Hello Quanlong Huang, Csaba Ringhofer, Impala Public Jenkins, I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/21019 to look at the new patch set (#4). Change subject: IMPALA-12487: Skip reloading file metadata for ALTER_TABLE events with trivial changes in StorageDescriptor ...................................................................... IMPALA-12487: Skip reloading file metadata for ALTER_TABLE events with trivial changes in StorageDescriptor IMPALA-11534 skips reloading file metadata for some trivial ALTER_TABLE events. However, ALTER_TABLE events that have trivial changes in StorageDescriptor are not handled in IMPALA-11534. The only changes that require file metadata reload are: location, rowformat, fileformat, serde, and storedAsSubDirectories=true. The file metadata reload can be skipped for all other changes in SD. Also introduced a small optimization to skip reloading of table schema when ALTER_TABLE changes location, rowformat, fileformat, and serde in the Storage Descriptor. Testing: 1) Manual testing by changing SD parameters in local environment. 2) Added unit tests for the same in MetastoreEventsProcessorTest class. Change-Id: I6fd9a9504bf93d2529dc7accbf436ad83e51d8ac --- M fe/src/compat-hive-3/java/org/apache/impala/compat/MetastoreShim.java M fe/src/main/java/org/apache/impala/catalog/CatalogServiceCatalog.java M fe/src/main/java/org/apache/impala/catalog/Table.java M fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java M fe/src/test/java/org/apache/impala/catalog/events/MetastoreEventsProcessorTest.java 5 files changed, 156 insertions(+), 46 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/19/21019/4 -- To view, visit http://gerrit.cloudera.org:8080/21019 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I6fd9a9504bf93d2529dc7accbf436ad83e51d8ac Gerrit-Change-Number: 21019 Gerrit-PatchSet: 4 Gerrit-Owner: Sai Hemanth Gantasala <saihema...@cloudera.com> Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Sai Hemanth Gantasala <saihema...@cloudera.com>