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I am working on upgrading postgres from version 9.3 to 10. I have encountered a lot of issues along the way since the install is way more custom done than it should be (People here LOVE complex and custom/security through obscurity).

Far as I can tell it has something to do with pg_pool but am not too sure on that one.

Upgrade command:

time ${PGBINNEW}/pg_upgrade --old-bindir=${PGBINOLD} --new-bindir=${PGBINNEW} --old-datadir=${PGDATAOLD} --new-datadir=${PGDATANEW} --old-port=${PGPORT} --new-port=${PGPORTNEW} --jobs=$(nproc | awk '{ {print ($1 > 4) ? 4 : ($1 == 1 ? 1 : $1 - 1)} }') --link --username=postgres

Error:

There seems to be a postmaster servicing the old cluster.
Please shutdown that postmaster and try again.
Failure, exiting
  • The old database server is still running, shut it down before doing the upgrade – Gaius Sep 10 '18 at 10:45

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