github/gh-ost

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GitHub's Online Schema-migration Tool for MySQL

Stars: 13.6k
Forks: 1.4k
Open beginner issues: 0
Indexed issues: 260
Avg merge: 2h 31m
Merged PRs (30d): 4

Dominant language: Go
License: MIT
Last GitHub push: Aug 28, 2026
Latest indexed: Sep 16, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

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260 open issues indexed

hello, in version 1.0.40, I find you commit code with "applier always uses UTC", can you explain about this commit,in my db ,I find my column of timestamp type was changed error Open

github/gh-ost#466 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Data Truncated for column 'X' on Binlog Updates Open

github/gh-ost#469 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Why limit CutOverLockTimeoutSeconds to 10 seconds? Open

github/gh-ost#474 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Row counts not matching at cutover and then cutover continually fails and loops Open

github/gh-ost#475 · 37 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
FR be able to run several alter table in series (or pass a create table statement) Open

github/gh-ost#476 · 10 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
fail in case of adding unique index by default Open

github/gh-ost#477 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Test gh-ost on master, the parameters have been added parameters output invalid Open

github/gh-ost#493 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
_ghc table has been dropped before copying ends Open

github/gh-ost#495 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Modified vendor code in `gcfg` Open

github/gh-ost#501 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
gh-ost suddenly exited while waiting for cut over phase Open

github/gh-ost#502 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
foreign key implementation Open

github/gh-ost#507 · 10 comments · 2 reactions · 0 assignees · Indexed Sep 16, 2026
Mention that a potentially conflicting migration is already active, when you do a non-execute ghost-run. Open

enhancement

github/gh-ost#511 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add support for SSL Open

enhancement

github/gh-ost#521 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
that i can‘t build gh-ost successfullly Open

github/gh-ost#522 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
The TRIGGER grant in a trigger-less design Open

github/gh-ost#529 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Incorrect datetime value: '1970-01-01 00:00:00' for column 'create_time' Open

data-integrity

github/gh-ost#538 · 17 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
'lock in share mode' is for what? usefull? Open

github/gh-ost#542 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Specify postpone-cut-over-flag-file, but the file did't created Open

github/gh-ost#543 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Using Ghost Table for migration Open

github/gh-ost#544 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
getting Column 'message_id' cannot be null - while we have no null values in table. Open

github/gh-ost#550 · 23 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Can we start copying data from the middle of the original table. Open

github/gh-ost#552 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Is it bad practice to run gh-ost on a replica? Open

question

github/gh-ost#554 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Question: Why Is the "Connect to Replica" mode preferred? Open

question

github/gh-ost#566 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
ERROR Unable to acquire lock gh-ost.3726786.lock Open

github/gh-ost#569 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
gh-ost exits after issuing cutover Open

github/gh-ost#574 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Column drops with Rails Open

question

github/gh-ost#579 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Online schema change in MySQL with Master-Master setup Open

github/gh-ost#583 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
binlogstreamer.go:47: [error] close sync with err: sync is been closing... Open

github/gh-ost#597 · 32 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
write: broken pipe and _gho doesn't exist Open

github/gh-ost#598 · 13 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Error 1364 Open

github/gh-ost#601 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
ERROR value args count differs from table column count in BuildDMLUpdateQuery Open

github/gh-ost#602 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Use gh-ost sync data Open

github/gh-ost#605 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
binlogsyncer.go connection was bad Open

github/gh-ost#609 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Socket not cleaned up after failed transfer Open

github/gh-ost#614 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Cut-over stage run into an error always, but not metadata lock Open

github/gh-ost#618 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
close sync with err: data len 166 < expected 3587 Open

github/gh-ost#623 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Got "Timeout while waiting for events up to lock" and unable to proceed with cutover. Open

github/gh-ost#625 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
gh-ost not making progress on binlog position after being throttled? Open

github/gh-ost#626 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Why gh-ost just apply rows from binlog and not copy rows from old table? Open

github/gh-ost#628 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
gh-ost doesn't mind if you purge binary logs.... Open

data-integrity priority

github/gh-ost#629 · 6 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
port check on @@global.port prevents execution on 1st generation GCP instances. Open

github/gh-ost#632 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
Issue with SET field Open

github/gh-ost#637 · 1 comment · 2 reactions · 0 assignees · Indexed Sep 16, 2026
"ERROR parsing time" message Open

github/gh-ost#638 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
--test-on-replica should not write to binlogs Open

github/gh-ost#646 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Problem with replaying UPDATE or DELETE using key of BINARY(N) ending in `00`'s Open

data-integrity

github/gh-ost#654 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
why "ERROR Error 1146: Table 'account_proxy._sms_validate_code_ghc' doesn't exist" ? Open

github/gh-ost#657 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
gh-ost is not properly identifying column types Open

github/gh-ost#660 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Support for Tablespace Outside of the Data Directory Open

enhancement

github/gh-ost#676 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 16, 2026
can i add column to primary key one time Open

question

github/gh-ost#678 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
ERROR Error 1146: Table 'Test._Test_gho' doesn't exist; query= Open

github/gh-ost#683 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026

github/gh-ost

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