Lockstat Command Output - DLM Locks
The DLM Locks portion of the lockstat utility displays the cluster DLM (Distributed Lock Manager) view of the Ingres installation locks (grouped by resource).
Here is sample output from this section:
--------------- DLM Locks taken by Ingres instance CL ---------------
Locks by Resources having blocked lock(s)
RqstNode PID Lock ID Q GR RQ (MastNode:MastID)
LK_CSP,NODE=1,PID=0
NODEA 2464D19B 47000C37 - G EX EX (NODEA:47000C37)
NODEA 2464D19B 5B002C55 - W NL PR (NODEA:5B002C55)
NODEB 24C34D01 4900C1FD - W NL PR (NODEA:61004665)
LK_CSP,NODE=1,PID=2464a9bb
NODEA 2464A9BB 43006E07 - G EX EX (NODEA:43006E07)
NODEA 2464D19B 7400381B - W NL PR (NODEA:7400381B)
NODEB 24C34D01 0A006AED - W NL PR (NODEA:240057A6)
LK_CSP,NODE=2,PID=0
NODEB 24C34D01 5900143D - G EX EX (NODEB:5900143D)
NODEB 24C34D01 1900B776 - W NL PR (NODEB:1900B776)
NODEA 2464D19B 2C000B37 - W NL PR (NODEB:46005BA6)
LK_CSP,NODE=2,PID=24c34d03
NODEB 24C34D03 640055EB - G EX EX (NODEB:640055EB)
NODEB 24C34D01 110038B8 - W NL PR (NODEB:110038B8)
NODEA 2464D19B 22003414 - W NL PR (NODEB:4700B1B5)
LK_CSP,NODE=2,PID=24c34d04
NODEB 24C34D04 6700CA0C - G EX EX (NODEB:6700CA0C)
NODEB 24C34D01 7A00C422 - W NL PR (NODEB:7A00C422)
NODEA 2464D19B 21005449 - W NL PR (NODEB:5700C08D)
Cluster Nodes seen
Node Name Node Number Lock Count
Local 00000000 0
NODEA 00010023 13
NODEB 00010026 17
Fields are as follows:
RqstNode
Node from which the lock was requested
PID
Process ID
Lock ID
Lock identifier
Q
Status of the lock:
G–granted
W–waiting
C–convert
GR
VMS lock mode granted:
NL–NULL
CR–Concurrent Read
CW–Concurrent Write
PR–Protected Read
PW–Protected Write
EX–Exclusive
RQ
VMS lock mode request (See GR above for lock mode explanations.)
MastNode:MastID
Master node and master lock ID
Last modified date: 01/30/2023