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Posted to issues-all@impala.apache.org by "Abhishek Rawat (Jira)" <ji...@apache.org> on 2026/02/20 16:36:00 UTC

[jira] [Updated] (IMPALA-14763) Add memory guard before decompressing queries in admissiond

     [ https://issues.apache.org/jira/browse/IMPALA-14763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Abhishek Rawat updated IMPALA-14763:
------------------------------------
    Priority: Critical  (was: Major)

> Add memory guard before decompressing queries in admissiond
> -----------------------------------------------------------
>
>                 Key: IMPALA-14763
>                 URL: https://issues.apache.org/jira/browse/IMPALA-14763
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>            Reporter: Yida Wu
>            Assignee: Yida Wu
>            Priority: Critical
>
> When admissiond is close to its memory limit and a very large query is dequeued, decompression (when compression is enabled) can push memory usage over the limit and cause OOM.
> We should add a protection similar to IMPALA-14493 to reject the queued query before decompression if current_memory + uncompressed_size > memory_limit.



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