Charles created MESOS-10088:
-------------------------------
Summary: task stuck in TASK_STAGING following agent suspended and
resumed
Key: MESOS-10088
URL: https://issues.apache.org/jira/browse/MESOS-10088
Project: Mesos
Issue Type: Bug
Reporter: Charles
Hi,
I've been testing Mesos in the context of a framework I'm developing.
As part of the integration tests, I send SIGSTOP/SIGCONT randomly to processes,
to simulate for example if they got blocked because of memory pressure or
whatever.
While doing this, I encountered a situation where a task would remain in
TASK_STAGING forever.
Here's the log when the slave is resumed with SIGCONT:
{noformat}
2020-01-16
09:43:29,797:45(0x7fbfd4ad9700):ZOO_ERROR@handle_socket_error_msg@1782: Socket
[127.0.0.1:40125] zk retcode=-4, errno=112(Host is down): failed while
receiving a server response
2020-01-16 09:43:29,797:45(0x7fbfd4ad9700):ZOO_WARN@zookeeper_interest@1597:
Exceeded deadline by 23153ms
2020-01-16 09:43:29,797:45(0x7fbfd4ad9700):ZOO_INFO@check_events@1764:
initiated connection to server [127.0.0.1:33437]
I0116 09:43:29.798094 124 group.cpp:452] Lost connection to ZooKeeper,
attempting to reconnect ...
I0116 09:43:29.798627 83 master.cpp:7083] Received register agent message from
slave(1)@192.168.65.76:51553 (lhpcb008.london.quadraturecapital.com)
I0116 09:43:29.798707 83 master.cpp:7262] Registering agent at
slave(1)@192.168.65.76:51553 (lhpcb008.london.quadraturecapital.com) with id
9886c82f-1c92-41d8-bc47-bfd614e669af-S4
I0116 09:43:29.798784 83 registrar.cpp:487] Applied 1 operations in 40710ns;
attempting to update the registry
I0116 09:43:29.798921 83 coordinator.cpp:348] Coordinator attempting to write
APPEND action at position 11
I0116 09:43:29.799089 83 replica.cpp:541] Replica received write request for
position 11 from __req_res__(54)@127.0.0.1:46799
I0116 09:43:29.799271 158 replica.cpp:541] Replica received write request for
position 11 from __req_res__(56)@127.0.0.1:46799
2020-01-16
09:43:29,799:45(0x7fbfd4ad9700):ZOO_ERROR@handle_socket_error_msg@1800: Socket
[127.0.0.1:33437] zk retcode=-112, errno=116(Stale file handle):
sessionId=0x16fadbc14f50003 has expired.
I0116 09:43:29.799561 97 replica.cpp:541] Replica received write request for
position 11 from __req_res__(55)@127.0.0.1:46799
I0116 09:43:29.799762 129 group.cpp:511] ZooKeeper session expired
I0116 09:43:29.799824 127 detector.cpp:152] Detected a new leader: None
I0116 09:43:29.799873 127 slave.cpp:1344] Lost leading master
I0116 09:43:29.799882 127 slave.cpp:1416] Detecting new master
I0116 09:43:29.799893 127 task_status_update_manager.cpp:181] Pausing sending
task status updates
I0116 09:43:29.799898 127 status_update_manager_process.hpp:379] Pausing
operation status update manager
I0116 09:43:29.800115 80 replica.cpp:695] Replica received learned notice for
position 11 from log-network(1)@127.0.0.1:46799
I0116 09:43:29.800271 81 registrar.cpp:544] Successfully updated the registry
in 1.467136ms
I0116 09:43:29.800348 81 coordinator.cpp:348] Coordinator attempting to write
TRUNCATE action at position 12
I0116 09:43:29.800462 81 replica.cpp:541] Replica received write request for
position 12 from __req_res__(57)@127.0.0.1:46799
I0116 09:43:29.800529 82 hierarchical.cpp:955] Added agent
9886c82f-1c92-41d8-bc47-bfd614e669af-S4 (lhpcb008.london.quadraturecapital.com)
with cpus:4; mem:30844; disk:4096; ports:[31000-32000] (offered or allocated:
{})
I0116 09:43:29.800549 84 master.cpp:7355] Registered agent
9886c82f-1c92-41d8-bc47-bfd614e669af-S4 at slave(1)@192.168.65.76:51553
(lhpcb008.london.quadraturecapital.com) with cpus:4; mem:30844; disk:4096;
ports:[31000-32000]
2020-01-16 09:43:29,800:45(0x7fbfd72de700):ZOO_INFO@zookeeper_close@2579:
Freeing zookeeper resources for sessionId=0x16fadbc14f50003
