eb78ea4eebfe150bc1746282bfdad6eb0f764e3c [log] mempool loading (glozow)
Pull request description:
Motivated by #29193. Currently, we only log something (non-debug) when we fail to load the file and at the end of importing all the transactions. That means it's hard to tell what's happening if it's taking a long time to load.
This PR adds a maximum of 10 new unconditional log lines:
- When we start to load transactions.
- Our progress percentage when it advances by at least 10% from the last time we logged. Percentage is based on the number of transactions.
If there are lots of transactions in the mempool, the logs will look like this:
```
2024-01-11T11:36:30.410726Z Loading 401 mempool transactions from disk...
2024-01-11T11:36:30.423374Z Progress loading mempool transactions from disk: 10% (tried 41, 360 remaining)
2024-01-11T11:36:30.435539Z Progress loading mempool transactions from disk: 20% (tried 81, 320 remaining)
2024-01-11T11:36:30.447874Z Progress loading mempool transactions from disk: 30% (tried 121, 280 remaining)
2024-01-11T11:36:30.460474Z Progress loading mempool transactions from disk: 40% (tried 161, 240 remaining)
2024-01-11T11:36:30.473731Z Progress loading mempool transactions from disk: 50% (tried 201, 200 remaining)
2024-01-11T11:36:30.487806Z Progress loading mempool transactions from disk: 60% (tried 241, 160 remaining)
2024-01-11T11:36:30.501739Z Progress loading mempool transactions from disk: 70% (tried 281, 120 remaining)
2024-01-11T11:36:30.516334Z Progress loading mempool transactions from disk: 80% (tried 321, 80 remaining)
2024-01-11T11:36:30.531309Z Progress loading mempool transactions from disk: 90% (tried 361, 40 remaining)
2024-01-11T11:36:30.549019Z Imported mempool transactions from disk: 401 succeeded, 0 failed, 0 expired, 0 already there, 400 waiting for initial broadcast
```
If there are 0 or 1 transactions, progress logs aren't printed.
ACKs for top commit:
kevkevinpal:
Concept ACK [eb78ea4](eb78ea4eeb
)
ismaelsadeeq:
ACK eb78ea4eebfe150bc1746282bfdad6eb0f764e3c
dergoegge:
Code review ACK eb78ea4eebfe150bc1746282bfdad6eb0f764e3c
theStack:
re-ACK eb78ea4eebfe150bc1746282bfdad6eb0f764e3c
mzumsande:
tested ACK eb78ea4eebfe150bc1746282bfdad6eb0f764e3c
Tree-SHA512: ae4420986dc7bd5cb675a7ebc76b24c8ee60007f0296ed37e272f1c3415764d44963bea84c51948da319a65661dca8a95eac2a59bf7e745519b6fcafa09812cf
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