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From rammohan ganapavarapu <rammohanga...@gmail.com>
Subject Re: Notification messages in log
Date Thu, 12 Dec 2019 17:12:02 GMT
Any thoughts?

On Wed, Dec 11, 2019 at 7:48 PM rammohan ganapavarapu <
rammohanganap@gmail.com> wrote:

> Hi Enrico,
>
> Since i have log  rotation, i am not worried about size but i see ~14 such
> messages for a second which seems unusual for me.
>
> grep "Notification: 0 (message format version)"  zookeeper.log|awk '{print
> $1" "$2}'|awk -F "," '{print $1}'|sort |uniq -c
>       9 2019-12-12 03:11:14
>      14 2019-12-12 03:11:15
>      13 2019-12-12 03:11:16
>      14 2019-12-12 03:11:17
>      14 2019-12-12 03:11:18
>      14 2019-12-12 03:11:19
>      14 2019-12-12 03:11:20
>      13 2019-12-12 03:11:21
>      14 2019-12-12 03:11:22
>      14 2019-12-12 03:11:23
>      14 2019-12-12 03:11:24
>      14 2019-12-12 03:11:25
>      13 2019-12-12 03:11:26
>      14 2019-12-12 03:11:27
>      14 2019-12-12 03:11:28
>      14 2019-12-12 03:11:29
>      14 2019-12-12 03:11:30
>      13 2019-12-12 03:11:31
>      14 2019-12-12 03:11:32
>      14 2019-12-12 03:11:33
>      14 2019-12-12 03:11:34
>      14 2019-12-12 03:11:35
>
> FYI: I  am in upgrade processes where leader is still on 3.4.5 version and
> this observer is  3.4.14 version does it cause such behavior?
>
> Thanks,
> Ram
>
> On Wed, Dec 11, 2019 at 3:22 PM Enrico Olivelli <eolivelli@gmail.com>
> wrote:
>
>> Ram,
>> How many GB of logs do you have?
>> Those messages are not scary but they shouldn't be so many.
>>
>> Enrico
>>
>>
>> Il mer 11 dic 2019, 23:16 rammohan ganapavarapu <rammohanganap@gmail.com>
>> ha scritto:
>>
>> > After 3.4.14 version upgrade i am seeing continuous messages as bellow
>> in
>> > logs, is it normal?
>> >
>> >
>> > 2019-12-11 22:12:44,036 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,108 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,180 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,252 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,323 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,395 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,467 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,538 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,610 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,682 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,754 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,825 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,897 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:44,969 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:45,041 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:45,112 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:45,184 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> > 2019-12-11 22:12:45,256 [myid:104] - INFO
>> >  [WorkerReceiver[myid=104]:FastLeaderElection@595] - Notification: 0
>> > (message format version), 100 (n.leader), 0x0 (n.zxid), 0x1 (n.round),
>> > LOOKING (n.state), 100 (n.sid), 0x0 (n.peerEpoch) OBSERVING (my state)
>> >
>> >
>> > But status looks ok though.
>> >
>> > echo mntr |nc localhost 2181
>> > zk_version 3.4.14-4c25d480e66aadd371de8bd2fd8da255ac140bcf, built on
>> > 03/06/2019 16:18 GMT
>> > zk_avg_latency 75
>> > zk_max_latency 76
>> > zk_min_latency 75
>> > zk_packets_received 907
>> > zk_packets_sent 906
>> > zk_num_alive_connections 1
>> > zk_outstanding_requests 0
>> > zk_server_state observer
>> > zk_znode_count 12168170
>> > zk_watch_count 0
>> > zk_ephemerals_count 0
>> > zk_approximate_data_size 1592831251
>> > zk_open_file_descriptor_count 40
>> > zk_max_file_descriptor_count 100000
>> > zk_fsync_threshold_exceed_count 0
>> >
>> > Thanks,
>> > Ram
>> >
>>
>

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