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Cap file size for snapshot data files (#7182)

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* save limit deserialize

* save

* Save

* Clean up

* rustfmt

* rustfmt

* Just comment out to please CI

* Fix ci...

* Move code

* Rustfmt

* Crean up control flow

* Add another comment

* Introduce predetermined constant limit on snapshot data files (deserialize side)

* Introduce predetermined constant limit on snapshot data files (serialize side)

* rustfmt

* Tweak message

* Revert dynamic memory limit

* Limit size of snapshot data file (de)serialization

* Fix test breakage

* Clean up

* Fix uses formatting

* Rename: deserialize_{for,from}_snapshot

* Simplify comment

* Use Slot

* Provide slot for status cache

* Align variable name with snapshot_status_cache_file_path

* Define serialize_snapshot_data_file_with_metrics

* Fix build.......

* De-marco serialize_snapshot_data_file_with_metrics

* Revert u64 => Slot
This commit is contained in:
Ryo Onodera
2020-01-10 09:49:36 +09:00
committed by GitHub
parent 73c93cc345
commit 865c42465a
6 changed files with 412 additions and 91 deletions
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60
core/src/snapshot_packager_service.rs
View File

@ -1,13 +1,10 @@
use bincode::serialize_into;
use solana_ledger::snapshot_package::{SnapshotPackage, SnapshotPackageReceiver};
use solana_ledger::snapshot_utils::{self, SnapshotError, TAR_ACCOUNTS_DIR, TAR_SNAPSHOTS_DIR};
use solana_ledger::snapshot_utils::{
serialize_status_cache, SnapshotError, TAR_ACCOUNTS_DIR, TAR_SNAPSHOTS_DIR,
};
use solana_measure::measure::Measure;
use solana_metrics::datapoint_info;
use solana_runtime::status_cache::SlotDelta;
use solana_sdk::transaction::Result as TransactionResult;
use std::fs;
use std::fs::File;
use std::io::BufWriter;
use std::process::ExitStatus;
use std::sync::atomic::{AtomicBool, Ordering};
use std::sync::mpsc::RecvTimeoutError;
@ -76,7 +73,8 @@ impl SnapshotPackagerService {
snapshot_package.root
);
Self::serialize_status_cache(
serialize_status_cache(
snapshot_package.root,
&snapshot_package.slot_deltas,
&snapshot_package.snapshot_links,
)?;
@ -175,30 +173,6 @@ impl SnapshotPackagerService {
Ok(())
}
fn serialize_status_cache(
slot_deltas: &[SlotDelta<TransactionResult<()>>],
snapshot_links: &TempDir,
) -> Result<()> {
// the status cache is stored as snapshot_path/status_cache
let snapshot_status_cache_file_path = snapshot_links
.path()
.join(snapshot_utils::SNAPSHOT_STATUS_CACHE_FILE_NAME);
let status_cache = File::create(&snapshot_status_cache_file_path)?;
// status cache writer
let mut status_cache_stream = BufWriter::new(status_cache);
let mut status_cache_serialize = Measure::start("status_cache_serialize-ms");
// write the status cache
serialize_into(&mut status_cache_stream, slot_deltas)?;
status_cache_serialize.stop();
inc_new_counter_info!(
"serialize-status-cache-ms",
status_cache_serialize.as_ms() as usize
);
Ok(())
}
pub fn join(self) -> thread::Result<()> {
self.t_snapshot_packager.join()
}
@ -207,8 +181,13 @@ impl SnapshotPackagerService {
#[cfg(test)]
mod tests {
use super::*;
use solana_ledger::snapshot_utils;
use solana_runtime::accounts_db::AccountStorageEntry;
use bincode::serialize_into;
use solana_ledger::snapshot_utils::{self, SNAPSHOT_STATUS_CACHE_FILE_NAME};
use solana_runtime::{
accounts_db::AccountStorageEntry, bank::MAX_SNAPSHOT_DATA_FILE_SIZE,
status_cache::SlotDelta,
};
use solana_sdk::transaction::Result as TransactionResult;
use std::{
fs::{remove_dir_all, OpenOptions},
io::Write,
@ -294,11 +273,16 @@ mod tests {
// before we compare, stick an empty status_cache in this dir so that the package comparision works
// This is needed since the status_cache is added by the packager and is not collected from
// the source dir for snapshots
let slot_deltas: Vec<SlotDelta<TransactionResult<()>>> = vec![];
let dummy_status_cache = File::create(snapshots_dir.join("status_cache")).unwrap();
let mut status_cache_stream = BufWriter::new(dummy_status_cache);
serialize_into(&mut status_cache_stream, &slot_deltas).unwrap();
status_cache_stream.flush().unwrap();
let dummy_slot_deltas: Vec<SlotDelta<TransactionResult<()>>> = vec![];
snapshot_utils::serialize_snapshot_data_file(
&snapshots_dir.join(SNAPSHOT_STATUS_CACHE_FILE_NAME),
MAX_SNAPSHOT_DATA_FILE_SIZE,
|stream| {
serialize_into(stream, &dummy_slot_deltas)?;
Ok(())
},
)
.unwrap();
// Check tarball is correct
snapshot_utils::verify_snapshot_tar(output_tar_path, snapshots_dir, accounts_dir);