forked from pingcap/docs-dm
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
cherry pick pingcap#220 to release-1.0
Signed-off-by: ti-srebot <[email protected]>
- Loading branch information
Showing
5 changed files
with
333 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,114 @@ | ||
--- | ||
title: dmctl 简介 | ||
summary: 了解如何使用 dmctl 管理数据同步任务。 | ||
aliases: ['/docs-cn/tidb-data-migration/dev/dmctl-introduction/','/docs-cn/tidb-data-migration/dev/manage-replication-tasks/'] | ||
--- | ||
|
||
# dmctl 简介 | ||
|
||
dmctl 是用来控制 DM 集群的命令行工具。对于用 DM-Ansible 部署的 DM 集群,dmctl 二进制文件路径为 `dm-ansible/dmctl`。 | ||
|
||
dmctl 同时支持交互模式和命令模式。 | ||
|
||
## dmctl 交互模式 | ||
|
||
进入交互模式,与 DM-master 进行交互: | ||
|
||
> **注意:** | ||
> | ||
> 交互模式下不具有 bash 的特性,比如不需要通过引号传递字符串参数而应当直接传递。 | ||
{{< copyable "shell-regular" >}} | ||
|
||
```bash | ||
./dmctl -master-addr 172.16.30.14:8261 | ||
``` | ||
|
||
``` | ||
Welcome to dmctl | ||
Release Version: v1.0.1 | ||
Git Commit Hash: e63c6cdebea0edcf2ef8c91d84cff4aaa5fc2df7 | ||
Git Branch: release-1.0 | ||
UTC Build Time: 2019-09-10 06:15:05 | ||
Go Version: go version go1.12 linux/amd64 | ||
» help | ||
DM control | ||
Usage: | ||
dmctl [command] | ||
Available Commands: | ||
check-task check the config file of the task | ||
help help about any command | ||
migrate-relay migrate DM-worker's relay unit | ||
offline-worker offline worker which has been closed | ||
operate-source create/update/stop/show upstream MySQL/MariaDB source | ||
pause-relay pause DM-worker's relay unit | ||
pause-task pause a specified running task | ||
purge-relay purge relay log files of the DM-worker according to the specified filename | ||
query-error query task error | ||
query-status query task status | ||
resume-relay resume DM-worker's relay unit | ||
resume-task resume a specified paused task | ||
show-ddl-locks show un-resolved DDL locks | ||
sql-inject inject (limited) SQLs into binlog replication unit as binlog events | ||
sql-replace replace SQLs matched by a specific binlog position (binlog-pos) or a SQL pattern (sql-pattern); each SQL must end with a semicolon | ||
sql-skip skip the binlog event matched by a specific binlog position (binlog-pos) or a SQL pattern (sql-pattern) | ||
start-task start a task as defined in the config file | ||
stop-task stop a specified task | ||
switch-relay-master switch the master server of the DM-worker's relay unit | ||
unlock-ddl-lock forcefully unlock DDL lock | ||
update-master-config update the config of the DM-master | ||
update-relay update the relay unit config of the DM-worker | ||
update-task update a task's config for routes, filters, or block-allow-list | ||
Flags: | ||
-h, --help help for dmctl | ||
-s, --source strings MySQL Source ID | ||
Use `dmctl [command] --help` to get more information about a command. | ||
``` | ||
|
||
## dmctl 命令模式 | ||
|
||
命令模式跟交互模式的区别是,执行命令时只需要在 dmctl 命令后紧接着执行任务操作,任务操作同交互模式的参数一致。 | ||
|
||
> **注意:** | ||
> | ||
> + 一条 dmctl 命令只能跟一个任务操作 | ||
> + 任务操作只能放在 dmctl 命令的最后 | ||
{{< copyable "shell-regular" >}} | ||
