Skip to end of metadata
Go to start of metadata

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 5 Current »

Follow the PBS Pro Design Document Guidelines.

Overview

In order for PTL to work on Cray's new Shasta systems, some things have to change.

Glossary

Userhosts - hosts that users can log into and submit jobs from. Root does not have ssh access to these hosts. Each user gets their own userhost.

Technical Details

PTL will run where the server is running.

PTL needs to know if we're running on Shasta.

The Shasta hook should be loaded and enabled before running any test on Shasta.

Non-root commands must be run from userhosts. In order to do this, PTL must support running user commands from multiple hosts.

The users do not exist where the server is running on Shasta, so the user-exists check should be changed to check if the PbsUser instance has a userhost set: if it does, check that userhost instead.

Since remote copy doesn't work, we need to set $usecp to tell the moms to do a local copy to the shared directory.

Changes:

  1. Load the Shasta hook in Server.revert_to_defaults().
  2. Change usages of Cray to XC, since tests that used to skip on Cray machines could run on Shasta
  3. Add is_Shasta() to the MoM class.
    PTL will look for a file at path /etc/cray/xname and if found return True.
  4. Change DshUtils.getplatform() to return 'shasta' if on a shasta
    PTL will look for a file at path /etc/cray/xname and if found return "shasta".
  5. Add an optional hostname and port to the users lists.
    The format of this parameter will be -p=test-users=username[@ip[+port]][:username2[@ip2[+port2]]]
    If a command needs to be run as a user, it will use the ip and port if they exist, otherwise it will fall back onto the server's client.
  6. Change usage of ssh to connect to the remote host as the intended user, instead of as root
    Instead of ssh userhost sudo -u user <cmd>, it will be ssh user@userhost <cmd>
  7. Change PBSTestSuite.check_users_exist to check the user's userhost, if it exists.
    Pass PbsUser.userhost to the check_user_exists() call
  8. Set $usecp in mom_priv/config




OSS Site Map

Project Documentation Main Page

Developer Guide Pages


  • No labels