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90 Commits

Author SHA1 Message Date
Shlomi Noach
2b595b15f2 Merge pull request #196 from github/concurrent-rowcount 
concurrent row-count
 2016-08-26 08:29:01 +02:00
Shlomi Noach
c7d88499af Merge branch 'master' into row-copy-complete 2016-08-25 10:15:32 +02:00
Shlomi Noach
1773f338c2 keeping track of delta rows 
on concurrent count(*) this means we re-apply delta onto new estimate
 2016-08-24 12:16:34 +02:00
Shlomi Noach
553f4c8d13 concurrent row-count 2016-08-24 11:39:44 +02:00
Shlomi Noach
56fd82a824 Merge pull request #174 from Wattpad/test-on-replica-manual-replication-control 
outstanding. Thank you!
 2016-08-24 09:12:21 +02:00
Paulo Bittencourt
6b21ade6d0 Check for --test-on-replica-skip-replica-stop in cutOver method 2016-08-23 18:34:10 -04:00
Shlomi Noach
56d09c4105 avoiding writing rows when rowcopy complete 2016-08-23 14:26:47 +02:00
Shlomi Noach
1021a83ac0 Merge pull request #189 from dveeden/feedback_on_wait 
thank you
 2016-08-23 09:50:50 +02:00
Daniël van Eeden
d8cfd49e2c Message about waiting should be INFO not DEBUG 2016-08-23 09:41:07 +02:00
Shlomi Noach
1376f0af23 fixed UPDATE dml on renamed column 2016-08-22 08:49:27 +02:00
Shlomi Noach
d8e30fcd85 fixed sup printing heuristic 2016-08-19 09:41:25 +02:00
Shlomi Noach
9752179723 interactive command: sup 2016-08-19 09:16:17 +02:00
Shlomi Noach
e6a02d81e0 Merge pull request #170 from github/nice-ratio-doc-clarification 
clarifying meaning of sleep-ratio
 2016-08-19 08:27:22 +02:00
Shlomi Noach
7e9f578e12 progress is 100% when 0/0 rows copied 2016-08-18 13:20:09 +02:00
Shlomi Noach
5dbd2e1c85 clarifying meaning of sleep-ratio 2016-08-18 13:13:51 +02:00
Shlomi Noach
8bf07c506f Merge pull request #147 from github/cleanup-socket-file 
Cleanup socket file
 2016-08-12 11:26:37 +02:00
Shlomi Noach
a46022f727 localized function name 2016-08-11 17:37:50 +02:00
Shlomi Noach
66ff5964ed relaxed check for log_slave_updates 2016-08-11 14:49:14 +02:00
Shlomi Noach
dd1ef29dac cleaning up socket file 2016-08-11 09:01:14 +02:00
Damian Gryski
e02a49449e all: use time.Since() instead of time.Now().Sub 
Patch created with:
    gofmt -w -r 'time.Now().Sub(a) -> time.Since(a)' .
