LemmyNet/pict-rs
2
0
Fork 0
mirror of https://git.asonix.dog/asonix/pict-rs synced 2024-12-25 03:51:24 +00:00
Code Releases Activity

Move store migration to separate file

Browse source
This commit is contained in:
asonix 2023-07-15 15:04:32 -05:00
parent 6a05d3588c
commit 37e2012509
2 changed files with 422 additions and 410 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

414
src/lib.rs
View file

@ -13,6 +13,7 @@ mod ingest;
mod init_tracing;
mod magick;
mod middleware;
mod migrate_store;
mod process;
mod processor;
mod queue;
@ -36,15 +37,13 @@ use futures_util::{
Stream, StreamExt, TryStreamExt,
};
use once_cell::sync::{Lazy, OnceCell};
use repo::sled::SledRepo;
use rusty_s3::UrlStyle;
use std::{
future::ready,
path::Path,
path::PathBuf,
rc::Rc,
sync::atomic::{AtomicU64, Ordering},
time::{Duration, Instant, SystemTime},
time::{Duration, SystemTime},
};
use tokio::sync::Semaphore;
use tracing_actix_web::TracingLogger;
@ -61,9 +60,10 @@ use self::{
init_tracing::init_tracing,
magick::{details_hint, ValidInputType},
middleware::{Deadline, Internal},
migrate_store::migrate_store,
queue::queue_generate,
repo::{
Alias, DeleteToken, FullRepo, HashRepo, IdentifierRepo, MigrationRepo, QueueRepo, Repo,
sled::SledRepo, Alias, DeleteToken, FullRepo, HashRepo, IdentifierRepo, QueueRepo, Repo,
UploadId, UploadResult,
},
serde_str::Serde,
@ -1506,409 +1506,3 @@ pub async fn run() -> color_eyre::Result<()> {
Ok(())
}
async fn migrate_store<R, S1, S2>(
repo: R,
from: S1,
to: S2,
skip_missing_files: bool,
) -> Result<(), Error>
where
S1: Store + Clone + 'static,
S2: Store + Clone + 'static,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo + Clone + 'static,
{
tracing::warn!("Running checks");
if let Err(e) = from.health_check().await {
tracing::warn!("Old store is not configured correctly");
return Err(e.into());
}
if let Err(e) = to.health_check().await {
tracing::warn!("New store is not configured correctly");
return Err(e.into());
}
tracing::warn!("Checks complete, migrating store");
let mut failure_count = 0;
while let Err(e) =
do_migrate_store(repo.clone(), from.clone(), to.clone(), skip_missing_files).await
{
tracing::error!("Migration failed with {}", format!("{e:?}"));
failure_count += 1;
if failure_count >= 50 {
tracing::error!("Exceeded 50 errors");
return Err(e);
} else {
tracing::warn!("Retrying migration +{failure_count}");
}
tokio::time::sleep(Duration::from_secs(3)).await;
}
Ok(())
}
struct MigrateState<R, S1, S2> {
repo: R,
from: S1,
to: S2,
continuing_migration: bool,
skip_missing_files: bool,
initial_repo_size: u64,
repo_size: AtomicU64,
pct: AtomicU64,
index: AtomicU64,
started_at: Instant,
}
async fn do_migrate_store<R, S1, S2>(
repo: R,
from: S1,
to: S2,
skip_missing_files: bool,
) -> Result<(), Error>
where
S1: Store + 'static,
S2: Store + 'static,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo + Clone + 'static,
{
let continuing_migration = repo.is_continuing_migration().await?;
let initial_repo_size = repo.size().await?;
if continuing_migration {
tracing::warn!("Continuing previous migration of {initial_repo_size} total hashes");
} else {
tracing::warn!("{initial_repo_size} hashes will be migrated");
}
if initial_repo_size == 0 {
return Ok(());
}
// Hashes are read in a consistent order
let stream = repo.hashes().await;
let mut stream = Box::pin(stream);
let state = Rc::new(MigrateState {
repo: repo.clone(),
from,
to,
continuing_migration,
skip_missing_files,
initial_repo_size,
repo_size: AtomicU64::new(initial_repo_size),
pct: AtomicU64::new(initial_repo_size / 100),
index: AtomicU64::new(0),
started_at: Instant::now(),
});
let mut joinset = tokio::task::JoinSet::new();
while let Some(hash) = stream.next().await {
let hash = hash?.as_ref().to_vec();
if joinset.len() >= 32 {
if let Some(res) = joinset.join_next().await {
res.map_err(|_| UploadError::Canceled)??;
}
}
