mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-12 09:22:05 +00:00
51 lines
2.0 KiB
Markdown
51 lines
2.0 KiB
Markdown
|
# system.distribution_queue {#system_tables-distribution_queue}
|
||
|
|
|
||
|
|
包含关于队列中要发送到分片的本地文件的信息. 这些本地文件包含通过以异步模式将新数据插入到Distributed表中而创建的新部分.
|
||
|
|
|
||
|
|
列信息:
|
||
|
|
|
||
|
|
- `database` ([String](../../sql-reference/data-types/string.md)) — 数据库名称.
|
||
|
|
|
||
|
|
- `table` ([String](../../sql-reference/data-types/string.md)) — 表名称.
|
||
|
|
|
||
|
|
- `data_path` ([String](../../sql-reference/data-types/string.md)) — 存放本地文件的文件夹的路径.
|
||
|
|
|
||
|
|
- `is_blocked` ([UInt8](../../sql-reference/data-types/int-uint.md)) — Flag表示是否阻止向服务器发送本地文件.
|
||
|
|
|
||
|
|
- `error_count` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 错误总数.
|
||
|
|
|
||
|
|
- `data_files` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 文件夹中的本地文件数.
|
||
|
|
|
||
|
|
- `data_compressed_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 本地文件中压缩数据的大小, 以字节为单位.
|
||
|
|
|
||
|
|
- `broken_data_files` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 被标记为损坏的文件数量(由于错误).
|
||
|
|
|
||
|
|
- `broken_data_compressed_bytes` ([UInt64](../../sql-reference/data-types/int-uint.md)) — 破碎文件中压缩数据的大小, 以字节为单位.
|
||
|
|
|
||
|
|
- `last_exception` ([String](../../sql-reference/data-types/string.md)) — 关于最近发生的错误的文本信息(如果有的话).
|
||
|
|
|
||
|
|
**示例**
|
||
|
|
|
||
|
|
``` sql
|
||
|
|
SELECT * FROM system.distribution_queue LIMIT 1 FORMAT Vertical;
|
||
|
|
```
|
||
|
|
|
||
|
|
``` text
|
||
|
|
Row 1:
|
||
|
|
──────
|
||
|
|
database: default
|
||
|
|
table: dist
|
||
|
|
data_path: ./store/268/268bc070-3aad-4b1a-9cf2-4987580161af/default@127%2E0%2E0%2E2:9000/
|
||
|
|
is_blocked: 1
|
||
|
|
error_count: 0
|
||
|
|
data_files: 1
|
||
|
|
data_compressed_bytes: 499
|
||
|
|
last_exception:
|
||
|
|
```
|
||
|
|
|
||
|
|
**另请参阅**
|
||
|
|
|
||
|
|
- [分布式表引擎](../../engines/table-engines/special/distributed.md)
|
||
|
|
|
||
|
|
[原始文章](https://clickhouse.com/docs/en/operations/system_tables/distribution_queue) <!--hide-->
|