'What does solana-test-validator do on the background?
When run solana-test-validator it begins a new process with the following output:
Ledger location: test-ledger
Log: test-ledger/validator.log
Identity: 4876NsAf6yH8c7uPXybETZPit142i2QhR7tfSoTPYjHf
Genesis Hash: CrqeHuGVmgHL54Sri7dEm2aCRLFopJrTHoQBYe6ciF7N
Version: 1.8.17
Shred Version: 28931
Gossip Address: 127.0.0.1:1024
TPU Address: 127.0.0.1:1027
JSON RPC URL: http://127.0.0.1:8899
⠄ 01:44:22 | Processed Slot: 48335 | Confirmed Slot: 48335 | Finalized Slot: 483
I understand:
- what consensus alg or leader election is,
- how blocks are ended up in a block chain
- what a Solana validator is
I've also read Solana cluster, validator, slot, epochs docs. It says
Slot: The period of time for which each leader ingests transactions and produces a block.
Could someone explain what happens when we run solana-test-validator? In particular, does it produce blocks/ledger entries? From what it continuously displays
⠄ 01:44:22 | Processed Slot: 48335 | Confirmed Slot: 48335 | Finalized Slot: 483
it seems to be producing new blocks? If so, why do we need those ledger entries? After all nothing happens locally on my cluster (no transactions, not sol transfer....).
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