Use MADV_DONTDUMP for innodb buffer pool
Bug #1092645 reported by
Raghavendra D Prabhu
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
MySQL Server |
Unknown
|
Unknown
|
||||
Percona Server moved to https://jira.percona.com/projects/PS | Status tracked in 5.7 | |||||
5.1 |
Won't Fix
|
Wishlist
|
Unassigned | |||
5.5 |
Triaged
|
Wishlist
|
Unassigned | |||
5.6 |
Triaged
|
Wishlist
|
Unassigned | |||
5.7 |
Triaged
|
Wishlist
|
Unassigned |
Bug Description
Linux 3.4 onwards supports MADV_DONTDUMP with madvise. This can be used to
mark the entire buffer pool as DONTDUMP. This is/will be really
helpful in situations with over-sized buffer pools in getting
smaller coredumps. I guess this can be made global variable,
however, I don't see many situations where one wants to
investigate the buffer pool contents themselves.
no longer affects: | mysql-server |
tags: | added: i35022 |
tags: | added: innodb upstream |
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See http:// crpppc19. epfl.ch/ cgi-bin/ man/man2html? 2+madvise for reference, for example.