Windows 64-bit build is updated.
- Slightly lower memory consumption;
- No LevelDB abstraction object recreation during the checkpoints handling;
- ~ 10% faster block index object initialization.
Experimental native build for 64-bit Windows is available.
Make backup of your data folder before trying this build. Reports are welcome.
Tested for a few hours… It seems that this build is stable enough.
Installer for current release:
http://sourceforge.net/projects/novacoin/files/novacoin-setup-win32-amd64-0.4.4.4.exe/download
Minor client update is available.
v0.4.4.4
- Google’s LevelDB support is implemented, and used as transaction storage by default*;
- The -nosynccheckpoints option is replaced with the new -cppolicy=mode option**;
- RPC: blocktrust and chaintrust fields added into block dump function;
- Many minor fixes and optimizations.
Currently we are working on LevelDB support, source tree will be updated soon. Testing snapshot is quite unstable, but syncronizes well enough.
LevelDB minimizes memory usage and makes syncronization faster, but there is also some Proof-of-Stake related side effects. E.g. validation of PoS block requires additional LevelDB transactions. As the result, performance benefits are lower than it would be for pure PoW based system.
Experimental Win32 build with LevelDB storage:
http://sourceforge.net/projects/novacoin/files/experimental/novacoin-0.4.3-mingw32-4.2.1-sjlj-cross.zip/download
Reports are welcome.
If you wish to make your own build then you need “USE_LEVELDB=1” option.
UPDATE: merged into the main tree. Testers are welcome.
UPDATE2: memory leak found, thanks for the report
https://github.com/CryptoManiac/novacoin/commit/9acf270b14e561fe959ff25001f083a00e5e1caa
Add scrypt+sha512 key derivation method.
Disabled by default. You can use -derivationmethod option to choose which method will be used for wallet encryption keys generation.
Possible values:
* sha512 – default, compatible with bitcoin;
* scrypt+sha512 – selects scrypt derivation function.Please note that this option only allows you to select default method. If you are already using encrypted wallet then suitable derivation method will be selected automatically.
Minor client update is available.
v0.4.4.3
- New -stakepooledkeys* option. This feature is disabled by default;
- Minor optimizations, call scrypt_blockhash once time instead of multiple times in some functions;
- Support for scrypt+sha512** key derivation method. This feature is experimental, and disabled by default;
- Small code cleanup.
Minor client update is available.
v0.4.4.2
- P2P: Don’t return IP addresses older than specified lifespan (7 days by default);
- RPC: New addredeemscript and decodescript RPC calls;
- RPC: The validateaddress now provides redeem script for P2SH addresses;
- RPC: Users are now permitted to increase the keypool size at runtime, using an optional keypoolrefill‘s parameter;
- RPC: Network stake weight calculation precision improvement;
- RPC: Passive weight isn’t calculated anymore;
- Minor fix: don’t display sync-checkpoint related warnings if sync checkpoints feature is disabled;
- Minor fix: disable block signature verification during the initial block index checking, by default;
- LOCKS_SWITCH_TIME conditions removed;
- Checkpoints table is updated, some old checkpoints removed.
Translate to hash script:
http://novacoin.su/tx/6509332d0c6802cc02aca10dba35b305d9a791dd51aebc5a133437a6ed0f3ed3
Translate from hash script to address:
http://novacoin.su/tx/786c54a3e00cc851e6697128119a3b2d9be8f4480f86a48b35266bf120054a94
More information:
https://github.com/CryptoManiac/novacoin/commit/fc462f579d392011645c7fabcfc10ec45ca44bb5#commitcomment-3885423
Minor client update is available for testing.
v0.4.4.1
- DNS seeding is enabled now;
- Timestamp field added into checkpoints table;
- Skip header signature checking while connecting a block (it’s safe because ProcessBlock still performs signatures checking);
- Skip PoW header ECDSA signatures validation since block #9689 until the last checkpoint.
This should make synchronization process slightly faster.
