I get many of these when running multiple workflows at the same time, all logging to the same MySQL backend database.

• wf_uuid : 43ba7161-4848-4f2e-92d8-df9488b79b6f
• ip : 10.125.6.247
• exec_job_id : stage_in_remote_Clemson_2
• hostname : node1505.palmetto.clemson.edu
• site : Clemson
• ts : 1308864049.0
• uname : linux-2.6.18-194.17.1.el5-x86_64
• host_id : None
• event : stampede.job_inst.host.info
  : (IntegrityError) (1062, \"Duplicate entry 'Clemson-node1505.palmetto.clemson.edu-10.125.6.247' for key 'UNIQUE_HOST'\") 'INSERT INTO host (site, hostname, ip, uname, total_memory) VALUES (%s, %s, %s, %s, %s)' ('Clemson', 'node1505.palmetto.clemson.edu', '10.125.6.247', 'linux-2.6.18-194.17.1.el5-x86_64', '33734758400')"