X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/549f4a1deddb41f6abbc493a660d9fb0976da91a..4d351f0d0c67093440663cee3b52421e3eba7d77:/services/api/script/crunch-dispatch.rb

diff --git a/services/api/script/crunch-dispatch.rb b/services/api/script/crunch-dispatch.rb
index 843fc0db66..b1c0e7d316 100755
--- a/services/api/script/crunch-dispatch.rb
+++ b/services/api/script/crunch-dispatch.rb
@@ -166,6 +166,10 @@ class Dispatcher
       cmd_args = nil
       case Server::Application.config.crunch_job_wrapper
       when :none
+        if @running.size > 0
+            # Don't run more than one at a time.
+            return
+        end
         cmd_args = []
       when :slurm_immediate
         nodelist = nodes_available_for_job(job)