Hi Hubert,
My server is up since about 24h...
Does someone has ever since this kind of error, this is the log of
mod_mono (in verbose mode)...
It looks like mono was running out of wapi handles.
I don't know which is the max handle count or whether
all handles share the same table. For the latter,
the error may be unrelated to threading. Maybe you
forget to close some files after each request.
Mod_mono does'nt restart mod_mono_server automatically when
mod_mono_server crashes, so i'm writing a program that manages my
"mod_mono_servers"...
I've patched mod_mono to do this. It's not bullet-proof,
but it works for us. Take care to always remove all
lock files /tmp/mod_mono* file before starting apache.
Robert
thanks
** (/usr/lib/pkgconfig/../../lib/xsp/1.0/mod-mono-server.exe:6649):
WARNING **: CreateThread: error creating thread handle
Unhandled Exception: System.ExecutionEngineException: Couldn't create
thread
in <0x00000> <unknown method>
in (wrapper delegate-begin-invoke)
System.MulticastDelegate:begin_invoke_IAsyncResult_object_AsyncCallback_object
(object,System.AsyncCallback,object)
in <0x00012> System.Threading.ThreadPool:QueueUserWorkItem
(System.Threading.WaitCallback callback)
in <0x00226> Mono.WebServer.ApplicationServer:RunServer ()
in (wrapper delegate-invoke) System.MulticastDelegate:invoke_void ()
Index: src/mod_mono.c
===================================================================
--- src/mod_mono.c (revision 57897)
+++ src/mod_mono.c (working copy)
@@ -82,6 +82,9 @@
char auto_app_set;
} module_cfg;
+static int
+restart_xsp (request_rec *r, module_cfg *config, char *alias);
+
/* */
static int
search_for_alias (const char *alias, module_cfg *config)
@@ -790,6 +793,11 @@
{
return apr_pstrcat (pool, base, "_", alias == NULL ? "default" : alias,
NULL);
}
+static char *
+get_default_socket_lock_name (apr_pool_t *pool, const char *alias, const char
*base)
+{
+ return apr_pstrcat (pool, base, "_", alias == NULL ? "default" : alias,
".mutex", NULL);
+}
static apr_status_t
try_connect (xsp_data *conf, apr_socket_t **sock, apr_pool_t *pool)
@@ -1387,14 +1395,21 @@
#endif
rv = setup_socket (&sock, &config->servers [idx], r->pool);
DEBUG_PRINT (2, "After setup_socket");
- if (rv != APR_SUCCESS)
+ if (rv != APR_SUCCESS) {
+ /* recoverable? */
+ if (rv == -1) {
+ restart_xsp (r, config, config->servers [idx].alias);
+ }
+ apr_table_addn (r->headers_out, "Retry-After", "10");
return HTTP_SERVICE_UNAVAILABLE;
+ }
DEBUG_PRINT (2, "Sending init data");
if (send_initial_data (r, sock, auto_app) != 0) {
int err = errno;
DEBUG_PRINT (1, "%d: %s", err, strerror (err));
apr_socket_close (sock);
+ apr_table_addn (r->headers_out, "Retry-After", "10");
return HTTP_SERVICE_UNAVAILABLE;
}
@@ -1611,6 +1626,23 @@
}
static int
+restart_xsp (request_rec *r, module_cfg *config, char *alias)
+{
+ char *mutex = get_default_socket_lock_name (r->pool,
+ alias ? alias : "global", SOCKET_FILE);
+
+ int fd = open (mutex, O_CREAT|O_EXCL, S_IRUSR|S_IWUSR);
+ if (fd == -1) return FALSE;
+
+ terminate_xsp2 (r->server, alias);
+ start_xsp (config, 1, alias);
+ close (fd);
+ unlink (mutex);
+
+ return TRUE;
+}
+
+static int
mono_control_panel_handler (request_rec *r)
{
module_cfg *config;
@@ -1654,8 +1686,9 @@
char *alias = uri->query + 8; /* +8 == .Substring(8) */
if (!strcmp (alias, "ALL"))
alias = NULL;
- terminate_xsp2 (r->server, alias);
- start_xsp (config, 1, alias);
+
+ restart_xsp (r, config, alias);
+
request_send_response_string (r, "<div
style=\"text-align: center;\">mod-mono-server processes
restarted.</div><br>\n");
} else {
/* Invalid command. */
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