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Add pruneblockchain RPC to enable manual block file pruning.

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mrbandrews
2016-11-29 12:39:19 -05:00
parent 5754e0341b
commit 1fc4ec7bf2
8 changed files with 207 additions and 24 deletions
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src/rpc/blockchain.cpp
+31
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@@ -814,6 +814,36 @@ static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats)
return true;
}
UniValue pruneblockchain(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 1)
throw runtime_error(
"pruneblockchain\n"
"\nArguments:\n"
"1. \"height\" (int, required) The block height to prune up to.\n");
if (!fPruneMode)
throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Cannot prune blocks because node is not in prune mode.");
LOCK(cs_main);
int heightParam = request.params[0].get_int();
if (heightParam < 0)
throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative block height.");
unsigned int height = (unsigned int) heightParam;
unsigned int chainHeight = (unsigned int) chainActive.Height();
if (chainHeight < Params().PruneAfterHeight())
throw JSONRPCError(RPC_INTERNAL_ERROR, "Blockchain is too short for pruning.");
else if (height > chainHeight)
throw JSONRPCError(RPC_INVALID_PARAMETER, "Blockchain is shorter than the attempted prune height.");
else if (height > chainHeight - MIN_BLOCKS_TO_KEEP)
LogPrint("rpc", "Attempt to prune blocks close to the tip. Retaining the minimum number of blocks.");
PruneBlockFilesManual(height);
return NullUniValue;
}
UniValue gettxoutsetinfo(const JSONRPCRequest& request)
{
if (request.fHelp || request.params.size() != 0)
@@ -1384,6 +1414,7 @@ static const CRPCCommand commands[] =
{ "blockchain", "getrawmempool", &getrawmempool, true, {"verbose"} },
{ "blockchain", "gettxout", &gettxout, true, {"txid","n","include_mempool"} },
{ "blockchain", "gettxoutsetinfo", &gettxoutsetinfo, true, {} },
{ "blockchain", "pruneblockchain", &pruneblockchain, true, {"height"} },
{ "blockchain", "verifychain", &verifychain, true, {"checklevel","nblocks"} },
{ "blockchain", "preciousblock", &preciousblock, true, {"blockhash"} },