RE: Data migration from postgres 8.4 to 9.4
Hi, pg_upgrade does not need installation, it comes with a PostgreSQL installation. You will find it in the bin directory of your 9.4 PostgreSQL installation. Best Regards, Nawaz Ahmed Software Development Engineer Fujitsu Australia Software Technology Pty Ltd 14 Rodborough Road, Frenchs Forest NSW 2086, Australia T +61 2 9452 9027 na...@fast.au.fujitsu.com<mailto:na...@fast.au.fujitsu.com> fastware.com.au<http://fastware.com.au/> From: Akshay Ballarpure [mailto:akshay.ballarp...@tcs.com] Sent: Tuesday, 17 April 2018 10:24 PM To: Albin, Lloyd P ; pgsql-performance@lists.postgresql.org; pg...@lists.postgresql.org Subject: RE: Data migration from postgres 8.4 to 9.4 Thank you for detailed info. much appreciated. May i know how to install pg_upgrade ? With Best Regards Akshay From:"Albin, Lloyd P" mailto:lal...@scharp.org>> To:Akshay Ballarpure mailto:akshay.ballarp...@tcs.com>> Date:04/16/2018 08:38 PM Subject: RE: Data migration from postgres 8.4 to 9.4 Akshay , There are several Official ways to upgrade PostgreSQL. 1) Use pg_upgrade (Faster) Postgres 8.4 to Postgres 9.4. Use the Postgres 9.4 version of pg_upgrade. https://www.postgresql.org/docs/9.4/static/pgupgrade.html 2) Dump and Restore your database into a new server (Slower) Postgres 8.4 to Postgres 9.4 Use pg_dump with pg_restore or pg_dumpall with psql from Postgres 9.4 against your Postgres 8.4 Server. You need to use this method if you wish to change your initdb settings, such as the default encoding, turn on checksums, etc. https://www.postgresql.org/docs/9.4/static/app-pgdump.html https://www.postgresql.org/docs/9.4/static/app-pgrestore.html https://www.postgresql.org/docs/9.4/static/app-pg-dumpall.html 3) Swap out the binaries. This can only be done using the same Postgres version (8.4.x or 9.4.x or 10.x) This means that you can upgrade from 9.4.9 to 9.4.12 by just swapping out the binaries. 4) Unofficially you can use things like slony, etc to do a live migration without downtime. Lloyd From: Akshay Ballarpure [akshay.ballarp...@tcs.com] Sent: Monday, April 16, 2018 12:03 AM Subject: Data migration from postgres 8.4 to 9.4 Hello, I need help in using postgresql 8.4 data in postgres 9.4 version. Do I need to run any tool to achieve the same? Steps i followed is ran postgresql 8.4 and 9.4, copied data from 8.4 instance to 9.4 and try to start postgresql 9.4 but no luck, getting below error. [root@ms-esmon esm-data]# su - postgres -c "/opt/rh/rh-postgresql94/root/usr/bin/postgres -D /var/ericsson/esm-data/postgresql-data/ 2>&1 &" [root@ms-esmon esm-data]# LOG: skipping missing configuration file "/var/ericsson/esm-data/postgresql-data/postgresql.auto.conf" 2018-04-16 06:52:01.546 GMT FATAL: database files are incompatible with server 2018-04-16 06:52:01.546 GMT DETAIL: The data directory was initialized by PostgreSQL version 8.4, which is not compatible with this version 9.4.9. With Best Regards Akshay Ericsson OSS MON Tata Consultancy Services Mailto: akshay.ballarp...@tcs.com<mailto:akshay.ballarp...@tcs.com> Website: http://www.tcs.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.tcs.com_&d=DwMBAg&c=eRAMFD45gAfqt84VtBcfhQ&r=_Ld6CwmrKpJ5kYWOAdC16g&m=cDYWxCJTTi_EPg44JRzRSlNIN2t8gWyoEj7pBPTEd1g&s=DwZUm6m0lu4rIIDh08es1EVB9SR0Bq52G1F9-qPmf5k&e=> Experience certainty.IT Services Business Solutions Consulting =-=-= Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you Disclaimer The information in this e-mail is confidential and may contain content that is subject to copyright and/or is commercial-in-confidence and is intended only for the use of the above named addressee. If you are not the intended recipient, you are hereby notified that dissemination, copying or use of the information is strictly prohibited. If you have received this e-mail in error, please telephone Fujitsu Australia Software Technology Pty Ltd on + 61 2 9452 9000 or by reply e-mail to the sender and delete the document and all copies thereof. Whereas Fujitsu Australia Software Technology Pty Ltd would not knowingly transmit a virus within an email communication, it is the receiver’s re
RE: Data migration from postgres 8.4 to 9.4
