MACROMEDIA COLDFUSION MX-CLUSTERCATS Instrukcja Użytkownika Strona 16
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6 Chapter 1 Before You Begin
ClusterCATS components
ClusterCATS consists of these primary components:
• Server Resides on each computer in a cluster. It communicates with the web server
and other ClusterCATS Servers. For more information, see “ClusterCATS Server” on
page 48.
• Server Administrator (Windows only) or btadmin Lets you perform server-specific
administration tasks through a graphical interface. For UNIX-based administration,
use the scriptable btadmin utility, which is also available for Windows users. For more
information, see “ClusterCATS Server Administrator” on page 52 and “Using
btadmin” on page 122.
• ClusterCATS Explorer and Web Explorer Graphical utilities for creating and
managing clusters in Windows and UNIX environments, respectively. For more
information, see “ClusterCATS Explorer (Windows only)” on page 48 and
“ClusterCATS Web Explorer (UNIX only)” on page 49.
The following table shows which components ClusterCATS installs on each platform:
You must run the installation program on each server that will be part of your cluster and
on the Windows computer (NT, 2000, .NET Server, 98, or 95) from which you will use
ClusterCATS Explorer to administer the cluster. Even if your clusters run on Solaris or
Linux platforms, obtain a Windows computer for running ClusterCATS Explorer. If you
cannot, use the ClusterCATS Web Explorer in conjunction with the included server
utilities to administer your clusters.
Windows Installation UNIX Installation
ClusterCATS Server ClusterCATS Server
btadmin and ClusterCATS Server
Administrator
btadmin (Note: You can administer a UNIX cluster
with the ClusterCATS Server Administrator from a
Windows computer outside the cluster.)
ClusterCATS Explorer ClusterCATS Web Explorer (Note: You can access
this from a Windows or UNIX computer.)
- Using ClusterCATS 1
- CONTENTS 3
- C o n t e n t s v 5
- ABOUT THIS BOOK 7
- Developer resources 8
- Viewing online documentation 9
- Contacting Macromedia 10
- CHAPTER 1 11
- Before You Begin 11
- ClusterCATS overview 12
- Detailed overview 13
- • A user enters a new URL 14
- • A user employs a bookmark 14
- ClusterCATS overview 5 15
- ClusterCATS components 16
- System requirements 17
- CHAPTER 2 19
- What is scalability? 20
- What is scalability? 11 21
- Load management 22
- Avoiding common bottlenecks 26
- • “What is DNS?” on page 17 27
- Zones and domains 28
- What is website availability? 33
- Common failures 34
- Website availability scenario 35
- Failover considerations 35
- What is clustering? 38
- • It uses proven technology 39
- CHAPTER 3 43
- Installing ClusterCATS 43
- Before you install 44
- Configuring server failover 48
- Configuring firewalls 48
- Analyzing web server content 49
- After you install 55
- CHAPTER 4 57
- Configuring Clusters 57
- ClusterCATS Server 58
- Creating clusters 64
- Creating clusters 55 65
- Creating clusters 57 67
- Creating clusters in UNIX 70
- 3 Click OK 71
- Removing clusters 72
- Adding cluster members 73
- Removing cluster members 75
- Server load thresholds 76
- Server load thresholds 67 77
- Server load thresholds 69 79
- Server load thresholds 71 81
- Session-aware load balancing 82
- Session swapping overview 84
- Using ColdFusion probes 87
- Using ColdFusion probes 81 91
- To remove a ColdFusion probe: 91
- Using ColdFusion probes 83 93
- Using JRun probes 94
- Using JRun probes 85 95
- To remove a JRun probe: 98
- Using JRun probes 89 99
- To add a new JRun probe: 99
- Load-balancing devices 102
- • dynamic-feedback -retry 103
- Product drop-down list 104
- Load-balancing devices 97 107
- Administrator e-mail options 110
- Administering security 113
- Administering security 105 115
- Administering security 107 117
- CHAPTER 5 119
- Maintaining Cluster Members 119
- Resetting cluster members 130
- CHAPTER 6 131
- ClusterCATS Utilities 131
- Using btadmin 132
- Using btcfgchk 136
- Using hostinfo 139
- Using sniff 140
- CHAPTER 7 141
- Optimizing ClusterCATS 141
- Using server failover 147
- Overview of metrics 148
- Load types 149
- Output variables 149
- 142 Index 152
- 146 Index 156
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