Tianyi Wang created IMPALA-6838:

             Summary: Compress metadata in DDL operations
                 Key: IMPALA-6838
                 URL: https://issues.apache.org/jira/browse/IMPALA-6838
             Project: IMPALA
          Issue Type: Improvement
    Affects Versions: Impala 3.0, Impala 2.12.0
            Reporter: Tianyi Wang
            Assignee: Tianyi Wang

After IMPALA-5990, the catalog metadata sent through catalogd -> statestored -> 
imapald is compressed. But the responses of DDL operations, which goes directly 
from catalogd to impalad, is not compressed. We should compress it as well to 
save network bandwidth and improve impala's capability to handle large metadata.

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