|
||
```bash | ||
./dmctl -master-addr 172.16.30.14:8261 start-task task.yaml | ||
./dmctl -master-addr 172.16.30.14:8261 stop-task task | ||
./dmctl -master-addr 172.16.30.14:8261 query-status | ||
``` | ||
|
||
``` | ||
Available Commands: | ||
check-task check-task <config-file> | ||
migrate-relay migrate-relay <source> <binlogName> <binlogPos> | ||
offline-worker offline-worker <name> <address> | ||
operate-source operate-source <operate-type> [config-file ...] [--print-sample-config] | ||
pause-relay pause-relay <-s source ...> | ||
pause-task pause-task [-s source ...] <task-name | task-file> | ||
purge-relay purge-relay <-s source> [--filename] [--sub-dir] | ||
query-error query-error [-s source ...] [task-name] | ||
query-status query-status [-s source ...] [task-name] [--more] | ||
resume-relay resume-relay <-s source ...> | ||
resume-task resume-task [-s source ...] <task-name | task-file> | ||
show-ddl-locks show-ddl-locks [-s source ...] [task-name] | ||
sql-inject sql-inject <-s source> <task-name> <sql1;sql2;> | ||
sql-replace sql-replace <-s source> [-b binlog-pos] [-p sql-pattern] [--sharding] <task-name> <sql1;sql2;> | ||
sql-skip sql-skip <-s source> [-b binlog-pos] [-p sql-pattern] [--sharding] <task-name> | ||
start-task start-task [-s source ...] <config-file> | ||
stop-task stop-task [-s source ...] <task-name | task-file> | ||
switch-relay-master switch-relay-master <-s source ...> | ||
unlock-ddl-lock unlock-ddl-lock [-s source ...] <lock-ID> | ||
update-master-config update-master-config <config-file> | ||
update-relay update-relay [-s source ...] <config-file> | ||
update-task update-task [-s source ...] <config-file> | ||
``` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,78 @@ | ||
--- | ||
title: 暂停数据同步任务 | ||
summary: 了解 TiDB Data Migration 如何暂停数据同步任务。 | ||
aliases: ['/docs-cn/tidb-data-migration/dev/pause-task/'] | ||
--- | ||
|
||
# 暂停数据同步任务 | ||
|
||
`pause-task` 命令用于暂停数据同步任务。 | ||
|
||
> **注意:** | ||
> | ||
> 有关 `pause-task` 与 `stop-task` 的区别如下: | ||
> | ||
> - 使用 `pause-task` 仅暂停同步任务的执行,但仍然会在内存中保留任务的状态信息等,且可通过 `query-status` 进行查询;使用 `stop-task` 会停止同步任务的执行,并移除内存中与该任务相关的信息,且不可再通过 `query-status` 进行查询,但不会移除已经写入到下游数据库中的数据以及其中的 checkpoint 等 `dm_meta` 信息。 | ||
> - 使用 `pause-task` 暂停同步任务期间,由于任务本身仍然存在,因此不能再启动同名的新任务,且会阻止对该任务所需 relay log 的清理;使用 `stop-task` 停止任务后,由于任务不再存在,因此可以再启动同名的新任务,且不会阻止对 relay log 的清理。 | ||
> - `pause-task` 一般用于临时暂停同步任务以排查问题等;`stop-task` 一般用于永久删除同步任务或通过与 `start-task` 配合以更新配置信息。 | ||
{{< copyable "" >}} | ||
|
||
```bash | ||
help pause-task | ||
``` | ||
|
||
``` | ||
pause a specified running task | ||
Usage: | ||
dmctl pause-task [-s source ...] <task-name | task-file> [flags] | ||
Flags: | ||
-h, --help help for pause-task | ||
Global Flags: | ||
-s, --source strings MySQL Source ID | ||
``` | ||
|
||
## 命令用法示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
pause-task [-s "mysql-replica-01"] task-name | ||
``` | ||
|
||
## 参数解释 | ||
|
||
- `-s`: | ||
- 可选 | ||
- 指定在特定的一个 MySQL 源上暂停数据同步任务的子任务 | ||
