Обсуждение: Clarification of documentation detail for upgrading minor version

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Clarification of documentation detail for upgrading minor version

От
Phil Fisher
Дата:
Hello

I have a 9.6.6 system that misses some features.  It is installed on a
RHEL7 OS.  Reading the 9.6 documentation to upgrade I find the
following:

 "

18.6. Upgrading a PostgreSQL Cluster

This section discusses how to upgrade your database data from one
PostgreSQL release to a newer one.

PostgreSQL major versions are represented by the first two digit
groups of the version number, e.g., 8.4. PostgreSQL minor versions are
represented by the third group of version digits, e.g., 8.4.2 is the
second minor release of 8.4. Minor releases never change the internal
storage format and are always compatible with earlier and later minor
releases of the same major version number, e.g., 8.4.2 is compatible
with 8.4, 8.4.1 and 8.4.6. To update between compatible versions, you
simply replace the executables while the server is down and restart
the server. The data directory remains unchanged — minor upgrades are
that simple."

Can someone please clarify what actions should be taken for this (see
penultimate sentence)?  If I install (yum upgrade for example) then I
believe all updated files will be updated and that does not seem to be
the message in the above.  While I can install to a different area
(and since I will be using the PGDG repo it WILL be different) I could
do this and manually copy the 'bin' directory.  However, I would have
expected to have to copy the 'libs' directory as well and perhaps
others (excluding doc etc.).  I will be moving to a 9.6.16 version so
that seems to comply with the restrictions mentioned in the
documentation (and for the avoidance of good people saying use a later
version and do a major upgrade that is not currently
possible/feasible).

Grateful for any detailed advice on the correct path for the above.
Thanks.
--
Phil Fisher

--
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precautions to ensure that no viruses are contained in this email, but does
not accept any responsibility once this email has been transmitted.  You
should scan attachments (if any) for viruses.


Northgate Public Services
(UK) Limited, registered in England and Wales under number 00968498 with a
registered address of Peoplebuilding 2, Peoplebuilding Estate, Maylands
Avenue, Hemel Hempstead, Hertfordshire, HP2 4NW.  Rave Technologies (India)
Pvt Limited, registered in India under number U31900MH1998PTC117068 with a

registered address of PLOT CS 445, 3 rd Floor, A-wing Madhu Corporate Park

Ltd, Pandurang Budhkar Marg, Mumbai -400013



Re: Clarification of documentation detail for upgrading minor version

От
Adrian Klaver
Дата:
On 1/23/20 3:28 AM, Phil Fisher wrote:
> Hello
> 
> I have a 9.6.6 system that misses some features.  It is installed on a
> RHEL7 OS.  Reading the 9.6 documentation to upgrade I find the
> following:
> 
>   "
> 
> 18.6. Upgrading a PostgreSQL Cluster
> 
> This section discusses how to upgrade your database data from one
> PostgreSQL release to a newer one.
> 
> PostgreSQL major versions are represented by the first two digit
> groups of the version number, e.g., 8.4. PostgreSQL minor versions are
> represented by the third group of version digits, e.g., 8.4.2 is the
> second minor release of 8.4. Minor releases never change the internal
> storage format and are always compatible with earlier and later minor
> releases of the same major version number, e.g., 8.4.2 is compatible
> with 8.4, 8.4.1 and 8.4.6. To update between compatible versions, you
> simply replace the executables while the server is down and restart
> the server. The data directory remains unchanged — minor upgrades are
> that simple."
> 
> Can someone please clarify what actions should be taken for this (see
> penultimate sentence)?  If I install (yum upgrade for example) then I
> believe all updated files will be updated and that does not seem to be
> the message in the above.  While I can install to a different area
> (and since I will be using the PGDG repo it WILL be different) I could

Are you currently using the PGDG repos?

If so then the files will be installed in the same locations. They will 
just be the new versions.

> do this and manually copy the 'bin' directory.  However, I would have
> expected to have to copy the 'libs' directory as well and perhaps
> others (excluding doc etc.).  I will be moving to a 9.6.16 version so
> that seems to comply with the restrictions mentioned in the
> documentation (and for the avoidance of good people saying use a later
> version and do a major upgrade that is not currently
> possible/feasible).
> 
> Grateful for any detailed advice on the correct path for the above.
> Thanks.
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com



Re: Clarification of documentation detail for upgrading minor version

От
Phil Fisher
Дата:
Thanks to Adrian I have managed to get around this issue.  Essentially
I had to go old school and create a tar archive of the install on
another comparable system, copy that around and then install via an
untar.  (the repo access was not available as it is a server behind
many FW and in a secure vDatacentre).
The one issue I ended up with (since the system runs under systemd)
was that the directory /var/run/postgresql did not exist for some
reason and I had to create it as when I tried to restart it there was
a failure message.  I am not sure if that was an artefact from moving
from 9.6.6 to 9.6.16 or not but I mention it in case someone has a
similar issue when starting up after the "upgrade".

