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https://issues.apache.org/jira/browse/MESOS-8892?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16769824#comment-16769824
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Vinod Kone commented on MESOS-8892:
-----------------------------------
[~bbannier] Can we backport this test fix to 1.6.x branch?
> MasterSlaveReconciliationTest.ReconcileDroppedOperation is flaky
> ----------------------------------------------------------------
>
> Key: MESOS-8892
> URL: https://issues.apache.org/jira/browse/MESOS-8892
> Project: Mesos
> Issue Type: Bug
> Components: test
> Affects Versions: 1.6.0
> Reporter: Greg Mann
> Assignee: Benjamin Bannier
> Priority: Major
> Labels: mesosphere
> Fix For: 1.7.0
>
> Attachments:
> MasterSlaveReconciliationTest.ReconcileDroppedOperation.txt
>
>
> This was observed on a Debian 9 SSL/GRPC-enabled build. It appears that a
> poorly-timed {{UpdateSlaveMessage}} leads to the operation reconciliation
> occurring before the expectation for the {{ReconcileOperationsMessage}} is
> registered:
> {code}
> I0508 00:11:09.700815 22498 master.cpp:4362] Processing ACCEPT call for
> offers: [ f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-O0 ] on agent
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0 at slave(212)@127.0.0.1:36309
> (localhost) for framework f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-0000 (default)
> at scheduler-b0f55e01-2f6f-42c8-8614-901036acfc31@127.0.0.1:36309
> I0508 00:11:09.700870 22498 master.cpp:3602] Authorizing principal
> 'test-principal' to reserve resources 'cpus(allocated:
> default-role)(reservations: [(DYNAMIC,default-role,test-principal)]):2;
> mem(allocated: default-role)(reservations:
> [(DYNAMIC,default-role,test-principal)]):1024; disk(allocated:
> default-role)(reservations: [(DYNAMIC,default-role,test-principal)]):1024;
> ports(allocated: default-role)(reservations:
> [(DYNAMIC,default-role,test-principal)]):[31000-32000]'
> I0508 00:11:09.701228 22493 master.cpp:4725] Applying RESERVE operation for
> resources
> [{"allocation_info":{"role":"default-role"},"name":"cpus","reservations":[{"principal":"test-principal","role":"default-role","type":"DYNAMIC"}],"scalar":{"value":2.0},"type":"SCALAR"},{"allocation_info":{"role":"default-role"},"name":"mem","reservations":[{"principal":"test-principal","role":"default-role","type":"DYNAMIC"}],"scalar":{"value":1024.0},"type":"SCALAR"},{"allocation_info":{"role":"default-role"},"name":"disk","reservations":[{"principal":"test-principal","role":"default-role","type":"DYNAMIC"}],"scalar":{"value":1024.0},"type":"SCALAR"},{"allocation_info":{"role":"default-role"},"name":"ports","ranges":{"range":[{"begin":31000,"end":32000}]},"reservations":[{"principal":"test-principal","role":"default-role","type":"DYNAMIC"}],"type":"RANGES"}]
> from framework f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-0000 (default) at
> scheduler-b0f55e01-2f6f-42c8-8614-901036acfc31@127.0.0.1:36309 to agent
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0 at slave(212)@127.0.0.1:36309
> (localhost)
> I0508 00:11:09.701498 22493 master.cpp:11265] Sending operation '' (uuid:
> 81dffb62-6e75-4c6c-a97b-41c92c58d6a7) to agent
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0 at slave(212)@127.0.0.1:36309
> (localhost)
> I0508 00:11:09.701627 22494 slave.cpp:1564] Forwarding agent update
> {"operations":{},"resource_version_uuid":{"value":"0HeA06ftS6m76SNoNZNPag=="},"slave_id":{"value":"f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0"},"update_oversubscribed_resources":true}
> I0508 00:11:09.701848 22494 master.cpp:7800] Received update of agent
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0 at slave(212)@127.0.0.1:36309
> (localhost) with total oversubscribed resources {}
> W0508 00:11:09.701905 22494 master.cpp:7974] Performing explicit
> reconciliation with agent for known operation
> 81dffb62-6e75-4c6c-a97b-41c92c58d6a7 since it was not present in original
> reconciliation message from agent
> I0508 00:11:09.702085 22494 master.cpp:11015] Updating the state of operation
> '' (uuid: 81dffb62-6e75-4c6c-a97b-41c92c58d6a7) for framework
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-0000 (latest state: OPERATION_PENDING,
> status update state: OPERATION_DROPPED)
> I0508 00:11:09.702239 22491 hierarchical.cpp:925] Updated allocation of
> framework f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-0000 on agent
> f850080d-9c7a-4ff7-8d4b-9e54aa0418cb-S0 from cpus(allocated: default-role):2;
> mem(allocated: default-role):1024; disk(allocated: default-role):1024;
> ports(allocated: default-role):[31000-32000] to disk(allocated:
> default-role)(reservations: [(DYNAMIC,default-role,test-principal)]):1024;
> cpus(allocated: default-role)(reservations:
> [(DYNAMIC,default-role,test-principal)]):2; mem(allocated:
> default-role)(reservations: [(DYNAMIC,default-role,test-principal)]):1024;
> ports(allocated: default-role)(reservations:
> [(DYNAMIC,default-role,test-principal)]):[31000-32000]
> I0508 00:11:09.702267 22493 slave.cpp:1274] New master detected at
> master@127.0.0.1:36309
> I0508 00:11:09.702306 22495 task_status_update_manager.cpp:181] Pausing
> sending task status updates
> I0508 00:11:09.702337 22493 slave.cpp:1329] Detecting new master
> {code}
> Full log is attached as
> {{MasterSlaveReconciliationTest.ReconcileDroppedOperation.txt}}.
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