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

Posted to oak-issues@jackrabbit.apache.org by "Ivar Suits (Jira)" <ji...@apache.org> on 2021/02/04 14:59:00 UTC

[jira] [Created] (OAK-9345) Query performance issue

Ivar Suits created OAK-9345:
-------------------------------

             Summary: Query performance issue
                 Key: OAK-9345
                 URL: https://issues.apache.org/jira/browse/OAK-9345
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: query
         Environment: DocumentNodeStoreService: RDB

Oracle 18C

Jackrabbit OAK  1.36
            Reporter: Ivar Suits


Added over 5 million documents to Jackrabbit OAK after that performance problems started with following query. Using Oracle DB for DocumentNodeStoreService  It s doing table access full scans.

{code}

select ID, MODIFIED, MODCOUNT, CMODCOUNT, HASBINARY, DELETEDONCE, VERSION, SDTYPE, SDMAXREVTIME, DATA, BDATA
 from NODES where ID > :1
 and ID < :2
 order by ID FETCH FIRST ? ROWS ONLY

{code}

Looks like  Oracle DB  oes not like ID column index and switches to table full scan, because ID column is not number.    As a solution probably index hint need to be added and there should index name for ID column.

 

 



--
This message was sent by Atlassian Jira
(v8.3.4#803005)