Portal | Manuals | References | Downloads | Info | Programs | JCLs | Master the Mainframes
IBM Mainframe Computers Forums Index
 
Register
 
IBM Mainframe Computers Forums Index Mainframe: Search IBM Mainframe Forum: FAQ Memberlist Usergroups Profile Log in to check your private messages Log in
 

 

SYNCSORT PHASES?

 
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM
View previous topic :: :: View next topic  
Author Message
kitchu84

New User


Joined: 02 Dec 2006
Posts: 33
Location: chennai

PostPosted: Sat Jun 25, 2011 2:20 am    Post subject: SYNCSORT PHASES?
Reply with quote

Does Syncsort have phases? Like if i am running sort on a file , does it happen like read the file, sort and put it in SORTWK and eventually write the records into the o/p file.

Just wanted to know whether we have a way of knowing which phase the sort is in , based on any of the data from SDSF , while the job is still active.
Back to top
View user's profile Send private message

dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Sat Jun 25, 2011 3:31 am    Post subject:
Reply with quote

Hello,

No, there isn't a way from SDSF, really.

Why do you believe this might be of some use to you?
Back to top
View user's profile Send private message
Bill Woodger

DFSORT Moderator


Joined: 09 Mar 2011
Posts: 7251

PostPosted: Sat Jun 25, 2011 3:44 am    Post subject: Reply to: SYNCSORT PHASES?
Reply with quote

Trying to find out how the scrillion-record sort is going?
Back to top
View user's profile Send private message
dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Sat Jun 25, 2011 4:08 am    Post subject:
Reply with quote

Hello,

Possibly. . .

If this really is a scrillion-record (and not just a generic request about sort status while in-flight). something i've noticed over time is that when the cpu usage drops very low and the i/o is very high, the sort is nearly done. As long as the cpu use is substantial, the "ordering" is still in process.
Back to top
View user's profile Send private message
Bill Woodger

DFSORT Moderator


Joined: 09 Mar 2011
Posts: 7251

PostPosted: Sat Jun 25, 2011 4:52 am    Post subject: Reply to: SYNCSORT PHASES?
Reply with quote

There is an "END SORT PHASE" message. As Dick says, then the CPU drops and IO (EXCPs) rises. If you have any sort of "monitoring" tool, you'd notice the difference.

I don't know if the message comes up on the log in your system, or whether you have to get lucky looking at the output while the job is still running.

The read input/write to sortwk/sort is, I think, all happening at the same time, to at least some extent, although sortwk usage and sorting will continue after the input is exhausted. I don't remember a message for "finished with input file", but just look at any sort output, sort messages manual, sort manual etc. Tape rewinding was a clue to finished input. We'd sometimes ask the OPS to let us know that on a big sort (our "big" sorts were tiny compared to yours).

It was always comforting to see WER045C arrive. Although you then start to think about if there is enough space for the output file.
Back to top
View user's profile Send private message
PeterHolland

Global Moderator


Joined: 27 Oct 2009
Posts: 2422
Location: Netherlands, Amstelveen

PostPosted: Sat Jun 25, 2011 12:48 pm    Post subject:
Reply with quote

A description of all Syncsort phases can be found in the Programmer's Guide.
Back to top
View user's profile Send private message
View previous topic :: :: View next topic  
Post new topic   Reply to topic    IBMMAINFRAMES.com Support Forums -> JCL & VSAM All times are GMT + 6 Hours
Page 1 of 1

 

Search our Forum:

Similar Topics
Topic Author Forum Replies Posted
No new posts Syncsort Help to group fields sudhakarraju SYNCSORT 6 Thu Dec 29, 2016 1:38 am
No new posts syncsort: copy lines after the keyword shreya19 SYNCSORT 7 Fri Dec 02, 2016 9:47 am
No new posts Syncsort - Hard coded Value in output PORYES SYNCSORT 1 Thu Nov 03, 2016 9:23 am
No new posts Syncsort - NULL in Integer field chec... nartcr SYNCSORT 4 Thu Oct 06, 2016 6:47 am
No new posts ICETOOL/SYNCSORT - SYSPRINT output nartcr DFSORT/ICETOOL 17 Wed Oct 05, 2016 10:46 pm


Facebook
Back to Top
 
Mainframe Wiki | Forum Rules | Bookmarks | Subscriptions | FAQ | Tutorials | Contact Us