Pbckp 690 update readme #38
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demonolock
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Aug 3, 2023
README.md
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| ## Overview | ||
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| Ptrack is a block-level incremental backup engine for PostgreSQL. You can [effectively use](https://postgrespro.github.io/pg_probackup/#pbk-setting-up-ptrack-backups) `ptrack` engine for taking incremental backups with [pg_probackup](https://github.com/postgrespro/pg_probackup) backup and recovery manager for PostgreSQL. | ||
| You can [effectively use](https://postgrespro.github.io/pg_probackup/#pbk-setting-up-ptrack-backups) `PTRACK` engine for taking incremental backups with [pg_probackup](https://github.com/postgrespro/pg_probackup) backup and recovery manager for PostgreSQL. |
demonolock
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Aug 3, 2023
README.md
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| This extension is compatible with PostgreSQL [11](https://github.com/postgrespro/ptrack/blob/master/patches/REL_11_STABLE-ptrack-core.diff), [12](https://github.com/postgrespro/ptrack/blob/master/patches/REL_12_STABLE-ptrack-core.diff), [13](https://github.com/postgrespro/ptrack/blob/master/patches/REL_13_STABLE-ptrack-core.diff), [14](https://github.com/postgrespro/ptrack/blob/master/patches/REL_14_STABLE-ptrack-core.diff). | ||
| This extension is compatible with PostgreSQL [11](https://github.com/postgrespro/ptrack/blob/master/patches/REL_11_STABLE-ptrack-core.diff), [12](https://github.com/postgrespro/ptrack/blob/master/patches/REL_12_STABLE-ptrack-core.diff), [13](https://github.com/postgrespro/ptrack/blob/master/patches/REL_13_STABLE-ptrack-core.diff), [14](https://github.com/postgrespro/ptrack/blob/master/patches/REL_14_STABLE-ptrack-core.diff), [15](https://github.com/postgrespro/ptrack/blob/master/patches/REL_15_STABLE-ptrack-core.diff) |
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This extension is compatible with the next versions of PostgreSQL
demonolock
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Aug 3, 2023
README.md
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| ### TODO | ||
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| * Should we introduce `ptrack.map_path` to allow `ptrack` service files storage outside of `PGDATA`? Doing that we will avoid patching PostgreSQL binary utilities to ignore `ptrack.map.*` files. | ||
| * Can we resize `ptrack` map on restart but keep the previously tracked changes? | ||
| * Can we write a formal proof, that we never loose any modified page with `ptrack`? With TLA+? | ||
| * Should we introduce `ptrack.map_path` to allow `PTRACK` service files storage outside of `PGDATA`? Doing that we will avoid patching PostgreSQL binary utilities to ignore `ptrack.map.*` files. | ||
| * Can we resize `PTRACK` map on restart but keep the previously tracked changes? |
demonolock
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Aug 3, 2023
README.md
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| ## Enterprise edition | ||
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| Enterprise PTRACK are part of Postgres Pro Enterprise and share posibility to track more than 100 000 tables and indexes per time without speed degradation with [CFS (compressed file system)](https://postgrespro.ru/docs/enterprise/15/cfs). | ||
| Benchmarcs are x5 time faster and useful for ERP and DWH with huge amounth of tables and relations between them. |
demonolock
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Aug 3, 2023
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| It is designed to allow false positives (i.e. block/page is marked in the `ptrack` map, but actually has not been changed), but to never allow false negatives (i.e. loosing any `PGDATA` changes, excepting hint-bits). | ||
| Current patch are available for [11](https://github.com/postgrespro/ptrack/blob/master/patches/REL_11_STABLE-ptrack-core.diff), [12](https://github.com/postgrespro/ptrack/blob/master/patches/REL_12_STABLE-ptrack-core.diff), [13](https://github.com/postgrespro/ptrack/blob/master/patches/REL_13_STABLE-ptrack-core.diff), [14](https://github.com/postgrespro/ptrack/blob/master/patches/REL_14_STABLE-ptrack-core.diff), [15](https://github.com/postgrespro/ptrack/blob/master/patches/REL_15_STABLE-ptrack-core.diff) |
demonolock
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Aug 3, 2023
README.md
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| This extension is compatible with PostgreSQL [11](https://github.com/postgrespro/ptrack/blob/master/patches/REL_11_STABLE-ptrack-core.diff), [12](https://github.com/postgrespro/ptrack/blob/master/patches/REL_12_STABLE-ptrack-core.diff), [13](https://github.com/postgrespro/ptrack/blob/master/patches/REL_13_STABLE-ptrack-core.diff), [14](https://github.com/postgrespro/ptrack/blob/master/patches/REL_14_STABLE-ptrack-core.diff). | ||
| Enterprise PTRACK are part of [Postgres Pro Backup Enterprise](https://postgrespro.ru/products/postgrespro/enterprise) and share posibility to track more than 100 000 tables and indexes per time without speed degradation with [CFS (compressed file system)](https://postgrespro.ru/docs/enterprise/15/cfs). |
demonolock
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Aug 3, 2023
README.md
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| 3. You cannot resize `ptrack` map in runtime, only on postmaster start. Also, you will loose all tracked changes, so it is recommended to do so in the maintainance window and accompany this operation with full backup. | ||
| 3. You cannot resize `PTRACK` map in runtime, only on postmaster start. Also, you will loose all tracked changes, so it is recommended to do so in the maintainance window and accompany this operation with full backup. |
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