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- Path: sparky!uunet!olivea!hal.com!darkstar.UCSC.EDU!moldes.ucsc.edu!wipke
- From: wipke@moldes.ucsc.edu
- Newsgroups: comp.os.vms
- Subject: Exceeding max links -- effect of control Y on MONITOR
- Message-ID: <23NOV92.09532326@moldes.ucsc.edu>
- Date: 23 Nov 92 16:53:23 GMT
- Organization: UCSC Molecular Engineering Laboratory
- Lines: 64
- NNTP-Posting-Host: moldes.ucsc.edu
-
- I had nodes to which SET HOST gave error of insufficient system resources
- at remote node. On the affected node, SET HOST gave error exceeding max links.
- MCR NCP SHOW KNOWN LINKS did in fact show 32 links, all to MONITOR_SERVER
- from the same user. That user exits MONITOR with control Y. It appears that
- doing that leaves the link forever. The following transcript illustrates:
- [SYSMGR] mcr sysman
- SYSMAN> set env/node=carbon
- %SYSMAN-I-ENV, current command environment:
- Individual nodes: CARBON
- Username SYSTEM will be used on nonlocal nodes
-
- SYSMAN> do mcr ncp show known links
- %SYSMAN-I-OUTPUT, command execution on node CARBON
-
-
- Known Link Volatile Summary as of 23-NOV-1992 08:43:05
-
- No information in database
-
- SYSMAN> do mcr ncp show known links
- %SYSMAN-I-OUTPUT, command execution on node CARBON
-
-
- Known Link Volatile Summary as of 23-NOV-1992 08:44:01
-
- Link Node PID Process Remote link Remote user
-
- 8268 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8299 WIPKE
- SYSMAN> ! job monitoring exited with control Y
- SYSMAN> ! then gave the monitor/proc/topcpu/node=carbon
- SYSMAN> do mcr ncp show known links
- %SYSMAN-I-OUTPUT, command execution on node CARBON
-
-
- Known Link Volatile Summary as of 23-NOV-1992 08:46:09
-
- Link Node PID Process Remote link Remote user
-
- 8268 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8299 WIPKE
- 8269 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8300 WIPKE
- SYSMAN> ! the link did not get disconnected by control Y
- SYSMAN> ! repeat above
- SYSMAN> do mcr ncp show known links
- %SYSMAN-I-OUTPUT, command execution on node CARBON
-
-
- Known Link Volatile Summary as of 23-NOV-1992 08:47:16
-
- Link Node PID Process Remote link Remote user
-
- 8268 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8299 WIPKE
- 8269 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8300 WIPKE
- 8270 1.31 (MOLDES) 24C001AC MONITOR_SERVER 8301 WIPKE
- SYSMAN>do stop/id=24c001ac
-
- Thus process rundown by typing another command after control Y does not
- disconnect the link. Eventually max links is reached leading to the
- original problem with SET HOST errors. Of course users should not exit
- by control Y. Hope this is helpful to someone.
-
- wipke@secs.ucsc.edu
- Molecular Engineering Laboratory
- University of California
- Santa Cruz
-