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Checkpoint handling in HSSP process.

 
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YSMVS
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PostPosted: Thu Dec 15, 2005 2:17 pm    Post subject: Checkpoint handling in HSSP process. Reply with quote

Hi,

We are planning to implement HSSP (High speed sequential Processing) in our process. when we use the PSB with the PROCOPT H we get the FY status code. We get the FY status code during the repositioning in Database after every Checkpoint call. when we issue the chekpoint call we need to reposition the pointer in the database as the position will be lost. Do we need to handle checkpoint and repositioning differently in HSSP.

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YSMVS.
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kolusu
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PostPosted: Thu Dec 15, 2005 2:36 pm    Post subject: Reply with quote

YSMVS,

PROCOPT=H lets you process segments ONLY in the forward direction. you cannot process backwards.

Kolusu
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YSMVS
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Joined: 19 May 2004
Posts: 51
Topics: 25
Location: My House

PostPosted: Thu Dec 15, 2005 2:50 pm    Post subject: Reply with quote

Kolusu,

Does that mean we can not implement Checkpoint and restart logic in HSSP?
How can we handle CHKP and restarts in HSSP?

thanks,
YSMVS
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YSMVS
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Topics: 25
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PostPosted: Tue Dec 20, 2005 6:16 pm    Post subject: Reply with quote

The above problem has been solved. We changed the logic such that the program will force the checkpoint when it encounters 'GC' status code. When the program encounters 'GC' even after the checkpoint call is issued, the database maintains its position. So there is no need for reposition logic as in other checkpoint calls. So the immediate GN call after CHKP fetches the segment for which GC was returned.
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