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Merge pull request pingcap#231 from CaitinChen/fix-invalid-link
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Fix a broken link
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CaitinChen committed Jun 6, 2019
2 parents 5ea777e + 1520c1d commit 8a94d91
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Expand Up @@ -69,7 +69,7 @@ logo: /images/blog-cn/customers/mobike-logo.png

解决方案:

- 通过设置 [`SHARD_ROW_ID_BITS`](https://github.com/pingcap/docs/blob/master/sql/tidb-specific.md#shard_row_id_bits),可以把 rowid 打散写入多个不同的 Region,缓解写入热点问题:`ALTER TABLE table_name SHARD_ROW_ID_BITS = 8;`
- 通过设置 [`SHARD_ROW_ID_BITS`](https://pingcap.com/docs-cn/dev/reference/configuration/tidb-server/tidb-specific-variables/#shard_row_id_bits),可以把 rowid 打散写入多个不同的 Region,缓解写入热点问题:`ALTER TABLE table_name SHARD_ROW_ID_BITS = 8;`

**2.3.3 异地机房由于网络延迟相对比较高,设计中赋予它的主要职责是灾备,并不提供服务。曾经出现过一次大约持续 10s 的网络抖动,TiDB 端发现大量的 no Leader 日志,Region follower 节点出现网络隔离情况,隔离节点 term 自增,重新接入集群时候会导致 Region 重新选主,较长时间的网络波动,会让上面的选主发生多次,而选主过程中无法提供正常服务,最后可能导致雪崩。**

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