attempt to kill slave thread can cause server hanging
Bug #1088267 reported by
Seppo Jaakola
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | ||
|---|---|---|---|---|---|---|
| MySQL patches by Codership | Status tracked in 5.6 | |||||
| 5.5 |
Fix Released
|
Low
|
Seppo Jaakola | |||
| 5.6 |
Fix Released
|
Low
|
Seppo Jaakola | |||
| Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC | Status tracked in 5.6 | |||||
| 5.5 |
Fix Released
|
Undecided
|
Unassigned | |||
| 5.6 |
Fix Released
|
Undecided
|
Unassigned | |||
Bug Description
High priority threads (slave threads, replaying threads, total order isolation threads) are not protected from kill signal and attempt to kill high priority thread can cause server to hang. One such a scenario is reported in MariaDB project: https:/
As a fix, high priority threads should be protected from kill.
| Changed in codership-mysql: | |
| importance: | Undecided → Low |
| assignee: | nobody → Seppo Jaakola (seppo-jaakola) |
| milestone: | none → 5.5.28-23.8 |
| Changed in codership-mysql: | |
| status: | New → In Progress |
| milestone: | 5.5.30-24.8 → 5.5.31-23.7.4 |
Revision history for this message
| Seppo Jaakola (seppo-jaakola) wrote | #1 |
| Changed in codership-mysql: | |
| status: | In Progress → Fix Committed |
| Changed in percona-xtradb-cluster: | |
| milestone: | none → 5.5.31-24.8 |
| Changed in percona-xtradb-cluster: | |
| status: | New → Fix Committed |
| tags: | added: codership |
| Changed in percona-xtradb-cluster: | |
| status: | Fix Committed → Fix Released |
| Changed in codership-mysql: | |
| status: | Fix Committed → Fix Released |
Revision history for this message
| Raghavendra D Prabhu (raghavendra-prabhu) wrote | #2 |
Revision history for this message
| Seppo Jaakola (seppo-jaakola) wrote | #3 |
Revision history for this message
| Seppo Jaakola (seppo-jaakola) wrote | #4 |
Revision history for this message
| Shahriyar Rzayev (rzayev-sehriyar) wrote | #5 |
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The fix will prevent kill command for appliers, aborter thread, replaying local connections or local connections in commit state
Fix pushed in revision: http://