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Ignite TC Bot commented on IGNITE-14893: ---------------------------------------- {panel:title=Branch: [pull/9177/head] Base: [master] : No blockers found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel} {panel:title=Branch: [pull/9177/head] Base: [master] : New Tests (2)|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1} {color:#00008b}Basic 1{color} [[tests 2|https://ci.ignite.apache.org/viewLog.html?buildId=6056209]] * {color:#013220}IgniteBasicTestSuite: IgniteUtilsSelfTest.testHashToIndexDistributionAdvanced - PASSED{color} * {color:#013220}IgniteBasicTestSuite: IgniteUtilsSelfTest.testHashToIndexDistribution - PASSED{color} {panel} [TeamCity *--> Run :: All* Results|https://ci.ignite.apache.org/viewLog.html?buildId=6056270&buildTypeId=IgniteTests24Java8_RunAll] > Bug in GridCacheWriteBehindStore Flusher thread lookup > ------------------------------------------------------ > > Key: IGNITE-14893 > URL: https://issues.apache.org/jira/browse/IGNITE-14893 > Project: Ignite > Issue Type: Bug > Components: cache > Affects Versions: 2.8, 2.7.5, 2.7.6, 2.9, 2.8.1, 2.10, 2.9.1 > Reporter: Mike W > Assignee: Ilya Korol > Priority: Major > Time Spent: 50m > Remaining Estimate: 0h > > There's a bug in GridCacheWriteBehindStore in the flusher method. > [https://github.com/apache/ignite/blob/master/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/store/GridCacheWriteBehindStore.java#L674] > The logic states there that if flush thread count is not a power of 2, then > perform this math, which is not guaranteed to return a positive number. > {code:java} > idx = ((h = key.hashCode()) ^ (h >>> 16)) % flushThreadCnt > {code} > For example, if you pass this string as a key, it returns a negative number: > *accb2e8ea33e4a89b4189463cacc3c4e* > and then throws an array out of bounds exception when looking up the thread. > https://lists.apache.org/list.html?d...@ignite.apache.org -- This message was sent by Atlassian Jira (v8.3.4#803005)