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Posted to commits@hudi.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2023/02/01 02:41:00 UTC
[jira] [Updated] (HUDI-5669) BucketIndexPartitioner maybe cause task data skew
[ https://issues.apache.org/jira/browse/HUDI-5669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HUDI-5669:
---------------------------------
Labels: pull-request-available (was: )
> BucketIndexPartitioner maybe cause task data skew
> --------------------------------------------------
>
> Key: HUDI-5669
> URL: https://issues.apache.org/jira/browse/HUDI-5669
> Project: Apache Hudi
> Issue Type: Bug
> Reporter: sandy du
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.14.0
>
>
> BucketIndexPartitioner partition method curBucket call twice hashCode maybe cause data skew
> {code:java}
> public int partition(HoodieKey key, int numPartitions) {
> int curBucket = BucketIdentifier.getBucketId(key, indexKeyFields, bucketNum);
> int globalHash = (key.getPartitionPath() + curBucket).hashCode() & Integer.MAX_VALUE;
> return BucketIdentifier.mod(globalHash, numPartitions);
> } {code}
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