@jetit/publisher - npm Package Compare versions

Comparing version 5.3.2 to 5.4.0

package.json

 {
   "name": "@jetit/publisher",
-  "version": "5.3.2",
+  "version": "5.4.0",
   "type": "commonjs",
   "dependencies": {
-    "@jetit/id": "^0.0.12",
+    "@jetit/id": "^0.0.13",
     "ioredis": "^5.3.0",
@@ -8,0 +8,0 @@ "rxjs": "^7.8.0",

src/lib/redis/streams.d.ts

@@ -203,2 +203,6 @@ import { Observable } from 'rxjs';
     processStoredEvents(): Promise<void>;
+    /**
+     * Acknowledges a message and updates the last acknowledged message ID.
+     * This is used to track cleanup progress and ensure we don't delete unprocessed messages.
+     */
     acknowledgeMessage(ackKey: string): Promise<void>;
@@ -205,0 +209,0 @@ private frameMessageKey;

src/lib/redis/streams.js

@@ -296,7 +296,11 @@ "use strict";
     listenInternals(eventName, subscriptionId, eventFilter, filterKeepAlive = 24 * 60 * 60 * 1000, publishOnceGuarantee = false, externalAcknowledgement = false) {
-        if (!this.subscriptions.has(eventName)) {
-            this.subscriptions.set(eventName, new Map());
+        // Get or create subscription map for this event
+        const eventSubscriptions = this.subscriptions.get(eventName) || new Map();
+        const isNewSubscription = !this.subscriptions.has(eventName);
+        if (isNewSubscription) {
+            this.subscriptions.set(eventName, eventSubscriptions);
         }
         const bs = new rxjs_1.BehaviorSubject(null);
-        const subscription = {
+        // Making the subscription Immutable
+        const subscription = Object.freeze({
             subject: bs,
@@ -306,14 +310,34 @@ filter: eventFilter,
             keepAlive: filterKeepAlive,
-        };
-        this.subscriptions.get(eventName).set(subscriptionId, subscription);
-        const timer = (0, rxjs_1.interval)(10000).subscribe(async () => {
-            /** Clear earlier unprocessed messages. Runs every 10 seconds */
-            await processMessage(this.redisGroups, '0', new tracker_1.MetricsTracker(), false);
         });
+        eventSubscriptions.set(subscriptionId, subscription);
+        // Return early if not first subscription
+        if (!isNewSubscription) {
+            return bs.asObservable().pipe((0, rxjs_1.skip)(1));
+        }
+        const cleanupInterval = 10000; // 10 seconds
+        const timer = (0, rxjs_1.interval)(cleanupInterval).subscribe({
+            next: async () => {
+                try {
+                    await processMessage(this.redisGroups, '0', new tracker_1.MetricsTracker(), false);
+                }
+                catch (error) {
+                    logger_1.PUBLISHER_LOGGER.error('Error in running recurring cleanup task:', error);
+                }
+            },
+            error: (error) => {
+                logger_1.PUBLISHER_LOGGER.error('Fatal error in cleanup timer:', error);
+            },
+        });
+        // Create observable with proper cleanup
         const observable = bs.asObservable().pipe((0, rxjs_1.skip)(1), (0, rxjs_1.finalize)(() => {
-            /** Cleanup timer */
             timer.unsubscribe();
+            // Clean up subscription on completion
+            this.removeSubscription(eventName, subscriptionId);
         }));
-        const streamName = `${eventName}:${this.consumerGroupName}`;
         const processMessage = async (redisClient, messageId, tracker, multicast = false, processPending = false) => {
+            // Skip processing if subscription was removed. This is needed because the processing is independent of the subscription
+            if (!this.subscriptions.has(eventName)) {
+                return;
+            }
+            const streamName = `${eventName}:${this.consumerGroupName}`;
             logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: Processing message ${messageId} for ${streamName}`);
@@ -339,31 +363,46 @@ try {
                 let eventData;
-                /**
-                 * Both multicast messages and pending messages cannot be read by xreadgroup
-                 * Multicast messages should not be claimed by a single consumer. And pending messages
-                 * are usually behind in the stream so XREADGROUP will not read them and hence
-                 * they need to be read using XRANGE.
-                 */
                 tracker.startRedisOperation();
-                if (multicast || processPending) {
-                    const messages = await redisClient.xrange(streamName, messageId, messageId);
-                    if (messages && messages.length) {
-                        try {
