Jason Fehr has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/24049 )

Change subject: POC IMPALA-14805: LocalIcebergTable loads files in coordinator
......................................................................


Patch Set 7:

(7 comments)

Overall, seems like a great start.

http://gerrit.cloudera.org:8080/#/c/24049/7//COMMIT_MSG
Commit Message:

http://gerrit.cloudera.org:8080/#/c/24049/7//COMMIT_MSG@15
PS7, Line 15: This assumes that local catalog mode is used, I didn't
            : test without it.
To move out of PoC, will need some validation to ensure local catalog mode is 
used when load_iceberg_files_in_coordinator == true


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java
File fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java@1265
PS7, Line 1265: oon
Nit: one


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/IcebergMetaProvider.java
File fe/src/main/java/org/apache/impala/catalog/local/IcebergMetaProvider.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/IcebergMetaProvider.java@570
PS7, Line 570:     // TODO: does it make sense to skip file loading here?
Where else would file loading be skipped if not here?


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/MetaProvider.java
File fe/src/main/java/org/apache/impala/catalog/local/MetaProvider.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/MetaProvider.java@169
PS7, Line 169:   public class CachedIcebergFiles {
Nit:  This class definition should be in its own file.


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/MultiMetaProvider.java
File fe/src/main/java/org/apache/impala/catalog/local/MultiMetaProvider.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/catalog/local/MultiMetaProvider.java@219
PS7, Line 219:   // TODO: this doesn't really make sense
It might not right now, but in the future it could.  The `tryAllProviders` 
function would need to ignore `NotImplementedException` or else 
`DirectMetaProvider#getIcebergContentFileStore` needs to throw a 
`MetaProviderException`


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
File fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@7804
PS7, Line 7804:         // TODO is affectedExistingPartitions needed?
Does not seem like it is needed.


http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/test/java/org/apache/impala/catalog/local/MetaProviderDecoratorTest.java
File 
fe/src/test/java/org/apache/impala/catalog/local/MetaProviderDecoratorTest.java:

http://gerrit.cloudera.org:8080/#/c/24049/7/fe/src/test/java/org/apache/impala/catalog/local/MetaProviderDecoratorTest.java@142
PS7, Line 142: // TODO: different result if loadFiles=false?
It would be trivial to test by adding:

    // Test loadIcebergTable(TableMetaRef, false)
    TPartialTableInfo actualIcebergTableInfo =
        fixture.loadIcebergTable(expectedTableRef, false);
    assertThat(actualIcebergTableInfo, sameInstance(expectedIcebergTableInfo));
    verify(mockDecorated).loadIcebergTable(eq(expectedTableRef), eq(false));



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I6732af76a2e040fa57e39260302951466037b934
Gerrit-Change-Number: 24049
Gerrit-PatchSet: 7
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Jason Fehr <[email protected]>
Gerrit-Reviewer: Noemi Pap-Takacs <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>
Gerrit-Comment-Date: Mon, 23 Mar 2026 21:06:18 +0000
Gerrit-HasComments: Yes

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