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IT Briefing Agenda 9/15/05

IT Briefing Agenda 9/15/05. Various Updates CM Demo SS Password Reset SMTP-Auth & Eagle Mail Update NetCom Q&A. Karen Jenkins Laura Moriarty Marcy Alexander Ken Guyton Paul Petersen. General Updates. Karen Jenkins. General Updates. Microsoft Agreement

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IT Briefing Agenda 9/15/05

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  1. IT Briefing Agenda 9/15/05 • Various Updates • CM Demo • SS Password Reset • SMTP-Auth & Eagle Mail Update • NetCom Q&A • Karen Jenkins • Laura Moriarty • Marcy Alexander • Ken Guyton • Paul Petersen

  2. General Updates Karen Jenkins

  3. General Updates • Microsoft Agreement • Should have details presented in Oct. or Nov. by Wade Sanner • Working on getting price down, healthcare • IT Alert (first phase) • New process to communicate service outages and performance problems • Existing listserv’s will be replaced with IT-Alert@listserv.cc.emory.edu • Please subscribe if you wish to receive these email notifications

  4. General Updates (cont.) • Premier Support • Lines are in … waiting on filling Stu’s position so it is fully staffed before rollout • Oracle names to OID • Didn’t shut down onames on 8/1 • Will definitely shut down on 9/30! • Convert users using tool on Software Express • Eagle mail client polling • Please work with your users to change polling to 10+ minutes • Sent list to 21 local support teams using Manage IT …..

  5. …you were not alone …

  6. Change Management Demo Laura Moriarty

  7. Self-Service Password Reset Marcy Alexander

  8. Self-Service Pwd Change • Business process defined by 4/04 • Technical team wrote initial code and code by 8/04 • Code revised to new specs 11/04 • Template built 4/05 • Production 6/05 • Ready for marketing 9/05

  9. Self-Service Pwd Change • Goal of initiative – provide customer self-service tool to manage account access without HD intervention

  10. Self-Service Pwd Change • https://passwordtest.service.emory.edu • test url against production environment – will migrate to password.service.emory.edu • Maintenance Weekend 9/18

  11. Eagle Mail Performance An opportunity to make it faster Update September 2005 The UNIX Group, Technical Services, ITD

  12. Architecture • Eagle mail consists of three services • Relay • Delivery • Reading

  13. Virus Architecture LDAP routing other svrs Relay Spam disk 2 4 Read/Deliv firewall 6 IMAP proxy 3 Relay Webmail 4 3 clients

  14. The Situation Users per server 100% CPU Utilization 90% 90% 95% 60% 50% 50% 1 2 3 4 5 6 Read/Delivery Servers

  15. The Situation Users per server 100% CPU Utilization 90% 90% 95% 12851 12787 60% 8304 50% 50% 4157 97 88 1 2 3 4 5 6 Read/Delivery Servers

  16. Conclusions from Last Time • High-frequency SELECTs are killing us

  17. Hypothesis • When clients check for new email they send a SELECT • (They should send a NOOP) • Users are setting their clients to check for email every minute

  18. Final Notes • Webmail checks every five minutes (and does use SELECT) • Some clients have a drop-down menu to select this time (1-min, 5-min, etc.)

  19. Our Plea • See if your users are polling < 5 min • 10 min is better • You can always manually check for new email • Help them change their polling time if needed

  20. New Data • We are logging SELECTs • More analysis

  21. Something Funny • A funny thing happened on the way to the user-migration fest... • A familiar name showed up

  22. And a surprise • He only uses webmail

  23. New Data • Webmail does a SELECT every five minutes • But does an EXAMINE as soon as possible after the SELECT • How can we see this?

  24. Clustering of SELECTs Δt t SELECT (user, mailbox) SELECT (user, mailbox)

  25. Clustering of SELECTs Δt . . . 29s 30s 31s . . .

  26. Clustering of SELECTS

  27. Clustering of SELECTs

  28. Clustering of SELECTS

  29. Conclusions • 60-second polling is a problem • The webmail upgrade put us over the edge

  30. Solutions • Checking in on the heavy users • (9-days of data, 55-s to 75-s) • Analyze the Webmail code • Architecture changes • More hardware

  31. The UNIX Group • Chris Alexander • Bruce Anderson • Karla Fields • Amanda Gagnon • Ken Guyton • Curt Tucker • Eric Van Wieren

  32. NetCom Q&A

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