Phil

On Thu, 23 Jan 2020 at 15:46, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
>
> On 1/23/20 3:28 AM, Phil Fisher wrote:
> > Hello
> >
> > I have a 9.6.6 system that misses some features.  It is installed on a
> > RHEL7 OS.  Reading the 9.6 documentation to upgrade I find the
> > following:
> >
> >   "
> >
> > 18.6. Upgrading a PostgreSQL Cluster
> >
> > This section discusses how to upgrade your database data from one
> > PostgreSQL release to a newer one.
> >
> > PostgreSQL major versions are represented by the first two digit
> > groups of the version number, e.g., 8.4. PostgreSQL minor versions are
> > represented by the third group of version digits, e.g., 8.4.2 is the
> > second minor release of 8.4. Minor releases never change the internal
> > storage format and are always compatible with earlier and later minor
> > releases of the same major version number, e.g., 8.4.2 is compatible
> > with 8.4, 8.4.1 and 8.4.6. To update between compatible versions, you
> > simply replace the executables while the server is down and restart
> > the server. The data directory remains unchanged — minor upgrades are
> > that simple."
> >
> > Can someone please clarify what actions should be taken for this (see
> > penultimate sentence)?  If I install (yum upgrade for example) then I
> > believe all updated files will be updated and that does not seem to be
> > the message in the above.  While I can install to a different area
> > (and since I will be using the PGDG repo it WILL be different) I could
>
> Are you currently using the PGDG repos?
>
> If so then the files will be installed in the same locations. They will
> just be the new versions.
>
> > do this and manually copy the 'bin' directory.  However, I would have
> > expected to have to copy the 'libs' directory as well and perhaps
> > others (excluding doc etc.).  I will be moving to a 9.6.16 version so
> > that seems to comply with the restrictions mentioned in the
> > documentation (and for the avoidance of good people saying use a later
> > version and do a major upgrade that is not currently
> > possible/feasible).
> >
> > Grateful for any detailed advice on the correct path for the above.
> > Thanks.
> >
>
>
> --
> Adrian Klaver
> adrian.klaver@aklaver.com



--
Phil Fisher
DevOPS/Linux Engineer

T: +44 1473 731230 (office)

i2N Ltd
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Tel:  +44 (0)1429 558255 (Hartlepool Service Desk)
Please consider the environment before printing this email

--
This email is sent on behalf of Northgate Public Services (UK) Limited and
its associated companies including Rave Technologies (India) Pvt Limited
(together "Northgate Public Services") and is strictly confidential and
intended solely for the addressee(s). 
If you are not the intended
recipient of this email you must: (i) not disclose, copy or distribute its
contents to any other person nor use its contents in any way or you may be
acting unlawfully;  (ii) contact Northgate Public Services immediately on
+44(0)1442 768445 quoting the name of the sender and the addressee then
delete it from your system.
Northgate Public Services has taken reasonable
precautions to ensure that no viruses are contained in this email, but does
not accept any responsibility once this email has been transmitted.  You
should scan attachments (if any) for viruses.


Northgate Public Services
(UK) Limited, registered in England and Wales under number 00968498 with a
registered address of Peoplebuilding 2, Peoplebuilding Estate, Maylands
Avenue, Hemel Hempstead, Hertfordshire, HP2 4NW.  Rave Technologies (India)
Pvt Limited, registered in India under number U31900MH1998PTC117068 with a

registered address of PLOT CS 445, 3 rd Floor, A-wing Madhu Corporate Park

Ltd, Pandurang Budhkar Marg, Mumbai -400013



Re: Clarification of documentation detail for upgrading minor version

От
Adrian Klaver
Дата:
On 1/24/20 12:27 AM, Phil Fisher wrote:
Please reply to list also.
Ccing list.

