> for
> > client /127.0.0.1:38653 (no session established for client)
> > 2012-01-17 22:23:59,098 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn$Factory@251][] - Accepted socket
> > connection from /127.0.0.1:38654
> > 2012-01-17 22:23:59,098 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1237][] - Processing stat command
> from /
> > 127.0.0.1:38654
> > 2012-01-17 22:23:59,098 - INFO
> >  [Thread-2309198:NIOServerCnxn$StatCommand@1153][] - Stat command output
> > 2012-01-17 22:23:59,098 - INFO  [Thread-2309198:NIOServerCnxn@1435][] -
> > Closed socket connection for client /127.0.0.1:38654 (no session
> > established for client)
> > 2012-01-17 22:23:59,098 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn$Factory@251][] - Accepted socket
> > connection from /127.0.0.1:38655
> > 2012-01-17 22:23:59,099 - WARN  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@639][] - Exception causing close of
> > session 0x0 due to java.io.IOException: Len error 1835955314
> > 2012-01-17 22:23:59,099 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1435][] - Closed socket connection
> for
> > client /127.0.0.1:38655 (no session established for client)
> > 2012-01-17 22:23:59,099 - INFO  [NIOServerCxn.Factory:
> > 0.0.0.0/0.0.0.0:2181:NIOServerCnxn$Factory@251][] - Accepted socket
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB