Author: rjung
Date: Thu Sep 22 18:01:31 2011
New Revision: 1174289
URL: http://svn.apache.org/viewvc?rev=1174289&view=rev
Log:
- URI Map: Add "sticky_ignore" extension attributes to uri worker map.
It allows to disable stickyness for individual mounts.
- HTTPD: Allow dynamic disabling of stickyness using the environment
variable JK_STICKY_IGNORE. This can be useful to break cookie stickyness
for non-sticky requests like login forms.
Modified:
tomcat/jk/trunk/native/apache-1.3/mod_jk.c
tomcat/jk/trunk/native/apache-2.0/mod_jk.c
tomcat/jk/trunk/native/common/jk_lb_worker.c
tomcat/jk/trunk/native/common/jk_service.h
tomcat/jk/trunk/native/common/jk_status.c
tomcat/jk/trunk/native/common/jk_uri_worker_map.c
tomcat/jk/trunk/native/common/jk_uri_worker_map.h
tomcat/jk/trunk/native/common/jk_util.c
tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
tomcat/jk/trunk/xdocs/miscellaneous/changelog.xml
tomcat/jk/trunk/xdocs/reference/apache.xml
tomcat/jk/trunk/xdocs/reference/uriworkermap.xml
tomcat/jk/trunk/xdocs/reference/workers.xml
Modified: tomcat/jk/trunk/native/apache-1.3/mod_jk.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/apache-1.3/mod_jk.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/apache-1.3/mod_jk.c (original)
+++ tomcat/jk/trunk/native/apache-1.3/mod_jk.c Thu Sep 22 18:01:31 2011
@@ -79,6 +79,7 @@
#define JK_ENV_KEY_SIZE ("SSL_CIPHER_USEKEYSIZE")
#define JK_ENV_CERTCHAIN_PREFIX ("SSL_CLIENT_CERT_CHAIN_")
#define JK_ENV_REPLY_TIMEOUT ("JK_REPLY_TIMEOUT")
+#define JK_ENV_STICKY_IGNORE ("JK_STICKY_IGNORE")
#define JK_ENV_WORKER_NAME ("JK_WORKER_NAME")
#define JK_NOTE_WORKER_NAME ("JK_WORKER_NAME")
#define JK_NOTE_WORKER_TYPE ("JK_WORKER_TYPE")
@@ -679,6 +680,7 @@ static int init_ws_service(apache_privat
request_rec *r = private_data->r;
char *ssl_temp = NULL;
const char *reply_timeout = NULL;
+ const char *sticky_ignore = NULL;
rule_extension_t *e;
/* Copy in function pointers (which are really methods) */
@@ -726,6 +728,7 @@ static int init_ws_service(apache_privat
e = (rule_extension_t *)ap_get_module_config(r->request_config,
&jk_module);
if (e) {
s->extension.reply_timeout = e->reply_timeout;
+ s->extension.sticky_ignore = e->sticky_ignore;
s->extension.use_server_error_pages = e->use_server_error_pages;
if (e->activation) {
s->extension.activation = ap_palloc(r->pool, e->activation_size *
sizeof(int));
@@ -744,6 +747,22 @@ static int init_ws_service(apache_privat
s->extension.reply_timeout = r;
}
+ sticky_ignore = ap_table_get(r->subprocess_env, JK_ENV_STICKY_IGNORE);
+ if (sticky_ignore) {
+ if (*sticky_ignore == '\0') {
+ s->extension.reply_timeout = JK_TRUE;
+ }
+ else {
+ int r = atoi(sticky_ignore);
+ if (r) {
+ s->extension.reply_timeout = JK_TRUE;
+ }
+ else {
+ s->extension.reply_timeout = JK_FALSE;
+ }
+ }
+ }
+
if (conf->options & JK_OPT_DISABLEREUSE)
s->disable_reuse = 1;
Modified: tomcat/jk/trunk/native/apache-2.0/mod_jk.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/apache-2.0/mod_jk.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/apache-2.0/mod_jk.c (original)
+++ tomcat/jk/trunk/native/apache-2.0/mod_jk.c Thu Sep 22 18:01:31 2011
@@ -114,6 +114,7 @@
#define JK_ENV_KEY_SIZE ("SSL_CIPHER_USEKEYSIZE")
#define JK_ENV_CERTCHAIN_PREFIX ("SSL_CLIENT_CERT_CHAIN_")
#define JK_ENV_REPLY_TIMEOUT ("JK_REPLY_TIMEOUT")
+#define JK_ENV_STICKY_IGNORE ("JK_STICKY_IGNORE")
#define JK_ENV_WORKER_NAME ("JK_WORKER_NAME")
#define JK_NOTE_WORKER_NAME ("JK_WORKER_NAME")
#define JK_NOTE_WORKER_TYPE ("JK_WORKER_TYPE")
@@ -734,6 +735,7 @@ static int init_ws_service(apache_privat
request_rec *r = private_data->r;
char *ssl_temp = NULL;
const char *reply_timeout = NULL;
+ const char *sticky_ignore = NULL;
rule_extension_t *e;
/* Copy in function pointers (which are really methods) */
@@ -780,6 +782,7 @@ static int init_ws_service(apache_privat
e = (rule_extension_t *)ap_get_module_config(r->request_config,