- 如果设置,则只暂停该任务在指定 MySQL 源上的子任务 | ||
- `task-name| task-file`: | ||
- 必选 | ||
- 指定任务名称或任务文件路径 | ||
|
||
## 返回结果示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
pause-task test | ||
``` | ||
|
||
``` | ||
{ | ||
"op": "Pause", | ||
"result": true, | ||
"msg": "", | ||
"sources": [ | ||
{ | ||
"result": true, | ||
"msg": "", | ||
"source": "mysql-replica-01", | ||
"worker": "worker1" | ||
} | ||
] | ||
} | ||
``` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,70 @@ | ||
--- | ||
title: 恢复数据同步任务 | ||
summary: 了解 TiDB Data Migration 如何恢复数据同步任务。 | ||
aliases: ['/docs-cn/tidb-data-migration/dev/resume-task/'] | ||
--- | ||
|
||
# 恢复数据同步任务 | ||
|
||
`resume-task` 命令用于恢复处于 `Paused` 状态的数据同步任务,通常用于在人为处理完造成同步任务暂停的故障后手动恢复同步任务。 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
help resume-task | ||
``` | ||
|
||
``` | ||
resume a specified paused task | ||
Usage: | ||
dmctl resume-task [-s source ...] <task-name | task-file> [flags] | ||
Flags: | ||
-h, --help help for resume-task | ||
Global Flags: | ||
-s, --source strings MySQL Source ID | ||
``` | ||
|
||
## 命令用法示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
resume-task [-s "mysql-replica-01"] task-name | ||
``` | ||
|
||
## 参数解释 | ||
|
||
- `-s`: | ||
- 可选 | ||
- 指定在特定的一个 MySQL 源上恢复数据同步任务的子任务 | ||
- 如果设置,则只恢复该任务在指定 MySQL 源上的子任务 | ||
- `task-name | task-file`: | ||
- 必选 | ||
- 指定任务名称或任务文件路径 | ||
|
||
## 返回结果示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
resume-task test | ||
``` | ||
|
||
``` | ||
{ | ||
"op": "Resume", | ||
"result": true, | ||
"msg": "", | ||
"sources": [ | ||
{ | ||
"result": true, | ||
"msg": "", | ||
"source": "mysql-replica-01", | ||
"worker": "worker1" | ||
} | ||
] | ||
} | ||
``` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,70 @@ | ||
--- | ||
title: 停止数据同步任务 | ||
summary: 了解 TiDB Data Migration 如何停止数据同步任务。 | ||
aliases: ['/docs-cn/tidb-data-migration/dev/stop-task/'] | ||
--- | ||
|
||
# 停止数据同步任务 | ||
|
||
`stop-task` 命令用于停止数据同步任务。有关 `stop-task` 与 `pause-task` 的区别,请参考[暂停数据同步任务](pause-task.md)中的相关说明。 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
help stop-task | ||
``` | ||
|
||
``` | ||
stop a specified task | ||
Usage: | ||
dmctl stop-task [-s source ...] <task-name | task-file> [flags] | ||
Flags: | ||
-h, --help help for stop-task | ||
Global Flags: | ||
-s, --source strings MySQL Source ID | ||
``` | ||
|
||
## 命令用法示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
stop-task [-s "mysql-replica-01"] task-name | ||
``` | ||
|
||
## 参数解释 | ||
|
||
- `-s`: | ||
- 可选 | ||
- 指定在特定的一个 MySQL 源上停止数据同步任务的子任务 | ||
- 如果设置,则只停止该任务在指定 MySQL 源上的子任务 | ||
- `task-name | task-file`: | ||
- 必选 | ||
- 指定任务名称或任务文件路径 | ||
|
||
## 返回结果示例 | ||
|
||
{{< copyable "" >}} | ||
|
||
```bash | ||
stop-task test | ||
``` | ||
|
||
``` | ||
{ | ||
"op": "Stop", | ||
"result": true, | ||
"msg": "", | ||
"sources": [ | ||
{ | ||
"result": true, | ||
"msg": "", | ||
"source": "mysql-replica-01", | ||
"worker": "worker1" | ||
} | ||
] | ||
} | ||
``` |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters