Dmitriy Shirchenko created AURORA-1661:
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Summary: Scheduler leader failed to re-announce itself after ZK
name was changed
Key: AURORA-1661
URL: https://issues.apache.org/jira/browse/AURORA-1661
Project: Aurora
Issue Type: Story
Reporter: Dmitriy Shirchenko
Assignee: John Sirois
After we renamed our ZK cluster we were in a situation where the Aurora leader
did not write to the ZK endpoint.
Sequence that we performed:
- change aurora cluster name in clusters.json
- restart all schedulers (all good)
- restart zk and move replication log (lose all state) during renaming:
intentional
- current Aurora leader fails to re-announce itself but election isn't
retriggered so we lose our leader
- some time later: restart all schedulers, and a new leader is elected (good
again)
Partial logs from the master (sorry, I'm not sure which parts are super
relevant).
{code}
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,723:30181(0x7f7586244700):ZOO_ERROR@handle_socket_error_msg@1697:
Socket [10.162.18.25:2181] zk retcode=-4, errno=111(Connection refused): server
refused to accept the client
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,723:30181(0x7f7586a45700):ZOO_ERROR@handle_socket_error_msg@1697:
Socket [10.162.28.31:2181] zk retcode=-4, errno=111(Connection refused): server
refused to accept the client
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,723:30181(0x7f7586244700):ZOO_INFO@check_events@1703: initiated
connection to server [10.162.22.24:2181]
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,723:30181(0x7f7586a45700):ZOO_INFO@check_events@1703: initiated
connection to server [10.162.2.27:2181]
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,733:30181(0x7f7586a45700):ZOO_INFO@check_events@1750: session
establishment complete on server [10.162.2.27:2181],
sessionId=0x28004d50ccb80001, negotiated timeout=4000
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.734082
30370 group.cpp:349] Group process (group(1)@10.162.12.31:8083) connected to
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.734127
30370 group.cpp:831] Syncing group operations: queue size (joins, cancels,
datas) = (0, 0, 0)
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.734136
30370 group.cpp:427] Trying to create path '/aurora/replicated-log' in ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.755173
30373 network.hpp:413] ZooKeeper group memberships changed
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.755249
30367 group.cpp:700] Trying to get '/aurora/replicated-log/0000000000' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.756778
30364 network.hpp:461] ZooKeeper group PIDs: { log-replica(1)@10.162.14.30:8083
}
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.763407
30373 network.hpp:413] ZooKeeper group memberships changed
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.763478
30362 group.cpp:700] Trying to get '/aurora/replicated-log/0000000000' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.764437
30362 group.cpp:700] Trying to get '/aurora/replicated-log/0000000001' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.765494
30376 network.hpp:461] ZooKeeper group PIDs: {
log-replica(1)@10.160.41.62:8083, log-replica(1)@10.162.14.30:8083 }
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:10,782:30181(0x7f7586244700):ZOO_INFO@check_events@1750: session
establishment complete on server [10.162.22.24:2181],
sessionId=0x26004d8049520002, negotiated timeout=4000
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.782429
30376 group.cpp:349] Group process (group(2)@10.162.12.31:8083) connected to
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.782444
30376 group.cpp:831] Syncing group operations: queue size (joins, cancels,
datas) = (1, 0, 0)
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.782447
30376 group.cpp:427] Trying to create path '/aurora/replicated-log' in ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.795754
30377 network.hpp:413] ZooKeeper group memberships changed
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.795805
30359 group.cpp:700] Trying to get '/aurora/replicated-log/0000000000' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.796530
30359 group.cpp:700] Trying to get '/aurora/replicated-log/0000000001' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.797600
30359 group.cpp:700] Trying to get '/aurora/replicated-log/0000000002' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.798283
30359 group.cpp:700] Trying to get '/aurora/replicated-log/0000000003' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.799046
30359 group.cpp:700] Trying to get '/aurora/replicated-log/0000000004' in
ZooKeeper
Apr 08 22:59:10 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:10.799967
30372 network.hpp:461] ZooKeeper group PIDs: {
log-replica(1)@10.160.41.62:8083, log-replica(1)@10.162.9.54:8083,
log-replica(1)@10.162.12.31:8083, log-replica(1)@10.162.14.30:8083,
log-replica(1)@10.162.29.25:8083 }
Apr 08 22:59:11 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:11.839
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1032] Opening socket connection to server
compute39-sjc1.prod.uber.internal/10.162.1.28:2181. Will not attempt to
authenticate using SA
Apr 08 22:59:11 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:11.839
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:876] Socket connection established to
compute39-sjc1.prod.uber.internal/10.162.1.28:2181, initiating session
Apr 08 22:59:11 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:11.842
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1158] Unable to read additional data from server
sessionid 0x270049a1666d1483, likely server has closed socket, closing socket
connecti
Apr 08 22:59:12 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:12.810
