The link between the AWS and the local DataCenter was down for around 2 minutes. I have been running ping continuously from the DataCenter to the AWS and that wasn't responding for a few minutes.
Are you saying since we see Send Notification messages in the logs , that would mean the Observers are able to connect to the ZK . Only that the ZK server leader is not able to respond back ? This is what i see from the Server logs 2015-10-09 16:02:45,780 [myid:3] - ERROR [LearnerHandler-/10.10.4.46:38161 :LearnerHandler@633] - Unexpected exception causing shutdown while sock still open 2015-10-09 16:19:28,160 [myid:3] - WARN [RecvWorker:5:QuorumCnxManager$RecvWorker@780] - Connection broken for id 5, my id = 3, error = On Wed, Oct 14, 2015 at 1:28 AM, Flavio Junqueira <[email protected]> wrote: > Can you tell why the server wasn't responding to the notifications from > the observer? The log file is from the observer and it sounds like it is > being able to send messages out, but it isn't clear why the server isn't > responding. > > -Flavio > > > On 14 Oct 2015, at 01:51, elastic search <[email protected]> wrote: > > > > > > Hello Experts > > > > We have 2 Observers running in AWS connecting over to local ZK Ensemble > in our own DataCenter. > > > > There have been instances where we see network drop for a minute between > the networks. > > However the Observers take around 15 minutes to recover even if the > network outage is for a minute. > > > > From the logs > > java.net.SocketTimeoutException: Read timed out > > 2015-10-13 22:26:03,927 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 400 > > 2015-10-13 22:26:04,328 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 800 > > 2015-10-13 22:26:05,129 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 1600 > > 2015-10-13 22:26:06,730 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 3200 > > 2015-10-13 22:26:09,931 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 6400 > > 2015-10-13 22:26:16,332 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 12800 > > 2015-10-13 22:26:29,133 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 25600 > > 2015-10-13 22:26:54,734 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 51200 > > 2015-10-13 22:27:45,935 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:28:45,936 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:29:45,937 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:30:45,938 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:31:45,939 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:32:45,940 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:33:45,941 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:34:45,942 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:35:45,943 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:36:45,944 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:37:45,945 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:38:45,946 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:39:45,947 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:40:45,948 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > 2015-10-13 22:41:45,949 [myid:4] - INFO > [QuorumPeer[myid=4]/0:0:0:0:0:0:0:0:2181:FastLeaderElection@849] - > Notification time out: 60000 > > > > And then finally exits the QuorumCnxManager run loop with the following > message > > WARN [RecvWorker:2:QuorumCnxManager$RecvWorker@780] - Connection > broken for id 2 > > > > How can we ensure the observer does not go out for service such a long > duration ? > > > > Attached the full logs > > > > Please help > > Thanks > > > > <zookeeper.log.zip> > >
