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AFAIK Geth preserves states for the last 128 blocks by default. I would like to keep states for, say 10000 blocks (not turning myself into archive node). Is it possible?

  • 128? I thought it was 1,000 . – Nulik Jun 8 '18 at 13:34
  • Ethereum team has not yet solved the problem of pruning the state, once you sync your node, it will become an archival node from the block you joined the network – Nulik Jun 8 '18 at 13:35
  • Is there a way to become full archive node (sync with all previous blocks as well) ? – Red Wojak Jun 13 '18 at 8:51
  • you have to use geth 1.8 , pruning (supposedly) is now working in this version, but I didn't try it. – Nulik Jun 13 '18 at 23:32
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Try to modify the line number 60 in core/blockchain.go , by setting this constant:

triesInMemory       = 128

to 10,000

And... God bless you.

If it doesn't work, let me know.

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