Re: Upgrading postgres to 10 running with patroni

Thanks Magnus. I will upgrade patroni and come back with my findings.

Do you find any other faults in the steps that I have been performing.

On Thu, Nov 16, 2017 at 1:10 PM, Magnus Hagander <magnus(at)hagander(dot)net>
wrote:

> You need Patroni 1.3 to work with postgresql version 10. My guess is
> that's where your problem is.
>
> /Magnus
>
> On Nov 16, 2017 08:34, "Debraj Manna" <subharaj(dot)manna(at)gmail(dot)com> wrote:
>
>> I am attaching my patroni.yml for reference.
>>
>> On Thu, Nov 16, 2017 at 12:59 PM, Debraj Manna <subharaj(dot)manna(at)gmail(dot)com>
>> wrote:
>>
>>> Hi
>>>
>>> I am trying to upgrade postgres 9.5 to postgres 10 running with patroni.
>>> I am using patroni 1.0 with single node postgres.
>>>
>>> The steps that I have been following -
>>>
>>> *Stop patroni*
>>> sudo kill -9 <patroni process id>
>>>
>>>
>>> *Install postgres-10*
>>> sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/
>>> trusty-pgdg main"
>>> wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc |
>>> sudo apt-key add -
>>> sudo apt-get update
>>> sudo apt-get install postgresql-10
>>>
>>> *Stop postgresql cluster*
>>>
>>> *Init data directory for the new upgrade*
>>> sudo -H -u postgres mkdir -p /var/lib/postgresql/10/data/postgresql0
>>> sudo -H -u postgres /usr/lib/postgresql/10/bin/pg_ctl -D
>>> /var/lib/postgresql/10/data/postgresql0 initdb -o '--data-checksums' -o
>>> '--locale=C' -o '--encoding=utf8'
>>>
>>> *Change data_directory in postgresq.conf for both 9.5 & 10*
>>> data_directory - /var/lib/postgresql/data/postgresql0 # For
>>> postgresql-9.5
>>> data_directory - /var/lib/postgresql/10/data/postgresql0 # For
>>> postgresql-10
>>>
>>> *Perform the upgrade*
>>> cd /tmp
>>> sudo -H -u postgres /usr/lib/postgresql/10/bin/pg_upgrade \
>>> -b /usr/lib/postgresql/9.5/bin \
>>> -B /usr/lib/postgresql/10/bin \
>>> -d /var/lib/postgresql/data/postgresql0 \
>>> -D /var/lib/postgresql/10/data/postgresql0 \
>>> -o ' -c config_file=/etc/postgresql/9.5/main/postgresql.conf' \
>>> -O ' -c config_file=/etc/postgresql/10/main/postgresql.conf' -k
>>>
>>> *./analyze_new_cluster.sh reported success.*
>>>
>>> *Copy conf files*
>>> Copied postgresql.base.conf, postgresql.conf , pg_hba.conf &
>>> postmaster.opts from 9.5 data directory /var/lib/postgresql/
>>> data/postgresql0 to the 10 data directory /var/lib/postgresql/
>>> 10/data/postgresql0
>>>
>>>
>>> *Change postmaster.opts to match postgres-10 locations*
>>> /usr/lib/postgresql/10/bin/postgres "-D" "/var/lib/postgresql/10/data/postgresql0"
>>> "-p" "50432" "-b" "-c" "config_file=/etc/postgresql/10/main/postgresql.conf"
>>> "-c" "listen_addresses=" "-c" "unix_socket_permissions=0700" "-c"
>>> "unix_socket_directories=/tmp"
>>>
>>>
>>> *Change data_dir in patroni.yml to/var/lib/postgresql/10/data/postgresql0*
>>>
>>> On starting patroni I am getting exception like below and also the DB is
>>> not accessible.
>>>
>>> 2017-11-16 07:11:18,622 INFO: Connecting to localhost:2181
>>> 2017-11-16 07:11:18,624 INFO: Zookeeper connection established, state: CONNECTED
>>> 2017-11-16 07:11:19,132 INFO: Closing connection to localhost:2181
>>> 2017-11-16 07:11:19,132 INFO: Zookeeper session lost, state: CLOSED
>>> 2017-11-16 07:11:19,133 INFO: Connecting to localhost:2181
>>> 2017-11-16 07:11:19,135 INFO: Zookeeper connection established, state: CONNECTED
>>> Traceback (most recent call last):
>>> File "/usr/local/bin/patroni", line 11, in <module>
>>> load_entry_point('patroni==1.0', 'console_scripts', 'patroni')()
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/__init__.py", line 128, in main
>>> patroni.run()
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/__init__.py", line 102, in run
>>> logger.info(self.ha.run_cycle())
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/ha.py", line 502, in run_cycle
>>> return self._run_cycle()
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/ha.py", line 470, in _run_cycle
>>> if self.sysid_valid(self.cluster.initialize) and self.cluster.initialize != self.state_handler.sysid:
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/postgresql.py", line 257, in sysid
>>> data = self.controldata()
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/postgresql.py", line 675, in controldata
>>> result = {l.split(':')[0].replace('Current ', '', 1): l.split(':')[1].strip() for l in data if l}
>>> File "/usr/local/lib/python2.7/dist-packages/patroni/postgresql.py", line 675, in <dictcomp>
>>> result = {l.split(':')[0].replace('Current ', '', 1): l.split(':')[1].strip() for l in data if l}
>>> IndexError: list index out of range
>>> ~
>>>
>>> I was able to access the DB before starting patroni. So I think I missed
>>> something on patroni side.
>>>
>>> I am not sure if this is the right forum to ask this question. If anyone
>>> has tried this please do let me know your thoughts.
>>>
>>
>>
>>
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