Csaba Ringhofer has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18289 )

Change subject: IMPALA-11153: Expose LOCK_RETRIES/LOCK_RETRY_WAIT_SECONDS 
settings for user
......................................................................


Patch Set 2:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/18289/2/common/thrift/CatalogService.thrift
File common/thrift/CatalogService.thrift:

http://gerrit.cloudera.org:8080/#/c/18289/2/common/thrift/CatalogService.thrift@171
PS2, Line 171: lock_retry_wait_seconds
Aren't we pessimistic about "seconds"? I don't know how much overhead do we add 
with the RPCs to Hive, but I think that smaller retry times like 200 ms could 
be reasonable.

We could use lock_retry_wait_ms instead.


http://gerrit.cloudera.org:8080/#/c/18289/2/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/18289/2/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java@483
PS2, Line 483: ddlRequest.getLock_max_retries(), 
ddlRequest.getLock_retry_wait_seconds()
Just an idea to make passing these parameters simpler: the params in ddlRequest 
that come from query options could be collected to a struct and that could be 
passed here.

e.g. it could contain debug_action too, which may become useful in the future 
in RPCs



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I055b76138dd30b2c40eedb48905cb3bade1438fc
Gerrit-Change-Number: 18289
Gerrit-PatchSet: 2
Gerrit-Owner: Zoltan Borok-Nagy <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Gergely Fürnstáhl <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Comment-Date: Fri, 04 Mar 2022 17:42:03 +0000
Gerrit-HasComments: Yes

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