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institute afsdb dns lookup timeout if we can

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don't be willing to wait more than about an rx timeout period for afsdb
retries.

Change-Id: Idca642ff7abe6b9233c7501b0f06fd353567bb04
Reviewed-on: http://gerrit.openafs.org/1407
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Simon Wilkinson <sxw@inf.ed.ac.uk>
Reviewed-by: Derrick Brashear <shadow@dementia.org>
This commit is contained in:
Derrick Brashear 2010-02-27 11:52:03 -05:00
parent d24078658d
commit fb79f12658
3 changed files with 37 additions and 0 deletions
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2
acinclude.m4
View File

@ -1185,6 +1185,8 @@ else
fi
AC_CHECK_RESOLV_RETRANS
AC_CACHE_VAL(ac_cv_setsockopt_iprecverr,
[
AC_MSG_CHECKING([for setsockopt(, SOL_IP, IP_RECVERR)])

12
src/auth/cellconfig.c
View File

@ -1027,6 +1027,18 @@ afsconf_LookupServer(const char *service, const char *protocol,
if (!dotcellname)
return AFSCONF_NOTFOUND; /* service not found */
#ifdef HAVE_RES_RETRANSRETRY
if ((_res.options & RES_INIT) == 0 && res_init() == -1)
return (0);
/*
* Rx timeout is typically 56 seconds; limit user experience to
* similar timeout
*/
_res.retrans = 18;
_res.retry = 3;
#endif
retryafsdb:
switch (pass) {
case 0:

23
src/cf/ressearch.m4
View File

@ -1,3 +1,26 @@
AC_DEFUN([AC_CHECK_RESOLV_RETRANS],[
AC_CACHE_CHECK([for retransmit support in res_state], [ac_cv_res_retransretry],[
AC_TRY_RUN( [
#include <sys/types.h>
#if defined(__sun__)
#include <inet/ip.h>
#endif
#include <resolv.h>
int main(void) {
_res.retrans = 2;
_res.retry = 1;
exit(0);
}
],[
ac_cv_res_retransretry=1
],[
ac_cv_res_retransretry=
],[
ac_cv_res_retransretry="no"
])])
AC_DEFINE_UNQUOTED([HAVE_RES_RETRANSRETRY], [$ac_cv_res_retransretry], [Define if resolv.h's res_state has the fields retrans/rety])
])
AC_DEFUN([AC_FUNC_RES_SEARCH], [
ac_cv_func_res_search=no
AC_TRY_LINK([