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| author | Carl Meyer <carl@oddbird.net> | 2012-09-19 10:06:53 -0600 |
|---|---|---|
| committer | Carl Meyer <carl@oddbird.net> | 2012-09-19 10:06:53 -0600 |
| commit | 901af865505310a70dd02ea5b3becbf45819b652 (patch) | |
| tree | 81ac520a776fb9aaa12f831a23c202ce5b19baf6 /docs | |
| parent | 44767f2caf028d89e1a283d04bb552d0e18bb936 (diff) | |
Fixed #16865 -- Made get_or_create use read database for initial get query.
Thanks Rick van Hattem for the report and trbs for the patch.
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/releases/1.5.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/releases/1.5.txt b/docs/releases/1.5.txt index 26b6ad1bfa..84c37af9ee 100644 --- a/docs/releases/1.5.txt +++ b/docs/releases/1.5.txt @@ -338,6 +338,15 @@ Miscellaneous needs. The new default value is `0666` (octal) and the current umask value is first masked out. +* In a multi-database situation, ``get_or_create()`` will now use a read + database for the initial ``get`` attempt (previously, it used only the write + database for all queries). This change reduces load on the write (master) + database, in exchange for slightly more frequent false-negatives on the + initial ``get`` due to replication lag. In those cases the subsequent insert + will still go to the master and fail, after which the existing object will be + fetched from the master. + + Features deprecated in 1.5 ========================== |