-                            eventData = JSON.parse(messages[0][1][1]);
+                try {
+                    /**
+                     * Both multicast messages and pending messages cannot be read by xreadgroup
+                     * Multicast messages should not be claimed by a single consumer. And pending messages
+                     * are usually behind in the stream so XREADGROUP will not read them and hence
+                     * they need to be read using XRANGE.
+                     */
+                    if (multicast || processPending) {
+                        const messages = await redisClient.xrange(streamName, messageId, messageId);
+                        if (messages?.length) {
+                            try {
+                                eventData = JSON.parse(messages[0][1][1]);
+                            }
+                            catch (error) {
+                                logger_1.PUBLISHER_LOGGER.error(`JSON parsing failed for message: ${messages[0][1][1]}`);
+                                return;
+                            }
                         }
-                        catch (e) {
-                            console.error(`JSON parsing failed for the following message ${messages[0][1][1]} in the publisher.`);
-                        }
                     }
-                }
-                else {
-                    const messages = (await redisClient.xreadgroup('GROUP', this.consumerGroupName, this.instanceId, 'COUNT', 1, 'STREAMS', streamName, '>'));
-                    if (messages && messages.length) {
-                        if (messageId === '0') {
-                            messageId = messages[0][1][0][0];
-                            logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: Reprocessing unprocessed message with id: ${messageId}`);
+                    else {
+                        const messages = (await redisClient.xreadgroup('GROUP', this.consumerGroupName, this.instanceId, 'COUNT', 1, 'STREAMS', streamName, '>'));
+                        if (messages?.length) {
+                            if (messageId === '0') {
+                                messageId = messages[0][1][0][0];
+                                logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: Reprocessing unprocessed message with id: ${messageId}`);
+                            }
+                            try {
+                                eventData = JSON.parse(messages[0][1][0][1][1]);
+                            }
+                            catch (error) {
+                                logger_1.PUBLISHER_LOGGER.error(`JSON parsing failed for message: ${messages[0][1][0][1][1]}`);
+                                return;
+                            }
                         }
-                        eventData = JSON.parse(messages[0][1][0][1][1]);
                     }
                 }
-                tracker.endRedisOperation();
+                catch (error) {
+                    logger_1.PUBLISHER_LOGGER.error('Error retrieving or parsing event data:', error);
+                    return;
+                }
+                finally {
+                    tracker.endRedisOperation();
+                }
                 tracker.startProcessing();
@@ -383,29 +422,38 @@ if (eventData) {
                         if (subscriptions) {
+                            const currentTime = Date.now();
                             const subscriptionEntries = Array.from(subscriptions.entries());
-                            for (let i = 0; i < subscriptionEntries.length; i++) {
-                                const [subId, sub] = subscriptionEntries[i];
-                                if (!sub.filter || sub.filter(eventData)) {
-                                    sub.subject.next({ ...eventData, ackKey });
-                                    sub.lastMatchTime = Date.now();
+                            // Process subscriptions in parallel for better performance
+                            await Promise.all(subscriptionEntries.map(async ([subId, sub]) => {
+                                try {
+                                    if (!sub.filter || sub.filter(eventData)) {
+                                        sub.subject.next({ ...eventData, ackKey });
+                                        sub.lastMatchTime = currentTime;
+                                    }
+                                    else if (currentTime - sub.lastMatchTime > sub.keepAlive) {
+                                        logger_1.PUBLISHER_LOGGER.error(`PUBLISHER: No matching events for ${eventName} (Subscription ${subId}) in the last ${sub.keepAlive / 1000 / 60 / 60} hours`);
