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dm: add a configuration to adjust safe mode duration when dm task abnormal reboot #10555

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Sep 15, 2022
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dm: add a configuration to adjust safe mode duration when dm task abnormal reboot #10555

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okJiang Jul 18, 2022
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okJiang Jul 18, 2022
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ran-huang Jul 19, 2022
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ran-huang Jul 19, 2022
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okJiang Sep 15, 2022
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Update dm/task-configuration-file-full.md 
Co-authored-by: xixirangrang <hfxsd@hotmail.com>
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@ran-huang @hfxsd
ran-huang and hfxsd authored Jul 19, 2022
commit 37fba10bc9f5b463ae046cb6569ab37e47dc4c0f
2 changes: 1 addition & 1 deletion dm/task-configuration-file-full.md
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Expand Up @@ -129,7 +129,7 @@ syncers: # sync 处理单元的运行配置参数
# 自动安全模式的持续时间
# 如不设置或者设置为 ""，则默认为 `checkpoint-flush-interval`（默认为 30s）的两倍，即 60s。
# 如设置为 "0s"，则在 DM 自动进入安全模式的时候报错。
# 如设置为正常值，例如 "1m30s"，则在该任务异常暂停、记录 safemode_exit_point 失败、或是 DM 进程异常退出时，把安全模式持续时间调整为 1 分 30 秒。详情可见 https://docs.pingcap.com/zh/tidb/stable/dm-safe-mode#自动开启。
# 如设置为正常值，例如 "1m30s"，则在该任务异常暂停、记录 safemode_exit_point 失败、或是 DM 进程异常退出时，把安全模式持续时间调整为 1 分 30 秒。详情可见[自动开启安全模式](https://docs.pingcap.com/zh/tidb/stable/dm-safe-mode#自动开启) 。
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safe-mode-duration: "60s"
# 设置为 true，DM 会在不增加延迟的情况下，尽可能地将上游对同一条数据的多次操作压缩成一次操作。
# 如 INSERT INTO tb(a,b) VALUES(1,1); UPDATE tb SET b=11 WHERE a=1; 会被压缩成 INSERT INTO tb(a,b) VALUES(1,11); 其中 a 为主键
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