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pezkuwi-subxt/prdoc/pr_4021.prdoc
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Sebastian Kunert fdb1dba2e1 Add best block indicator to informant message + print parent block on import message (#4021)
Sometimes you need to debug some issues just by the logs and reconstruct
what happened.
In these scenarios it would be nice to know if a block was imported as
best block, and what it parent was.
So here I propose to change the output of the informant to this:

```
2024-04-05 20:38:22.004  INFO ⋮substrate: [Parachain]  Imported #18 (0xe7b3…4555 -> 0xbd6f…ced7)    
2024-04-05 20:38:24.005  INFO ⋮substrate: [Parachain]  Imported #19 (0xbd6f…ced7 -> 0x4dd0…d81f)    
2024-04-05 20:38:24.011  INFO ⋮substrate: [jobless-children-5352] 🌟 Imported #42 (0xed2e…27fc -> 0x718f…f30e)    
2024-04-05 20:38:26.005  INFO ⋮substrate: [Parachain]  Imported #20 (0x4dd0…d81f -> 0x6e85…e2b8)    
2024-04-05 20:38:28.004  INFO ⋮substrate: [Parachain] 🌟 Imported #21 (0x6e85…e2b8 -> 0xad53…2a97)    
2024-04-05 20:38:30.004  INFO ⋮substrate: [Parachain] 🌟 Imported #22 (0xad53…2a97 -> 0xa874…890f)    
```

---------

Co-authored-by: Bastian Köcher <git@kchr.de>
2024-04-08 13:30:32 +00:00

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# Schema: Polkadot SDK PRDoc Schema (prdoc) v1.0.0
# See doc at https://raw.githubusercontent.com/paritytech/polkadot-sdk/master/prdoc/schema_user.json
title: Improve log output for block imports
doc:
- audience: Node Operator
description: |
Nodes now print the parent hash on import notification log messages. In addition, the emoji
of the log message indicates whether the block was imported as best block or not. "🏆" is used for
best blocks, "🆕" for other imported blocks.
crates: [ ]