lp:~laurynas-biveinis/percona-server/tokudb-non-blocking-optimize
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- Laurynas Biveinis (community): Disapprove
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Diff: 85 lines (+28/-3)4 files modifiedsql/handler.cc (+10/-1)
sql/handler.h (+6/-0)
sql/mdl.cc (+4/-2)
sql/sql_admin.cc (+8/-0)
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Branch information
- Owner:
- Laurynas Biveinis
- Status:
- Development
Recent revisions
- 535. By Laurynas Biveinis
-
Add support for storage engines with online OPTIMIZE, implementing
https://blueprints. launchpad. net/percona- server/ +spec/allow- writes- during- table-optimizat ion. The implementation is based on a combination of
https://github. com/Tokutek/ mysql56/ commit/ 1a321b6ae70f76d a3dc76c944014ba ab2b7ce1ae
and
https://github. com/Tokutek/ mysql56/ commit/ a701cea6de67c71 3d418a319a6a848 6da8e07ff2 It adds a new handler table flag HA_CAN_
WRITE_DURING_ OPTIMIZE. While
executing OPTIMIZE, after opening the tables, the presence of this
flag is checked and the MDL lock is downgraded from
MDL_SHARED_NO_READ_ WRITE to MDL_SHARED_WRITE, and the closing of any
open instances of this table for other connections is skipped.Adjust handler:
:ha_optimize( ) to assert that HA_ADMIN_TRY_ALTER return
value is incompatible with HA_CAN_WRITE_DURING_ OPTIMIZE. Adjust MDL_ticker:
:downgrade_ lock() to allow downgrades from
MDL_SHARED_NO_READ_ WRITE.
Branch metadata
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- Branch format 7
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- Bazaar repository format 2a (needs bzr 1.16 or later)
- Stacked on:
- lp:percona-server/5.6
