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[BugFix] Capture query context when use its mem_tracker out of its lifetime (backport #49123) #49162

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merged 1 commit into from
Jul 31, 2024

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@mergify mergify bot commented Jul 30, 2024

Why I'm doing

RuntimeFilterWorker may handle a delay runtime filter of a pre-maturely terminating query, so a query context is destructed before the using its query-level mem_tacker in RuntimeFilterWorker. when this mem_tracker is undergoing
desctruction, its parent mem_tracker (e.g. resource_group-level mem_tracker) would be accessed, however, the resource-group-level mem trackers has already been destructed when the resource group is dropped or altered.

Using query-level mem-tracker beyond query context's life time may lead to BE's crash as follows:

*** Aborted at 1722298201 (unix time) try "date -d @1722298201" if you are using GNU date ***
PC: @          0x80cfb60 (unknown)
*** SIGSEGV (@0x0) received by PID 41980 (TID 0x7f0a2fbea700) from PID 0; stack trace: ***
    @          0x5c32442 google::(anonymous namespace)::FailureSignalHandler()
    @     0x7f0da11847f2 os::Linux::chained_handler()
    @     0x7f0da118b5c6 JVM_handle_linux_signal
    @     0x7f0da1181683 signalHandler()
    @     0x7f0da064c630 (unknown)
    @          0x80cfb60 (unknown)
    @          0x4a588d8 starrocks::MemTracker::~MemTracker()
    @          0x2cb1e8a std::_Sp_counted_base<>::_M_release()
    @          0x4ac1d87 starrocks::RuntimeFilterWorker::_receive_total_runtime_filter()
    @          0x4ac4266 starrocks::RuntimeFilterWorker::execute()
    @          0x8146cb0 execute_native_thread_routine
    @     0x7f0da0644ea5 start_thread
    @     0x7f0d9fc5f98d __clone
    @                0x0 (unknown)

What I'm doing:

We need capture query context to prevent it from being destructed, and when a dropping resource_group is used by outstanding query contexts, it would be delayed to be dropped until all its outstanding query contexts are destructed.

Fixes #issue

What type of PR is this:

  • BugFix
  • Feature
  • Enhancement
  • Refactor
  • UT
  • Doc
  • Tool

Does this PR entail a change in behavior?

  • Yes, this PR will result in a change in behavior.
  • No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

  • Interface/UI changes: syntax, type conversion, expression evaluation, display information
  • Parameter changes: default values, similar parameters but with different default values
  • Policy changes: use new policy to replace old one, functionality automatically enabled
  • Feature removed
  • Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

  • I have added test cases for my bug fix or my new feature
  • This pr needs user documentation (for new or modified features or behaviors)
    • I have added documentation for my new feature or new function
  • This is a backport pr

Bugfix cherry-pick branch check:

  • I have checked the version labels which the pr will be auto-backported to the target branch
    • 3.3
    • 3.2
    • 3.1
    • 3.0
    • 2.5

This is an automatic backport of pull request #49123 done by [Mergify](https://mergify.com). ## Why I'm doing RuntimeFilterWorker may handle a delay runtime filter of a pre-maturely terminating query, so a query context is destructed before the using its query-level mem_tacker in RuntimeFilterWorker. when this mem_tracker is undergoing desctruction, its parent mem_tracker (e.g. resource_group-level mem_tracker) would be accessed, however, the resource-group-level mem trackers has already been destructed when the resource group is dropped or altered.

Using query-level mem-tracker beyond query context's life time may lead to BE's crash as follows:

*** Aborted at 1722298201 (unix time) try "date -d @1722298201" if you are using GNU date ***
PC: @          0x80cfb60 (unknown)
*** SIGSEGV (@0x0) received by PID 41980 (TID 0x7f0a2fbea700) from PID 0; stack trace: ***
    @          0x5c32442 google::(anonymous namespace)::FailureSignalHandler()
    @     0x7f0da11847f2 os::Linux::chained_handler()
    @     0x7f0da118b5c6 JVM_handle_linux_signal
    @     0x7f0da1181683 signalHandler()
    @     0x7f0da064c630 (unknown)
    @          0x80cfb60 (unknown)
    @          0x4a588d8 starrocks::MemTracker::~MemTracker()
    @          0x2cb1e8a std::_Sp_counted_base<>::_M_release()
    @          0x4ac1d87 starrocks::RuntimeFilterWorker::_receive_total_runtime_filter()
    @          0x4ac4266 starrocks::RuntimeFilterWorker::execute()
    @          0x8146cb0 execute_native_thread_routine
    @     0x7f0da0644ea5 start_thread
    @     0x7f0d9fc5f98d __clone
    @                0x0 (unknown)

What I'm doing:

We need capture query context to prevent it from being destructed, and when a dropping resource_group is used by outstanding query contexts, it would be delayed to be dropped until all its outstanding query contexts are destructed.

Fixes #issue

What type of PR is this:

  • BugFix
  • Feature
  • Enhancement
  • Refactor
  • UT
  • Doc
  • Tool

Does this PR entail a change in behavior?

  • Yes, this PR will result in a change in behavior.
  • No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

  • Interface/UI changes: syntax, type conversion, expression evaluation, display information
  • Parameter changes: default values, similar parameters but with different default values
  • Policy changes: use new policy to replace old one, functionality automatically enabled
  • Feature removed
  • Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

  • I have added test cases for my bug fix or my new feature
  • This pr needs user documentation (for new or modified features or behaviors)
    • I have added documentation for my new feature or new function
  • This is a backport pr

@wanpengfei-git wanpengfei-git merged commit 511aaf2 into branch-3.2 Jul 31, 2024
33 checks passed
@wanpengfei-git wanpengfei-git deleted the mergify/bp/branch-3.2/pr-49123 branch July 31, 2024 02:26
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