2016/11/09: DevOps Enterprise Summit Day 3b

by Gene Kim on

#does16

  • Up: Dominica DeGrandis: @dominicad!
  • RT @EverydayKanban: we don't let our servers get to 100% capacity util. why do we let our people? @dominicad #does16
  • RT @v_rcb: RT @DOESsummit: "Nothing is static in technology for long, including leadership" @paulycomtois #DOES16
  • @dominicad: "We get endorphins from saying yes; even grouchy people like to say yes" (leads to WIP)
  • @dominicad: interesting use of terms: "revenue projection (security, tech debt)" vs "revenue generation"
  • @dominicad: "dependencies have assymetrical impact: every dependency incr pobability of lateness by 50%"
  • @dominicad: "when you have many small 2 pizza teams who have to meet, it means coordiantion cost is too high" (surprising countermeasure: combine the teams!)
  • @dominicad: "Goal of many small teams trying to move fast: high coordination cost"
  • Another way to state: high performers spend nearly 30% more time on planned work. (different way of calcuation, still accurate, tho)

    • Jackson: "Some devs reqd 5 days to get IDs; now we made it self service, it takes 5 seconds
  • Jackson: "we are releasing code for what we wrote, and open sourcing it. On github."

  • RT @DOESsummit: I got approval last week to share our services, we are releasing the code for this caching service! @WalmartLabs wo… https://t.co/XDSRYQIid3

  • @rosalind: "working with rocket software to put git on mainframe" (wow)

  • I mean seriously. A caching service like redis/memcache running on mainframe, soon on github. The rift in the universe continues.

  • What I learned: redis performances goes down when key/value over 1.5K. Typical Walmart key/value size is over 30K, some much larger.

  • @paulycomtois: "why is the middle so averse to change?"

  • RT @CharlesTBetz: EBCDIC support in git. "There's no reason zOS development needs to be different from anything else." Rock on Walmart! #DOES16

    • Jackson: "in 3 weeks, on our own time, nights/weekends, we were comfortable approaching that dev team who needed help
  • Jackson: "devs said, 'you're the mainframe people, right? Uhh, not intersted.' We were diappointed, we built a drop-in replacement for them!"

  • RT @CharlesTBetz: Did not expect to hear an account of a Web caching service written in zOS, VSAM, assembler & COBOL from Walmart team at #DOES16. Way cool.

  • Jackson: "Managers said, look we need to solve this problem; you have to at least try it. if you can break it, don't use it"

  • Jackson: "Devs threw more and more load on it. Up to 4K TPS. They were happy. Well, maybe not happy, but they were satisfied."

  • Jackson: "It was great for us, too. Because we could contribute to solving such an important business problem

  • RT @vijaysanthi: RT @IBMDevOps: This is a story about attitudes and interactions. Rich Jackson, #Walmart #DOES16 https://t.co/OEgK3oA8Zc

- RT @vijaysanthi: RT @IBMDevOps: This is a story about attitudes and interactions. Rich Jackson, #Walmart #DOES16 https://t.co/OEgK3oA8Zc

  • RT @dfrizzo1: #does16 'can CICS handle 100 TPS?' (Trans per second.) #mainframe humor. Like asking if a Corvette can go 0 to 60 in 5 minutes. @compuware
  • Jackson: "Some devs reqd 5 days to get IDs; now we made it self service, it takes 5 seconds

-

  • - Jackson: "Some devs reqd 5 days to get IDs; now we made it self service, it takes 5 seconds
  • Jackson: "we are releasing code for what we wrote, and open sourcing it. On github."
  • RT @DOESsummit: I got approval last week to share our services, we are releasing the code for this caching service! @WalmartLabs wo… https://t.co/XDSRYQIid3
  • @rosalind: "working with rocket software to put git on mainframe" (wow)
  • I mean seriously. A caching service like redis/memcache running on mainframe, soon on github. The rift in the universe continues.
  • What I learned: redis performances goes down when key/value over 1.5K. Typical Walmart key/value size is over 30K, some much larger.

  • @paulycomtois: "why is the middle so averse to change?"

  • RT @CharlesTBetz: EBCDIC support in git. "There's no reason zOS development needs to be different from anything else." Rock on Walmart! #DOES16

    • Jackson: "in 3 weeks, on our own time, nights/weekends, we were comfortable approaching that dev team who needed help
  • Jackson: "devs said, 'you're the mainframe people, right? Uhh, not intersted.' We were diappointed, we built a drop-in replacement for them!"

  • RT @CharlesTBetz: Did not expect to hear an account of a Web caching service written in zOS, VSAM, assembler & COBOL from Walmart team at #DOES16. Way cool.

  • Jackson: "Managers said, look we need to solve this problem; you have to at least try it. if you can break it, don't use it"

  • Jackson: "Devs threw more and more load on it. Up to 4K TPS. They were happy. Well, maybe not happy, but they were satisfied."

  • Jackson: "It was great for us, too. Because we could contribute to solving such an important business problem

  • RT @vijaysanthi: RT @IBMDevOps: This is a story about attitudes and interactions. Rich Jackson, #Walmart #DOES16 https://t.co/OEgK3oA8Zc

- RT @vijaysanthi: RT @IBMDevOps: This is a story about attitudes and interactions. Rich Jackson, #Walmart #DOES16 https://t.co/OEgK3oA8Zc

  • RT @dfrizzo1: #does16 'can CICS handle 100 TPS?' (Trans per second.) #mainframe humor. Like asking if a Corvette can go 0 to 60 in 5 minutes. @compuware
  • Jackson: "Some devs reqd 5 days to get IDs; now we made it self service, it takes 5 seconds