&jk_module);
if (e) {
s->extension.reply_timeout = e->reply_timeout;
+ s->extension.sticky_ignore = e->sticky_ignore;
s->extension.use_server_error_pages = e->use_server_error_pages;
if (e->activation) {
s->extension.activation = apr_palloc(r->pool, e->activation_size *
sizeof(int));
@@ -798,6 +801,22 @@ static int init_ws_service(apache_privat
s->extension.reply_timeout = r;
}
+ sticky_ignore = apr_table_get(r->subprocess_env, JK_ENV_STICKY_IGNORE);
+ if (sticky_ignore) {
+ if (*sticky_ignore == '\0') {
+ s->extension.reply_timeout = JK_TRUE;
+ }
+ else {
+ int r = atoi(sticky_ignore);
+ if (r) {
+ s->extension.reply_timeout = JK_TRUE;
+ }
+ else {
+ s->extension.reply_timeout = JK_FALSE;
+ }
+ }
+ }
+
if (conf->options & JK_OPT_DISABLEREUSE)
s->disable_reuse = 1;
Modified: tomcat/jk/trunk/native/common/jk_lb_worker.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_lb_worker.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_lb_worker.c (original)
+++ tomcat/jk/trunk/native/common/jk_lb_worker.c Thu Sep 22 18:01:31 2011
@@ -1118,9 +1118,9 @@ static int JK_METHOD service(jk_endpoint
jk_b_reset(s->reco_buf);
s->reco_status = RECO_INITED;
- if (p->worker->sticky_session) {
+ if (p->worker->sticky_session && s->extension.sticky_ignore != JK_TRUE) {
/* Use sessionid only if sticky_session is
- * defined for this load balancer
+ * defined and not overwritten for this load balancer
*/
sessionid = get_sessionid(s, p->worker, l);
}
Modified: tomcat/jk/trunk/native/common/jk_service.h
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_service.h?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_service.h (original)
+++ tomcat/jk/trunk/native/common/jk_service.h Thu Sep 22 18:01:31 2011
@@ -82,6 +82,8 @@ struct svc_extension
{
/* reply_timeout overwrite */
int reply_timeout;
+ /* Whether to ignore session routing info */
+ int sticky_ignore;
/* activation state overwrites for load balancers */
/* Dynamically allocated array with one entry per lb member. */
int *activation;
Modified: tomcat/jk/trunk/native/common/jk_status.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_status.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_status.c (original)
+++ tomcat/jk/trunk/native/common/jk_status.c Thu Sep 22 18:01:31 2011
@@ -231,10 +231,10 @@
#define JK_STATUS_FORM_START "<form method=\"%s\"
action=\"%s\">\n"
#define JK_STATUS_FORM_HIDDEN_INT "<input type=\"hidden\" name=\"%s\"
value=\"%d\"/>\n"
#define JK_STATUS_FORM_HIDDEN_STRING "<input type=\"hidden\" name=\"%s\"
value=\"%s\"/>\n"
-#define JK_STATUS_URI_MAP_TABLE_HEAD
"<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n"
-#define JK_STATUS_URI_MAP_TABLE_ROW
"<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td></tr>\n"
-#define JK_STATUS_URI_MAP_TABLE_HEAD2
"<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n"
-#define JK_STATUS_URI_MAP_TABLE_ROW2
"<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td></tr>\n"
+#define JK_STATUS_URI_MAP_TABLE_HEAD
"<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n"
+#define JK_STATUS_URI_MAP_TABLE_ROW
"<tr><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%d</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td></tr>\n"
+#define JK_STATUS_URI_MAP_TABLE_HEAD2
"<tr><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th><th>%s</th></tr>\n"
+#define JK_STATUS_URI_MAP_TABLE_ROW2
"<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td><td>%d</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%d</td></tr>\n"
#define JK_STATUS_SHOW_AJP_CONF_HEAD "<tr>" \
"<th>Type</th>" \
"<th>"
JK_STATUS_ARG_AJP_TEXT_HOST_STR "</th>" \
@@ -1549,6 +1549,7 @@ static void display_map(jk_ws_service_t
uri_worker_map_get_match(uwr, buf, l),
uri_worker_map_get_source(uwr, l),
uwr->extensions.reply_timeout,
+ uwr->extensions.sticky_ignore,
uwr->extensions.fail_on_status_str ?
