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Add undocumented -forcecompactdb to force LevelDB compactions #10985
pull sipa wants to merge 1 commits into bitcoin:master from sipa:20170803_forcecompactdb changing 2 files +7 −1-
sipa commented at 11:26 PM on August 3, 2017: member
- sipa force-pushed on Aug 3, 2017
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MarcoFalke commented at 6:35 AM on August 4, 2017: member
The option names don't match. Pick one ;)
- MarcoFalke added the label Scripts and tools on Aug 4, 2017
- MarcoFalke added the label UTXO Db and Indexes on Aug 4, 2017
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Add undocumented -forcecompactdb to force LevelDB compactions 8842d1a5d4
- sipa force-pushed on Aug 4, 2017
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sipa commented at 6:45 AM on August 4, 2017: member
I tested it, it instantly ran a 20-minute compaction operation (spinning disk, encrypted/compressed ZFS volume). It slightly reduced the size (though it was only 2.something GB already). During the operation, the usage increased to 3.something GB and went down again.
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achow101 commented at 6:49 AM on August 4, 2017: member
ACK 8842d1a5d48bb6015030b12407ebd2060160c40f
Compaction of block index time with txindex: 1 hour 3 min Block index had no size change, 12 GB before and after
Compaction of chainstate time: 10 min Chainstate reduced from 5.9 GB to 2.7 GB
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TheBlueMatt commented at 7:26 PM on August 4, 2017: member
utACK
- gmaxwell approved
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gmaxwell commented at 12:17 AM on August 5, 2017: contributor
ACK.
2017-08-04 23:41:19 Starting database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-04 23:41:23 Finished database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-04 23:41:29 Starting database compaction of /home/gmaxwell/.bitcoin/chainstate 2017-08-04 23:45:54 Finished database compaction of /home/gmaxwell/.bitcoin/chainstate
on my slow laptop, which only had about 1GB free, now it has 4.3GB free!
Running it again when already compacted (and no new blocks processed) gave:
2017-08-04 23:55:20 Starting database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-04 23:55:20 Finished database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-04 23:55:25 Starting database compaction of /home/gmaxwell/.bitcoin/chainstate 2017-08-04 23:55:25 Finished database compaction of /home/gmaxwell/.bitcoin/chainstate
Then after syncing 174 blocks:
2017-08-05 00:04:41 Starting database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-05 00:04:44 Finished database compaction of /home/gmaxwell/.bitcoin/blocks/index 2017-08-05 00:04:49 Starting database compaction of /home/gmaxwell/.bitcoin/chainstate 2017-08-05 00:13:49 Finished database compaction of /home/gmaxwell/.bitcoin/chainstate
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laanwj commented at 11:10 AM on August 5, 2017: member
utACK 8842d1a
- laanwj merged this on Aug 5, 2017
- laanwj closed this on Aug 5, 2017
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