These messages may be confusing, but there is nothing wrong. Let me go over them:
FlushStateToDisk: write coins cache to disk (coins, kB) completed (s) , OK
This means that the contents of the validation state cache is written to disk. Without this, you'd need to start over if Bitcoin Core were to shutdown uncleanly (e.g. your machine crashing or power loss).
This regularly happens from time to time, or when the cache grows too big (see further).
Imported mempool transactions from disk: X succeeded, X failed, X expired, X already there, X waiting for initial broadcast
This is a log message informing you about the result of unconfirmed transactions being loaded from disk.
Cache size () exceeds total space ()
This is giving the reason why the validation cache state is being written to disk: the amount stored in memory grew larger than how much memory Bitcoin Core was configured to use. This is normal. You can let Bitcoin Core grow the cache bigger using the -dbcache command line option, the dbcache= configuration file option, or the "Database cache" setting in the GUI.
ERROR: AcceptBlockHeader: prev block not found
A peer gave you a block header which Bitcoin Core couldn't interpret. Bitcoin Core simply ignores this.
Disconnecting outbound peer XXX for old chain, best known block =
A peer seemed to be on an invalid or old block, and didn't seem to synchronize with what your Bitcoin Core believes to be the best chain. There is either something wrong with that peer, or it isn't following the same rules. In either case, it's not a peer we'll learn anything useful from. Because the number of connections Bitcoin Core makes is limited, it decided it's better to disconnect this useless peer to make space for another, potentially better, peer.
ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: 000XXX...XXX, bad-diffbits, incorrect proof of work
A peer gave you an invalid block header. It is ignored.
What do I have to do?
Nothing.
So I just have to wait?
So I have a chance to see My Pieces, if you know?
if I have a chance, I would like to pay for your work, which must not be simple...! but is very well explained!
Cordially ! Friends
– signbertrand May 19 '22 at 17:08But how can I see the trace of the TX or the coins?
By simply waiting ? and I look up the TX and Coins
– signbertrand May 19 '22 at 18:03should I wait for a particular writing on the debug of bitcoin Core? - Who will say end of synchronization of the old wallet.dat file with the transactions in the mempool with those in the disk, in the blockchain? (and given that the blockchain is downloaded, with BUGs, parcial, but downloaded)
– signbertrand May 20 '22 at 21:54I think the command -debug or -debugexclude, no! (because I don't know the output - the outputs)
and run a -rescan command... there, I don't see the point, because I already did that a few days ago...
so any advice?
– signbertrand May 20 '22 at 21:55Log2_work
OR not ?
the Log2_work sync, are very slowly !
and other faster sync, tell me please ! if it is ! @Pieter Wuille
– signbertrand Jun 04 '22 at 19:22I would like to ask you a question about bitcoin core mepool,
Is it possible not to see my funds because they are in the mempool?
AND OR
If a transaction (bitcoin core) has not succeeded, blocked in the mempool, the entire wallet (wallet.dat) must wait for ONE transaction to be synchronized, to show the entire balance?
do you have an answer ?
Cordially.
– signbertrand Jun 27 '22 at 18:43