zclllyybb opened a new pull request, #65665:
URL: https://github.com/apache/doris/pull/65665
### What problem does this PR solve?
Issue Number: None
Problem Summary:
ALTER RESOURCE mutates resource objects in place, while SHOW RESOURCE,
checkpoint image serialization, and edit-log flush can read those same objects
asynchronously. For HDFS resources this can expose concurrent property-map
iteration and can let a later ALTER change the object serialized by an earlier
journal entry.
This change:
- protects HDFS resource property mutation and property/proc reads with the
resource read/write lock
- journals ALTER RESOURCE with a detached resource snapshot, preserving
per-resource ALTER order
- snapshots resources before checkpoint image serialization
- adds regression coverage for HDFS property locking, detached journal
snapshots, and reference snapshot copying
### Release note
None
### Check List
- Test:
- `git diff --check`
- `./run-fe-ut.sh --run org.apache.doris.catalog.ResourceMgrTest`
(blocked by an existing upstream `fe-core` testCompile failure:
`SchemaChangeHandlerTest.java:905` references missing
`Column.BINLOG_TIMESTAMP_COL`; FE main sources compile before this failure)
- `./build.sh --fe` (blocked by the same upstream `fe-core` testCompile
failure after FE main sources compile)
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