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disable wal & set block based cache when prefix specified

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NikVolf 2016-07-13 19:05:06 +02:00
commit 9a0a5b4c22
1 changed files with 8 additions and 3 deletions
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11
util/src/kvdb.rs
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@ -17,7 +17,7 @@
//! Key-Value store abstraction with `RocksDB` backend. //! Key-Value store abstraction with `RocksDB` backend.
use std::default::Default; use std::default::Default;
use rocksdb::{DB, Writable, WriteBatch, IteratorMode, DBVector, DBIterator, use rocksdb::{DB, Writable, WriteBatch, WriteOptions, IteratorMode, DBVector, DBIterator,
IndexType, Options, DBCompactionStyle, BlockBasedOptions, Direction, Cache}; IndexType, Options, DBCompactionStyle, BlockBasedOptions, Direction, Cache};
const DB_BACKGROUND_FLUSHES: i32 = 2; const DB_BACKGROUND_FLUSHES: i32 = 2;
@ -144,6 +144,7 @@ impl<'a> Iterator for DatabaseIterator {
/// Key-Value database. /// Key-Value database.
pub struct Database { pub struct Database {
db: DB, db: DB,
write_opts: WriteOptions,
} }
impl Database { impl Database {
@ -185,6 +186,10 @@ impl Database {
// quarter goes to each of the two write buffers // quarter goes to each of the two write buffers
opts.set_write_buffer_size(cache_size * 1024 * 256); opts.set_write_buffer_size(cache_size * 1024 * 256);
} }
let mut write_opts = WriteOptions::new();
write_opts.disable_wal(true);
let db = match DB::open(&opts, path) { let db = match DB::open(&opts, path) {
Ok(db) => db, Ok(db) => db,
Err(ref s) if s.starts_with("Corruption:") => { Err(ref s) if s.starts_with("Corruption:") => {
@ -195,7 +200,7 @@ impl Database {
}, },
Err(s) => { return Err(s); } Err(s) => { return Err(s); }
}; };
Ok(Database { db: db }) Ok(Database { db: db, write_opts: write_opts, })
} }
/// Insert a key-value pair in the transaction. Any existing value value will be overwritten. /// Insert a key-value pair in the transaction. Any existing value value will be overwritten.
@ -210,7 +215,7 @@ impl Database {
/// Commit transaction to database. /// Commit transaction to database.
pub fn write(&self, tr: DBTransaction) -> Result<(), String> { pub fn write(&self, tr: DBTransaction) -> Result<(), String> {
self.db.write(tr.batch) self.db.write_opt(tr.batch, &self.write_opts)
} }
/// Get value by key. /// Get value by key.