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Hemanth Yamijala commented on ATLAS-629: ---------------------------------------- On a related note, the number of messages written to ATLAS_ENTITIES also differed from a case with switchovers to one without. Both of these issues are related to our auto-acknowledging Kafka messages before they are committed to the system, without a replay capability. > Kafka messages in ATLAS_HOOK might be lost in HA mode at the instant of > failover. > --------------------------------------------------------------------------------- > > Key: ATLAS-629 > URL: https://issues.apache.org/jira/browse/ATLAS-629 > Project: Atlas > Issue Type: Bug > Reporter: Hemanth Yamijala > Priority: Critical > Fix For: 0.7-incubating > > > Write data to Kafka continuously from Hive hook - can do this by writing a > script that constantly creates tables. Bring down the Active instance with > kill -9. Ensure writes continue after passive becomes active. The expectation > is the number of tables created and the number of tables in Atlas match. > In one test, wrote 180 tables and switched over 6 times from one instance to > another. Found that 1 table was lost of the lot. i.e. 179 tables were > created, and 1 did not get in. -- This message was sent by Atlassian JIRA (v6.3.4#6332)