Add Qcache_purged status variable
Bug #376492 reported by
Baron Schwartz
This bug affects 2 people
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Percona Server moved to https://jira.percona.com/projects/PS |
Triaged
|
Wishlist
|
Unassigned | ||
Bug Description
Add a variable (global + session) to count the number of queries purged from the cache after a data modification.
With the stock MySQL build, you can sort of calculate this by subtracting other variables from each other. But you can't see it per-query or per-session.
Then, this information should go into the slow query log, so we can see which queries result in a lot of cache turnover.
| Changed in percona-patches: | |
| importance: | Undecided → Wishlist |
| affects: | percona-patches → percona-server |
| Changed in percona-server: | |
| assignee: | nobody → Oleg Tsarev (tsarev) |
| status: | New → Won't Fix |
| milestone: | none → 5.1-11.1 |
| status: | Won't Fix → Triaged |
| Changed in percona-server: | |
| milestone: | 5.1-11.1 → 5.1-12.0 |
| Changed in percona-server: | |
| milestone: | 5.1.47-12.0 → 5.1-12.0 |
| Changed in percona-server: | |
| milestone: | 5.1-12.0 → 5.1-13.0 |
| Changed in percona-server: | |
| milestone: | 5.1-13.0 → none |
| Changed in percona-server: | |
| assignee: | Oleg Tsarev (tsarev) → nobody |
| tags: | added: slow-extended |
| tags: | added: query-cache-extended |
Revision history for this message
| Shahriyar Rzayev (rzayev-sehriyar) wrote | #1 |
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