let state = Rc::clone(&state);
joinset.spawn_local(async move { migrate_hash(&state, hash).await });
}
// clean up the migration table to avoid interfering with future migrations
repo.clear().await?;
tracing::warn!("Migration completed successfully");
Ok(())
}
#[tracing::instrument(skip(state, hash), fields(hash = %hex::encode(&hash)))]
async fn migrate_hash<R, S1, S2>(
state: &MigrateState<R, S1, S2>,
hash: Vec<u8>,
) -> Result<(), Error>
where
S1: Store,
S2: Store,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo,
{
let MigrateState {
repo,
from,
to,
continuing_migration,
skip_missing_files,
initial_repo_size,
repo_size,
pct,
index,
started_at,
} = state;
let current_index = index.fetch_add(1, Ordering::Relaxed);
let original_identifier = match repo.identifier(hash.clone().into()).await {
Ok(Some(identifier)) => identifier,
Ok(None) => {
tracing::warn!(
"Original File identifier for hash {} is missing, queue cleanup task",
hex::encode(&hash)
);
crate::queue::cleanup_hash(repo, hash.clone().into()).await?;
return Ok(());
}
Err(e) => return Err(e.into()),
};
if repo.is_migrated(&original_identifier).await? {
// migrated original for hash - this means we can skip
return Ok(());
}
let current_repo_size = repo_size.load(Ordering::Acquire);
if *continuing_migration && current_repo_size == *initial_repo_size {
// first time reaching unmigrated hash
let new_repo_size = initial_repo_size.saturating_sub(current_index);
if repo_size
.compare_exchange(
current_repo_size,
new_repo_size,
Ordering::AcqRel,
Ordering::Relaxed,
)
.is_ok()
{
// we successfully updated the count, we're now in charge of setting up pct and
// index and printing migration message
pct.store(new_repo_size / 100, Ordering::Release);
index.store(0, Ordering::Release);
tracing::warn!(
"Caught up to previous migration's end. {new_repo_size} hashes will be migrated"
);
}
}
if let Some(identifier) = repo.motion_identifier(hash.clone().into()).await? {
if !repo.is_migrated(&identifier).await? {
match migrate_file(repo, from, to, &identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &identifier, &new_identifier).await?;
repo.relate_motion_identifier(hash.clone().into(), &new_identifier)
.await?;
repo.mark_migrated(&identifier, &new_identifier).await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!("Skipping motion file for hash {}", hex::encode(&hash));
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating motion file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating motion file to new store");
return Err(e.into());
}
}
}
}
for (variant, identifier) in repo.variants(hash.clone().into()).await? {
if !repo.is_migrated(&identifier).await? {
match migrate_file(repo, from, to, &identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &identifier, &new_identifier).await?;
repo.remove_variant(hash.clone().into(), variant.clone())
.await?;
repo.relate_variant_identifier(hash.clone().into(), variant, &new_identifier)
.await?;
repo.mark_migrated(&identifier, &new_identifier).await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!(
"Skipping variant {} for hash {}",
variant,
hex::encode(&hash)
);
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating variant file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating variant file to new store");
return Err(e.into());
}
}
}
}
match migrate_file(repo, from, to, &original_identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &original_identifier, &new_identifier).await?;
repo.relate_identifier(hash.clone().into(), &new_identifier)
.await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!("Skipping original file for hash {}", hex::encode(&hash));
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating original file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating original file to new store");
return Err(e.into());
}
}
let current_pct = pct.load(Ordering::Relaxed);
