delete old templates and jobs

src/models/MiningJob.ts

@@ -18,7 +18,7 @@ export class MiningJob {
 
     public jobTemplateId: string;
     public networkDifficulty: number;
-
+    public creation: number;
 
     constructor(
         private network: bitcoinjs.networks.Network,
@@ -27,6 +27,7 @@ export class MiningJob {
         jobTemplate: IJobTemplate
     ) {
 
+        this.creation = new Date().getTime();
         this.jobTemplateId = jobTemplate.blockData.id;
 
         this.coinbaseTransaction = this.createCoinbaseTransaction(payoutInformation, jobTemplate.blockData.coinbasevalue);

src/models/StratumV1Client.ts

@@ -477,9 +477,7 @@ export class StratumV1Client {
 
         const job = this.stratumV1JobsService.getJobById(submission.jobId);
 
-
-
-        // a miner may submit a job that doesn't exist anymore if it was removed by a new block notification
+        // a miner may submit a job that doesn't exist anymore if it was removed by a new block notification (or expired, 5 min)
         if (job == null) {
             const err = new StratumErrorMessage(
                 submission.id,