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remove arbiter from v8.1.1 #18670

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Aug 27, 2024
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remove arbiter from v8.1.1 #18670

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1b9a03c
remove arbiter from v8.1.0
Oreoxmt Aug 22, 2024
966b82c
Discard changes to releases/release-8.1.0.md
qiancai Aug 22, 2024
a29024f
Update tidb-configuration-file.md
lilin90 Aug 22, 2024
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1 change: 0 additions & 1 deletion binary-package.md
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Expand Up @@ -64,7 +64,6 @@ The `TiDB-community-toolkit` package contains the following contents.
| binlogctl | New in v6.0.0 |
| sync_diff_inspector | |
| reparo | |
| arbiter | |
| server-{version}-linux-{arch}.tar.gz | New in v6.2.0 |
| grafana-{version}-linux-{arch}.tar.gz | New in v6.2.0 |
| alertmanager-{version}-linux-{arch}.tar.gz | New in v6.2.0 |
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2 changes: 1 addition & 1 deletion tidb-configuration-file.md
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Expand Up @@ -519,7 +519,7 @@ Configuration items related to performance.

- The size limit of a single transaction in TiDB.
- Default value: `104857600` (in bytes)
- In a single transaction, the total size of key-value records cannot exceed this value. The maximum value of this parameter is `1099511627776` (1 TB). Note that if you have used the binlog to serve the downstream consumer Kafka (such as the `arbiter` cluster), the value of this parameter must be no more than `1073741824` (1 GB). This is because 1 GB is the upper limit of a single message size that Kafka can process. Otherwise, an error is returned if this limit is exceeded.
- In a single transaction, the total size of key-value records cannot exceed this value. The maximum value of this parameter is `1099511627776` (1 TB). Note that if you have used the binlog to serve the downstream consumer Kafka, the value of this parameter must be no more than `1073741824` (1 GB). This is because 1 GB is the upper limit of a single message size that Kafka can process. Otherwise, an error is returned if this limit is exceeded.
- In TiDB v6.5.0 and later versions, this configuration is no longer recommended. The memory size of a transaction will be accumulated into the memory usage of the session, and the [`tidb_mem_quota_query`](/system-variables.md#tidb_mem_quota_query) variable will take effect when the session memory threshold is exceeded. To be compatible with previous versions, this configuration works as follows when you upgrade from an earlier version to TiDB v6.5.0 or later:
- If this configuration is not set or is set to the default value (`104857600`), after an upgrade, the memory size of a transaction will be accumulated into the memory usage of the session, and the `tidb_mem_quota_query` variable will take effect.
- If this configuration is not defaulted (`104857600`), it still takes effect and its behavior on controlling the size of a single transaction remains unchanged before and after the upgrade. This means that the memory size of the transaction is not controlled by the `tidb_mem_quota_query` variable.
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