[[PageOutline]]
{{{
#!html
<h1 style="text-align: center; color: blue">Unattended Simulated Mode</h1>
}}}
----
= 【0.架構】 =
[[Image(mode_unattended_simulation.png,width=600px)]]
 * Haizea Configuration File - 一個文字檔包含一些選項
 * Request Tracefile - 一個文字檔包含了租約的需求
----
= 【1.配置】 =
== 【1.1 Haizea Configuration File】 ==
|| 從上圖架構知道，要使用 Haiea 的第一步便是要撰寫一篇好的 Haizea Configuration File，官方文件說可以參考範例檔 /usr/share/haizea/etc/sample_trace.conf 和 sample_trace_barebones (兩個文件內容一樣，只差再第2份沒註解)，文檔中要注意的地方是 option 的設定和配置 ||
 * 以下面範例來解說 option，便是'''『模擬』''' '''2006-11-25 下午1點'''開始執行任務在 '''4台有1顆CPU 和1G Ram 的機器'''上執行 ([simulation]->屬性名稱，startime、resources->屬性細部設定)
{{{
#!sh
[simulation]
starttime: 2006-11-25 13:00:00
resources: 4  CPU:100 Memory:1024
}}}
    * [[Image(quickstart_leasegraph2.png,width=300px)]]
  * [http://haizea.cs.uchicago.edu/manual/node63.html#app:conffile 參考的屬性值]

[[BR]]
== 【1.2 Tracefile File】 ==
|| 而 Tracefile 便是在 Haizea Configuration File 中的 [tracefile] 屬性指定||
{{{
#!sh
[tracefile]
tracefile: /usr/share/haizea/traces/sample.lwf
}}}
 * 此 Tracefile 範例檔的格式為 LWF/Lease Workload Format (類似 XML 的格式)
{{{
#!sh
<lease-workload name="sample">
	<description>
	A simple trace where an AR lease preempts a 
	best-effort lease that is already running. 
	</description>

	<lease-requests>
	
	<!-- The lease requests are initially commented out -->
	
	<!-- First lease request -->
	<!--
	...
	-->

	<!-- Second lease request -->
	<!--
	...
	-->
	
	</lease-requests>
</lease-workload>
}}}
 * [http://haizea.cs.uchicago.edu/manual/node71.html#app:lwf XML 格式參考]
----
= 【2.開始模擬】 =
||現在我們使用已寫好的範例 configuration(sample_trace.conf) 和 tracefile(sample.lwf)，便可透過haizea 指令開始執行模擬 (參數 -c 為指定設定檔)||
== 【2.1 範例一】 ==
{{{
# haizea -c /usr/share/haizea/etc/sample_trace.conf
[2006-11-25 13:00:00.00] RM      Starting resource manager
[2006-11-25 13:00:00.00] TFILE   Loading tracefile /usr/share/haizea/traces/sample.lwf
[2006-11-25 13:00:00.00] TFILE   Loaded workload with 0 requests ()
[2006-11-25 13:00:00.00] CLOCK   Starting simulated clock
[2006-11-25 13:00:00.00] CLOCK   Simulated clock has stopped
[2006-11-25 13:00:00.00] RM      Stopping resource manager gracefully...
[2006-11-25 13:00:00.00] RM      --- Haizea status summary ---
[2006-11-25 13:00:00.00] RM      Number of leases (not including completed): 0
[2006-11-25 13:00:00.00] RM      Completed leases: 0
[2006-11-25 13:00:00.00] RM      ---- End summary ----

}}}
 * 此結果輸出主要有三類：'''RM'''(Resource Manager)、'''TFILE'''(!TraceFile)、'''CLOCK'''
   * RM      Starting resource manager：啟動資源管理者
   * TFILE   Loading tracefile /usr/share/haizea/traces/sample.lwf：載入 tracefile
   * TFILE   Loaded workload with 0 requests ()：此範例檔並無租約要求
   * CLOCK   Starting simulated clock：開始模擬的 clock
   * CLOCK   Simulated clock has stopped：停止模擬的 clock