uwr->extensions.fail_on_status_str : "-",
uwr->extensions.active ? uwr->extensions.active :
"-",
uwr->extensions.disabled ? uwr->extensions.disabled
: "-",
@@ -1560,6 +1561,7 @@ static void display_map(jk_ws_service_t
uri_worker_map_get_match(uwr, buf, l),
uri_worker_map_get_source(uwr, l),
uwr->extensions.reply_timeout,
+ uwr->extensions.sticky_ignore,
uwr->extensions.fail_on_status_str ?
uwr->extensions.fail_on_status_str : "-",
uwr->extensions.active ? uwr->extensions.active :
"-",
uwr->extensions.disabled ? uwr->extensions.disabled
: "-",
@@ -1575,6 +1577,7 @@ static void display_map(jk_ws_service_t
jk_print_xml_att_string(s, 8, "type",
uri_worker_map_get_match(uwr, buf, l));
jk_print_xml_att_string(s, 8, "source",
uri_worker_map_get_source(uwr, l));
jk_print_xml_att_int(s, 8, "reply_timeout",
uwr->extensions.reply_timeout);
+ jk_print_xml_att_int(s, 8, "sticky_ignore",
uwr->extensions.sticky_ignore);
jk_print_xml_att_string(s, 8, "fail_on_status",
uwr->extensions.fail_on_status_str);
jk_print_xml_att_string(s, 8, "active", uwr->extensions.active);
jk_print_xml_att_string(s, 8, "disabled",
uwr->extensions.disabled);
@@ -1591,6 +1594,7 @@ static void display_map(jk_ws_service_t
jk_printf(s, " type=\"%s\"", uri_worker_map_get_match(uwr, buf,
l));
jk_printf(s, " source=\"%s\"", uri_worker_map_get_source(uwr, l));
jk_printf(s, " reply_timeout=\"%d\"",
uwr->extensions.reply_timeout);
+ jk_printf(s, " sticky_ignore=\"%d\"",
uwr->extensions.sticky_ignore);
jk_printf(s, " fail_on_status=\"%s\"",
uwr->extensions.fail_on_status_str ? uwr->extensions.fail_on_status_str : "");
jk_printf(s, " active=\"%s\"", uwr->extensions.active ?
uwr->extensions.active : "");
jk_printf(s, " disabled=\"%s\"", uwr->extensions.disabled ?
uwr->extensions.disabled : "");
@@ -1605,6 +1609,7 @@ static void display_map(jk_ws_service_t
jk_print_prop_item_string(s, w, worker, "map", count, "type",
uri_worker_map_get_match(uwr, buf, l));
jk_print_prop_item_string(s, w, worker, "map", count, "source",
uri_worker_map_get_source(uwr, l));
jk_print_prop_item_int(s, w, worker, "map", count,
"reply_timeout", uwr->extensions.reply_timeout);
+ jk_print_prop_item_int(s, w, worker, "map", count,
"sticky_ignore", uwr->extensions.sticky_ignore);
jk_print_prop_item_string(s, w, worker, "map", count,
"fail_on_status", uwr->extensions.fail_on_status_str);
jk_print_prop_item_string(s, w, worker, "map", count, "active",
uwr->extensions.active);
jk_print_prop_item_string(s, w, worker, "map", count, "disabled",
uwr->extensions.disabled);
@@ -1659,10 +1664,10 @@ static void display_maps(jk_ws_service_t
jk_puts(s, "]</h3><table>\n");
if (has_server_iterator)
jk_printf(s, JK_STATUS_URI_MAP_TABLE_HEAD2,
- "Server", "URI", "Match Type", "Source", "Reply
Timeout", "Fail on Status", "Active", "Disabled", "Stopped", "Use Server
Errors");
+ "Server", "URI", "Match Type", "Source", "Reply
Timeout", "Sticky Ignore", "Fail on Status", "Active", "Disabled", "Stopped",
"Use Server Errors");
else
jk_printf(s, JK_STATUS_URI_MAP_TABLE_HEAD,
- "URI", "Match Type", "Source", "Reply Timeout",
"Fail on Status", "Active", "Disabled", "Stopped", "Use Server Errors");
+ "URI", "Match Type", "Source", "Reply Timeout",
"Sticky Ignore", "Fail on Status", "Active", "Disabled", "Stopped", "Use Server
Errors");
}
count = 0;
if (has_server_iterator) {
Modified: tomcat/jk/trunk/native/common/jk_uri_worker_map.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_uri_worker_map.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_uri_worker_map.c (original)
