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Expand CF's (#6528)

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carllin 2019-10-29 16:18:03 -07:00 committed by GitHub
parent 4156cea704
commit a5ef78f709
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 33 deletions
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39
ledger/src/blocktree_db.rs
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@ -19,7 +19,6 @@ use std::sync::Arc;
// A good value for this is the number of cores on the machine // A good value for this is the number of cores on the machine
const TOTAL_THREADS: i32 = 8; const TOTAL_THREADS: i32 = 8;
const MAX_WRITE_BUFFER_SIZE: u64 = 256 * 1024 * 1024; // 256MB const MAX_WRITE_BUFFER_SIZE: u64 = 256 * 1024 * 1024; // 256MB
const MIN_WRITE_BUFFER_SIZE: u64 = 64 * 1024; // 64KB
// Column family for metadata about a leader slot // Column family for metadata about a leader slot
const META_CF: &str = "meta"; const META_CF: &str = "meta";
@ -129,22 +128,18 @@ impl Rocks {
let db_options = get_db_options(); let db_options = get_db_options();
// Column family names // Column family names
let meta_cf_descriptor = let meta_cf_descriptor = ColumnFamilyDescriptor::new(SlotMeta::NAME, get_cf_options());
ColumnFamilyDescriptor::new(SlotMeta::NAME, get_cf_options(SlotMeta::NAME));
let dead_slots_cf_descriptor = let dead_slots_cf_descriptor =
ColumnFamilyDescriptor::new(DeadSlots::NAME, get_cf_options(DeadSlots::NAME)); ColumnFamilyDescriptor::new(DeadSlots::NAME, get_cf_options());
let erasure_meta_cf_descriptor = let erasure_meta_cf_descriptor =
ColumnFamilyDescriptor::new(ErasureMeta::NAME, get_cf_options(ErasureMeta::NAME)); ColumnFamilyDescriptor::new(ErasureMeta::NAME, get_cf_options());
let orphans_cf_descriptor = let orphans_cf_descriptor = ColumnFamilyDescriptor::new(Orphans::NAME, get_cf_options());
ColumnFamilyDescriptor::new(Orphans::NAME, get_cf_options(Orphans::NAME)); let root_cf_descriptor = ColumnFamilyDescriptor::new(Root::NAME, get_cf_options());
let root_cf_descriptor = let index_cf_descriptor = ColumnFamilyDescriptor::new(Index::NAME, get_cf_options());
ColumnFamilyDescriptor::new(Root::NAME, get_cf_options(Root::NAME));
let index_cf_descriptor =
ColumnFamilyDescriptor::new(Index::NAME, get_cf_options(Index::NAME));
let shred_data_cf_descriptor = let shred_data_cf_descriptor =
ColumnFamilyDescriptor::new(ShredData::NAME, get_cf_options(ShredData::NAME)); ColumnFamilyDescriptor::new(ShredData::NAME, get_cf_options());
let shred_code_cf_descriptor = let shred_code_cf_descriptor =
ColumnFamilyDescriptor::new(ShredCode::NAME, get_cf_options(ShredCode::NAME)); ColumnFamilyDescriptor::new(ShredCode::NAME, get_cf_options());
let cfs = vec![ let cfs = vec![
meta_cf_descriptor, meta_cf_descriptor,
@ -679,27 +674,13 @@ impl<'a> WriteBatch<'a> {
} }
} }
fn get_cf_options(name: &'static str) -> Options { fn get_cf_options() -> Options {
use columns::{ErasureMeta, Index, ShredCode, ShredData};
let mut options = Options::default(); let mut options = Options::default();
match name { // 256 * 8 = 2GB. 6 of these columns should take at most 12GB of RAM
ShredCode::NAME | ShredData::NAME | Index::NAME | ErasureMeta::NAME => {
// 512MB * 8 = 4GB. 2 of these columns should take no more than 8GB of RAM
options.set_max_write_buffer_number(8); options.set_max_write_buffer_number(8);
options.set_write_buffer_size(MAX_WRITE_BUFFER_SIZE as usize); options.set_write_buffer_size(MAX_WRITE_BUFFER_SIZE as usize);
options.set_target_file_size_base(MAX_WRITE_BUFFER_SIZE / 10); options.set_target_file_size_base(MAX_WRITE_BUFFER_SIZE / 10);
options.set_max_bytes_for_level_base(MAX_WRITE_BUFFER_SIZE); options.set_max_bytes_for_level_base(MAX_WRITE_BUFFER_SIZE);
}
_ => {
// We want smaller CFs to flush faster. This results in more WAL files but lowers
// overall WAL space utilization and increases flush frequency
options.set_write_buffer_size(MIN_WRITE_BUFFER_SIZE as usize);
options.set_target_file_size_base(MIN_WRITE_BUFFER_SIZE);
options.set_max_bytes_for_level_base(MIN_WRITE_BUFFER_SIZE);
options.set_level_zero_file_num_compaction_trigger(1);
}
}
options options
} }