> Hi Adrian
> 
> no the version currently installed came from a RHEL repo I believe so
> binaries etc. are not in same place, /usr/local IIRC.
> 
> If there is a an easy/simple way of describing an approach it would be
> good as I am being pressured to complete this work today.
> (While understanding that is not how it works ...)
> 
> Phil
> 
> On Thu, 23 Jan 2020 at 15:46, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
>>
>> On 1/23/20 3:28 AM, Phil Fisher wrote:
>>> Hello
>>>
>>> I have a 9.6.6 system that misses some features.  It is installed on a
>>> RHEL7 OS.  Reading the 9.6 documentation to upgrade I find the
>>> following:
>>>
>>>    "
>>>
>>> 18.6. Upgrading a PostgreSQL Cluster
>>>
>>> This section discusses how to upgrade your database data from one
>>> PostgreSQL release to a newer one.
>>>
>>> PostgreSQL major versions are represented by the first two digit
>>> groups of the version number, e.g., 8.4. PostgreSQL minor versions are
>>> represented by the third group of version digits, e.g., 8.4.2 is the
>>> second minor release of 8.4. Minor releases never change the internal
>>> storage format and are always compatible with earlier and later minor
>>> releases of the same major version number, e.g., 8.4.2 is compatible
>>> with 8.4, 8.4.1 and 8.4.6. To update between compatible versions, you
>>> simply replace the executables while the server is down and restart
>>> the server. The data directory remains unchanged — minor upgrades are
>>> that simple."
>>>
>>> Can someone please clarify what actions should be taken for this (see
>>> penultimate sentence)?  If I install (yum upgrade for example) then I
>>> believe all updated files will be updated and that does not seem to be
>>> the message in the above.  While I can install to a different area
>>> (and since I will be using the PGDG repo it WILL be different) I could
>>
>> Are you currently using the PGDG repos?
>>
>> If so then the files will be installed in the same locations. They will
>> just be the new versions.
>>
>>> do this and manually copy the 'bin' directory.  However, I would have
>>> expected to have to copy the 'libs' directory as well and perhaps
>>> others (excluding doc etc.).  I will be moving to a 9.6.16 version so
>>> that seems to comply with the restrictions mentioned in the
>>> documentation (and for the avoidance of good people saying use a later
>>> version and do a major upgrade that is not currently
>>> possible/feasible).
>>>
>>> Grateful for any detailed advice on the correct path for the above.
>>> Thanks.
>>>
>>
>>
>> --
>> Adrian Klaver
>> adrian.klaver@aklaver.com
> 
> 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com



Re: Clarification of documentation detail for upgrading minor version

От
Adrian Klaver
Дата:
On 1/24/20 6:40 AM, Phil Fisher wrote:
> Thanks to Adrian I have managed to get around this issue.  Essentially
> I had to go old school and create a tar archive of the install on
> another comparable system, copy that around and then install via an
> untar.  (the repo access was not available as it is a server behind
> many FW and in a secure vDatacentre).

So did you copy a RHEL repo install or a PGDG repo one?

> The one issue I ended up with (since the system runs under systemd)
> was that the directory /var/run/postgresql did not exist for some
> reason and I had to create it as when I tried to restart it there was
> a failure message.  I am not sure if that was an artefact from moving
> from 9.6.6 to 9.6.16 or not but I mention it in case someone has a
> similar issue when starting up after the "upgrade".
> 
> Phil
> 
> On Thu, 23 Jan 2020 at 15:46, Adrian Klaver <adrian.klaver@aklaver.com> wrote:
>>
>> On 1/23/20 3:28 AM, Phil Fisher wrote:
>>> Hello
>>>
>>> I have a 9.6.6 system that misses some features.  It is installed on a
>>> RHEL7 OS.  Reading the 9.6 documentation to upgrade I find the
>>> following:
>>>
>>>    "
>>>
>>> 18.6. Upgrading a PostgreSQL Cluster
>>>
>>> This section discusses how to upgrade your database data from one
>>> PostgreSQL release to a newer one.
>>>
>>> PostgreSQL major versions are represented by the first two digit
>>> groups of the version number, e.g., 8.4. PostgreSQL minor versions are
>>> represented by the third group of version digits, e.g., 8.4.2 is the
>>> second minor release of 8.4. Minor releases never change the internal
>>> storage format and are always compatible with earlier and later minor
>>> releases of the same major version number, e.g., 8.4.2 is compatible
>>> with 8.4, 8.4.1 and 8.4.6. To update between compatible versions, you
>>> simply replace the executables while the server is down and restart
>>> the server. The data directory remains unchanged — minor upgrades are
>>> that simple."
>>>
>>> Can someone please clarify what actions should be taken for this (see
>>> penultimate sentence)?  If I install (yum upgrade for example) then I
>>> believe all updated files will be updated and that does not seem to be
>>> the message in the above.  While I can install to a different area
>>> (and since I will be using the PGDG repo it WILL be different) I could
>>
>> Are you currently using the PGDG repos?
>>
>> If so then the files will be installed in the same locations. They will
>> just be the new versions.
>>
>>> do this and manually copy the 'bin' directory.  However, I would have
>>> expected to have to copy the 'libs' directory as well and perhaps
>>> others (excluding doc etc.).  I will be moving to a 9.6.16 version so
>>> that seems to comply with the restrictions mentioned in the
>>> documentation (and for the avoidance of good people saying use a later
>>> version and do a major upgrade that is not currently
>>> possible/feasible).
>>>
>>> Grateful for any detailed advice on the correct path for the above.
>>> Thanks.
>>>
>>
>>
>> --
>> Adrian Klaver
>> adrian.klaver@aklaver.com
> 
> 
> 


-- 
Adrian Klaver
adrian.klaver@aklaver.com