[[PageOutline]] = 【ONE Schedule 測試】 = == 1.機器資訊 == * '''''__硬體'''''__ * one -> Ram 4G，sda6(mdt)，sda7(ost1) * one01 -> Ram 2G，sdb1(ost2)，sdb2(ost3) * '''''__軟體'''''__ -> Lenny(5.0)，Xen(3.3.1)，Lustre(1.6.6)，OpenNEbula(1.2) ---- == 2.正常 Case == * '''''__2.1 CPU Case:'''''__ 1. VM 需要 Free CPU，讓 one01 跑 make kernel (one 則不執行動作)，測試是否會 deploy 在 one 上 {{{ #!sh ### 再 one01上執行 ### $ wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.29.tar.bz2 $ tar jxvf linux-2.6.29.tar.bz2 $ cd linux-2.6.29 || make ### 再 one (ONE Server) 上執行 ### $ vim vm01.one NAME = vm01 CPU = 1 MEMORY = 156 OS = [ kernel = /boot/vmlinuz-2.6.22.9, initrd = /boot/initrd.img-2.6.22.9, root = sda2, kernel_cmd = "ro xencons=tty console=tty1" ] DISK = [ source = /home/domains/vm01/disk.img, clone = no, target = sda2, readonly = no] DISK = [ type = swap, size = 512, target = "sda1", readonly = "no" ] NIC = [NETWORK="Public",IP="X.X.X.X",MAC="00:03:8c:6e:8a:a0"] REQUIREMENTS= "FREECPU > 200" RANK = FREECPU $ onevm -v create vm01.one ID: 25 $ watch onevm list ID NAME STAT CPU MEM HOSTNAME TIME 25 vm01 runn 0 159744 one 00 00:02:30 ### 前面 PIR 是優先權，HID 則是 Host 的 ID (這邊的 HID 0 是指 one) ### $ tail /home/one/var/sched.log Fri May 1 12:03:09 2009 [SCHED][I]: Dispatching virtual machine 24 to HID: 0 Fri May 1 12:03:39 2009 [HOST][D]: Discovered Hosts (enabled): 0 1 Fri May 1 12:03:39 2009 [VM][D]: Pending virtual machines : 25 Fri May 1 12:03:39 2009 [SCHED][I]: Select hosts PRI HID HSID ------------------- Virtual Machine: 25 1 0 }}} * '''''__2.2 Memory Case:'''''__ 1. VM 需要 1G Memory，讓 one 的記憶體只剩 512M (one01 則有2G)，測試是否 deploy one01 {{{ #!sh }}} 2. VM 需要 ''HOST Total Mem > 1G ， Free Mem 最多''的 Host 為優先 {{{ #!sh $ vim vm02.one 略 REQUIREMENTS= "TOTALMEMORY > 1000000" RANK = FREEMEMORY $ onehost list HID NAME RVM TCPU FCPU ACPU TMEM FMEM STAT 0 one 0 400 384 400 6216704 263168 on 1 one01 1 400 399 300 2071552 320512 on $ onevm create -v vm02.one ID: 27 $ onehost list HID NAME RVM TCPU FCPU ACPU TMEM FMEM STAT 0 one 0 400 384 400 6216704 263168 on 1 one01 1 400 398 300 2071552 160768 on $ onevm list ID NAME STAT CPU MEM HOSTNAME TIME 31 vm02 runn 0 159744 one01 00 00:03:39 $ tail /home/one/var/sched.log 14140 Fri May 1 13:15:09 2009 [HOST][D]: Discovered Hosts (enabled): 0 1 14141 Fri May 1 13:15:09 2009 [VM][D]: Pending virtual machines : 31 14142 Fri May 1 13:15:09 2009 [SCHED][I]: Select hosts 14143 PRI HID HSID 14144 ------------------- 14145 Virtual Machine: 31 14146 1 1 14147 0.821086 0 }}} * '''''__2.3 CPU 和 Memory Case:'''''__ 1. VM 需要 ''CPU 使用率 < 200 和 記憶體需大於 512MB'' 的 Host {{{ #!sh $ vim vm03.one 略 REQUIREMENTS= "USEDCPU < 200 & FREEMEMORY > 512000" RANK= FREECPU $ onevm create -v vm03.one ID: 20 $ watch onevm list ID NAME STAT CPU MEM HOSTNAME TIME 20 vm03 runn 0 159744 one01 00 00:05:10 ### HID 1 的分數為 1 而 HID 0 分數為 0.982456，所以 deploy vm03 到 HID 1 (one01) ### $ tail /home/one/vat/sched.log Fri May 1 11:37:09 2009 [HOST][D]: Discovered Hosts (enabled): 0 1 Fri May 1 11:37:09 2009 [VM][D]: Pending virtual machines : 20 Fri May 1 11:37:09 2009 [SCHED][I]: Select hosts PRI HID HSID ------------------- Virtual Machine: 20 1 1 0.982456 0 }}} ---- == 3.錯誤 Case == * '''''__Case 1'''''__ -> 測試 Xen 本身對於超過需求的 VM (Xen 本身的錯誤檢查機制)，會如何顯示 Create VM 的錯誤訊息 * VM 要 8G 的 ram (one 只有4G) {{{ ### 若有設定 dom0_min_mem ，當 VM 要求超過 dom0 的記憶體最小值時會出現以下提示訊息，無法開啟 VM ### $ sudo xm create -c vm02.cfg Using config file "./vm02.cfg". Error: I need 8487936 KiB, but dom0_min_mem is 524288 and shrinking to 524288 KiB would leave only 5586844 KiB free. }}} * VM 要 6 CPU (one01 只有4 CPU) * '''''__Case 2'''''__ -> VM 需要 Free CPU，但 one 和 one01 都執行 makec kernel，會如何 deploy * '''''__Case 3'''''__ -> VM 需要 1G Memory， 但 one 和 one01 都只剩 512M，會如何 deploy ---- == 4.紀錄 == * 若 Requirement 都不符合時，或一直處於 pend 狀態，直到符合的 Host 出現才 deploy * Schedule 判斷的資訊是取自於 ? * FMEM 的資訊