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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/72830/
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(Updated Sept. 8, 2020, 11:48 p.m.)
Review request for mesos and Greg Mann.
Bugs: MESOS-9609
https://issues.apache.org/jira/browse/MESOS-9609
Repository: mesos
Description
-------
Per MESOS-9609, it's possible for the master to encounter a CHECK
failure during agent removal in the following situation:
1. Given a framework with checkpoint == false, with only
executor(s) (no tasks) running on an agent:
2. When this agent disconects from the master,
Master::removeFramework(Slave*, Framework*) removes the
tasks and executors. However, when there are no tasks, this
function will accidentally insert an entry into
Master::Slave::tasks! (Due to the [] operator usage)
3. Now if the framework is removed, we have an entry in
Slave::tasks, for which there is no corresponding framework.
4. When the agent is removed, we have a CHECK failure given
we can't find the framework.
This test runs through the above scenario, which no longer crashes
given the fix applied.
Diffs
-----
src/tests/master_tests.cpp 785e5d5d72b5e388067db05579dd457e78321a0c
Diff: https://reviews.apache.org/r/72830/diff/1/
Testing
-------
Succeeds in repetition after the fix.
Before the fix:
```
[ RUN ] MasterTest.NonCheckpointingFrameworkAgentDisconnectionExecutorOnly
F0831 17:53:43.287982 9983 master.cpp:10926] Check failed: framework !=
nullptr Framework aa4bd8e2-48b7-4dcf-b45f-6ebacc50f08e-0000 not found while
removing agent aa4bd8e2-48b7-4dcf-b45f-6ebacc50f08e-S0 at
slave(1)@10.0.49.2:33564 (core-dev); agent tasks: {
aa4bd8e2-48b7-4dcf-b45f-6ebacc50f08e-0000: { } }
*** Check failure stack trace: ***
@ 0x7f35e4d64a3d google::LogMessage::Fail()
@ 0x7f35e4d63e23 google::LogMessage::SendToLog()
@ 0x7f35e4d64712 google::LogMessage::Flush()
@ 0x7f35e4d67ec8 google::LogMessageFatal::~LogMessageFatal()
@ 0x7f35e1a1f488 mesos::internal::master::Master::__removeSlave()
@ 0x7f35e1a22302 mesos::internal::master::Master::markGone()
@ 0x7f35e18bc4fe
mesos::internal::master::Master::Http::_markAgentGone()::$_64::operator()()
@ 0x7f35e18bd353
_ZN5cpp176invokeIZNK5mesos8internal6master6Master4Http14_markAgentGoneERKNS1_7SlaveIDEE4$_64JN7process6FutureIbEEEEEDTclclsr3stdE7forwardIT_Efp_Espclsr3stdE7forwardIT0_Efp0_EEEOSD_DpOSE_
@ 0x7f35e18bd2f7
_ZN6lambda8internal7PartialIZNK5mesos8internal6master6Master4Http14_markAgentGoneERKNS2_7SlaveIDEE4$_64JN7process6FutureIbEEEE13invoke_expandISA_St5tupleIJSD_EESG_IJEEJLm0EEEEDTclsr5cpp17E6invokeclsr3stdE7forwardIT_Efp_Espcl6expandclsr3stdE3getIXT2_EEclsr3stdE7forwardIT0_Efp0_EEclsr3stdE7forwardIT1_Efp2_EEEEOSJ_OSK_N5cpp1416integer_sequenceImJXspT2_EEEEOSL_
@ 0x7f35e18bd27d
_ZNO6lambda8internal7PartialIZNK5mesos8internal6master6Master4Http14_markAgentGoneERKNS2_7SlaveIDEE4$_64JN7process6FutureIbEEEEclIJEEEDTcl13invoke_expandclL_ZSt4moveIRSA_EONSt16remove_referenceIT_E4typeEOSJ_EdtdefpT1fEclL_ZSG_IRSt5tupleIJSD_EEESM_SN_EdtdefpT10bound_argsEcvN5cpp1416integer_sequenceImJLm0EEEE_Eclsr3stdE16forward_as_tuplespclsr3stdE7forwardIT_Efp_EEEEDpOSU_
@ 0x7f35e18bd21d
