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Sequencer: don't wait for initialization, but error immedaitely... #144

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bwesterb wants to merge 2 commits into from
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Sequencer: don't wait for initialization, but error immedaitely... #144

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26e100b
Sequencer: return immediately if already initializing
bwesterb Oct 27, 2025
63a0b1a
dedup cache: add debug statements to see if head/tail keys are loaded
bwesterb Oct 27, 2025
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3 changes: 3 additions & 0 deletions crates/generic_log_worker/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -258,16 +258,19 @@ impl DedupCache {

// Load batches of cache entries from DO storage into the in-memory cache.
async fn load(&self) -> Result<()> {
log::info!("DedupCache: loading head");
let head = self
.storage
.get::<usize>(Self::FIFO_HEAD_KEY)
.await
.unwrap_or_default();
log::info!("DedupCache: loading tail");
let tail = self
.storage
.get::<usize>(Self::FIFO_TAIL_KEY)
.await
.unwrap_or_default();
log::info!("DedupCache: head and tail loaded");
let keys = (0..(tail - head)).map(Self::fifo_key).collect::<Vec<_>>();
let map = self.storage.get_multiple(keys).await?;
for value in map.values() {
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4 changes: 3 additions & 1 deletion crates/generic_log_worker/src/sequencer_do.rs
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Expand Up @@ -179,7 +179,9 @@ impl<L: LogEntry> GenericSequencer<L> {
// Initialize the durable object when it is started on a new machine (e.g., after eviction or a deployment).
async fn initialize(&self) -> Result<(), WorkerError> {
// This can be triggered by the alarm() or fetch() handlers, so lock state to avoid a race condition.
let _lock = self.init_mux.lock().await;
let _lock = self.init_mux.try_lock().map_err(|_| {
worker::Error::from("init_mux locked")
})?;
let name = &self.config.name;

if *self.initialized.borrow() {
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