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Bugfix: RPC/blockchain: pruneblockchain: Return the height of the actual last pruned block

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From 0.14 (2017 Mar) until before 0.19 (2019 Nov), the height of the last
block pruned was returned, subject to a bug if there were blocks left unpruned
due to sharing files with later blocks.

In #15991, this was "fixed" to the current implementation, introducing a new
bug: now, it returns the first *unpruned* block.

Since the user provides the parameter as a block to include in pruning, it
makes more sense to fix the behaviour to match the documentation.
This commit is contained in:
Luke Dashjr
2022-03-21 18:38:54 +00:00
parent 2cf8c2caea
commit e593ae07c4
3 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
test/functional/feature_index_prune.py
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@ -73,7 +73,7 @@ class FeatureIndexPruneTest(BitcoinTestFramework):
pruneheight_new = node.pruneblockchain(400)
# the prune heights used here and below are magic numbers that are determined by the
# thresholds at which block files wrap, so they depend on disk serialization and default block file size.
assert_equal(pruneheight_new, 249)
assert_equal(pruneheight_new, 248)
self.log.info("check if we can access the tips blockfilter and coinstats when we have pruned some blocks")
tip = self.nodes[0].getbestblockhash()
@ -108,7 +108,7 @@ class FeatureIndexPruneTest(BitcoinTestFramework):
self.log.info("prune exactly up to the indices best blocks while the indices are disabled")
for i in range(3):
pruneheight_2 = self.nodes[i].pruneblockchain(1000)
assert_equal(pruneheight_2, 751)
assert_equal(pruneheight_2, 750)
# Restart the nodes again with the indices activated
self.restart_node(i, extra_args=self.extra_args[i])
@ -142,7 +142,7 @@ class FeatureIndexPruneTest(BitcoinTestFramework):
for node in self.nodes[:2]:
with node.assert_debug_log(['limited pruning to height 2489']):
pruneheight_new = node.pruneblockchain(2500)
assert_equal(pruneheight_new, 2006)
assert_equal(pruneheight_new, 2005)
self.log.info("ensure that prune locks don't prevent indices from failing in a reorg scenario")
with self.nodes[0].assert_debug_log(['basic block filter index prune lock moved back to 2480']):