Hello Qifan Chen, Vihang Karajgaonkar, Csaba Ringhofer, Impala Public Jenkins,
I'd like you to reexamine a change. Please visit http://gerrit.cloudera.org:8080/16392 to look at the new patch set (#9). Change subject: IMPALA-10075: Reuse unchanged partition instances ...................................................................... IMPALA-10075: Reuse unchanged partition instances Currently, we always update the partition instance when we reload a partition. If a partition remains the same after reloading, we should reuse the old partition instance. So we won't send redundant updates on these partitions. This reduces the size of the catalog topic update. When a huge table is REFRESHed, catalogd only propagates the changed partitions. Tests: - Add tests to verify that partition instances are reused after some DDL/DMLs. Change-Id: I2dd645c260d271291021e52fdac4b74924df1170 --- M fe/src/main/java/org/apache/impala/catalog/FileMetadataLoader.java 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/ParallelFileMetadataLoader.java A tests/metadata/test_reuse_partitions.py 5 files changed, 198 insertions(+), 16 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/92/16392/9 -- To view, visit http://gerrit.cloudera.org:8080/16392 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I2dd645c260d271291021e52fdac4b74924df1170 Gerrit-Change-Number: 16392 Gerrit-PatchSet: 9 Gerrit-Owner: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Qifan Chen <qc...@cloudera.com> Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>