Zoltan Borok-Nagy has uploaded this change for review. ( http://gerrit.cloudera.org:8080/17542
Change subject: IMPALA-10187: Event processing fails on multiple events + DROP TABLE ...................................................................... IMPALA-10187: Event processing fails on multiple events + DROP TABLE Event processing can fail when it needs to process multiple events belonging to the same table, and if one of the events is a DROP TABLE. E.g. imagine the following scenario: Hive> alter table foo set location '/tmp'; Hive> drop table foo; If the two DDLs are executed quickly there's good chance that Impala's event processor will handle these in one event batch. In this case during the processing of ALTER TABLE Impala will try to load table 'foo' which will fail (because Hive already deleted the table). The event processor is not prepared for this exception and gets into a broken state which means no further events getting processed. This patch adds exception handling to CatalogServiceCatalog.reloadTableIfExists() for the case when the table cannot be loaded, in which case it returns false. Testing: * added e2e test Change-Id: I2bd72247293d830063f66eecf9e4ba69a439a605 --- M fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java M tests/custom_cluster/test_event_processing.py 2 files changed, 43 insertions(+), 3 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/42/17542/1 -- To view, visit http://gerrit.cloudera.org:8080/17542 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I2bd72247293d830063f66eecf9e4ba69a439a605 Gerrit-Change-Number: 17542 Gerrit-PatchSet: 1 Gerrit-Owner: Zoltan Borok-Nagy <borokna...@cloudera.com>
