Weizisheng created IMPALA-14622:
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             Summary: Multi sub-query and union all in one query cause 
coordinator jvm oom
                 Key: IMPALA-14622
                 URL: https://issues.apache.org/jira/browse/IMPALA-14622
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
    Affects Versions: Impala 4.3.0
            Reporter: Weizisheng
         Attachments: demo.sql

With demo.sql attached, coordinator will run out of heap memory the coordinator 
process.

the following log brushing in impalad.INFO 
{code:java}
I1210 11:21:20.028505 2072263 MetastoreShim.java:655] 
e449e840948f713e:fb6ff8ba00000000] Table 
demo_table_1210,#bucket=-1,isBucketed:false,tableType=MANAGED_TABLE,tableCapabilities=null{code}
 

It happens for coordinator both with -Xmx8G and -Xmx32G.

thread dump with Eclipse MAT is here.

!image-2025-12-10-15-05-37-799.png!



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