Mercurial > dive4elements > gnv-client

annotate doc/admin-manual/operating-the-system.tex @ 1134:411b09d348ca

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Some refactoring of 'Adding new Languages' section. doc/trunk@1249 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 30 Jun 2010 08:52:49 +0000
parents ec28a68b5a87
children 17c3770e6c63
rev   line source
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1 \section{Management of operational processes}
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2
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3 For running the entire GNV-system the following components have to be
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4 available in the described sequence:
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5 \begin{enumerate}
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6 \item Database server
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7 \item Artifact-server
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8 \item Apache Tomcat running the WebClient
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9 \item Apache WebServer
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10 \end{enumerate}
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11
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12 During a server startup the installed components get started
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13 automatically.
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14
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15 \subsection{Managing the Artifact Server}
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16
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17 \subsubsection*{Starting and Stopping}
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18
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19 The artifact-server can be restarted without stopping the WebClient.
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20 During the restart-process client accessing the server get an approriate
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21 message. Their session data will not be lost if the artifact database
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22 will remain untouched.
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23
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24 Stopping artifact-server:
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25 \begin{lstlisting}
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26 /etc/init.d/artifact-server stop
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27 \end{lstlisting}
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28
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29 Starting artifact server
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30 \begin{lstlisting}
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31 /etc/init.d/artifact-server start
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32 \end{lstlisting}
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33
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34 Restarting artifact server
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35 \begin{lstlisting}
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36 /etc/init.d/artifact-server restart
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37 \end{lstlisting}
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38
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39 \subsubsection*{Troubleshooting}
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40
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41 \paragraph*{Database problems}
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42 For checking problems with the connection to the database server, check
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43 the logfile of the artifact-server (c.f.
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44 chapter~\chapter{ref:artifact-server-install},
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45 p.~pageref{ref:artifact-server-install}.
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46
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47 In most cases, a restart of the artifact-server will help to solve
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48 problems in the artifact-server. If you still encounter problems, check
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49 for the network connection to the database server and the maturity of
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50 the database server.
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51
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52 \paragraph*{Caching problems}
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53 Inconsistencies between original data and cached data:
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54 The artifact-server stores result sets of the database in a cache and
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55 provides maps via configuration files for MapServer based on shapefiles.
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56 In case of inconsistencies showing up for longer than twice the
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57 maximum of the update cycle of internal ETL processes, do the following
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58 as user \verb+root+:
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59
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60 \begin{lstlisting}
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61 cd /opt/artifact-server
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62 /etc/init.d/artifact-server stop
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63 rm -ri cache/*
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64 /etc/init.d/artifact-server start
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65 \end{lstlisting}
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66
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67 \subsection{Managing the GNV-Client}
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68 \subsubsection*{Start Stop Restart}
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69
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70 The GNV-WebClient can be managed by controlling Apache Tomcat instance:
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71
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72 Status GNV-WebClient
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73 \begin{lstlisting}
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74 /etc/init.d/tomcat5.5 status
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75 \end{lstlisting}
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76
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77 Stopping GNV-WebClient
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78 \begin{lstlisting}
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79 /etc/init.d/tomcat5.5 stop
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80 \end{lstlisting}
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81
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82 Starting GNV-WebClient
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83 \begin{lstlisting}
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84 /etc/init.d/tomcat5.5 start
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85 \end{lstlisting}
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86
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87 Restarting GNV-WebClient
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88 \begin{lstlisting}
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89 /etc/init.d/tomcat5.5 restart
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90 \end{lstlisting}
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91
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92 \subsubsection*{Troubleshooting}
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93
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94 If the GNV-WebClient can not be accessed through the Apache WebServer, do the
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95 following:
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96 \begin{lstlisting}
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97 1. /etc/init.d/apache2 restart
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98 2. Check in your browser at http://$SERVERNAME/gnv
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99 \end{lstlisting}
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100
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101 If you still encounter problems, follow the next these steps:
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102
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103 {\bf Caution: The entire application will be down until the WebServer is
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104 back up.}
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105 \begin{lstlisting}
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106 /etc/init.d/apache2 stop
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107 /etc/init.d/tomcat5.5 stop
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108 rm -r /usr/share/tomcat5.5/work/Catalina/localhost/gnv/*
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109 /etc/init.d/tomcat5.5 start # wait until tomcat is up
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110 /etc/init.d/apache2 start
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111 \end{lstlisting}
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112
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113 For further information, you look into the log information during the use of the
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114 GNV WebClient
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115 \begin{lstlisting}
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116 tail -f -n 50 /usr/share/tomcat5.5/logs/gnv.log
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117 \end{lstlisting}
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118
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119 To get even more logging, do the following:
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120
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121 {\bf Caution: The entire application will be down until the Apache Tomcat
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122 has been started properly; the higher log-level can affect the
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123 runtime-behaviour of the client. For further instructions, c.f.
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124 Chapter~\ref{ref:webclient-config}, p.~\pageref{ref:webclient-config}.}
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125
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126 \begin{lstlisting}
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127 /etc/init.d/tomcat5.5 stop
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128 Set logging to DEBUG
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129 vim /usr/share/tomcat5.5/webapps/gnv/WEB-INF/classes/log4j.properties
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130 /etc/init.d/tomcat5.5 start # wait until tomcat is up
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131 tail -f -n 50 /usr/share/tomcat5.5/logs/gnv.log
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132 \end{lstlisting}
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133
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134 It is recommended to undo the logging configuration, after the relevant
1ebde13e620f Moved all admin-manual specific files in new directory admin-manual
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135 part has been found.
http://dive4elements.wald.intevation.org