== 【2.2 範例一之版本1】 == 
 * 現在我們修改 !TraceFile (將註解的第18行和第34行打開)
{{{
#!sh
19         <lease-request arrival="00:00:00">
20         <lease preemptible="true">
21                 <nodes>
22                         <node-set numnodes="1">
23                                 <res type="CPU" amount="100"/>
24                                 <res type="Memory" amount="1024"/>
25                         </node-set>
26                 </nodes>        
27                 <start></start>
28                 <duration time="01:00:00"/>
29         <software>
30           <disk-image id="foobar.img" size="1024"/>
31         </software>
32         </lease>
33         </lease-request>
}}}
 * 再執行它
{{{
# haizea -c /usr/share/haizea/etc/sample_trace.conf
[2006-11-25 13:00:00.00] RM      Starting resource manager
[2006-11-25 13:00:00.00] TFILE   Loading tracefile /usr/share/haizea/traces/sample.lwf
[2006-11-25 13:00:00.00] TFILE   Loaded workload with 1 requests (1 Best-effort)
[2006-11-25 13:00:00.00] CLOCK   Starting simulated clock
[2006-11-25 13:00:00.00] LSCHED  Lease #1 has been requested.
[2006-11-25 13:00:00.00] LSCHED  Lease #1 has been marked as pending.
[2006-11-25 13:00:00.00] LSCHED  Queued best-effort lease request #1, 1 nodes for 01:00:00.00.
[2006-11-25 13:00:00.00] LSCHED  Next request in the queue is lease 1. Attempting to schedule...
[2006-11-25 13:00:00.00] VMSCHED Lease #1 has been scheduled on nodes [1] from 2006-11-25 13:00:00.00 to 2006-11-25 14:00:00.00
[2006-11-25 13:00:00.00] VMSCHED Started VMs for lease 1 on nodes [1]
[2006-11-25 14:00:00.00] VMSCHED Stopped VMs for lease 1 on nodes [1]
[2006-11-25 14:00:00.00] VMSCHED Lease 1's VMs have shutdown.
[2006-11-25 14:00:00.00] CLOCK   Simulated clock has stopped
[2006-11-25 14:00:00.00] RM      Stopping resource manager gracefully...
[2006-11-25 14:00:00.00] RM      --- Haizea status summary ---
[2006-11-25 14:00:00.00] RM      Number of leases (not including completed): 0
[2006-11-25 14:00:00.00] RM      Completed leases: 1
[2006-11-25 14:00:00.00] RM      ---- End summary ----
}}}
 * 兩個 CLOCK 之間多了LSCHED(租約排程) 和 VMSCHED(VM排程)
    * LSCHED  Lease !#1 has been requested.
    * LSCHED  Lease !#1 has been marked as pending.
    * LSCHED  Queued best-effort lease request !#1, 1 nodes for 01:00:00.00.
    * LSCHED  Next request in the queue is lease 1. Attempting to schedule...
    * VMSCHED Lease !#1 has been scheduled on nodes ![1] from 2006-11-25 13:00:00.00 to 2006-11-25 14:00:00.00
    * VMSCHED Started VMs for lease 1 on nodes ![1]
    * VMSCHED Stopped VMs for lease 1 on nodes ![1]
    * VMSCHED Lease 1's VMs have shutdown.
 * [[Image(http://haizea.cs.uchicago.edu/manual/quickstart_leasegraph2.png,width=350px)]]<- 流程圖解：此 Best-effort 租約要求一台 node 在 13:00時，並持續擁有資源此 1小時
== 【2.2 範例一之版本2】 == 
 * 繼續修改 !TraceFile (再把註解的第37行和第55行打開)
{{{
#!sh
38         <lease-request arrival="00:15:00">
39         <lease preemptible="false">
40                 <nodes>
41                         <node-set numnodes="4">
42                                 <res type="CPU" amount="100"/>
43                                 <res type="Memory" amount="1024"/>
44                         </node-set>
45                 </nodes>        
46                 <start>
47                         <exact time="00:30:00"/>
