fix: Use throw instead of reject in broker facade

yarn-project/prover-client/src/orchestrator/orchestrator.ts

@@ -326,7 +326,7 @@ export class ProvingOrchestrator implements EpochProver {
     }
 
     // And build the block header
-    logger.verbose(`Block ${provingState.globalVariables.blockNumber} completed. Assembling header.`);
+    logger.verbose(`Block ${blockNumber} completed. Assembling header.`);
     await this.buildBlock(provingState, expectedHeader);
 
     // If the proofs were faster than the block building, then we need to try the block root rollup again here
@@ -1196,10 +1196,13 @@ export class ProvingOrchestrator implements EpochProver {
           return await this.prover.getAvmProof(inputs, signal, provingState.epochNumber);
         } catch (err) {
           if (process.env.AVM_PROVING_STRICT) {
+            logger.error(`Error thrown when proving AVM circuit with AVM_PROVING_STRICT on`, err);
             throw err;
           } else {
             logger.warn(
-              `Error thrown when proving AVM circuit, but AVM_PROVING_STRICT is off, so faking AVM proof and carrying on. Error: ${err}.`,
+              `Error thrown when proving AVM circuit but AVM_PROVING_STRICT is off. Faking AVM proof and carrying on. ${inspect(
+                err,
+              )}.`,
             );
             return {
               proof: makeEmptyRecursiveProof(AVM_PROOF_LENGTH_IN_FIELDS),

yarn-project/prover-client/src/proving_broker/caching_broker_facade.ts

@@ -64,6 +64,7 @@ export class CachingBrokerFacade implements ServerCircuitProver {
   ): Promise<ProvingJobResultsMap[T]> {
     // first try the cache
     let jobEnqueued = false;
+    let jobRejected = undefined;
     try {
       const cachedResult = await this.cache.getProvingJobStatus(id);
       if (cachedResult.status !== 'not-found') {
@@ -78,8 +79,7 @@ export class CachingBrokerFacade implements ServerCircuitProver {
           this.log.warn(`Cached result type mismatch for job=${id}. Expected=${type} but got=${output.type}`);
         }
       } else if (cachedResult.status === 'rejected') {
-        // prefer returning a rejected promises so that we don't trigger the catch block below
-        return Promise.reject(new Error(cachedResult.reason));
+        jobRejected = cachedResult.reason ?? 'Job rejected for unknown reason';
       } else if (cachedResult.status === 'in-progress' || cachedResult.status === 'in-queue') {
         jobEnqueued = true;
       } else {
@@ -89,6 +89,10 @@ export class CachingBrokerFacade implements ServerCircuitProver {
       this.log.warn(`Failed to get cached proving job id=${id}: ${err}. Re-running job`);
     }
 
+    if (jobRejected) {
+      throw new Error(jobRejected);
+    }
+
     if (!jobEnqueued) {
       try {
         const inputsUri = await this.proofStore.saveProofInput(id, type, inputs);
@@ -142,10 +146,10 @@ export class CachingBrokerFacade implements ServerCircuitProver {
         if (output.type === type) {
           return output.result as ProvingJobResultsMap[T];
         } else {
-          return Promise.reject(new Error(`Unexpected proof type: ${output.type}. Expected: ${type}`));
+          throw new Error(`Unexpected proof type: ${output.type}. Expected: ${type}`);
         }
       } else {
-        return Promise.reject(new Error(result.reason));
+        throw new Error(result.reason);
       }
     } finally {
       signal?.removeEventListener('abort', abortFn);

yarn-project/prover-node/src/job/epoch-proving-job.ts

@@ -65,26 +65,32 @@ export class EpochProvingJob {
   public async run() {
     const epochNumber = Number(this.epochNumber);
     const epochSize = this.blocks.length;
-    const firstBlockNumber = this.blocks[0].number;
-    this.log.info(`Starting epoch proving job`, { firstBlockNumber, epochSize, epochNumber, uuid: this.uuid });
+    const [fromBlock, toBlock] = [this.blocks[0].number, this.blocks.at(-1)!.number];
+    this.log.info(`Starting epoch ${epochNumber} proving job with blocks ${fromBlock} to ${toBlock}`, {
+      fromBlock,
+      toBlock,
+      epochSize,
+      epochNumber,
+      uuid: this.uuid,
+    });
     this.state = 'processing';
     const timer = new Timer();
 