+++ tomcat/jk/trunk/native/common/jk_uri_worker_map.c Thu Sep 22 18:01:31 2011
@@ -40,6 +40,7 @@
#endif
#define JK_UWMAP_EXTENSION_REPLY_TIMEOUT "reply_timeout="
+#define JK_UWMAP_EXTENSION_STICKY_IGNORE "sticky_ignore="
#define JK_UWMAP_EXTENSION_ACTIVE "active="
#define JK_UWMAP_EXTENSION_DISABLED "disabled="
#define JK_UWMAP_EXTENSION_STOPPED "stopped="
@@ -637,6 +638,7 @@ int uri_worker_map_add(jk_uri_worker_map
w = jk_pool_strdup(p, worker);
uwr->extensions.reply_timeout = -1;
+ uwr->extensions.sticky_ignore = JK_FALSE;
uwr->extensions.active = NULL;
uwr->extensions.disabled = NULL;
uwr->extensions.stopped = NULL;
@@ -661,6 +663,15 @@ int uri_worker_map_add(jk_uri_worker_map
if (!strncmp(param, JK_UWMAP_EXTENSION_REPLY_TIMEOUT,
strlen(JK_UWMAP_EXTENSION_REPLY_TIMEOUT))) {
uwr->extensions.reply_timeout = atoi(param +
strlen(JK_UWMAP_EXTENSION_REPLY_TIMEOUT));
}
+ else if (!strncmp(param, JK_UWMAP_EXTENSION_STICKY_IGNORE,
strlen(JK_UWMAP_EXTENSION_STICKY_IGNORE))) {
+ int val = atoi(param +
strlen(JK_UWMAP_EXTENSION_STICKY_IGNORE));
+ if (val) {
+ uwr->extensions.sticky_ignore = JK_TRUE;
+ }
+ else {
+ uwr->extensions.sticky_ignore = JK_FALSE;
+ }
+ }
else if (!strncmp(param, JK_UWMAP_EXTENSION_USE_SRV_ERRORS,
strlen(JK_UWMAP_EXTENSION_USE_SRV_ERRORS))) {
uwr->extensions.use_server_error_pages = atoi(param +
strlen(JK_UWMAP_EXTENSION_USE_SRV_ERRORS));
}
Modified: tomcat/jk/trunk/native/common/jk_uri_worker_map.h
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_uri_worker_map.h?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_uri_worker_map.h (original)
+++ tomcat/jk/trunk/native/common/jk_uri_worker_map.h Thu Sep 22 18:01:31 2011
@@ -73,6 +73,8 @@ struct rule_extension
{
/* reply_timeout overwrite */
int reply_timeout;
+ /* Whether to ignore session routing info */
+ int sticky_ignore;
/* activation state overwrites for load balancers */
/* Number of elements in the array activations. */
int activation_size;
Modified: tomcat/jk/trunk/native/common/jk_util.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/common/jk_util.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/common/jk_util.c (original)
+++ tomcat/jk/trunk/native/common/jk_util.c Thu Sep 22 18:01:31 2011
@@ -2075,6 +2075,7 @@ void jk_init_ws_service(jk_ws_service_t
s->flush_packets = JK_FALSE;
s->flush_header = JK_FALSE;
s->extension.reply_timeout = -1;
+ s->extension.sticky_ignore = JK_FALSE;
s->extension.use_server_error_pages = 0;
s->extension.activation = NULL;
s->extension.fail_on_status_size = 0;
Modified: tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/iis/jk_isapi_plugin.c?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/native/iis/jk_isapi_plugin.c (original)
+++ tomcat/jk/trunk/native/iis/jk_isapi_plugin.c Thu Sep 22 18:01:31 2011
@@ -3084,6 +3084,7 @@ static int init_ws_service(isapi_private
if (JK_IS_DEBUG_LEVEL(logger))
jk_log(logger, JK_LOG_DEBUG, "Applying service extensions" );
s->extension.reply_timeout = e->reply_timeout;
+ s->extension.sticky_ignore = e->sticky_ignore;
s->extension.use_server_error_pages = e->use_server_error_pages;
if (e->activation) {
s->extension.activation = jk_pool_alloc(s->pool,
e->activation_size * sizeof(int));
Modified: tomcat/jk/trunk/xdocs/miscellaneous/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/xdocs/miscellaneous/changelog.xml?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/xdocs/miscellaneous/changelog.xml (original)
+++ tomcat/jk/trunk/xdocs/miscellaneous/changelog.xml Thu Sep 22 18:01:31 2011
@@ -40,6 +40,22 @@
new documentation project for JK was started.