48                 </start>
49                 <duration time="00:30:00"/>
50         <software>
51           <disk-image id="foobar.img" size="1024"/>
52         </software>
53         </lease>
54         </lease-request>
}}}
 * 執行它
{{{
# haizea -c /usr/share/haizea/etc/sample_trace.conf
[2006-11-25 13:00:00.00] RM      Starting resource manager
[2006-11-25 13:00:00.00] TFILE   Loading tracefile /usr/share/haizea/traces/sample.lwf
[2006-11-25 13:00:00.00] TFILE   Loaded workload with 2 requests (1 Best-effort + 1 AR)
[2006-11-25 13:00:00.00] CLOCK   Starting simulated clock
[2006-11-25 13:00:00.00] LSCHED  Lease #1 has been requested.
[2006-11-25 13:00:00.00] LSCHED  Lease #1 has been marked as pending.
[2006-11-25 13:00:00.00] LSCHED  Queued best-effort lease request #1, 1 nodes for 01:00:00.00.
[2006-11-25 13:00:00.00] LSCHED  Next request in the queue is lease 1. Attempting to schedule...
[2006-11-25 13:00:00.00] VMSCHED Lease #1 has been scheduled on nodes [1] from 2006-11-25 13:00:00.00 to 2006-11-25 14:00:00.00
[2006-11-25 13:00:00.00] VMSCHED Started VMs for lease 1 on nodes [1]
[2006-11-25 13:15:00.00] LSCHED  Lease #2 has been requested.
[2006-11-25 13:15:00.00] LSCHED  Lease #2 has been marked as pending.
[2006-11-25 13:15:00.00] LSCHED  Scheduling AR lease #2, 4 nodes from 2006-11-25 13:30:00.00 to 2006-11-25 14:00:00.00.
[2006-11-25 13:15:00.00] LSCHED  Must preempt leases [1] to make room for lease #2
[2006-11-25 13:15:00.00] LSCHED  Preempting lease #1...
[2006-11-25 13:15:00.00] LSCHED  ... lease #1 will be suspended at 2006-11-25 13:30:00.00.
[2006-11-25 13:15:00.00] LSCHED  AR lease #2 has been scheduled.
[2006-11-25 13:29:28.00] VMSCHED Stopped VMs for lease 1 on nodes [1]
[2006-11-25 13:29:28.00] VMSCHED Suspending lease 1...
[2006-11-25 13:30:00.00] VMSCHED Lease 1 suspended.
[2006-11-25 13:30:00.00] VMSCHED Started VMs for lease 2 on nodes [2, 3, 4, 1]
[2006-11-25 13:30:00.00] LSCHED  Next request in the queue is lease 1. Attempting to schedule...
[2006-11-25 13:30:00.00] VMSCHED Lease #1 has been scheduled on nodes [1] from 2006-11-25 14:00:00.00 (resuming) to 2006-11-25 14:31:04.00
[2006-11-25 14:00:00.00] VMSCHED Stopped VMs for lease 2 on nodes [2, 3, 4, 1]
[2006-11-25 14:00:00.00] VMSCHED Resuming lease 1...
[2006-11-25 14:00:00.00] VMSCHED Lease 2's VMs have shutdown.
[2006-11-25 14:00:32.00] VMSCHED Resumed lease 1
[2006-11-25 14:00:32.00] VMSCHED Started VMs for lease 1 on nodes [1]
[2006-11-25 14:31:04.00] VMSCHED Stopped VMs for lease 1 on nodes [1]
[2006-11-25 14:31:04.00] VMSCHED Lease 1's VMs have shutdown.
[2006-11-25 14:31:04.00] CLOCK   Simulated clock has stopped
[2006-11-25 14:31:04.00] RM      Stopping resource manager gracefully...
[2006-11-25 14:31:04.00] RM      --- Haizea status summary ---
[2006-11-25 14:31:04.00] RM      Number of leases (not including completed): 0
[2006-11-25 14:31:04.00] RM      Completed leases: 2
[2006-11-25 14:31:04.00] RM      ---- End summary ----
}}}
 * [[Image(http://haizea.cs.uchicago.edu/manual/quickstart_leasegraph3.png,width=350px)]]
<- 流程圖解：第1個租約(Best-effort lease)要求一台 node 在 13:00時，並持續擁有資源此 1 小時，到了13:15分時，第2個租約(AR lease)要求出現，他需要 4 台 node 再 13:30開始執行，並持續擁有資源 30 分鐘 (因為AR lease 優先權高於 Best-effort lease，所以到了13:30時，將第1個租約先 suspend起來，等到13:30 第2個資約完成後，才resume回來繼續執行租約1)