I0116 09:43:29.800671 81 master.cpp:10409] Sending offers [
9886c82f-1c92-41d8-bc47-bfd614e669af-O67 ] to framework
9886c82f-1c92-41d8-bc47-bfd614e669af-0000 (gus) at
[email protected]:37061
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@753: Client
environment:zookeeper.version=zookeeper C client 3.4.8
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@757: Client
environment:host.name=lhpcb008
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@764: Client
environment:os.name=Linux
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@765: Client
environment:os.arch=4.15.0-72-generic
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@766: Client
environment:os.version=#81-Ubuntu SMP Tue Nov 26 12:20:02 UTC 2019
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@774: Client
environment:user.name=charles
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@782: Client
environment:user.home=/home/charles
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@log_env@794: Client
environment:user.dir=/scratch/charles/bazel_base/519e0914f77a57b1c958838821782354/sandbox/linux-sandbox/11837/execroot/__main__/bazel-out/k8-opt/bin/cpp/tests/integration_test_2.runfiles/__main__
2020-01-16 09:43:29,800:45(0x7fbfd62dc700):ZOO_INFO@zookeeper_init@827:
Initiating client connection,
host=127.0.0.1:44283,127.0.0.1:33437,127.0.0.1:40125 sessionTimeout=10000
watcher=0x7fbfe5632340 sessionId=0 sessionPasswd=<null> context=0x7fbfcc002f18
flags=0
W0116 09:43:29.801195 126 slave.cpp:1559] Ignoring registration message from
[email protected]:46799 because it is not the expected master: None
{noformat}
Here's the task being received by the master:
{noformat}
I0116 09:43:29.839668 83 master.cpp:4287] Adding task
gus:random_error_eventually_succeeds:job-2:05cfcdc4-11e3-cea2-51ab-003c5030a74d
with resources mem(allocated: *):1024; cpus(allocated: *):1 of framework
9886c82f-1c92-41d8-bc47-bfd614e669af-0000 (gus) at
[email protected]:37061 on agent
9886c82f-1c92-41d8-bc47-bfd614e669af-S4 at slave(1)@192.168.65.76:51553
(lhpcb008.london.quadraturecapital.com){noformat}
It's forwarded to the slave:
{noformat}
I0116 09:43:29.839741 83 master.cpp:5714] Launching task
gus:random_error_eventually_succeeds:job-2:05cfcdc4-11e3-cea2-51ab-003c5030a74d
of framework 9886c82f-1c92-41d8-bc47-bfd614e669af-0000 (gus) at
[email protected]:37061 with
resources
[{"allocation_info":{"role":"*"},"name":"mem","scalar":{"value":1024.0},"type":"SCALAR"},{"allocation_info":{"role":"*"},"name":"cpus","scalar":{"value":1.0},"type":"SCALAR"}]
on agent 9886c82f-1c92-41d8-bc47-bfd614e669af-S4 at
slave(1)@192.168.65.76:51553 (lhpcb008.london.quadraturecapital.com) on new
executor
I0116 09:43:29.840129 128 slave.cpp:2130] Got assigned task
'gus:random_error_eventually_succeeds:job-2:05cfcdc4-11e3-cea2-51ab-003c5030a74d'
for framework 9886c82f-1c92-41d8-bc47-bfd614e669af-0000{noformat}
But decides to ignore it:
{noformat}
W0116 09:43:29.840143 128 slave.cpp:2135] Agent ignoring running task
'gus:random_error_eventually_succeeds:job-2:05cfcdc4-11e3-cea2-51ab-003c5030a74d'
because it was intended for old agent
9886c82f-1c92-41d8-bc47-bfd614e669af-S4{noformat}
After that, all reconciliations returned the task as TASK_STAGING:
{noformat}
mesos_task_id {
value:
"gus:random_error_eventually_succeeds:job-2:05cfcdc4-11e3-cea2-51ab-003c5030a74d"
}
state: TASK_STAGING
source: "SOURCE_MASTER"
reason: "REASON_RECONCILIATION"
message: "Reconciliation: Latest task state"{noformat}
Unfortunately this test run has the logs from the various processes (Mesos
masters and agents) intermingled so I can't easily extract them, although if
necessary I can probably try and reproduce it.
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