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authormrbandrews <bandrewsny@gmail.com>2016-11-29 12:39:19 -0500
committermrbandrews <bandrewsny@gmail.com>2017-01-10 08:14:50 -0500
commit1fc4ec7bf224748d3d6271bffa23d121f015cbf3 (patch)
treea726cadbb46e5e41932be2f06477a145f16df911 /src/rpc/blockchain.cpp
parent5754e0341b7c033d4caf99534aca47e9981bd7ed (diff)
Add pruneblockchain RPC to enable manual block file pruning.
Diffstat (limited to 'src/rpc/blockchain.cpp')
-rw-r--r--src/rpc/blockchain.cpp31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 0b42c1d625..f49a333279 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -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"} },