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3157. [tuning] Reduce the time spent in "rndc reconfig" by parsing

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the config file before pausing the server. [RT #21373]
This commit is contained in:
Evan Hunt
2011-09-23 18:08:01 +00:00
parent 6921f2d4ee
commit 1219f8d194
2 changed files with 14 additions and 6 deletions
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17
bin/named/server.c
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@@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: server.c,v 1.619 2011/09/06 22:29:32 smann Exp $ */
/* $Id: server.c,v 1.620 2011/09/23 18:08:01 each Exp $ */
/*! \file */
@@ -4341,15 +4341,12 @@ load_configuration(const char *filename, ns_server_t *server,
ns_cache_t *nsc;
struct cfg_context *nzctx;
int num_zones = 0;
isc_boolean_t exclusive = ISC_FALSE;
ISC_LIST_INIT(viewlist);
ISC_LIST_INIT(builtin_viewlist);
ISC_LIST_INIT(cachelist);
/* Ensure exclusive access to configuration data. */
result = isc_task_beginexclusive(server->task);
RUNTIME_CHECK(result == ISC_R_SUCCESS);
/* Create the ACL configuration context */
if (ns_g_aclconfctx != NULL)
cfg_aclconfctx_detach(&ns_g_aclconfctx);
@@ -4445,6 +4442,13 @@ load_configuration(const char *filename, ns_server_t *server,
CHECK(result);
}
/* Ensure exclusive access to configuration data. */
if (!exclusive) {
result = isc_task_beginexclusive(server->task);
RUNTIME_CHECK(result == ISC_R_SUCCESS);
exclusive = ISC_TRUE;
}
/*
* Set process limits, which (usually) needs to be done as root.
*/
@@ -5212,7 +5216,8 @@ load_configuration(const char *filename, ns_server_t *server,
adjust_interfaces(server, ns_g_mctx);
/* Relinquish exclusive access to configuration data. */
isc_task_endexclusive(server->task);
if (exclusive)
isc_task_endexclusive(server->task);
isc_log_write(ns_g_lctx, NS_LOGCATEGORY_GENERAL, NS_LOGMODULE_SERVER,
ISC_LOG_DEBUG(1), "load_configuration: %s",