dev: remove transaction kv count limit#1828
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Signed-off-by: Shuaipeng Yu <jackysp@gmail.com>
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@tennix PTAL |
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@tennix PTAL |
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@DanielZhangQD PTAL |
| | `tidb.txnLocalLatchesCapacity` | 事务内存锁的容量，Hash 对应的 slot 数，会自动向上调整为 2 的指数倍。每个 slot 占 32 Bytes 内存。当写入数据的范围比较广时（如导数据），设置过小会导致变慢，性能下降。<br>如果 TiDB Operator 版本 > v1.0.0-beta.3，请通过 `tidb.config` 配置：<br>`[txn-local-latches]`<br>`capacity = 10240000` | `10240000` | | ||
| | `tidb.tokenLimit` | TiDB 并发执行会话的限制<br>如果 TiDB Operator 版本 > v1.0.0-beta.3，请通过 `tidb.config` 配置：<br>`token-limit = 1000` | `1000` | | ||
| | `tidb.memQuotaQuery` | TiDB 查询的内存限额，默认 32GB<br>如果 TiDB Operator 版本 > v1.0.0-beta.3，请通过 `tidb.config` 配置：<br>`mem-quota-query = 34359738368` | `34359738368` | | ||
| | `tidb.txnEntryCountLimit` | 一个事务中条目的数目限制。如果使用 TiKV 作为存储，则条目表示键/值对。**警告**：不要将该值设置得太大，否则会对 TiKV 集群造成很大影响。请仔细调整此配置<br>如果 TiDB Operator 版本 > v1.0.0-beta.3，请通过 `tidb.config` 配置：<br>`[performance]`<br>`txn-entry-count-limit = 300000` | `300000` | |
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TiDB Operator supports different versions of TiKV, we cannot just remove the config, suggest to make it clear in which TiKV version that this parameter does not need to set.
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I just change the docs for dev version, it means it will not work in the master branch. I think the Operator should follow the same rule.
DanielZhangQD
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Oct 29, 2019
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Confirmed with @jackysp , the removed parameters in tidb-cluster.md should not be exposed to users to configure, so it's OK to remove them from the doc.
LGTM
TomShawn
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Signed-off-by: Shuaipeng Yu jackysp@gmail.com
What is changed, added or deleted?
What is the related PR or file link(s)?
pingcap/tidb#11141
Which version does your change affect?
dev