_ZN5cpp176invokeIN6lambda8internal7PartialIZNK5mesos8internal6master6Master4Http14_markAgentGoneERKNS4_7SlaveIDEE4$_64JN7process6FutureIbEEEEEJEEEDTclclsr3stdE7forwardIT_Efp_Espclsr3stdE7forwardIT0_Efp0_EEEOSH_DpOSI_
@ 0x7f35e18bd1f1 lambda::internal::Invoke<>::operator()<>()
@ 0x7f35e18bd1ae
_ZNO6lambda12CallableOnceIFvvEE10CallableFnINS_8internal7PartialIZNK5mesos8internal6master6Master4Http14_markAgentGoneERKNS6_7SlaveIDEE4$_64JN7process6FutureIbEEEEEEclEv
@ 0x55bf51f2829d _ZNO6lambda12CallableOnceIFvvEEclEv
@ 0x55bf52454065
_ZZN7process8internal8DispatchIvEclIN6lambda12CallableOnceIFvvEEEEEvRKNS_4UPIDEOT_ENKUlOS7_PNS_11ProcessBaseEE_clESD_SF_
@ 0x55bf52453ee7
_ZN5cpp176invokeIZN7process8internal8DispatchIvEclIN6lambda12CallableOnceIFvvEEEEEvRKNS1_4UPIDEOT_EUlOS9_PNS1_11ProcessBaseEE_JS9_SH_EEEDTclclsr3stdE7forwardISD_Efp_Espclsr3stdE7forwardIT0_Efp0_EEESE_DpOSJ_
@ 0x55bf52453e89
_ZN6lambda8internal7PartialIZN7process8internal8DispatchIvEclINS_12CallableOnceIFvvEEEEEvRKNS2_4UPIDEOT_EUlOS9_PNS2_11ProcessBaseEE_JS9_St12_PlaceholderILi1EEEE13invoke_expandISI_St5tupleIJS9_SK_EESN_IJOSH_EEJLm0ELm1EEEEDTclsr5cpp17E6invokeclsr3stdE7forwardISD_Efp_Espcl6expandclsr3stdE3getIXT2_EEclsr3stdE7forwardIT0_Efp0_EEclsr3stdE7forwardIT1_Efp2_EEEESE_OSR_N5cpp1416integer_sequenceImJXspT2_EEEEOSS_
@ 0x55bf52453ddb
_ZNO6lambda8internal7PartialIZN7process8internal8DispatchIvEclINS_12CallableOnceIFvvEEEEEvRKNS2_4UPIDEOT_EUlOS9_PNS2_11ProcessBaseEE_JS9_St12_PlaceholderILi1EEEEclIJSH_EEEDTcl13invoke_expandclL_ZSt4moveIRSI_EONSt16remove_referenceISD_E4typeESE_EdtdefpT1fEclL_ZSN_IRSt5tupleIJS9_SK_EEESS_SE_EdtdefpT10bound_argsEcvN5cpp1416integer_sequenceImJLm0ELm1EEEE_Eclsr3stdE16forward_as_tuplespclsr3stdE7forwardIT_Efp_EEEEDpOSZ_
@ 0x55bf52453d62
_ZN5cpp176invokeIN6lambda8internal7PartialIZN7process8internal8DispatchIvEclINS1_12CallableOnceIFvvEEEEEvRKNS4_4UPIDEOT_EUlOSB_PNS4_11ProcessBaseEE_JSB_St12_PlaceholderILi1EEEEEJSJ_EEEDTclclsr3stdE7forwardISF_Efp_Espclsr3stdE7forwardIT0_Efp0_EEESG_DpOSO_
@ 0x55bf52453d26
_ZN6lambda8internal6InvokeIvEclINS0_7PartialIZN7process8internal8DispatchIvEclINS_12CallableOnceIFvvEEEEEvRKNS5_4UPIDEOT_EUlOSC_PNS5_11ProcessBaseEE_JSC_St12_PlaceholderILi1EEEEEJSK_EEEvSH_DpOT0_
@ 0x55bf52453bda
_ZNO6lambda12CallableOnceIFvPN7process11ProcessBaseEEE10CallableFnINS_8internal7PartialIZNS1_8internal8DispatchIvEclINS0_IFvvEEEEEvRKNS1_4UPIDEOT_EUlOSE_S3_E_JSE_St12_PlaceholderILi1EEEEEEclEOS3_
@ 0x7f35e4c33d1b
_ZNO6lambda12CallableOnceIFvPN7process11ProcessBaseEEEclES3_
@ 0x7f35e4bf6bc9 process::ProcessBase::consume()
@ 0x7f35e4c72019
_ZNO7process13DispatchEvent7consumeEPNS_13EventConsumerE
@ 0x55bf51f23374 process::ProcessBase::serve()
@ 0x7f35e4bf36ff process::ProcessManager::resume()
@ 0x7f35e4c1c45b
process::ProcessManager::init_threads()::$_16::operator()()
@ 0x7f35e4c1c305
_ZNSt12_Bind_simpleIFZN7process14ProcessManager12init_threadsEvE4$_16vEE9_M_invokeIJEEEvSt12_Index_tupleIJXspT_EEE
@ 0x7f35e4c1c2d5 std::_Bind_simple<>::operator()()
@ 0x7f35e4c1c1c9 std::thread::_Impl<>::_M_run()
@ 0x7f35e510b6a0 execute_native_thread_routine
@ 0x7f35d8220e65 start_thread
```
Thanks,
Benjamin Mahler
