Troubleshooting
Problem
nzstart: Error: unexpected error accessing system catalog: Lock file "/nz/data.1.0/postmaster.pid" already exists. Is another postgres (pid 28427) running in "/nz/data.1.0"?
Symptom
NPS will not restart.
Cause
This is usually caused when a former postmaster process has kept a lock in /tmp/postmaster.pid file
or when it is still present as a defunct pid.
Environment
All Pure Data Appliances
Diagnosing The Problem
Please follow the next action plan
--Make sure that NPS is stopped
nzstate
--if not
nzstop
Resolving The Problem
ps -ef | grep -i postmaster
kill -9 <pid>
--restart NPS
nzstart
[{"Product":{"code":"SSULQD","label":"IBM PureData System"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Administration","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.0.0","Edition":"All Editions","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
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Document Information
Modified date:
17 October 2019
UID
swg21962523