You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cassandra.apache.org by "Dmitry Konstantinov (Jira)" <ji...@apache.org> on 2026/08/02 08:35:00 UTC

[jira] [Comment Edited] (CASSANDRA-21472) MemtableReclaimMemory AssertionError: Negative released is possible in case of non-leaf-only B-tree update

    [ https://issues.apache.org/jira/browse/CASSANDRA-21472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18100967#comment-18100967 ] 

Dmitry Konstantinov edited comment on CASSANDRA-21472 at 8/2/26 8:34 AM:
-------------------------------------------------------------------------

CI run results:
 * 4.0
 ** [^CASSANDRA-21472-4.0_ci_summary-1.html]
 * 4.1
 ** [^CASSANDRA-21472-4.1_ci_summary-1.html]
 ** (repeated test run) [https://app.circleci.com/pipelines/github/instaclustr/cassandra/6633/workflows/ed4ee2c0-4a42-44f8-9c23-186c3035c1be] 
 * 5.0
 ** [^CASSANDRA-21472-5.0_ci_summary.htm]
 ** [^CASSANDRA-21472-5.0_results_details.tar.xz]
 * 6.0
 * trunk


was (Author: dnk):
CI run results:
 * 4.0
 ** [^CASSANDRA-21472-4.0_ci_summary-1.html]
 * 4.1
 ** [^CASSANDRA-21472-4.1_ci_summary-1.html]
 ** (repeated test run) [https://app.circleci.com/pipelines/github/instaclustr/cassandra/6633/workflows/ed4ee2c0-4a42-44f8-9c23-186c3035c1be] 
 * 5.0
 * 6.0
 * trunk

> MemtableReclaimMemory AssertionError: Negative released is possible in case of non-leaf-only B-tree update
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-21472
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-21472
>             Project: Apache Cassandra
>          Issue Type: Bug
>          Components: Local/Memtable
>            Reporter: Dmitry Konstantinov
>            Assignee: Dmitry Konstantinov
>            Priority: Normal
>             Fix For: 4.0.x, 4.1.x, 5.0.x, 6.x, 7.x
>
>         Attachments: CASSANDRA-21472-4.0_ci_summary-1.html, CASSANDRA-21472-4.1_ci_summary-1.html, CASSANDRA-21472-5.0_ci_summary.htm, CASSANDRA-21472-5.0_results_details.tar.xz
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> we have asymmetry in BTree heap usage measurement: when we remove a complex column we measure heap size for inner BTree cells using org.apache.cassandra.utils.btree.BTree#sizeOnHeapOf which includes size maps. When we update a BTree by adding elements into it then we do not include size maps.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@cassandra.apache.org
For additional commands, e-mail: commits-help@cassandra.apache.org