if current_pct > 0 && current_index % current_pct == 0 {
let percent = u32::try_from(current_index / current_pct)
.expect("values 0-100 are always in u32 range");
if percent == 0 {
return Ok(());
}
let elapsed = started_at.elapsed();
let estimated_duration_percent = elapsed / percent;
let estimated_duration_remaining =
(100u32.saturating_sub(percent)) * estimated_duration_percent;
let current_repo_size = repo_size.load(Ordering::Relaxed);
tracing::warn!(
"Migrated {percent}% of hashes ({current_index}/{current_repo_size} total hashes)"
);
tracing::warn!("ETA: {estimated_duration_remaining:?} from now");
}
Ok(())
}
async fn migrate_file<R, S1, S2>(
repo: &R,
from: &S1,
to: &S2,
identifier: &S1::Identifier,
skip_missing_files: bool,
) -> Result<S2::Identifier, MigrateError>
where
R: IdentifierRepo,
S1: Store,
S2: Store,
{
let mut failure_count = 0;
loop {
match do_migrate_file(repo, from, to, identifier).await {
Ok(identifier) => return Ok(identifier),
Err(MigrateError::From(e)) if e.is_not_found() && skip_missing_files => {
return Err(MigrateError::From(e));
}
Err(migrate_error) => {
failure_count += 1;
if failure_count > 10 {
tracing::error!("Error migrating file, not retrying");
return Err(migrate_error);
} else {
tracing::warn!("Failed moving file. Retrying +{failure_count}");
}
tokio::time::sleep(Duration::from_secs(3)).await;
}
}
}
}
#[derive(Debug)]
enum MigrateError {
From(crate::store::StoreError),
Details(crate::store::StoreError),
To(crate::store::StoreError),
}
async fn do_migrate_file<R, S1, S2>(
repo: &R,
from: &S1,
to: &S2,
identifier: &S1::Identifier,
) -> Result<S2::Identifier, MigrateError>
where
R: IdentifierRepo,
S1: Store,
S2: Store,
{
let stream = from
.to_stream(identifier, None, None)
.await
.map_err(MigrateError::From)?;
let details_opt = repo
.details(identifier)
.await
.map_err(MigrateError::Details)?;
let content_type = if let Some(details) = details_opt {
details.content_type()
} else {
mime::APPLICATION_OCTET_STREAM
};
let new_identifier = to
.save_stream(stream, content_type)
.await
.map_err(MigrateError::To)?;
Ok(new_identifier)
}
async fn migrate_details<R, I1, I2>(repo: &R, from: &I1, to: &I2) -> Result<(), Error>
where
R: IdentifierRepo,
I1: Identifier,
I2: Identifier,
{
if let Some(details) = repo.details(from).await? {
repo.relate_details(to, &details).await?;
repo.cleanup(from).await?;
}
Ok(())
}

418
src/migrate_store.rs Normal file
View file

@ -0,0 +1,418 @@
use futures_util::StreamExt;
use std::{
rc::Rc,
sync::atomic::{AtomicU64, Ordering},
time::{Duration, Instant},
};
use crate::{
error::{Error, UploadError},
repo::{HashRepo, IdentifierRepo, MigrationRepo, QueueRepo},
store::{Identifier, Store},
};
pub(super) async fn migrate_store<R, S1, S2>(
repo: R,
from: S1,
to: S2,
skip_missing_files: bool,
) -> Result<(), Error>
where
S1: Store + Clone + 'static,
S2: Store + Clone + 'static,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo + Clone + 'static,
{
tracing::warn!("Running checks");
if let Err(e) = from.health_check().await {
tracing::warn!("Old store is not configured correctly");
return Err(e.into());
}
if let Err(e) = to.health_check().await {
tracing::warn!("New store is not configured correctly");
return Err(e.into());
}
tracing::warn!("Checks complete, migrating store");
let mut failure_count = 0;
while let Err(e) =
do_migrate_store(repo.clone(), from.clone(), to.clone(), skip_missing_files).await
{
tracing::error!("Migration failed with {}", format!("{e:?}"));
failure_count += 1;
if failure_count >= 50 {
tracing::error!("Exceeded 50 errors");
return Err(e);
} else {
tracing::warn!("Retrying migration +{failure_count}");
}
tokio::time::sleep(Duration::from_secs(3)).await;
}
Ok(())
}
struct MigrateState<R, S1, S2> {
repo: R,
from: S1,
to: S2,
continuing_migration: bool,
skip_missing_files: bool,
initial_repo_size: u64,
repo_size: AtomicU64,
pct: AtomicU64,
index: AtomicU64,
