Try to follow Prometheus style-guide https://prometheus.io/docs/practices/naming/ for metrics names. More specifically:
- Use `pageserver_` prefix for all pagserver metrics
- Specify `_seconds` unit in time metrics
- Use unit as a suffix in other cases, such as `_hits`, `_bytes`, `_records`
- Use `_total` suffix for accumulating counters (note that Histograms append that suffix internally)
* Do not apply records with LSN smaller than LSN of cached image in delta layer
* Do not apply records with LSN smaller than LSN of cached image in delta layer
* Do not set LSN for new FPI page
refer #1656
* Add page_is_new, page_get_lsn, page_set_lsn functions
* Fix page_is_new implementation
* Add comment from XLogReadBufferForRedoExtended
Fixes#1628
- add [`comfy_table`](https://github.com/Nukesor/comfy-table/tree/main) and use it to construct table for `pg list` CLI command
Comparison
- Old:
```
NODE ADDRESS TIMELINE BRANCH NAME LSN STATUS
main 127.0.0.1:55432 3823dd05e35d71f6ccf33049de366d70 main 0/16FB140 running
migration_check 127.0.0.1:55433 3823dd05e35d71f6ccf33049de366d70 main 0/16FB140 running
```
- New:
```
NODE ADDRESS TIMELINE BRANCH NAME LSN STATUS
main 127.0.0.1:55432 3823dd05e35d71f6ccf33049de366d70 main 0/16FB140 running
migration_check 127.0.0.1:55433 3823dd05e35d71f6ccf33049de366d70 main 0/16FB140 running
```
Make it remember when timeline starts in general and on this safekeeper in
particular (the point might be later on new safekeeper replacing failed one).
Bumps control file and walproposer protocol versions.
While protocol is bumped, also add safekeeper node id to
AcceptorProposerGreeting.
ref #1561
Now princeple is following: acceptor threads (libpq and http) error will
bring the pageserver down, but all per-tenant thread failures will be treated
as an error.
A new `get_lsn_by_timestamp` command is added to the libpq page service
API.
An extra timestamp field is now stored in an extra field after each
Clog page. It is the timestamp of the latest commit, among all the
transactions on the Clog page. To find the overall latest commit, we
need to scan all Clog pages, but this isn't a very frequent operation
so that's not too bad.
To find the LSN that corresponds to a timestamp, we perform a binary
search. The binary search starts with min = last LSN when GC ran, and
max = latest LSN on the timeline. On each iteration of the search we
check if there are any commits with a higher-than-requested timestamp
at that LSN.
Implements github issue 1361.
Arthur Petukhovsky
Kirill Bulatov
Stas Kelvich
Alexey Kondratov
Heikki Linnakangas
Konstantin Knizhnik
Dhammika Pathirana
Anton Shyrabokau
Arseny Sher
Thang Pham
bojanserafimov
Sergey Melnikov
Dmitry Rodionov
Andrey Taranik
Anastasia Lubennikova
Heikki Linnakangas
Anastasia Lubennikova