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24 Commits

Author SHA1 Message Date
Shlomi Noach
23cb8ea7e9 Throttling & critical load 
- Added `--throttle-query` param (when returns > 0, throttling applies)
- Added `--critical-load`, similar to `--max-load` but implies panic and quit
- Recoded *-load as `LoadMap`
- More info on *-load throttle/panic
- `printStatus()` now gets printing heuristic. Always shows up on interactive `"status"`
- Fixed `change column` (aka rename) handling with quotes
- Removed legacy `mysqlbinlog` parser code
- Added tests
 2016-06-18 21:12:07 +02:00
Shlomi Noach
94f311ec7b supporting --panic-flag-file; when it exists - app panics and exits without cleanup 2016-06-17 11:40:08 +02:00
Shlomi Noach
836d0fe119 Supporting column rename 
- Parsing `alter` statement to catch `change old_name new_name ...` statements
- Auto deducing renamed columns
- When suspecting renamed columns, requesting explicit `--approve-renamed-columns` or `--skip-renamed-columns`
- updated tests
 2016-06-17 08:03:18 +02:00
Shlomi Noach
1226fa893f updated documentation re: cut-over, test-on-replica, migrate-on-replica 2016-06-15 12:31:38 +02:00
Shlomi Noach
96bc3804eb test-on-replica stops replication completely 2016-06-14 12:50:07 +02:00
Shlomi Noach
97adbf1ff8 - --cut-over no longer mandatory; default to safe 
- Removed `CutOverVoluntaryLock` and associated code
- Removed `CutOverUdfWait`
- `RenameTablesRollback()` first attempts an atomic swap
 2016-06-14 09:01:06 +02:00
Shlomi Noach
b8c7e046a1 test-on-replica to invoke cut-over swap 2016-06-10 11:15:11 +02:00
Shlomi Noach
087d1dd64d suuporting dynamic reconfiguration of max-load 2016-06-09 11:25:01 +02:00
Shlomi Noach
d30638f1cc updated version 2016-06-07 14:26:15 +02:00
Shlomi Noach
a6c21dcdb0 - --postpone-swap-tables-flag-file renamed to --postpone-cut-over-flag-file 
- More `README` documentation
- Added "throttle" documentation
 2016-06-07 14:05:25 +02:00
Shlomi Noach
fc00cb2289 adding interactive user commands 2016-06-07 11:59:17 +02:00
Shlomi Noach
bbd19abc9a - requiring --cut-over argument to be two-step|voluntary-lock (will add udf-wait once it is ready) 
The idea is that the user is forced to specify the cut-over type they wish to use, given that each type has some drawbacks.
- More data in status hint
- `select count(*)` is deferred till after we validate migration is valid. Also, it is skipped on `--noop`
 2016-06-06 12:33:05 +02:00
Shlomi Noach
b73eb5adfc updated version 2016-05-31 21:13:01 +02:00
Shlomi Noach
583d6d3147 accepting SIGHUP. Reloads configuration and marks as point of interest 2016-05-25 12:27:58 +02:00
Shlomi Noach
896f560dce after timeout: reconnecting as new replica; skipping queries correctly 2016-05-23 11:12:59 +02:00
Shlomi Noach
5375aa4f69 - Removed use of master_pos_wait(). It was unneccessary in the first place and introduced new problems. 
- Supporting `--allow-nullable-unique-key`
  - Tool will bail out if chosen key has nullable columns and the above is not provided
- Fixed `OriginalBinlogRowImage` comaprison (lower/upper case issue)
- Introduced reasonable streamer reconnect sleep time
 2016-05-20 12:52:14 +02:00
Shlomi Noach
9b54d0208f - Handling gomysql.replication connection timeouts: reconnecting on last known position 
- `printStatus()` takes ETA into account
- More info around `master_pos_wait()`
 2016-05-19 15:11:36 +02:00
Shlomi Noach
ec34a5ef75 master_pos_wait is now OK to return NULL. We only care if it returns with -1 2016-05-18 15:08:47 +02:00
Shlomi Noach
9f56a84b57 Fixing single-row table migration 
- `BuildUniqueKeyRangeEndPreparedQuery` supports `includeRangeStartValues` argument
- `applier` sends `this.migrationContext.GetIteration() == 0` as argument
 2016-05-18 14:53:09 +02:00
Shlomi Noach
df0a7513f5 - user/password provided in CLI override those in config file 
- user no longer defaults to .
- config is now part of Context, and is protected by mutex
 2016-05-17 15:35:44 +02:00
Shlomi Noach
41b0a4f317 supporting --version 2016-05-17 11:51:21 +02:00
Shlomi Noach
9d055dbda7 renaming to gh-ost 2016-05-16 11:09:17 +02:00
Shlomi Noach
96a8fd50c3 minor refactoring; fixed license comments 2016-03-24 15:11:56 +01:00
Shlomi Noach
1576119576 adding build file 2016-03-23 12:39:24 +01:00