417cfc2fb0
The pathfinding engine built into the code has several configurable parameters to adjust the depth of the paths indexed and explored. These parameters can dramatically impact the performance and memory consumption of a server; higher values can result in resource usage increasing exponentially. These default values were decided early and somewhat arbitrarily at a time when the network and the size of the network state were much smaller. This commit adjusts the default values to reduce the depth of paths to more reasonable levels; unless explicitly overriden, the changes mean that pathfinding operations will return fewer, shallower paths than previous versions of the software.
rippled Source
Some of these directories come from entire outside repositories brought in
using [git-subtree][]. This means that the source files are inserted directly
into the rippled repository. They can be edited and committed just as if they
were normal files.
[git-subtree]: https://github.com/apenwarr/git-subtree
If you create a commit that contains files both from a subtree, and from the
rippled source tree, please use care when designing the commit message, since
it will appear in the subtree's individual repository when the changes are
pushed back to the upstream. Better yet, do not mix files from subtrees and
ripple in the same commit at all.
Source folders:
| Folder | Upstream Repo | Description |
|---|---|---|
beast |
N/A | legacy utility code that was formerly associated with boost::beast |
ed25519-donna |
https://github.com/floodyberry/ed25519-donna | Ed25519 digital signatures |
ripple |
N/A | Core source code for rippled |
secp256k1 |
https://github.com/bitcoin-core/secp256k1 | ECDSA digital signatures using the secp256k1 curve |
test |
N/A | Unit tests for rippled |
The following dependencies are downloaded and built using ExternalProject (or FetchContent, where possible). Refer to CMakeLists.txt file for details about how these sources are built :
| Name | Upstream Repo | Description |
|---|---|---|
lz4 |
https://github.com/lz4/lz4 | LZ4 lossless compression algorithm |
nudb |
https://github.com/vinniefalco/NuDB | Constant-time insert-only key/value database for SSD drives (Less memory usage than RocksDB.) |
snappy |
https://github.com/google/snappy | "Snappy" lossless compression algorithm. |
soci |
https://github.com/SOCI/soci | Abstraction layer for database access. |
sqlite |
https://www.sqlite.org/src | An embedded database engine that writes to simple files. |
rocksdb |
https://github.com/facebook/rocksdb | Fast key/value database. (Supports rotational disks better than NuDB.) |
protobuf |
https://github.com/google/protobuf | Protocol buffer data interchange format. Only downloaded/built if a suitable version is not found by find_package, or if the local_protobuf option is explicitly set |