[MCOL-5565] Queries stuck in MDB waiting for an answer from PP - Jira

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Details

Type: Bug
Status: Closed (View Workflow)
Priority: Critical
Resolution: Fixed
Affects Version/s: 23.02.4
Fix Version/s: 23.10.1, 23.02.7
Component/s: MDB Plugin, PrimProc
Labels:
- triage

Sprint:
2023-10, 2023-11, 2023-12

Description

PrimProc runs multiple parts of a query called primitive jobs.
There is a problem that causes primitive in-memory representation to become corrupted so it cannot be stopped and doesn't go away from PP execution thread pool. When there is a certain number of such primitives it is enough to get busy all worker threads in PP.
Effectively this looks like all future query are stuck.
The issue hits our CI. One of the customers also suffers from the same issue.

Attachments

Issue Links

relates to

MCOL-5801 Queries Hung | PrimProc <-> Storagemanager | Unknown error code in response

Open

MCOL-5824 Automatic Long Query Killer

Needs Feedback

MCOL-5559 Shmem segment remap causes SEGV in ExtentMapIndexImpl::find

Closed

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(8 mentioned in)

Activity

People

Assignee:: Roman

Reporter:: Roman

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Dates

Created:: 2023-08-31 19:12

Updated:: 2024-10-29 16:19

Resolved:: 2024-02-19 13:35

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