DM咨询

syzhere · 2019 年8 月 29 日 11:11

我们的dm同步任务今天出现大量invalid connection，dm没有进行自动重试，只能手动停止然后重启。出现过几次这种情况，都没有进行重试。

版本 Release Version: v1.0.0-alpha-30-g76218b6 Git Commit Hash: 76218b641f3f511aca723ad07599ea3ed8df1bcb Git Branch: master UTC Build Time: 2019-03-14 03:47:23 Go Version: go version go1.12 linux/amd64

这个在v1.0.0-rc.1版本有改善吗？

小王同学 · 2019 年8 月 29 日 11:54

可以看下 v1.0.0-rc1 的相关改善，已支持重试任务。

github.com

pingcap/dm/blob/v1.0.0-rc.1/CHANGELOG.md#10-rc1-2019-07-01

# DM Changelog

All notable changes to this project will be documented in this file.

## [1.0-rc.1] 2019-07-01

- Remove the restriction of "the next shard DDL statement cannot be executed unless the current shard DDL operation is completely finished in shard merge scene for binlog replication" [#177](https://github.com/pingcap/dm/pull/177)
- Support retry task on the `invalid connection` error for binlog replication [#66](https://github.com/pingcap/dm/pull/66)
- Support generating `-schema-create.sql` files automatically for full migration [#186](https://github.com/pingcap/dm/pull/186)
- Use [TiDB SQL Parser](https://github.com/pingcap/parser) to parse and restore DDL statements in binlog query events, and remove the `use db` statement when replicating to downstream [#54](https://github.com/pingcap/dm/pull/54)
- Support migrating tables with generated column for full migration and binlog replication [#42](https://github.com/pingcap/dm/pull/42) [#60](https://github.com/pingcap/dm/pull/60)
- Support appending the task name as a suffix to the dumped data directory (`dir` in the task configuration file) for full migration [#100](https://github.com/pingcap/dm/pull/100)
- Support resuming tasks automatically after the DM-worker process restarted [#88](https://github.com/pingcap/dm/pull/88) [#116](https://github.com/pingcap/dm/pull/116)
- Support skipping pre-check items when starting tasks [#65](https://github.com/pingcap/dm/pull/65)
- Support case-insensitive in binlog event type of Binlog Event Filter rules [#188](https://github.com/pingcap/dm/pull/188)
- Optimize relay log mechanism to improve compatibility with upstream MySQL/MariaDB [#92](https://github.com/pingcap/dm/pull/92) [#108](https://github.com/pingcap/dm/pull/108) [#117](https://github.com/pingcap/dm/pull/117) [#140](https://github.com/pingcap/dm/pull/140) [#171](https://github.com/pingcap/dm/pull/171)
- Optimize RPC framework to limit the concurrency between DM-master and DM-worker [#157](https://github.com/pingcap/dm/pull/157)
- Redirect the log of mydumper into the log of DM-worker [#93](https://github.com/pingcap/dm/pull/93)
- Support using `--print-sample-config` command flag to show the sample config of DM-worker and DM-master [#28](https://github.com/pingcap/dm/pull/28)
- Support showing the status of sharding DDL replication in the Grafana dashboard and optimize the dashboard [#96](https://github.com/pingcap/dm/pull/96) [#101](https://github.com/pingcap/dm/pull/101) [#120](https://github.com/pingcap/dm/pull/120)

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syzhere · 2019 年8 月 29 日 12:15

嗯，看到了，多谢

张鱼小丸子-PingCAP · 2019 年8 月 29 日 12:39

如果觉得别人的回答有帮助，可以标记为解决方案✅这样可以帮助其他有同样问题的人快速找到答案～

system · 2022 年10 月 31 日 19:03

此话题已在最后回复的 1 分钟后被自动关闭。不再允许新回复。