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| Total Answers and Comments: 4 |
Last Update: July 22, 2009 Asked by: dabba |
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Submitted by: Ritik1008 A Checkpoint Server maintains a repository for checkpoint files. Using checkpoint servers reduces the disk requirements of submitting machines in the pool, since the submitting machines no longer need to store checkpoint files locally. Checkpoint server machines should have a large amount of disk space available, and they should have a fast connection to machines in the Condor pool. If your spool directories are on a network file system, then checkpoint files will make two trips over the network: one between the submitting machine and the execution machine, and a second between the submitting machine and the network file server. If you install a checkpoint server and configure it to use the server's local disk, the checkpoint will travel only once over the network, between the execution machine and the checkpoint server. You may also obtain checkpointing network performance benefits by using multiple checkpoint servers, as discussed below.
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