Create Abstract base class to perform new reference counting for TransactionLog
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Key: QPID-1764
URL: https://issues.apache.org/jira/browse/QPID-1764
Project: Qpid
Issue Type: Bug
Components: Performance
Reporter: Martin Ritchie
Assignee: Martin Ritchie
Priority: Critical
Fix For: 0.5
Summary:
Summary the introduction of the new TransactionLog interface over the old
MessageStore has resulted in each of the old Stores performing their own
reference counting. As a result they all suffer from:
a) Being different implementations
b) Not being fully tested by existing test frameworks.
By creating a single reference counting TransactionLog base class that
delegates the simple storage and retreival tasks to the underlying Stores the
stores can be simpler and the testing more complete.
Current testing has already shown that performance has knocked 5% by the
MemoryMessageStore's implementation of reference counting when it should not
need to be doing any reference counting.
This was brought up during the FtD Code review
http://cwiki.apache.org/confluence/display/qpid/FtD+Code+Review+Notes
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