[ https://issues.apache.org/jira/browse/IGNITE-7467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pavel Kovalenko reassigned IGNITE-7467: --------------------------------------- Assignee: Pavel Kovalenko > Verify partition update counters and sizes on partition map exchange > -------------------------------------------------------------------- > > Key: IGNITE-7467 > URL: https://issues.apache.org/jira/browse/IGNITE-7467 > Project: Ignite > Issue Type: Improvement > Components: persistence > Affects Versions: 2.1 > Environment: In Ignite we heavily rely on an invariant that under no > load owning partitions will have equal sizes and, more importantly, equal > partition counters. This invariant becomes even more important when > persistence is enabled. > However, due to a possible bug in the code, this invariant can be violated > which in a long run may lead to an undetected data loss. We need to take best > effort to detect such a situation as soon as possible. > Currently, we already send partition update counters during partition map > exchange. We can also send partition sizes and verify that corresponding > partitions in OWNING state have equal partition update counters and sizes. > If a divergence detected, we can: > 1) Always print out an error message to the log > 2) Move the corresponding caches to the read-only state to prevent further > corruption or operating on invalid data > Also, we can introduce a ./control.sh command which will trigger an empty > exchange to verify the partition states. > Reporter: Alexey Goncharuk > Assignee: Pavel Kovalenko > Priority: Major > -- This message was sent by Atlassian JIRA (v7.6.3#76005)