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https://issues.apache.org/jira/browse/TRAFODION-1996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Broeder closed TRAFODION-1996.
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> TLOG uses excessive memory when aging old entries
> -------------------------------------------------
>
> Key: TRAFODION-1996
> URL: https://issues.apache.org/jira/browse/TRAFODION-1996
> Project: Apache Trafodion
> Issue Type: Bug
> Components: dtm
> Affects Versions: 2.0-incubating
> Reporter: Sean Broeder
> Assignee: Sean Broeder
> Fix For: 2.1-incubating
>
> Original Estimate: 168h
> Remaining Estimate: 168h
>
> When deleting old entries in the TLOG tables a complete table scan is
> performed and all regions for all TLOG tables are scanned in parallel. This
> was done to try to improve performance by attempting to delete all old
> entries as quickly as possible. However, with extremely large scans on busy
> systems the scans can become quite large and in a worst case scenario can
> starve out other requests in a regions server by dominating the handlers and
> potentially causing a RS failure due to a long GC pause.
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