forked from Qortal/qortal
703cdfe174
This takes all trimmed blocks (which should now be all but the last 1450 or so) and moves them into flat files. Each file contains the serialized bytes of as many blocks that can fit within the file size target of 100MiB. As a result, the HSQLDB size drops to less than 1GB, making it much faster and easier to maintain. It also significantly reduces the total size of each full node, because the data is stored in a highly optimized way. HSQLDB then works similarly to the way it does in pruning mode - it holds all transactions, the latest state of every AT, as well as the full AT states data and hashes for the past 1450 blocks. Each archive file contains headers and indexes in order to quickly locate blocks. When a peer requests a block that is within the archive, the serialized bytes are sent directly without the need to go via a BlockData object. Now that there are no slow queries or data serialization processes needed, it should greatly speed up the block serving. The /block API endpoints have been modified in such a way that they will also check and retrieve blocks from the archive when needed. A lightweight "BlockArchive" table is needed in HSQLDB to map block heights to signatures minters and timestamps. It made more sense to keep SQL support for these basic attributes of each block. These are located in a separate table from the full blocks, in order to create a clear distinction between HSQLDB blocks and archived blocks, and also to speed up query times in the Blocks table, which is the one we are using 99% of the time. There is currently a restriction on the /admin/orphan API endpoint to prevent orphaning beyond the threshold of the block archive.
Qortal Project - Official Repo
Build / run
- Requires Java 11. OpenJDK 11 recommended over Java SE.
- Install Maven
- Use Maven to fetch dependencies and build:
mvn clean package - Built JAR should be something like
target/qortal-1.0.jar - Create basic settings.json file:
echo '{}' > settings.json - Run JAR in same working directory as settings.json:
java -jar target/qortal-1.0.jar - Wrap in shell script, add JVM flags, redirection, backgrounding, etc. as necessary.
- Or use supplied example shell script: start.sh