Sean Broeder created TRAFODION-1996:
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Summary: 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
Fix For: 2.1-incubating
When deleting old entries in the TLOG tables a complete table scan is performed
and a list of deletes is accumulated. This was done to try to improve
performance by attempting to delete all old entries in a single list of
deletes. However, with extremely large scans the list of deletes can become
quite large and in a worst case scenario if a RS failure occurs due to a long
GC we would need to scan the entire table again and possibly cause another RS
failure due to a long GC pause.
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