[MDEV-24171] index_online_log is incorrectly instrumented as rw-lock, not mutex - Jira

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.2(EOL), 10.3(EOL), 10.4(EOL), 10.5
Fix Version/s: 10.2.37, 10.3.28, 10.4.18, 10.5.9
Component/s: Performance Schema, Storage Engine - InnoDB
Labels:
None

Description

While working on ~~MDEV-24167~~, I noticed that index_online_log is being instrumented as rw-lock, instead of being instrumented as a mutex. The exact consequences of this are unknown. The row_lock_t::mutex is only used during ALTER ONLINE TABLE when concurrent DML is being buffered or applied.

Attachments

Issue Links

blocks

MDEV-24167 InnoDB unnecessarily uses complex rw-lock implementation

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Activity

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Marko Mäkelä created issue - 2020-11-09 07:38

Marko Mäkelä made changes - 2020-11-09 07:38

Field	Original Value	New Value
Link		This issue blocks ~~MDEV-24167~~ [ ~~MDEV-24167~~ ]

Marko Mäkelä made changes - 2020-11-10 06:55

issue.field.resolutiondate

2020-11-10 06:55:51.0

2020-11-10 06:55:51.323

Marko Mäkelä made changes - 2020-11-10 06:55

Fix Version/s		10.2.37 [ 25112 ]
Fix Version/s		10.3.28 [ 25111 ]
Fix Version/s		10.4.18 [ 25110 ]
Fix Version/s		10.5.9 [ 25109 ]
Fix Version/s	10.2 [ 14601 ]
Fix Version/s	10.3 [ 22126 ]
Fix Version/s	10.4 [ 22408 ]
Fix Version/s	10.5 [ 23123 ]
Resolution		Fixed [ 1 ]
Status	Open [ 1 ]	Closed [ 6 ]

Sergei Golubchik made changes - 2021-12-06 21:52

Workflow

MariaDB v3 [ 115554 ]

MariaDB v4 [ 158568 ]

People

Assignee:: Marko Mäkelä

Reporter:: Marko Mäkelä

Votes:: 0 Vote for this issue

Watchers:: 1 Start watching this issue

Dates

Created:: 2020-11-09 07:38

Updated:: 2020-11-10 06:55

Resolved:: 2020-11-10 06:55

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