     const { promise, resolve } = promiseWithResolvers<void>();
     this.runPromise = promise;
 
     try {
-      this.prover.startNewEpoch(epochNumber, firstBlockNumber, epochSize);
+      this.prover.startNewEpoch(epochNumber, fromBlock, epochSize);
 
       await asyncPool(this.config.parallelBlockLimit, this.blocks, async block => {
         const globalVariables = block.header.globalVariables;
         const txHashes = block.body.txEffects.map(tx => tx.txHash);
         const txCount = block.body.numberOfTxsIncludingPadded;
         const l1ToL2Messages = await this.getL1ToL2Messages(block);
-        const txs = await this.getTxs(txHashes);
+        const txs = await this.getTxs(txHashes, block.number);
         const previousHeader = await this.getBlockHeader(block.number - 1);
 
-        this.log.verbose(`Starting block processing`, {
+        this.log.verbose(`Starting processing block ${block.number}`, {
           number: block.number,
           blockHash: block.hash().toString(),
           lastArchive: block.header.lastArchive.root,
@@ -104,7 +110,7 @@ export class EpochProvingJob {
         const publicProcessor = this.publicProcessorFactory.create(db, previousHeader, globalVariables);
         await this.processTxs(publicProcessor, txs, txCount);
         await db.close();
-        this.log.verbose(`Processed all txs for block`, {
+        this.log.verbose(`Processed all ${txs.length} txs for block ${block.number}`, {
           blockNumber: block.number,
           blockHash: block.hash().toString(),
           uuid: this.uuid,
@@ -116,17 +122,16 @@ export class EpochProvingJob {
 
       this.state = 'awaiting-prover';
       const { publicInputs, proof } = await this.prover.finaliseEpoch();
-      this.log.info(`Finalised proof for epoch`, { epochNumber, uuid: this.uuid, duration: timer.ms() });
+      this.log.info(`Finalised proof for epoch ${epochNumber}`, { epochNumber, uuid: this.uuid, duration: timer.ms() });
 
       this.state = 'publishing-proof';
-      const [fromBlock, toBlock] = [this.blocks[0].number, this.blocks.at(-1)!.number];
       await this.publisher.submitEpochProof({ fromBlock, toBlock, epochNumber, publicInputs, proof });
       this.log.info(`Submitted proof for epoch`, { epochNumber, uuid: this.uuid });
 
       this.state = 'completed';
       this.metrics.recordProvingJob(timer);
     } catch (err) {
-      this.log.error(`Error running epoch prover job`, err, { uuid: this.uuid });
+      this.log.error(`Error running epoch ${epochNumber} prover job`, err, { uuid: this.uuid, epochNumber });
       this.state = 'failed';
     } finally {
       await this.cleanUp(this);
@@ -149,13 +154,15 @@ export class EpochProvingJob {
     return this.l2BlockSource.getBlockHeader(blockNumber);
   }
 
-  private async getTxs(txHashes: TxHash[]): Promise<Tx[]> {
+  private async getTxs(txHashes: TxHash[], blockNumber: number): Promise<Tx[]> {
     const txs = await Promise.all(
       txHashes.map(txHash => this.coordination.getTxByHash(txHash).then(tx => [txHash, tx] as const)),
     );
     const notFound = txs.filter(([_, tx]) => !tx);
     if (notFound.length) {
-      throw new Error(`Txs not found: ${notFound.map(([txHash]) => txHash.toString()).join(', ')}`);
+      throw new Error(
+        `Txs not found for block ${blockNumber}: ${notFound.map(([txHash]) => txHash.toString()).join(', ')}`,
+      );
     }
     return txs.map(([_, tx]) => tx!);
   }