diff --git a/index.js b/index.js
index 6042d941..4de40e10 100644
--- a/index.js
+++ b/index.js
@@ -81,14 +81,21 @@ class Main {
   }
 
   async waitOnStoreEvents() {
-    const bufferCopy = this.taskManager.retrieveCompleted();
-    await this.exporter.storeEvents(bufferCopy);
-    this.lastProcessedPosition = {
-      primaryKey: bufferCopy[bufferCopy.length - 1].primaryKey,
-      blockNumber: bufferCopy[bufferCopy.length - 1].blockNumber
-    };
-    await this.exporter.savePosition(this.lastProcessedPosition);
-    logger.info(`Progressed to position ${JSON.stringify(this.lastProcessedPosition)}, last confirmed Node block: ${this.worker.lastConfirmedBlock}`);
+    if (this.taskManager.buffer.length > 0) {
+      const bufferCopy = this.taskManager.retrieveCompleted();
+      await this.exporter.storeEvents(bufferCopy);
+      this.lastProcessedPosition = {
+        primaryKey: bufferCopy[bufferCopy.length - 1].primaryKey,
+        blockNumber: bufferCopy[bufferCopy.length - 1].blockNumber
+      };
+      await this.exporter.savePosition(this.lastProcessedPosition);
+      logger.info(`Progressed to position ${JSON.stringify(this.lastProcessedPosition)}, last confirmed Node block: ${this.worker.lastConfirmedBlock}`);
+    }
+
+    if (this.taskManager.queue.isPaused) {
+      this.taskManager.queue.start();
+      logger.info('Resuming the queue...');
+    }
   }
 
   async workLoop() {
@@ -102,7 +109,7 @@ class Main {
       this.worker.lastExportTime = Date.now();
 
       this.lastProcessedPosition = this.worker.getLastProcessedPosition();
-      if (this.taskManager.buffer.length > 0) await this.waitOnStoreEvents();
+      await this.waitOnStoreEvents();
       this.updateMetrics();
 
       if (this.shouldWork) {
diff --git a/lib/constants.js b/lib/constants.js
index 22a862cb..afefef08 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -3,6 +3,7 @@ const CONFIG_PATH = process.env.CONFIG_PATH;
 const START_BLOCK = parseInt(process.env.START_BLOCK || '0') - 1;
 const EXPORT_BLOCKS_LIST = process.env.EXPORT_BLOCKS_LIST || false;
 const PQUEUE_MAX_SIZE = parseInt(process.env.PQUEUE_MAX_SIZE || '100');
+const MAX_TASK_DATA_KEYS = parseInt(process.env.PQUEUE_MAX_SIZE || '10');
 const MAX_CONCURRENT_REQUESTS = parseInt(process.env.MAX_CONCURRENT_REQUESTS || '1');
 const BLOCK_INTERVAL = parseInt(process.env.BLOCK_INTERVAL || '50');
 const START_PRIMARY_KEY = parseInt(process.env.START_PRIMARY_KEY || '-1');
@@ -17,6 +18,7 @@ module.exports = {
   PQUEUE_MAX_SIZE,
   START_PRIMARY_KEY,
   EXPORT_BLOCKS_LIST,
+  MAX_TASK_DATA_KEYS,
   EXPORT_TIMEOUT_MLS,
   MAX_CONCURRENT_REQUESTS,
   EXPORT_BLOCKS_LIST_MAX_INTERVAL
diff --git a/lib/task_manager.js b/lib/task_manager.js
index cc1fc9c1..142bccc8 100644
--- a/lib/task_manager.js
+++ b/lib/task_manager.js
@@ -1,3 +1,6 @@
+const { logger } = require('./logger');
+const { MAX_TASK_DATA_KEYS } = require('./constants');
+
 class TaskManager {
   constructor() {
     this.queue;
@@ -65,6 +68,11 @@ class TaskManager {
   handleNewData(interval, newTransformedData) {
     this.taskData[interval.fromBlock] = { toBlock: interval.toBlock, data: newTransformedData };
     this.#pushAllEligable();
+
+    if (Object.keys(this.taskData).length >= MAX_TASK_DATA_KEYS) {
+      this.queue.pause();
+      logger.info('Pausing the queue...');
+    }
   }
 
   /**