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Ted Yu reassigned HBASE-20932: ------------------------------ Assignee: Mingliang Liu > Effective MemStoreSize::hashCode() > ----------------------------------- > > Key: HBASE-20932 > URL: https://issues.apache.org/jira/browse/HBASE-20932 > Project: HBase > Issue Type: Bug > Affects Versions: 2.0.2 > Reporter: Mingliang Liu > Assignee: Mingliang Liu > Priority: Major > Attachments: HBASE-20932.001.patch > > > After HBASE-20411 we have > {code:java|title=MemStoreSize::hashCode()} > @Override > public int hashCode() { > long h = 31 * this.dataSize; > h = h + 31 * this.heapSize; > h = h + 31 * this.offHeapSize; > return (int) h; > } > {code} > This is not effective {{hashCode()}} implementation. Instead we can use: > {code:java|title=MemStoreSize::hashCode()} > @Override > public int hashCode() { > long h = this.dataSize; > h = h * 31 + this.heapSize; > h = h * 31 + this.offHeapSize; > return (int) h; > } > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)