Sean Broeder created TRAFODION-2623:
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Summary: Port Esgyn DTM changes to Trafodion
Key: TRAFODION-2623
URL: https://issues.apache.org/jira/browse/TRAFODION-2623
Project: Apache Trafodion
Issue Type: Bug
Components: dtm
Affects Versions: 2.2-incubating
Reporter: Sean Broeder
Assignee: Sean Broeder
Fix For: 2.2-incubating
There are a very large number of changes present in the DTM components from
Esgyn that are not present in Trafodion. It is not practicable to cherry pick
these changes as the two environments are quite different and every cherry pick
attempt I tried involved complicated manual merges. As a consequence, a large
port of DTM changes en masse would be both easier approach and also safer since
the Esgyn code has been much more thoroughly tested.
A sample of the fixes included are:
Dozens of bug fixes
Improved recovery after HBase failures
Better error reporting and tracing, which includes region keys for easier
debugging
Reduced UnknownTransactionExceptions resulting from duplicate transaction
registration
Better TLOG management including reducing the default number of tables
This is the first porting of Esgyn changes. There will need to be additional ,
smaller porting effort. Ultimately the goal is to get the 2 DTM version close
enough that cherry picking will become normal and future mass portings will not
be necessary.
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