+                                        sub.lastMatchTime = currentTime;
+                                    }
                                 }
-                                else if (Date.now() - sub.lastMatchTime > sub.keepAlive) {
-                                    /**
-                                     * Reset the lastMatch time every day by default. For now only
-                                     * log the data. Should add functionality to remove the filter
-                                     * if its not used at all to gain minor improvements in
-                                     * performace
-                                     */
-                                    logger_1.PUBLISHER_LOGGER.error(`PUBLISHER: No matching events for ${eventName} (Subscription ${subId}) in the last ${sub.keepAlive / 1000 / 60 / 60} hours`);
-                                    sub.lastMatchTime = Date.now();
+                                catch (error) {
+                                    // Log error but don't fail entire processing
+                                    logger_1.PUBLISHER_LOGGER.error(`Error processing subscription ${subId}:`, error);
                                 }
-                            }
+                            }));
                         }
-                        if (!externalAcknowledgement)
+                        // Acknowledge message if needed
+                        if (!externalAcknowledgement) {
                             await this.acknowledgeMessage(ackKey);
+                        }
+                        // Update metrics
+                        const currentTime = Date.now();
+                        tracker.incrementMessageRate('subscribe', eventData.eventName);
+                        const processingTime = currentTime - eventData.createdAt;
+                        tracker.addProcessingTime(processingTime);
+                        tracker.setConsumerLag(this.consumerGroupName, currentTime - eventData.createdAt);
                     }
-                    catch (processingError) {
-                        logger_1.PUBLISHER_LOGGER.error(`Processing error for message ${messageId}:`, processingError);
+                    catch (error) {
+                        logger_1.PUBLISHER_LOGGER.error(`Processing error for message ${messageId}:`, error);
                         const dlqEvent = {
                             ...eventData,
-                            failureReason: processingError.message,
+                            failureReason: error.message,
                             retryCount: (eventData.retryCount || 0) + 1,
@@ -417,8 +465,4 @@ originalStream: streamName,
                         await this.dlq.addToDLQ(dlqEvent);
+                        // Don't rethrow to prevent message loss
                     }
-                    tracker.incrementMessageRate('subscribe', eventData.eventName);
-                    const processingTime = Date.now() - eventData.createdAt;
-                    tracker.addProcessingTime(processingTime);
-                    const lag = Date.now() - eventData.createdAt;
-                    tracker.setConsumerLag(this.consumerGroupName, lag);
                 }
@@ -429,3 +473,3 @@ else {
                 tracker.endProcessing();
-                /** Process Unprocessed Message if this is a main tree, otherwise limit to processing 100 messages that are unacknowledged */
+                /** Process Unprocessed Messages with rate limiting */
                 if (!processPending) {
@@ -437,6 +481,8 @@ const unprocessedMessageIds = await (0, utils_1.getUnacknowledgedMessages)(redisClient, this.consumerGroupName, streamName, this.instanceId);
                     }
-                    for (const id of unprocessedMessageIds.messageIds) {
-                        logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: Reprocessing unprocessed message with id: ${id}`);
+                    // Process messages with rate limiting
+                    const processWithDelay = async (id, index) => {
+                        await new Promise((resolve) => setTimeout(resolve, index * 20));
                         await processMessage(redisClient, id, new tracker_1.MetricsTracker(), multicast, true);
-                    }
+                    };
+                    unprocessedMessageIds.messageIds.map((id, index) => processWithDelay(id, index));
                 }
@@ -541,34 +587,23 @@ }
         const streamName = `${eventName}:${this.consumerGroupName}`;
-        const cleanupThreshold = Date.now() - interval;
