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Homebulletgrey.gifTechnical Newsbulletgrey.gifCorrected Handling of Segmented Files During Automatic Recovery


Correct Handling of Segmented Files During Automatic Recovery

10 June 2009

Affected Builds: All builds prior to 090610
Criteria: Segmented file, Automatic recovery after a failed c-treeACE Server process
Indications: Renamed file segments

During automatic recovery of a failed c-treeACE process, existing file segments were renamed and thus subsequently not available to the application resulting in apparent missing data. During recovery, an attempt is made to open all segments of a segmented file found in the transaction logs. To open the segments, the segment definition resource must be read from the primary segment. However, an internal file map attribute had not been initialized resulting in a failed call. This failed call caused the recovery process to believe the additional segments did not exist. When later attempting to create the file segment, and that segment already existed, c-treeACE then renamed the segment. The uninitialized attributes are now properly assigned avoiding this potential incorrect renaming of segmented files.

FairCom customers on current maintenance can request an updated V9 server line at any time. Please contact your nearest FairCom office should you have any concerns that you are impacted by this update.

Strategic Concepts has been involved in the development of custom software for the Transportation Industry since 1982. SCI's goal is to provide the trucking industry with software products to help efficiently manage all aspects of a trucking company.

SCI's Strategy5™ system comprises over 60 integrated software modules to provide a complete enterprise solution for transportation companies. From initial marketing and operations to billing, accounting and maintenance — Strategy5 is a complete solution.

Strategy 5 uses the c-tree Server for all of its internal data storage needs. FairCom provides SCI with the portability, ease of use, and absolute data integrity integral to this type of system. By integrating state-of-the-art workstations with FairCom's powerful database Server, Strategy5 provides you with the robust, fully integrated solutions to meet the demanding needs of today's trucking companies.

"I recently enabled mirroring on one of our larger customers who is using two Dell 2300 Dual Processor 600MHZ servers with 36G of disk space running RedHat Linux 6.2. I am amazed at how simple the implementation was. I am very impressed with the c-tree Server and the capabilities it allows us to offer our customers. We can provide high-end functionality for a fraction of the cost of the alternatives with little or no downside. Our products now provide much more performance and capabilities per dollar invested, in a large part due to the efficiencies gained with the c-tree Server."

Edward J. Cooley

President

Strategic Concepts, Inc.

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