Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/21665 )

Change subject: IMPALA-12865: Fix wrong lastRefreshEventId set by firing RELOAD 
events
......................................................................

IMPALA-12865: Fix wrong lastRefreshEventId set by firing RELOAD events

When enable_reload_events is true, catalogd fires RELOAD events after
REFRESH finishes reloading the table/partition. The RELOAD event id is
also used to update lastRefreshEventId of the table/partition. This is
problematic when enable_skipping_older_events is true. HMS events
generated after the reload and before the RELOAD event will be skipped.

Solution:
Fetch the current HMS notification event id before the table/partition
is refreshed, and set it as lastRefreshEventId on the metadata object.

Testing:
- Manually verified the issue is addressed.
- Added an end-to-end test which is close to real time issue.

Change-Id: I90039da77ec561c5aede44456f88c6650582815b
Reviewed-on: http://gerrit.cloudera.org:8080/21665
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
---
M fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java
M fe/src/main/java/org/apache/impala/catalog/HdfsTable.java
M fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java
M fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
M fe/src/main/java/org/apache/impala/util/DebugUtils.java
M tests/custom_cluster/test_events_custom_configs.py
6 files changed, 106 insertions(+), 10 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I90039da77ec561c5aede44456f88c6650582815b
Gerrit-Change-Number: 21665
Gerrit-PatchSet: 30
Gerrit-Owner: Sai Hemanth Gantasala <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Pranav Lodha <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Reviewer: Sai Hemanth Gantasala <[email protected]>

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