</p>
</section>
+<section name="Changes between 1.2.32 and 1.2.33">
+ <br />
+ <subsection name="Native">
+ <changelog>
+ <add>
+ URI Map: Add "sticky_ignore" extension attributes to uri worker map.
+ It allows to disable stickyness for individual mounts. (rjung)
+ </add>
+ <add>
+ HTTPD: Allow dynamic disabling of stickyness using the environment
+ variable JK_STICKY_IGNORE. This can be useful to break cookie
stickyness
+ for non-sticky requests like login forms. (rjung)
+ </add>
+ </changelog>
+ </subsection>
+</section>
<section name="Changes between 1.2.31 and 1.2.32">
<br />
<subsection name="Native">
Modified: tomcat/jk/trunk/xdocs/reference/apache.xml
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/xdocs/reference/apache.xml?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/xdocs/reference/apache.xml (original)
+++ tomcat/jk/trunk/xdocs/reference/apache.xml Thu Sep 22 18:01:31 2011
@@ -1120,6 +1120,24 @@ for more complex rules to change the <b>
to request properties like e.g. the request URI.
This is available since version 1.2.27.
</p>
+<p>
+The environment variable
+<b>JK_IGNORE_STICKY</b> can be set to disable session stickyness
+for individual requests. If the variable is set to an empty string
+or a nonzero number, session stickyness will be disabled. Setting
+it to <b>0</b> will reset to the behaviour defined by the worker
+configuration.
+This is available since version 1.2.33.
+</p>
+<p>
+This feature can be useful to optimize load balancing when using
+cookie based session stickyness. In this case, as long as she keeps
+her browser open, any request by a user who started a session will
+be send to the same Tomcat instance, even if he left the part of
+the application which uses the session. You can for instance
+set this environment variable when a user requests a login form
+to ensure, that this initial session request is balanced non-sticky.
+</p>
</subsection>
</section>
</body>
Modified: tomcat/jk/trunk/xdocs/reference/uriworkermap.xml
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/xdocs/reference/uriworkermap.xml?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/xdocs/reference/uriworkermap.xml (original)
+++ tomcat/jk/trunk/xdocs/reference/uriworkermap.xml Thu Sep 22 18:01:31 2011
@@ -246,6 +246,27 @@ For a general description of reply timeo
<a href="../generic_howto/timeouts.html#Reply Timeout">timeouts</a>
documentation.
</p>
</subsection>
+<subsection name="Extension sticky_ignore">
+<br/>
+<p>
+The extension <code>sticky_ignore</code> can disable session stickyness for a
single mapping rule.
+<source>
+ # Disable session stickyness
+ # only for this mapping.
+ /myapp/loginform.jsp=myworker;sticky_ignore=1
+</source>
+This extension can be useful to optimize load balancing when using
+cookie based session stickyness. In this case, as long as she keeps
+her browser open, any request by a user who started a session will
+be send to the same Tomcat instance, even if he left the part of
+the application which uses the session. You can for instance
+set this environment variable when a user requests a login form
+to ensure, that this initial session request is balanced non-sticky.
+</p>
+<p>
+This extension is available since version 1.2.33.
+</p>
+</subsection>
<subsection name="Extensions active/disabled/stopped">
<br/>
<p>
Modified: tomcat/jk/trunk/xdocs/reference/workers.xml
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/xdocs/reference/workers.xml?rev=1174289&r1=1174288&r2=1174289&view=diff
==============================================================================
--- tomcat/jk/trunk/xdocs/reference/workers.xml (original)
+++ tomcat/jk/trunk/xdocs/reference/workers.xml Thu Sep 22 18:01:31 2011
@@ -503,6 +503,11 @@ Tomcat worker. If sticky_session is set
sticky_session is set to <b>False</b>. Set sticky_session to <b>False</b> when
Tomcat
is using a Session Manager which can persist session data across multiple
instances of Tomcat.
+<p>
+The <b>sticky_session</b> setting can be overwritten using the Apache httpd
+environment variable <b>JK_STICKY_IGNORE</b> and the worker map extension for
+<b>sticky_ignore</b>. This has been added in version <b>1.2.33</b>.
+</p>
</directive>
<directive name="sticky_session_force" default="False" required="false">
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