3 The SRU to Z39.50 filter does repeated Z39.50 present requests
4 to fetch all records. Needed when a Z39.50 server returns partial
5 results (due to message size limits).
9 Metaproxy now kills all child processes that are spawned by
10 modules (in case of fork, exec).
14 Debian package now installs /etc/metaproxy/metaproxy.xml which
15 includes all XML files /etc/metaproxy/filters-enabled .
16 The include facility uses YAZ' yaz_xml_include_simple (YAZ 4.0.1).
20 Package based on YAZ version 4 and YAZ++ 1.2.0. It now includes a
21 development package to facilitate 3rd party Metaproxy modules.
25 Filter virt_db: Close backend filter session when Init rejected is received
26 from it (in which case it's not really closed yet). This will ensure we don't
27 run out of resources such as FDs in this case.
29 sru_z3950 filter: Accept any database (including those not listed).
33 Prepare for 64-bit YAZ. yazproxy will still work with YAZ++ 1.1.4 or
34 later which means YAZ 3.0.47 or later.
38 For filter virt_db, the database is a glob pattern and the virtual
39 database sections are consulted in the order given.
43 For filter multi, the target (for routing) may be given as a glob-pattern.
45 More documentation for filters virt_db and multi.
47 Update schema to allow for no database in sru_z3950 filter.
51 Added limit filter to put sleep (penalty) for heavy use.
53 Filter frontend_net may be configured to limit the number of new connections
54 from same IP to some value (connect-max).
56 Fixed the load_balance filter.
60 Fix path for metaproxy executable for Debian init.d script.
64 SRU to Z39.50 filter honors x-username and x-password. If only
65 x-username is given that translates to open authentication (Z39.50v2). If
66 both x-username and x-password is present that translates to idPass
67 authentication (Z39.50v3).
69 New facility to change current working directory (-w).
71 Update to upstream skeleton of init.d script. Should fix bug #2619.
73 Filter session_shared now caches records (used to only cache connections
76 Filter session_shared now invalidates a Z39.50 session if a server
77 returns -1 hits. This facility was also part of yazproxy and gets around
78 a bug in Voyager-based Z39.50 servers.
82 Fixed reference counting bug in Z39.50 client module (could cause SEGV).
86 Fixed the value of SRU record schema in searchRetrieve response. It was set
87 to a fixed value of "dc" before.
89 Serialize identical SRU requests. This is useful if HTTP client software
90 fires identical requests against metaproxy.
92 Allow Z39.50 target to be specified for SRU requests by using SRU extra
93 parameter x-target. Allows SRU to contact arbitrary Z39.50 targets and
94 avoid static configuration. This facility is handled by the sru_z3950 module
95 and the z3950_client module.
97 Allow maximum number of sockets to be used for a Z39.50 client by the
98 use of SRU extra parameter x-max-sockets. This facility is handled by the
99 sru_z3950 module and the z3950_client module.
101 --- 1.0.13.1 2008/02/29
103 Simplified check for Boost libraries.
105 --- 1.0.13 2008/02/29
107 First Debian package.
109 The sru_z9350 filter now recognizes SRU parameter z-target as being
110 a ZURL of the form host/database .
112 Mergetype may be specified for filter 'multi'.
114 --- 1.0.12 2007/09/19
116 Fixed problem in Makefile WRT library specifictions. This could produce
117 linker errors (when they should not happen).
119 Fixed bug #1341: MetaProxy returning different results. Problem was that
120 fix-up of record database did not normalize the database name.
122 Documentation updates for Windows compilation.
124 --- 1.0.11 2007/06/14
126 Fixed problem with logfile being truncated.
128 --- 1.0.10 2007/05/23
130 Fixed bug #1136: Access rights not enforced.
132 Extension for log module. The log category 'access' logs more details.
133 New category 'user-access' added which is simlar to 'access' but adds
134 the Z39.50 user as for all entries in a session.
138 Added support for configurable default/force target/vhost for module Z39.50
143 Implemented filter, session_shared, which optimizes usage of Z39.50
144 sessions and result sets.
146 New filter, record_transform, which converts MARC/XML records.
148 New filter, sru_z3950, which converts SRU to Z39.50 packages.
150 New filter, load_balance, in development.
152 New filter, zeerex_xplain.
154 XML framework for config files started.
156 Master RelaxNG Compact schema's are found in xml/schema/*.rnc,
157 RelaxNG XML schemas and XML Schema's are generated from RNC syntax.
158 XML config files are checked against RNG and XML Schema's.
160 XSLT transformation framework added in xml/xslt/*.xsl, consisting mainly of
161 LOC Marc21 stylesheets found at http://www.loc.gov/marcxml/xslt.
162 Added stylesheet explain2cqlpqftxt.xsl which transforms a standard SRU ZeeReX
163 explain record to YAZ CQL-to-PQF text config file.
167 Added 'timeout' setting for filter frontend_net which specifies the number
168 of seconds a session is idle before it is closed. Default timeout is
173 Database name in records returned set for virt_db/multi filters.
175 Filter session_shared now functional.
177 Log filter can be configured to write to a given file using 'filename'
178 element. Also information category can be specified with 'category'. If
179 filename is omitted, the log filter writes to stdout. See etc/config5.xml
184 Fixed compilation on Windows.
188 Added documentation for the hidenavailable option for the multi filter.
192 Fixed bug #573: Hide errors for individual servers. If the element
193 'hideunavailable' is given in the configuration, individual servers
194 being unavailable are hidden (unless all are unavailable).
196 Fixed bug #574: Database names are recognised case-sensitively.
198 Fixed bug #567: Fix up database name in Name-Plus-Record.
200 Fixed bug #568: Update win/makefile for VS 2005.
202 Fixed bug #569: Some options throws unknown exception.
206 More information about virtual hosts. The 'etc' directory is part of the
211 Build instructions for Windows. NMake makefile part of distribution tar.
217 Filters functional: auth_simple, backend_test, frontend_net, http_file,
218 log, multi, query_rewrite, template, virt_db, z3950_client.
220 Filters in development: session_shared.
222 Pseudo-filters: template, dl