 2016-08-02 08:38:56 -04:00
Shlomi Noach
46bbea2a32 ETA counting rows, fixed copy time on count 2016-07-29 10:40:23 +02:00
Shlomi Noach
25ce8b0758 status hint parameters using normalized names 2016-07-29 09:20:00 +02:00
Shlomi Noach
edacb8f959 Merge pull request #116 from github/nice-ratio-float 
nice-ratio is now float64
 2016-07-29 07:16:33 +02:00
Shlomi Noach
be8a023350 nice-ratio is now float64 2016-07-28 14:37:17 +02:00
Shlomi Noach
b99ce969c7 serving socket before counting table rows 2016-07-28 13:01:26 +02:00
Shlomi Noach
b548a6a172 adding human friendly hint re: throttling and binary logs 2016-07-27 10:45:22 +02:00
Shlomi Noach
dbcc0e09c7 status hint shows [set] next to existing flag files 2016-07-27 10:36:24 +02:00
Shlomi Noach
e900dae2e9 More informative information upon control-replicas lagging 2016-07-27 09:59:46 +02:00
Shlomi Noach
b53ee24a1f dynamic replication-lag-query 2016-07-26 14:14:25 +02:00
Shlomi Noach
5d23b72955 Merge pull request #107 from github/throttle-control-replicas 
fix to throttle-control-replicas check
 2016-07-26 12:13:22 +02:00
Shlomi Noach
7a70c24503 replica-migration cleanup; updating allEventsUpToLockProcessedInjectedFlag 2016-07-26 12:06:20 +02:00
Shlomi Noach
034ea7646a fix to throttle-control-replicas check 2016-07-26 11:51:24 +02:00
Shlomi Noach
ef59a866d8 Removed legacy 'safe cut-over' 
Now that we have the atomic cut-over, the former is redundant
 2016-07-16 08:12:19 -06:00
Shlomi Noach
8e46b4ceea max-lag-millis is dynamicly controllable 2016-07-13 09:44:00 +02:00
Shlomi Noach
c116d84acb added nice-ratio 2016-07-04 14:29:09 +02:00
Shlomi Noach
37e3c94c87 supporting 'unpostpone' command 2016-07-01 10:59:09 +02:00
Shlomi Noach
0191b2897d an atomic cut-over implementation, as per issue #82 2016-06-27 11:08:06 +02:00
Shlomi Noach
4f299f320e noop more verbose 2016-06-27 08:49:26 +02:00
Shlomi Noach
e0de69b028 a noop operation dumps SHOW CREATE TABLE 2016-06-22 12:39:13 +02:00
Shlomi Noach
5b20122957 on noop operation, drop ghost table at end 2016-06-22 10:48:17 +02:00
Shlomi Noach
96e8419a35 Solved cut-over stall; change of table names 
- Cutover would stall after `lock tables` wait-timeout due do waiting on a channel that would never be written to. This has been identified, reproduced, fixed, confirmed.
- Change of table names. Heres the story:
  - Because were testing this even while `pt-online-schema-change` is being used in production, the `_tbl_old` naming convention makes for a collision.
  - "old" table name is now `_tbl_del`, "del" standing for "delete"
  - ghost table name is now `_tbl_gho`
  - when issuing `--test-on-replica`, we keep the ghost table around, and were also briefly renaming original table to "old". Well this collides with a potentially existing "old" table on master (one that hasnt been dropped yet).
  `--test-on-replica` uses `_tbl_ght` (ghost-test)
  - similar problem with `--execute-on-replica`, and in this case the table doesnt stick around; calling it `_tbl_ghr` (ghost-replica)
  - changelog table is now `_tbl_ghc` (ghost-changelog)
  - To clarify, I dont want to go down the path of creating "old" tables with 2 or 3 or 4 or 5 or infinite leading underscored. I think this is very confusing and actually not operations friendly. Its OK that the migration will fail saying "hey, you ALREADY have an old table here, why dont you take care of it first", rather than create _yet_another_ `____tbl_old` table. Were always confused on which table it actually is that gets migrated, which is safe to `drop`, etc.
- just after rowcopy completing, just before cutover, during cutover: marking as point in time _of interest_ so as to increase logging frequency.
 2016-06-21 12:56:01 +02:00
Shlomi Noach
cd6b3c5e9e not throttling during cut-over operation 2016-06-21 09:21:58 +02:00
Shlomi Noach
80fcc05eb5 supporting interactive command throttle-control-replicas 2016-06-20 12:09:04 +02:00
Shlomi Noach
f0b012b238 support for 'panic' interactive command 2016-06-20 06:38:29 +02:00
Shlomi Noach
62b8a897e3 Retries, better visibility, documentation 
- Rowcopy time is bounded by copy end-time
- Retries are configurable via `--default-retries` (default: `60`)
- `migrator` notes the hostname
- `applier` and `inspector` note `impliedKey` (`@@hostname` and `@@port`)
- Added lots of code comments
- Adding documentation for "triggerless design"
 2016-06-19 17:55:37 +02:00
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
d38ff68a15 minor formatting 2016-06-17 11:41:10 +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
7d0ec9c9dc added --migrate-on-replica flag; runs complete migration on replica 2016-06-15 12:18:59 +02:00