[Feature](show) show backend config using ShowStmt #36525
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Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
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TPC-H: Total hot run time: 39959 ms |
TPC-DS: Total hot run time: 174356 ms |
ClickBench: Total hot run time: 30.98 s |
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zclllyybb
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Jun 22, 2024
ShowStmt does not differentiate between old and new optimizers，so it works with both. |
zclllyybb
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Jun 24, 2024
should what |
The NereidsParser can't parse all ShowStmt (e.g., |
I think so. But if all ShowStmt are not supported now for nereids, it's also good for this pr. The optimizer group may look forward for nereids compatible in the future |
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I have optimized the implementation and now it supports nereids. |
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fe/fe-core/src/main/java/org/apache/doris/analysis/ShowConfigStmt.java
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TPC-H: Total hot run time: 38478 ms |
TPC-DS: Total hot run time: 190313 ms |
ClickBench: Total hot run time: 31.24 s |
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Currently, Doris only supports accessing backend configurations via HTTP
APIs. To enhance this functionality, I have added some syntax extensions
to allow displaying backend configurations using SQL commands.
The SQL syntax for displaying backend configurations is similar to that
for displaying frontend configurations:
1. Display backend configurations matching a pattern:
This statement will display all active backend configurations that match
the specified pattern.
show backend config like ${pattern}
3. Display backend configurations for a specific BE using the backend ID
show backend config from ${beId}
4. Use both a pattern and a backend ID:
show backend config like ${pattern} from ${backendID}
The output of these statements consists of 6 columns: BE ID, BE host IP,
configuration key, configuration value, configuration type, and whether
it is mutable or not.
+-----------+---------------+---------+-------+---------+-----------+
| BackendId | Host | Key | Value | Type | IsMutable |
+-----------+---------------+---------+-------+---------+-----------+
| 10001 | xx.xx.xxx.xxx | be_port | 9060 | int32_t | false |
+-----------+---------------+---------+-------+---------+-----------+
This provides an additional way to access backend configurations within
Doris.
Co-authored-by: duanxujian <duanxujian@jd.com>
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Proposed changes
Issue Number: close #36445
Currently, Doris only supports accessing backend configurations via HTTP APIs. To enhance this functionality, I have added some syntax extensions to allow displaying backend configurations using SQL commands.
The SQL syntax for displaying backend configurations is similar to that for displaying frontend configurations:
This statement will display all active backend configurations that match the specified pattern.
The output of these statements consists of 6 columns: BE ID, BE host IP, configuration key, configuration value, configuration type, and whether it is mutable or not.
This provides an additional way to access backend configurations within Doris.