branch-4.0:[feature](fe) Show compute group for MTMV refresh task (#63206)#63901
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seawinde wants to merge 1 commit into
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branch-4.0:[feature](fe) Show compute group for MTMV refresh task (#63206)#63901seawinde wants to merge 1 commit into
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Problem Summary:
Async materialized view refresh task status does not show which compute
group runs the refresh task. This is needed for cloud deployments where
users inspect a single MTMV refresh task and want to know the compute
group used by that task.
Root cause: In `MTMVJobManager.refreshMTMV()`, manual refresh only
creates `MTMVTaskContext` with trigger mode, partitions, and
complete-refresh flag. The refresh execution later creates a new
background `ConnectContext` in `MTMVTask.exec()`, so the foreground
connection's selected compute group is not explicitly carried into the
task context.
| File | Change Description |
|------|-------------------|
| `MTMVJobManager.java` | Resolves the current connection's compute
group in cloud mode and stores it in `MTMVTaskContext` for manual
refresh. |
| `MTMVTaskContext.java` | Adds a serialized `computeGroup` field. |
| `MTMVTask.java` | Applies the task compute group to the background
refresh `ConnectContext`, records it, and exposes `ComputeGroup` in
`tasks("type" = "mv")`. |
| `MTMVTaskTest.java` | Covers schema, TVF output, context recording,
task context application, and old task JSON compatibility. |
| `MTMVJobManagerTest.java` | Covers passing the current compute group
from manual refresh into `MTMVTaskContext`. |
```mermaid
graph TD
A[User REFRESH MTMV] --> B[MTMVJobManager.refreshMTMV]
B --> C[Resolve current ConnectContext compute group]
C --> D[MTMVTaskContext.computeGroup]
D --> E[MTMVTask.exec creates background ConnectContext]
E --> F[Set cloud cluster on refresh ConnectContext]
F --> G[Execute refresh SQL]
F --> H[Expose ComputeGroup in tasks type mv]
```
Example:
After refreshing an async materialized view from compute group
`cg_analytics`:
```sql
REFRESH MATERIALIZED VIEW mv_sales;
```
Users can inspect the refresh task with `tasks("type" = "mv")` and read
the new `ComputeGroup` column:
```sql
SELECT
TaskId,
MvName,
Status,
RefreshMode,
LastQueryId,
ComputeGroup
FROM tasks("type" = "mv")
WHERE MvName = "mv_sales"
ORDER BY CreateTime DESC
LIMIT 1;
```
Example result:
```text
+--------+----------+---------+-------------+----------------------------------+--------------+
| TaskId | MvName | Status | RefreshMode | LastQueryId | ComputeGroup |
+--------+----------+---------+-------------+----------------------------------+--------------+
| 12003 | mv_sales | SUCCESS | COMPLETE | 7f12c8d0f2a84b2b-9d8f2f4c1a5e6b7c | cg_analytics |
+--------+----------+---------+-------------+----------------------------------+--------------+
```
If the task has no recorded compute group, `ComputeGroup` is shown as
`\N`.
Expose ComputeGroup in tasks("type" = "mv") for asynchronous
materialized view refresh tasks.
Contributor
|
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
|
Member
Author
|
run buildall |
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pr: #63206
commitId: 8ceff3b