Sorry, I had a bad subject on the below question. St.Ack On Fri, Nov 20, 2009 at 4:22 PM, stack <st...@duboce.net> wrote:
> Below an excerpt from a single node zk quorum that was at heart of a small > hbase cluster. Unfortunately the log is not at DEBUG level (I've asked the > gentleman to up the log level meantime). What it seems to be reporting is > that an exception while closing a session caused it to timeout all connected > sessions. > > Here is the line that mentions the exception on close of session. There is > no stack trace: > > 2009-11-20 03:41:04,766 WARN org.apache.zookeeper.server.NIOServerCnxn: > Exception causing close of session 0x124bc250d700790 due to > java.io.IOException: Read error > > Is it correct that an error at this stage throws out all connected > sessions? > > Thanks, > St.Ack > > > 2009-11-20 00:00:04,948 INFO org.apache.zookeeper.server.NIOServerCnxn: > Connected to /10.1.20.101:50716 lastZxid 0 > 2009-11-20 00:00:04,982 INFO org.apache.zookeeper.server.NIOServerCnxn: > Creating new session 0x1250f26319f0016 > 2009-11-20 00:00:05,051 INFO org.apache.zookeeper.server.NIOServerCnxn: > Finished init of 0x1250f26319f0016 valid:true > 2009-11-20 00:00:05,051 WARN > org.apache.zookeeper.server.PrepRequestProcessor: Got exception when > processing sessionid:0x1250f26319f0016 type:create c > xid:0x1 zxid:0xfffffffffffffffe txntype:unknown n/a > org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = > NodeExists > at > org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:245) > at > org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114) > 2009-11-20 00:00:40,150 WARN > org.apache.zookeeper.server.PrepRequestProcessor: Got exception when > processing sessionid:0x1250f26319f0016 type:create c > xid:0x4 zxid:0xfffffffffffffffe txntype:unknown n/a > org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode = > NodeExists > at > org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:245) > at > org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:114) > 2009-11-20 00:00:50,428 WARN org.apache.zookeeper.server.NIOServerCnxn: > Exception causing close of session 0x1250f26319f0016 due to > java.io.IOExceptio > n: Read error > 2009-11-20 00:00:50,429 INFO org.apache.zookeeper.server.NIOServerCnxn: > closing session:0x1250f26319f0016 NIOServerCnxn: > java.nio.channels.SocketChann > el[connected local=/10.1.20.101:2181 remote=/10.1.20.101:50716] > 2009-11-20 00:01:22,002 INFO > org.apache.zookeeper.server.SessionTrackerImpl: Expiring session > 0x1250f26319f0016 > 2009-11-20 00:01:22,002 INFO org.apache.zookeeper.server.ZooKeeperServer: > Expiring session 0x1250f26319f0016 > 2009-11-20 00:01:22,002 INFO > org.apache.zookeeper.server.PrepRequestProcessor: Processed session > termination request for id: 0x1250f26319f0016 > 2009-11-20 03:41:04,766 WARN org.apache.zookeeper.server.NIOServerCnxn: > Exception causing close of session 0x124bc250d700790 due to > java.io.IOExceptio > n: Read error > 2009-11-20 03:41:04,864 INFO > org.apache.zookeeper.server.SessionTrackerImpl: Expiring session > 0x1250f26319f0000 > 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer: > Expiring session 0x1250f26319f0000 > 2009-11-20 03:41:04,927 INFO > org.apache.zookeeper.server.SessionTrackerImpl: Expiring session > 0x124bc250d7007a2 > 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer: > Expiring session 0x124bc250d7007a2 > 2009-11-20 03:41:04,927 INFO > org.apache.zookeeper.server.SessionTrackerImpl: Expiring session > 0x124bc250d700794 > 2009-11-20 03:41:04,927 INFO org.apache.zookeeper.server.ZooKeeperServer: > Expiring session 0x124bc250d700794 > > >