[RedirectMonitor STARTING-SendThread(compute38-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1032] Opening socket connection to server
compute38-sjc1.prod.uber.internal/10.162.22.24:2181. Will not attempt to
authenticate using S
Apr 08 22:59:12 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:12.810
[RedirectMonitor STARTING-SendThread(compute38-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:876] Socket connection established to
compute38-sjc1.prod.uber.internal/10.162.22.24:2181, initiating session
Apr 08 22:59:12 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:12.811
[RedirectMonitor STARTING-SendThread(compute38-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1158] Unable to read additional data from server
sessionid 0x270049a1666d1483, likely server has closed socket, closing socket
connecti
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:13,460:30181(0x7f7577fff700):ZOO_INFO@check_events@1703: initiated
connection to server [10.162.2.27:2181]
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: 2016-04-08
22:59:13,462:30181(0x7f7577fff700):ZOO_INFO@check_events@1750: session
establishment complete on server [10.162.2.27:2181],
sessionId=0x28004d50ccb8001c, negotiated timeout=10000
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.463156
30378 group.cpp:349] Group process (group(3)@10.162.12.31:8083) connected to
ZooKeeper
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.463179
30378 group.cpp:831] Syncing group operations: queue size (joins, cancels,
datas) = (0, 0, 0)
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.463186
30378 group.cpp:427] Trying to create path '/mesos' in ZooKeeper
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.466274
30373 detector.cpp:154] Detected a new leader: (id='1')
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.466698
30365 group.cpp:700] Trying to get '/mesos/json.info_0000000001' in ZooKeeper
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.467295
30360 detector.cpp:479] A new leading master ([email protected]:5050) is
detected
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.467350
30370 sched.cpp:326] New master detected at [email protected]:5050
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.467427
30370 sched.cpp:382] Authenticating with master [email protected]:5050
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.467437
30370 sched.cpp:389] Using default CRAM-MD5 authenticatee
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.467504
30360 authenticatee.cpp:121] Creating new client SASL connection
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:13.753
[RedirectMonitor STARTING-SendThread(compute36-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1032] Opening socket connection to server
compute36-sjc1.prod.uber.internal/10.162.28.31:2181. Will not attempt to
authenticate using S
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: W0408 22:59:13.753
[RedirectMonitor STARTING-SendThread(compute36-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1162] Session 0x270049a1666d1483 for server null,
unexpected error, closing socket connection and attempting reconnect
java.net.Connect
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: at
sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_72-internal]
...
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
~[na:1.8.0_72-internal]
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
~[zookeeper-3.4.8.jar:3.4.8--1]
Apr 08 22:59:13 compute33-sjc1 aurora-scheduler[30176]: at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1141)
~[zookeeper-3.4.8.jar:3.4.8--1]
Apr 08 22:59:14 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:14.851
[RedirectMonitor STARTING-SendThread(compute40-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1032] Opening socket connection to server
compute40-sjc1.prod.uber.internal/10.162.2.27:2181. Will not attempt to
authenticate using SA
Apr 08 22:59:14 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:14.851
[RedirectMonitor STARTING-SendThread(compute40-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:876] Socket connection established to
compute40-sjc1.prod.uber.internal/10.162.2.27:2181, initiating session
Apr 08 22:59:14 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:14.852
[RedirectMonitor STARTING-SendThread(compute40-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1158] Unable to read additional data from server
sessionid 0x270049a1666d1483, likely server has closed socket, closing socket
connecti
...
Apr 08 22:59:50 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:50.538
[RedirectMonitor STARTING-SendThread(compute37-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1158] Unable to read additional data from server
sessionid 0x270049a1666d1483, likely server has closed socket, closing socket
connecti
Apr 08 22:59:52 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:52.273
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1032] Opening socket connection to server
compute39-sjc1.prod.uber.internal/10.162.1.28:2181. Will not attempt to
authenticate using SA
Apr 08 22:59:52 compute33-sjc1 aurora-scheduler[30176]: W0408 22:59:52.273
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1108] Client session timed out, have not heard from
server in 1635ms for sessionid 0x270049a1666d1483
Apr 08 22:59:52 compute33-sjc1 aurora-scheduler[30176]: I0408 22:59:52.273
[RedirectMonitor STARTING-SendThread(compute39-sjc1.prod.uber.internal:2181),
ClientCnxn$SendThread:1156] Client session timed out, have not heard from
server in 1635ms for sessionid 0x270049a1666d1483, closing socket connection
and at
Apr 08 22:59:52 compute33-sjc1 aurora-scheduler[30176]: W0408 22:59:52.374
[AsyncProcessor-7, Group$ActiveMembership:370] Temporary error cancelling
membership:/aurora/scheduler/member_0000000360
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /aurora/scheduler/member_0000000360
...
{code}
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