started_at: Instant,
}
async fn do_migrate_store<R, S1, S2>(
repo: R,
from: S1,
to: S2,
skip_missing_files: bool,
) -> Result<(), Error>
where
S1: Store + 'static,
S2: Store + 'static,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo + Clone + 'static,
{
let continuing_migration = repo.is_continuing_migration().await?;
let initial_repo_size = repo.size().await?;
if continuing_migration {
tracing::warn!("Continuing previous migration of {initial_repo_size} total hashes");
} else {
tracing::warn!("{initial_repo_size} hashes will be migrated");
}
if initial_repo_size == 0 {
return Ok(());
}
// Hashes are read in a consistent order
let stream = repo.hashes().await;
let mut stream = Box::pin(stream);
let state = Rc::new(MigrateState {
repo: repo.clone(),
from,
to,
continuing_migration,
skip_missing_files,
initial_repo_size,
repo_size: AtomicU64::new(initial_repo_size),
pct: AtomicU64::new(initial_repo_size / 100),
index: AtomicU64::new(0),
started_at: Instant::now(),
});
let mut joinset = tokio::task::JoinSet::new();
while let Some(hash) = stream.next().await {
let hash = hash?.as_ref().to_vec();
if joinset.len() >= 32 {
if let Some(res) = joinset.join_next().await {
res.map_err(|_| UploadError::Canceled)??;
}
}
let state = Rc::clone(&state);
joinset.spawn_local(async move { migrate_hash(&state, hash).await });
}
// clean up the migration table to avoid interfering with future migrations
repo.clear().await?;
tracing::warn!("Migration completed successfully");
Ok(())
}
#[tracing::instrument(skip(state, hash), fields(hash = %hex::encode(&hash)))]
async fn migrate_hash<R, S1, S2>(
state: &MigrateState<R, S1, S2>,
hash: Vec<u8>,
) -> Result<(), Error>
where
S1: Store,
S2: Store,
R: IdentifierRepo + HashRepo + QueueRepo + MigrationRepo,
{
let MigrateState {
repo,
from,
to,
continuing_migration,
skip_missing_files,
initial_repo_size,
repo_size,
pct,
index,
started_at,
} = state;
let current_index = index.fetch_add(1, Ordering::Relaxed);
let original_identifier = match repo.identifier(hash.clone().into()).await {
Ok(Some(identifier)) => identifier,
Ok(None) => {
tracing::warn!(
"Original File identifier for hash {} is missing, queue cleanup task",
hex::encode(&hash)
);
crate::queue::cleanup_hash(repo, hash.clone().into()).await?;
return Ok(());
}
Err(e) => return Err(e.into()),
};
if repo.is_migrated(&original_identifier).await? {
// migrated original for hash - this means we can skip
return Ok(());
}
let current_repo_size = repo_size.load(Ordering::Acquire);
if *continuing_migration && current_repo_size == *initial_repo_size {
// first time reaching unmigrated hash
let new_repo_size = initial_repo_size.saturating_sub(current_index);
if repo_size
.compare_exchange(
current_repo_size,
new_repo_size,
Ordering::AcqRel,
Ordering::Relaxed,
)
.is_ok()
{
// we successfully updated the count, we're now in charge of setting up pct and
// index and printing migration message
pct.store(new_repo_size / 100, Ordering::Release);
index.store(0, Ordering::Release);
tracing::warn!(
"Caught up to previous migration's end. {new_repo_size} hashes will be migrated"
);
}
}
if let Some(identifier) = repo.motion_identifier(hash.clone().into()).await? {
if !repo.is_migrated(&identifier).await? {
match migrate_file(repo, from, to, &identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &identifier, &new_identifier).await?;
repo.relate_motion_identifier(hash.clone().into(), &new_identifier)
.await?;
repo.mark_migrated(&identifier, &new_identifier).await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!("Skipping motion file for hash {}", hex::encode(&hash));
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating motion file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating motion file to new store");
return Err(e.into());
}
}
}
}
for (variant, identifier) in repo.variants(hash.clone().into()).await? {
if !repo.is_migrated(&identifier).await? {
