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*: update FAQ of tools #5031
*: update FAQ of tools #5031
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PTAL @3pointer |
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LGTM
ticdc/troubleshoot-ticdc.md
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## TiCDC 启动任务 start-ts 与当前时间差距较大,运行过程中同步中断,出现错误 [CDC:ErrBufferReachLimit] | ||
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在 4.0.9 之后可以尝试开启 unified sorter 特性进行同步;或者可以使用 BR 工具进行一次增量备份和恢复,然后从新的时间点开启 TiCDC 同步任务。TiCDC 将会在后续版本进行优化 |
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Please add a link about the unified sorter feature.
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#4959 is not merged yet.
tidb-lightning/tidb-lightning-faq.md
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## TiDB Lightning 报错 `could not find first pair, this shouldn't happen` | ||
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检查日志中是否存在其他错误,并根据错误作出相应调整。比如对 `too many open files` 错误,就需要调大系统文件的描述符个数(建议 1000000 个)。 |
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检查日志中是否存在其他错误,并根据错误作出相应调整。比如对 `too many open files` 错误,就需要调大系统文件的描述符个数(建议 1000000 个)。 | |
此错误是在遍历本地排序的文件时出现异常,比较可能是由于 lightning 打开的文件数量超过系统的上。在 linux 系统中,可以使用 `ulimit -n` 命令确认此值是否过小。建议在 lightning 导入期间将此设置调整为 1000000(`ulimit -n 1000000`). |
@overvenus, @TomShawn, @ti-srebot, @glorv, @3pointer, PTAL. |
@lance6716, please update your pull request. |
@, @, @, @, @, @, @, @, @, @, @, @, @, @, @3pointer, PTAL. |
@3pointer, PTAL. |
@lance6716, please update your pull request. |
@3pointer, PTAL. |
@lance6716, please update your pull request. |
@lance6716, please update your pull request. |
/label translation/done |
/unlabel translation/doing |
Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
cherry pick to release-4.0 in PR #5140 |
Signed-off-by: ti-srebot <ti-srebot@pingcap.com> Co-authored-by: lance6716 <lance6716@gmail.com>
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## TiDB Lightning 报错 `could not find first pair, this shouldn't happen` | ||
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报错原因是遍历本地排序的文件时出现异常,可能在 lightning 打开的文件数量超过系统的上限时发生。在 linux 系统中,可以使用 `ulimit -n` 命令确认此值是否过小。建议在 lightning 导入期间将此设置调整为 1000000(`ulimit -n 1000000`)。 |
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First-time contributors' checklist
What is changed, added or deleted? (Required)
Which TiDB version(s) do your changes apply to? (Required)
What is the related PR or file link(s)?
Do your changes match any of the following descriptions?