Hello Bharath Vissapragada,
I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/13664
to review the following change.
Change subject: WIP: IMPALA-7434. Handle invalidation races in
CatalogdMetaProvider
......................................................................
WIP: IMPALA-7434. Handle invalidation races in CatalogdMetaProvider
This handles a race condition in which a cache invalidation concurrent
with a cache load would potentially be skipped, causing out-of-date data
to persist in the cache. This would present itself as spurious "table
not found" errors.
A new test case triggers the issue reliably by injecting latency into
the metadata fetch RPC and running DDLs concurrently on the same
database across 8 threads. With the fix, the test passes reliably.
WIP because it probably needs a little more cleanup and testing, but
posting for early review
Change-Id: I70f377db88e204825a909389f28dc3451815235c
---
M be/src/exec/catalog-op-executor.cc
M fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java
M tests/custom_cluster/test_local_catalog.py
3 files changed, 113 insertions(+), 23 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/64/13664/1
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I70f377db88e204825a909389f28dc3451815235c
Gerrit-Change-Number: 13664
Gerrit-PatchSet: 1
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Bharath Vissapragada <[email protected]>
