Added ability to limit network connections

conf/modules.config

@@ -25,4 +25,8 @@ process {
             pattern: '*_versions.yml'
         ]
     }
+
+    withName: SRATOOLS_PREFETCH {
+        maxForks = params.max_jobs_with_network_connections
+    }
 }

nextflow.config

@@ -37,11 +37,14 @@ params {
     max_time                   = '1.h'
 
     // Schema validation default options
-    validationFailUnrecognisedParams = false
-    validationLenientMode            = false
-    validationSchemaIgnoreParams     = 'genomes,igenomes_base'
-    validationShowHiddenParams       = false
-    validate_params                  = true
+    validationFailUnrecognisedParams  = false
+    validationLenientMode             = false
+    validationSchemaIgnoreParams      = 'genomes,igenomes_base'
+    validationShowHiddenParams        = false
+    validate_params                   = true
+
+    // Options for limiting network activity
+    max_jobs_with_network_connections = 1
 }
 
 // Load base.config by default for all pipelines

nextflow_schema.json

@@ -190,6 +190,12 @@
                     "description": "Validation of parameters in lenient more.",
                     "hidden": true,
                     "help_text": "Allows string values that are parseable as numbers or booleans. For further information see [JSONSchema docs](https://github.com/everit-org/json-schema#lenient-mode)."
+                },
+                "max_jobs_with_network_connections": {
+                    "type": "integer",
+                    "default": 1,
+                    "description": "Maximum number of jobs with network connections allowed to run at once",
+                    "hidden": true
                 }
             }
         }