match migrate_file(repo, from, to, &identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &identifier, &new_identifier).await?;
repo.remove_variant(hash.clone().into(), variant.clone())
.await?;
repo.relate_variant_identifier(hash.clone().into(), variant, &new_identifier)
.await?;
repo.mark_migrated(&identifier, &new_identifier).await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!(
"Skipping variant {} for hash {}",
variant,
hex::encode(&hash)
);
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating variant file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating variant file to new store");
return Err(e.into());
}
}
}
}
match migrate_file(repo, from, to, &original_identifier, *skip_missing_files).await {
Ok(new_identifier) => {
migrate_details(repo, &original_identifier, &new_identifier).await?;
repo.relate_identifier(hash.clone().into(), &new_identifier)
.await?;
}
Err(MigrateError::Details(e)) => {
tracing::warn!(
"Error fetching details for motion file for hash {}",
hex::encode(&hash)
);
return Err(e.into());
}
Err(MigrateError::From(e)) if e.is_not_found() && *skip_missing_files => {
tracing::warn!("Skipping original file for hash {}", hex::encode(&hash));
}
Err(MigrateError::From(e)) => {
tracing::warn!("Error migrating original file from old store");
return Err(e.into());
}
Err(MigrateError::To(e)) => {
tracing::warn!("Error migrating original file to new store");
return Err(e.into());
}
}
let current_pct = pct.load(Ordering::Relaxed);
if current_pct > 0 && current_index % current_pct == 0 {
let percent = u32::try_from(current_index / current_pct)
.expect("values 0-100 are always in u32 range");
if percent == 0 {
return Ok(());
}
let elapsed = started_at.elapsed();
let estimated_duration_percent = elapsed / percent;
let estimated_duration_remaining =
(100u32.saturating_sub(percent)) * estimated_duration_percent;
let current_repo_size = repo_size.load(Ordering::Relaxed);
tracing::warn!(
"Migrated {percent}% of hashes ({current_index}/{current_repo_size} total hashes)"
);
tracing::warn!("ETA: {estimated_duration_remaining:?} from now");
}
Ok(())
}
async fn migrate_file<R, S1, S2>(
repo: &R,
from: &S1,
to: &S2,
identifier: &S1::Identifier,
skip_missing_files: bool,
) -> Result<S2::Identifier, MigrateError>
where
R: IdentifierRepo,
S1: Store,
S2: Store,
{
let mut failure_count = 0;
loop {
match do_migrate_file(repo, from, to, identifier).await {
Ok(identifier) => return Ok(identifier),
Err(MigrateError::From(e)) if e.is_not_found() && skip_missing_files => {
return Err(MigrateError::From(e));
}
Err(migrate_error) => {
failure_count += 1;
if failure_count > 10 {
tracing::error!("Error migrating file, not retrying");
return Err(migrate_error);
} else {
tracing::warn!("Failed moving file. Retrying +{failure_count}");
}
tokio::time::sleep(Duration::from_secs(3)).await;
}
}
}
}
#[derive(Debug)]
enum MigrateError {
From(crate::store::StoreError),
Details(crate::store::StoreError),
To(crate::store::StoreError),
}
async fn do_migrate_file<R, S1, S2>(
repo: &R,
from: &S1,
to: &S2,
identifier: &S1::Identifier,
) -> Result<S2::Identifier, MigrateError>
where
R: IdentifierRepo,
S1: Store,
S2: Store,
{
let stream = from
.to_stream(identifier, None, None)
.await
.map_err(MigrateError::From)?;
let details_opt = repo
.details(identifier)
.await
.map_err(MigrateError::Details)?;
let content_type = if let Some(details) = details_opt {
details.content_type()
} else {
mime::APPLICATION_OCTET_STREAM
};
let new_identifier = to
.save_stream(stream, content_type)
.await
.map_err(MigrateError::To)?;
Ok(new_identifier)
}
async fn migrate_details<R, I1, I2>(repo: &R, from: &I1, to: &I2) -> Result<(), Error>
where
R: IdentifierRepo,
I1: Identifier,
I2: Identifier,
{
if let Some(details) = repo.details(from).await? {
repo.relate_details(to, &details).await?;
repo.cleanup(from).await?;
}
Ok(())
}