MCP-771: [MCP-608] Multiple consumers prototype development

Author: adifucan

app/code/Magento/MessageQueue/Console/StartConsumerCommand.php

@@ -76,6 +76,12 @@ protected function execute(InputInterface $input, OutputInterface $output)
         }
 
         $singleThread = $input->getOption(self::OPTION_SINGLE_THREAD);
+        $multiProcess = $input->getOption(self::OPTION_MULTI_PROCESS);
+
+        if ($multiProcess && !$this->lockManager->lock(md5($consumerName . '-' . $multiProcess),0)) { //phpcs:ignore
+            $output->writeln('<error>Consumer with the same name is running</error>');
+            return \Magento\Framework\Console\Cli::RETURN_FAILURE;
+        }
 
         if ($singleThread && !$this->lockManager->lock(md5($consumerName),0)) { //phpcs:ignore
             $output->writeln('<error>Consumer with the same name is running</error>');
@@ -86,7 +92,13 @@ protected function execute(InputInterface $input, OutputInterface $output)
 
         $consumer = $this->consumerFactory->get($consumerName, $batchSize);
         $consumer->process($numberOfMessages);
-        $this->lockManager->unlock(md5($consumerName)); //phpcs:ignore
+
+        if ($singleThread) {
+            $this->lockManager->unlock(md5($consumerName)); //phpcs:ignore
+        }
+        if ($multiProcess) {
+            $this->lockManager->unlock(md5($consumerName . '-' . $multiProcess)); //phpcs:ignore
+        }
 
         return \Magento\Framework\Console\Cli::RETURN_SUCCESS;
     }

app/code/Magento/MessageQueue/Model/Cron/ConsumersRunner.php

@@ -128,7 +128,7 @@ public function run()
                 $numberOfProcesses = $multipleProcesses[$consumer->getName()];
 
                 for ($i = 1; $i <= $numberOfProcesses; $i++) {
-                    if ($this->lockManager->isLocked(md5($consumer->getName()))) { //phpcs:ignore
+                    if ($this->lockManager->isLocked(md5($consumer->getName() . '-' . $i))) { //phpcs:ignore
                         continue;
                     }
                     $arguments = [
@@ -146,7 +146,6 @@ public function run()
 
                     $this->shellBackground->execute($command, $arguments);
                 }
-                $this->lockManager->lock(md5($consumer->getName()));
             } else {
                 if ($this->lockManager->isLocked(md5($consumer->getName()))) { //phpcs:ignore
                     return false;