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https://issues.apache.org/jira/browse/ZOOKEEPER-733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12873097#action_12873097
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Patrick Hunt commented on ZOOKEEPER-733:
----------------------------------------
Ben that fixes SessionTest for me, but not QuorumTest. I modified QT to use
that same mechanism but it still fails.
For some reason the new session (using existing sessionid/pass) gets a moved
exception. Note that these clients are connecting to diff servers. Perhaps
that's the issue (timing)?
{noformat}
2010-05-28 11:10:25,419 - INFO [main:junit4zktestrunner$loggedinvokemet...@49]
- RUNNING TEST METHOD testSessionMoved
2010-05-28 11:10:25,420 - INFO [main:zookee...@375] - Initiating client
connection, connectString=127.0.0.1:11354 sessionTimeout=30000
watcher=org.apache.zookeeper.test.quorumtes...@5c1d29c1
2010-05-28 11:10:25,421 - INFO [main-SendThread():clientcnxn$sendthr...@1007]
- Opening socket connection to server /127.0.0.1:11354
2010-05-28 11:10:25,442 - INFO
[main-SendThread(localhost:11354):clientcnxn$sendthr...@915] - Socket
connection established to localhost/127.0.0.1:11354, initiating session
2010-05-28 11:10:25,443 - INFO [New I/O server worker
#51-1:zookeeperser...@795] - Client attempting to establish new session at
/127.0.0.1:41741
2010-05-28 11:10:25,463 - WARN [QuorumPeer:0.0.0.0/0.0.0.0:11354:follo...@120]
- Got zxid 0x100000001 expected 0x1
2010-05-28 11:10:25,465 - WARN [QuorumPeer:0.0.0.0/0.0.0.0:11357:follo...@120]
- Got zxid 0x100000001 expected 0x1
2010-05-28 11:10:25,492 - WARN [QuorumPeer:0.0.0.0/0.0.0.0:11355:follo...@120]
- Got zxid 0x100000001 expected 0x1
2010-05-28 11:10:25,493 - WARN [QuorumPeer:0.0.0.0/0.0.0.0:11356:follo...@120]
- Got zxid 0x100000001 expected 0x1
2010-05-28 11:10:25,625 - INFO [CommitProcessor:1:zookeeperser...@571] -
Established session 0x128e01b97ab0000 with negotiated timeout 30000 for client
/127.0.0.1:41741
2010-05-28 11:10:25,625 - INFO
[main-SendThread(localhost:11354):clientcnxn$sendthr...@685] -
readConnectRestult 36
0x[0,0,0,0,0,0,75,30,1,28,ffffffe0,1b,ffffff97,ffffffab,0,0,0,0,0,10,ffffffd7,ffffffe2,ffffffd1,39,18,fffffff1,fffffff3,ffffff8c,d,3,ffffff9a,ffffffe8,21,43,ffffffef,13,]
2010-05-28 11:10:25,625 - INFO
[main-SendThread(localhost:11354):clientcnxn$sendthr...@708] - Session
establishment complete on server localhost/127.0.0.1:11354, sessionid =
0x128e01b97ab0000, negotiated timeout = 30000
2010-05-28 11:10:25,647 - INFO [main:zookee...@438] - Initiating client
connection, connectString=127.0.0.1:11355 sessionTimeout=30000
watcher=org.apache.zookeeper.test.quorumtes...@1cacd5d4
sessionId=128e01b97ab0000 sessionPasswd=<hidden>
2010-05-28 11:10:25,648 - INFO [main-SendThread():clientcnxn$sendthr...@1007]
- Opening socket connection to server /127.0.0.1:11355
2010-05-28 11:10:25,649 - INFO
[main-SendThread(localhost:11355):clientcnxn$sendthr...@915] - Socket
connection established to localhost/127.0.0.1:11355, initiating session
2010-05-28 11:10:25,650 - INFO [New I/O server worker
#52-2:zookeeperser...@788] - Client attempting to renew session
0x128e01b97ab0000 at /127.0.0.1:45500
2010-05-28 11:10:25,654 - INFO [ProcessThread:-1:preprequestproces...@405] -
Got user-level KeeperException when processing sessionid:0x128e01b97ab0000
type:setData cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown reqpath:/ Error
Path:null Error:KeeperErrorCode = Session moved
2010-05-28 11:10:25,691 - INFO
[main-SendThread(localhost:11355):clientcnxn$sendthr...@1125] - Unable to read
additional data from server sessionid 0x128e01b97ab0000, likely server has
closed socket, closing socket connection and attempting reconnect
2010-05-28 11:10:25,692 - INFO [CommitProcessor:2:nettyserverc...@73] - close
128e01b97ab0000
2010-05-28 11:10:25,692 - INFO [CommitProcessor:2:nettyserverc...@80] - close
in progress 128e01b97ab0000
2010-05-28 11:10:25,794 - INFO [main:junit4zktestrunner$loggedinvokemet...@53]
- TEST METHOD FAILED testSessionMoved
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1127)
at
org.apache.zookeeper.test.QuorumTest.testSessionMoved(QuorumTest.java:204)
{noformat}
line 204 for me is
zknew.setData("/", new byte[1], -1);
> use netty to handle client connections
> --------------------------------------
>
> Key: ZOOKEEPER-733
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-733
> Project: Zookeeper
> Issue Type: Improvement
> Reporter: Benjamin Reed
> Attachments: accessive.jar, moved.zip, ZOOKEEPER-733.patch,
> ZOOKEEPER-733.patch
>
>
> we currently have our own asynchronous NIO socket engine to be able to handle
> lots of clients with a single thread. over time the engine has become more
> complicated. we would also like the engine to use multiple threads on
> machines with lots of cores. plus, we would like to be able to support things
> like SSL. if we switch to netty, we can simplify our code and get the
> previously mentioned benefits.
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