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Set default database file size large enough (#1363)

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* make default 100mb file size

* update again

* fix type

* little less extreme file sizes
This commit is contained in:
Nikolay Volf
2016-06-21 14:57:06 +03:00
committed by Gav Wood
parent 951512f9c9
commit c5f6250668
2 changed files with 9 additions and 4 deletions
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9
util/src/kvdb.rs
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@@ -20,6 +20,9 @@ use std::default::Default;
use rocksdb::{DB, Writable, WriteBatch, IteratorMode, DBVector, DBIterator,
IndexType, Options, DBCompactionStyle, BlockBasedOptions, Direction};
const DB_FILE_SIZE_BASE: u64 = 10 * 1024 * 1024;
const DB_FILE_SIZE_MULTIPLIER: i32 = 5;
/// Write transaction. Batches a sequence of put/delete operations for efficiency.
pub struct DBTransaction {
batch: WriteBatch,
@@ -64,7 +67,7 @@ impl DatabaseConfig {
DatabaseConfig {
cache_size: Some(cache_size),
prefix_size: None,
max_open_files: 256
max_open_files: -1,
}
}
}
@@ -74,7 +77,7 @@ impl Default for DatabaseConfig {
DatabaseConfig {
cache_size: None,
prefix_size: None,
max_open_files: 256
max_open_files: -1,
}
}
}
@@ -110,6 +113,8 @@ impl Database {
opts.create_if_missing(true);
opts.set_use_fsync(false);
opts.set_compaction_style(DBCompactionStyle::DBUniversalCompaction);
opts.set_target_file_size_base(DB_FILE_SIZE_BASE);
opts.set_target_file_size_multiplier(DB_FILE_SIZE_MULTIPLIER);
if let Some(cache_size) = config.cache_size {
// half goes to read cache
opts.set_block_cache_size_mb(cache_size as u64 / 2);