Comments (2)
joto
commented on August 27, 2024
Generating and parsing the verbose JSON seems like a huge and unnecessary overhead to me. We are moving quite a bit of data here and should avoid any overhead we can.
Lets move ahead with what we have now instead of getting sidetracked by shinier things somewhere else.
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mmd-osm
commented on August 27, 2024
Just for the record, osmdbt-get-log w/ catch-up for 1 mio changes takes about 41s on wal2json, and 17s on osm-logical. Both values are still well within our worst case volume for minutely replication (which would be around 500k changes). So yes, there's overhead (which was expected), but it's not totally out of proportion.
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Related Issues (20)
- Limit total number of changes per diff generation (osmosis compatibility) HOT 10
- Q: fake-log process and duplicates in diff files HOT 6
- launchpad.net Ubuntu PPA build HOT 23
- Unit test for relations table HOT 2
- Osm-logical: sanity checks HOT 2
- Unit tests for create-diff HOT 5
- Should get-log check for existing log files with same LSN? HOT 1
- Fetching objects in create-diff (osmosis performance regression) HOT 2
- fake-log, isolation level and concurrent txns HOT 4
- state.txt timestamp - and osmosis compatibility HOT 2
- Order of tags in object HOT 4
- Docker compose cluster HOT 1
- Merging diff files HOT 2
- Documenting state.txt file format HOT 2
- CI is broken HOT 4
- Build for Ubuntu 22.04 HOT 3
- Ubuntu 20.04 changes HOT 14
- replication_slot in osmdbt-config.yaml example
- disable-replication should check for remaining entries to be processed HOT 2
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