Merge bitcoin#10985: Add undocumented -forcecompactdb to force LevelDB compactions

8842d1a Add undocumented -forcecompactdb to force LevelDB compactions (Pieter Wuille)

Pull request description:

Tree-SHA512: de91f3f574f75248fa6e5091089c840957fae5a972ebcd2b89493f7d777d4658560a6f5a3b43ab0c9b2c333ad98f9f185ae224c9caffc1a5e8df369cc414f123

Author: laanwj

src/dbwrapper.cpp

@@ -115,6 +115,12 @@ CDBWrapper::CDBWrapper(const boost::filesystem::path& path, size_t nCacheSize, b
     dbwrapper_private::HandleError(status);
     LogPrintf("Opened LevelDB successfully\n");
 
+    if (GetBoolArg("-forcecompactdb", false)) {
+        LogPrintf("Starting database compaction of %s\n", path.string());
+        pdb->CompactRange(nullptr, nullptr);
+        LogPrintf("Finished database compaction of %s\n", path.string());
+    }
+
     // The base-case obfuscation key, which is a noop.
     obfuscate_key = std::vector<unsigned char>(OBFUSCATE_KEY_NUM_BYTES, '\000');