</para>
<para>
The following sets maximum number of bytes transferred per minute to
- 500Kbytes and maximum number of requests to 40.
+ 500Kbytes, maximum number of records retrievals to 40
+ and maximum number of searches to 20.
<screen>
<limit>
<bandwidth>524288</bandwidth>
<retrieve>40</retrieve>
+ <search>20</search>
</limit>
</screen>
</para>
<note>
<para>
- Typically the limits for keepalive are much higher than
- those for session minute average.
+ Typically the values in the keepalive section are mugh higher
+ than their equivalent limit counterparts (bandwidth, pdu).
</para>
</note>
</section>
<literal>type</literal> should be XML. The proxy will use
preferred record syntax USMARC/MARC21 or <literal>backendtype</literal>
(if given) against the backend target.
+ For the special case where <literal>backendtype</literal> is
+ <literal>opac</literal> the proxy will convert the OPAC
+ record to OPACXML.
</para>
<para>
If attribute <literal>backendtype</literal> is given, that holds the
If attribute <literal>stylesheet</literal> is given, the proxy
will convert XML record from server via XSLT. It is important
that the content from server is XML. If used in conjunction with
- attribute <literal>marcxml</literal> the MARC to MARCXML conversion
- takes place before the XSLT conversion takes place.
+ attribute <literal>marcxml</literal>, the MARC to MARCXML/OPACXML
+ conversion takes place before the XSLT conversion takes place.
</para>
<para>
If attribute <literal>identifier</literal> is given that is the
</para>
</section>
- <section id="proxy-config-max-clients">
- <title>max-clients</title>
- <para>
- The element <literal>max-clients</literal> is the child of element
- <literal>proxy</literal> and specifies the total number of
- allowed connections to targets (all targets). If this limit
- is reached the proxy will close the least recently used connection.
- </para>
- <para>
- Note, that many Unix systems impose a system on the number of
- open files allowed in a single process, typically in the
- range 256 (Solaris) to 1024 (Linux).
- The proxy uses 2 sockets per session + a few files
- for logging. As a rule of thumb, ensure that 2*max-clients + 5
- can be opened by the proxy process.
- </para>
- <tip>
- <para>
- Using the <ulink url="http://www.gnu.org/software/bash/bash.html">
- bash</ulink> shell, you can set the limit with
- <literal>ulimit -n</literal><replaceable>no</replaceable>.
- Use <literal>ulimit -a</literal> to display limits.
- </para>
- </tip>
- </section>
-
<section id="proxy-config-target-authentication">
<title>target-authentication</title>
<para>
</variablelist>
</section>
+ <section id="proxy-config-target-charset">
+ <title>target-charset</title>
+ <para>
+ The element <literal>target-charset</literal> specifies the
+ native character set that the target uses for queries.
+ </para>
+ <para>
+ If this is specified the proxy will act as a Z39.50 server
+ supporting character set negotiation. And in SRW/SRU mode
+ it will convert from UTF-8 (UNICODE) to this native character
+ set (if possible).
+ </para>
+ </section>
+
+ <section id="proxy-config-max-clients">
+ <title>max-clients</title>
+ <para>
+ The element <literal>max-clients</literal> is the child of element
+ <literal>proxy</literal> and specifies the total number of
+ allowed connections to targets (all targets). If this limit
+ is reached the proxy will close the least recently used connection.
+ </para>
+ <para>
+ Note, that many Unix systems impose a system on the number of
+ open files allowed in a single process, typically in the
+ range 256 (Solaris) to 1024 (Linux).
+ The proxy uses 2 sockets per session + a few files
+ for logging. As a rule of thumb, ensure that 2*max-clients + 5
+ can be opened by the proxy process.
+ </para>
+ <tip>
+ <para>
+ Using the <ulink url="http://www.gnu.org/software/bash/bash.html">
+ bash</ulink> shell, you can set the limit with
+ <literal>ulimit -n</literal><replaceable>no</replaceable>.
+ Use <literal>ulimit -a</literal> to display limits.
+ </para>
+ </tip>
+ </section>
+
<section id="proxy-config-log">
<title>log</title>
<para>
and the size of the APDU is logged.
</entry>
</row>
+ <row>
+ <entry><literal>client-ip</literal></entry>
+ <entry>
+ Log the client IP for each log entry. By default, the client IP
+ is only logged when a new session starts.
+ </entry>
+ </row>
</tbody>
</tgroup>
</table>
<para>
The element <literal>max-connect</literal> is a child of element
<literal>proxy</literal> and specifies the maximum number
- of connections to be initiated within the last minute.
+ of connections to be initiated within the last minute (or
+ value of <link linkend="proxy-period-connect">period-connect</link>.
</para>
<para>
If the maximum number is reached the proxy will terminate the
<para>
The element <literal>max-connect</literal> is a child of element
<literal>proxy</literal> and specifies the limit of number
- of connections to be initiated within the last minute.
+ of connections to be initiated within the last minute (or
+ value of <link linkend="proxy-period-connect">period-connect</link>.
+ </para>
+ <para>
+ If the maximum number is reached the proxy delays the first operation
+ in the session by one second.
+ </para>
+ </section>
+
+ <section id="proxy-period-connect">
+ <title>period-connect</title>
+ <para>
+ The element <literal>period-connect</literal> is a child of element
+ <literal>proxy</literal> and specifies period - in the number of seconds
+ that <link linkend="proxy-limit-connect">limit-connect</link> and
+ <link linkend="proxy-max-connect">max-connect</link>
+ should measure connections.
</para>
<para>
- If the maximum number is reached the proxy delay the first operatation
- in the session (Thus delaying the connection).
+ If <literal>period-connect</literal> is omitted, 60 seconds is used.
</para>
</section>
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projects / yazproxy-moved-to-github.git / blobdiff