Thank you for detailed info. much appreciated. May i know how to install pg_upgrade ? With Best Regards Akshay From: "Albin, Lloyd P" To: Akshay Ballarpure Date: 04/16/2018 08:38 PM Subject: RE: Data migration from postgres 8.4 to 9.4 Akshay , There are several Official ways to upgrade PostgreSQL. 1) Use pg_upgrade (Faster) Postgres 8.4 to Postgres 9.4. Use the Postgres 9.4 version of pg_upgrade. https://www.postgresql.org/docs/9.4/static/pgupgrade.html 2) Dump and Restore your database into a new server (Slower) Postgres 8.4 to Postgres 9.4 Use pg_dump with pg_restore or pg_dumpall with psql from Postgres 9.4 against your Postgres 8.4 Server. You need to use this method if you wish to change your initdb settings, such as the default encoding, turn on checksums, etc. https://www.postgresql.org/docs/9.4/static/app-pgdump.html https://www.postgresql.org/docs/9.4/static/app-pgrestore.html https://www.postgresql.org/docs/9.4/static/app-pg-dumpall.html 3) Swap out the binaries. This can only be done using the same Postgres version (8.4.x or 9.4.x or 10.x) This means that you can upgrade from 9.4.9 to 9.4.12 by just swapping out the binaries. 4) Unofficially you can use things like slony, etc to do a live migration without downtime. Lloyd From: Akshay Ballarpure [akshay.ballarp...@tcs.com] Sent: Monday, April 16, 2018 12:03 AM Subject: Data migration from postgres 8.4 to 9.4 Hello, I need help in using postgresql 8.4 data in postgres 9.4 version. Do I need to run any tool to achieve the same? Steps i followed is ran postgresql 8.4 and 9.4, copied data from 8.4 instance to 9.4 and try to start postgresql 9.4 but no luck, getting below error. [root@ms-esmon esm-data]# su - postgres -c "/opt/rh/rh-postgresql94/root/usr/bin/postgres -D /var/ericsson/esm-data/postgresql-data/ 2>&1 &" [root@ms-esmon esm-data]# LOG: skipping missing configuration file "/var/ericsson/esm-data/postgresql-data/postgresql.auto.conf" 2018-04-16 06:52:01.546 GMT FATAL: database files are incompatible with server 2018-04-16 06:52:01.546 GMT DETAIL: The data directory was initialized by PostgreSQL version 8.4, which is not compatible with this version 9.4.9. With Best Regards Akshay Ericsson OSS MON Tata Consultancy Services Mailto: akshay.ballarp...@tcs.com Website: http://www.tcs.com Experience certainty.IT Services Business Solutions Consulting =-=-= Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
Re: Data migration from postgres 8.4 to 9.4
Am 16.04.2018 um 09:03 schrieb Akshay Ballarpure: > Hello, Hi Akshay, > I need help in using postgresql 8.4 data in postgres 9.4 version. Do I > need to run any tool to achieve the same? Yes. (-performance is probably the wrong place to ask though, please try -general or -admin next time) Please check the release notes before doing *any* upgrade, esp. when skipping 4 major releases. They (among other very important information) contain instructions how to upgrade: https://www.postgresql.org/docs/current/static/release-9-4.html#id-1.11.6.48.4 You'll probably end up doing a pg_upgrade run (which is linked from the above). > > Steps i followed is ran postgresql 8.4 and 9.4, copied data from 8.4 > instance to 9.4 and try to start postgresql 9.4 but no luck, getting > below error. > > [root@ms-esmon esm-data]# su - postgres -c > "/opt/rh/rh-postgresql94/root/usr/bin/postgres -D > /var/ericsson/esm-data/postgresql-data/ 2>&1 &" > [root@ms-esmon esm-data]# LOG: skipping missing configuration file > "/var/ericsson/esm-data/postgresql-data/postgresql.auto.conf" > 2018-04-16 06:52:01.546 GMT *FATAL*: database files are incompatible > with server > 2018-04-16 06:52:01.546 GMT *DETAIL*: The data directory was > initialized by PostgreSQL version 8.4, which is not compatible with this > version 9.4.9. That's exactly what's supposed to happen. The reasons are explained in the pg_upgrade documentation. BTW: Are you sure you want to go to 9.4? It is already rather outdated and will go out of support "soon" (given that you're running 8.4, I have to assume that your organisation requires quite some time to get an upgrade cycle through the red band jungle). Unless you have very good reasons not to, please consider going straight to 10, which will get you almost 5 years of community support. Best regards, -- Gunnar "Nick" Bluth DBA ELSTER Extern im Auftrag der Hays AG Tel: +49 911/991-4665 Mobil: +49 172/8853339
Data migration from postgres 8.4 to 9.4
Hello, I need help in using postgresql 8.4 data in postgres 9.4 version. Do I need to run any tool to achieve the same? Steps i followed is ran postgresql 8.4 and 9.4, copied data from 8.4 instance to 9.4 and try to start postgresql 9.4 but no luck, getting below error. [root@ms-esmon esm-data]# su - postgres -c "/opt/rh/rh-postgresql94/root/usr/bin/postgres -D /var/ericsson/esm-data/postgresql-data/ 2>&1 &" [root@ms-esmon esm-data]# LOG: skipping missing configuration file "/var/ericsson/esm-data/postgresql-data/postgresql.auto.conf" 2018-04-16 06:52:01.546 GMT FATAL: database files are incompatible with server 2018-04-16 06:52:01.546 GMT DETAIL: The data directory was initialized by PostgreSQL version 8.4, which is not compatible with this version 9.4.9. With Best Regards Akshay Ericsson OSS MON Tata Consultancy Services Mailto: akshay.ballarp...@tcs.com Website: http://www.tcs.com Experience certainty. IT Services Business Solutions Consulting =-=-= Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
