You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@impala.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2018/09/06 01:22:00 UTC

[jira] [Created] (IMPALA-7540) Intern common strings in catalog

Todd Lipcon created IMPALA-7540:
-----------------------------------

             Summary: Intern common strings in catalog
                 Key: IMPALA-7540
                 URL: https://issues.apache.org/jira/browse/IMPALA-7540
             Project: IMPALA
          Issue Type: Bug
    Affects Versions: Impala 3.1.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon


Using jxray shows that there are many common duplicate strings in the catalog. For example, each table repeats the database name, and metadata like the HMS parameter maps reuse a lot of common strings like "EXTERNAL" or "transient_lastDdlTime". We should intern these to save memory.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)