plc-mirror/explore/README.md

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# Graceful shutdown/restart
`docker compose stop lister`
`docker compose stop consumer`
`docker compose stop record-indexer`
Take a look at grafana, once all quiet
`docker compose stop postgres`
Start everything up
`docker compose up -d --build`
# Control number of workers
Full throttle
`curl 'localhost:11003/pool/resize?size=50'`
Half throttle (recommended)
`curl 'localhost:11003/pool/resize?size=25'`
Stop eating all of my Internet
`curl 'localhost:11003/pool/resize?size=10'`
# Peak into db
`docker compose exec -it postgres psql -U postgres -d bluesky`
Seen repos
`select count(*) from repos;`
Fully indexed repos
`select count(*) from repos where last_indexed_rev <> '' and (last_indexed_rev >= first_rev_since_reset or first_rev_since_reset is null or first_rev_since_reset = '');`
Get list blocks
non-partitioned (very slow)
```
select count(*) from (select distinct repo from records where collection in ('app.bsky.graph.listblock') and deleted=false and content['subject']::text like '"at://did:plc:bmjomljebcsuxolnygfgqtap/%');
```
partitioned (slow)
`select count(*) from (select distinct repo from records_listblock where deleted=false and content['subject']::text like '"at://did:plc:bmjomljebcsuxolnygfgqtap/%');`
Count all records
`analyze records; select relname, reltuples::int from pg_class where relname like 'records';`
View errors
`select last_error, count(*) from repos where failed_attempts > 0 group by last_error;`
Restart errors
`update repos set failed_attempts=0, last_error='' where failed_attempts >0;`
# MONITORING
More verbose logging for queries DEBUG1-DEBUG5
`set client_min_messages = 'DEBUG5';`
Take a look at slow queries
```
SELECT pid, age(clock_timestamp(), query_start), state, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start asc;
```
Monitor index progress
`select * from pg_stat_progress_create_index;`
Explore new collection types
```
select * from records where collection not in (
'app.bsky.actor.profile',
'app.bsky.feed.generator',
'app.bsky.feed.like',
'app.bsky.feed.post',
'app.bsky.feed.repost',
'app.bsky.feed.threadgate',
'app.bsky.graph.block',
'app.bsky.graph.follow',
'app.bsky.graph.listitem',
'app.bsky.graph.list',
'app.bsky.graph.listblock'
) limit 20;
```
count listitems
`select count(*) from listitems where list='at://did:plc:2yqylcqgxier4l5uplp6w6jh/app.bsky.graph.list/3kkud7l6s4v2m';`