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Fix resume-of-reindex-after-restart

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This more clearly uses fReindex vs fReset to make sure we're not
clearing our coinsdb needlessly when restarting after a reindex.
It also makes it so that restarting after shutting down mid-reindex
isn't treates specially at all during txdb loading code, as it
shouldn't be.
This commit is contained in:
Matt Corallo 2017-07-23 18:08:50 -04:00
parent efac91e654
commit fce3f4f492
1 changed files with 8 additions and 6 deletions
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14
src/init.cpp
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@ -1400,9 +1400,9 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
delete pcoinscatcher;
delete pblocktree;
pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex);
pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReset);
if (fReindex) {
if (fReset) {
pblocktree->WriteReindexing(true);
//If we're reindexing in prune mode, wipe away unusable block files and all undo data files
if (fPruneMode)
@ -1414,6 +1414,8 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
// LoadBlockIndex will load fTxIndex from the db, or set it if
// we're reindexing. It will also load fHavePruned if we've
// ever removed a block file from disk.
// Note that it also sets fReindex based on the disk flag!
// From here on out fReindex and fReset mean something different!
if (!LoadBlockIndex(chainparams)) {
strLoadError = _("Error loading block database");
break;
@ -1448,7 +1450,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
// At this point we're either in reindex or we've loaded a useful
// block tree into mapBlockIndex!
pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex || fReindexChainState);
pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReset || fReindexChainState);
pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview);
// If necessary, upgrade from older database format.
@ -1467,7 +1469,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
// The on-disk coinsdb is now in a good state, create the cache
pcoinsTip = new CCoinsViewCache(pcoinscatcher);
if (!fReindex && !fReindexChainState) {
if (!fReset && !fReindexChainState) {
// LoadChainTip sets chainActive based on pcoinsTip's best block
if (!LoadChainTip(chainparams)) {
strLoadError = _("Error initializing block database");
@ -1476,7 +1478,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
assert(chainActive.Tip() != NULL);
}
if (!fReindex) {
if (!fReset) {
// Note that RewindBlockIndex MUST run even if we're about to -reindex-chainstate.
// It both disconnects blocks based on chainActive, and drops block data in
// mapBlockIndex based on lack of available witness data.
@ -1487,7 +1489,7 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
}
}
if (!fReindex && !fReindexChainState) {
if (!fReset && !fReindexChainState) {
uiInterface.InitMessage(_("Verifying blocks..."));
if (fHavePruned && GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) > MIN_BLOCKS_TO_KEEP) {
LogPrintf("Prune: pruned datadir may not have more than %d blocks; only checking available blocks",