-        const CHUNK_SIZE = 10000; // Process messages in chunks to avoid memory issues
+        const lastAckKey = `last_ack:${streamName}`;
+        const oneHourAgo = Date.now() - interval;
         try {
-            // Get pending info for this consumer group once
-            const pendingInfo = await this.redisGroups.xpending(streamName, this.consumerGroupName);
-            const hasPendingMessages = pendingInfo && pendingInfo[0] > 0;
-            let lastId = '-'; // Start from the beginning of the stream
-            while (true) {
-                // Get a chunk of messages
-                const messages = await this.redisGroups.xrange(streamName, lastId, cleanupThreshold.toString(), 'COUNT', CHUNK_SIZE);
-                if (!messages || messages.length === 0)
-                    break;
-                // Update lastId for next iteration (exclusive)
-                lastId = messages[messages.length - 1][0];
-                if (hasPendingMessages) {
-                    // If there are pending messages, we need to check each message
-                    const pendingDetails = (await this.redisGroups.xpending(streamName, this.consumerGroupName, lastId, '+', CHUNK_SIZE, this.instanceId));
-                    const pendingIds = new Set(pendingDetails.map((detail) => detail[0]));
-                    const acknowledgedIds = messages.map((msg) => msg[0]).filter((id) => !pendingIds.has(id));
-                    if (acknowledgedIds.length > 0) {
-                        await this.redisGroups.xdel(streamName, ...acknowledgedIds);
-                    }
-                }
-                else {
-                    // If no pending messages, we can safely delete all messages in this chunk
-                    const messageIds = messages.map((msg) => msg[0]);
-                    await this.redisGroups.xdel(streamName, ...messageIds);
-                }
-                // If we got less than CHUNK_SIZE messages, we've reached the end
-                if (messages.length < CHUNK_SIZE)
-                    break;
+            // Get consumer group info to check if consumers are active
+            const groupInfo = (await this.redisGroups.xinfo('GROUPS', streamName));
+            // If no active consumers, leave stream as is
+            if (!groupInfo || !groupInfo.some((group) => group.consumers > 0)) {
+                logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: No active consumers for ${streamName}, leaving stream as is`);
+                return;
             }
+            // Get last acknowledged message ID
+            const lastAckId = await this.redisGroups.get(lastAckKey);
+            if (!lastAckId) {
+                logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: No acknowledged messages for ${streamName}`);
+                return;
+            }
+            // Extract timestamp from message ID
+            const [timestamp] = lastAckId.split('-').map(Number);
+            const cleanupThreshold = Math.min(timestamp, oneHourAgo);
+            await this.redisGroups.xtrim(streamName, 'MINID', cleanupThreshold);
+            logger_1.PUBLISHER_LOGGER.log(`PUBLISHER: Cleaned up messages before last acknowledged message ${timestamp} from ${streamName}`);
         }
@@ -689,5 +724,17 @@ catch (error) {
     }
+    /**
+     * Acknowledges a message and updates the last acknowledged message ID.
+     * This is used to track cleanup progress and ensure we don't delete unprocessed messages.
+     */
     async acknowledgeMessage(ackKey) {
         const { streamName, messageId } = this.demergeMessageKey(ackKey);
-        await this.redisGroups.xack(streamName, this.consumerGroupName, messageId);
+        const lastAckKey = `last_ack:${streamName}`;
+        try {
+            // Update last acknowledged ID and acknowledge message atomically
+            await Promise.all([this.redisGroups.xack(streamName, this.consumerGroupName, messageId), this.redisGroups.set(lastAckKey, messageId)]);
+        }
+        catch (error) {
+            logger_1.PUBLISHER_LOGGER.error(`Error acknowledging message ${messageId} for ${streamName}:`, error);
+            throw error;
+        }
     }
@@ -694,0 +741,0 @@ frameMessageKey(streamName, messageId) {

No alert changes

Improved metrics

Total package byte prevSize

118574

1.87%

Lines of code

2463

2.11%

Dependency changes

• + Added

  @jetit/id@0.0.13
  (transitive)

• + Added

  nanoid@5.1.5
  (transitive)

• - Removed

  @jetit/id@0.0.12
  (transitive)

• - Removed

  nanoid@3.3.11
  (transitive)

• - Removed

  tslib@1.14.1
  (transitive)

• Updated

  @jetit/id@^0.0.13