<p>CMS is running 'at pledge' due to being limited for LHCb to be fixed and they are now running 200% of their pledge. Most CMS-only nodes are empty.&nbsp;</p>

<p>SAM tests looking much better this week. No change or fix was applied. However, I see a large number of job failures and very low efficiency. The failures are mostly FileOpen or FileRead. I have an example 'step chain' job to try - i.e. a multi-step job. I want to try this on one of the empty CMS-only nodes, hopefully this week.&nbsp;</p>

<p>After talking to Chris Brew, we think there is a problem with the /etc/hosts file for the CMS docker config. He says you can't do this with the same IP address:</p>

<p>172.28.1.1 xrootd.echo.stfc.ac.uk</p>

<p>172.28.1.1 ceph-gw10.gridpp.rl.ac.uk</p>

<p>172.28.1.1 ceph-gw11.gridpp.rl.ac.uk</p>

<p>He said I should ask for a change to:&nbsp;</p>

<p>172.28.1.1 xrootd.echo.stfc.ac.uk ceph-gw10.gridpp.rl.ac.uk ceph-gw11.gridpp.rl.ac.uk</p>