diff --git a/mistral/utils/__init__.py b/mistral/utils/__init__.py
index 98c8fc43a..e33513c0d 100644
--- a/mistral/utils/__init__.py
+++ b/mistral/utils/__init__.py
@@ -134,3 +134,15 @@ def get_file_list(directory):
 
     return [path.join(base_path, f) for f in os.listdir(base_path)
             if path.isfile(path.join(base_path, f))]
+
+
+def cut(data, length=100):
+    if not data:
+        return data
+
+    string = str(data)
+
+    if len(string) > length:
+        return "%s..." % string[:length]
+    else:
+        return string
diff --git a/mistral/workflow/base.py b/mistral/workflow/base.py
index a90293419..ab67a4228 100644
--- a/mistral/workflow/base.py
+++ b/mistral/workflow/base.py
@@ -18,6 +18,7 @@ from oslo.config import cfg
 
 from mistral import exceptions as exc
 from mistral.openstack.common import log as logging
+from mistral import utils
 from mistral.workbook import parser as spec_parser
 from mistral.workflow import data_flow
 from mistral.workflow import states
@@ -78,9 +79,12 @@ class WorkflowHandler(object):
 
         wf_trace_msg += "%s" % task_db.state
         if task_db.state == states.ERROR:
-            WF_TRACE.info(wf_trace_msg + ", error = %s]" % raw_result.error)
+            wf_trace_msg += ", error = %s]" % utils.cut(raw_result.error)
+            WF_TRACE.info(wf_trace_msg)
         else:
-            WF_TRACE.info(wf_trace_msg + ", result = %s]" % raw_result.data)
+            wf_trace_msg += ", result = %s]" % utils.cut(raw_result.data)
+
+        WF_TRACE.info(wf_trace_msg)
 
         task_db.output =\
             data_flow.evaluate_task_output(task_spec, raw_result)