[jira] [Created] (IMPALA-8896) alterPartitionsWithTransaction() emits too many alter table operations

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

Zoltán Borók-Nagy created IMPALA-8896:
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             Summary: alterPartitionsWithTransaction() emits too many alter table operations
                 Key: IMPALA-8896
                 URL: https://issues.apache.org/jira/browse/IMPALA-8896
             Project: IMPALA
          Issue Type: Bug
            Reporter: Zoltán Borók-Nagy


alterPartitionsWithTransaction() has a for loop that updates the write ids of the partitions.

Unfortunately it also does an RPC inside the for loop that updates all partitions. This could be done outside of the for loop.
  public static void alterPartitionsWithTransaction(IMetaStoreClient client,      String dbName, String tblName, List<Partition> partitions, TblTransaction tblTxn
      ) throws InvalidOperationException, MetaException, TException {    for (Partition part : partitions) {
      part.setWriteId(tblTxn.writeId);      // Correct validWriteIdList is needed      // to commit the alter partitions operation in hms side.      client.alter_partitions(dbName, tblName, partitions, null,
           tblTxn.validWriteIds, tblTxn.writeId);
    }
  }



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