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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the License).
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/CDDL.txt
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/CDDL.txt.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets [] replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  *
     26  * apache_update.c - Update method for highly available apache
     27  */
     28 
     29 #pragma ident	"@(#)apache_update.c	1.21	07/06/06 SMI"
     30 
     31 #include <stdio.h>
     32 #include <stdlib.h>
     33 #include <signal.h>
     34 #include <rgm/libdsdev.h>
     35 
     36 /*
     37  * Some of the resource properties might have been updated. All such
     38  * updatable properties are related to the fault monitor. Hence, just
     39  * restarting the monitor should be enough.
     40  */
     41 
     42 int
     43 main(int argc, char *argv[])
     44 {
     45 	scds_handle_t   scds_handle;
     46 	scha_err_t	result;
     47 
     48 	/* Process the arguments passed by RGM and initialize syslog */
     49 	if (scds_initialize(&scds_handle, argc, argv) != SCHA_ERR_NOERR)
     50 		return (1);
     51 
     52 	/*
     53 	 * check if the Fault monitor is already running and if so stop and
     54 	 * restart it. The second parameter to scds_pmf_restart_fm() uniquely
     55 	 * identifies the instance of the fault monitor that needs to be
     56 	 * restarted.
     57 	 */
     58 
     59 	result = scds_pmf_restart_fm(scds_handle, 0);
     60 	if (result != SCHA_ERR_NOERR) {
     61 		/*
     62 		 * SCMSGS
     63 		 * @explanation
     64 		 * The resource property that was updated needed the fault
     65 		 * monitor to be restarted inorder for the change to take
     66 		 * effect, but the attempt to restart the fault monitor
     67 		 * failed.
     68 		 * @user_action
     69 		 * Look at the prior syslog messages for specific problems.
     70 		 * Correct the errors if possible.
     71 		 *
     72 		 * Look for the process <dataservice>_probe operating on the
     73 		 * desired resource (indicated by the argument to "-R"
     74 		 * option). This can be found from the command: ps -ef | egrep
     75 		 * <dataservice>_probe | grep "\-R <resourcename>" Send a kill
     76 		 * signal to this process.
     77 		 *
     78 		 * If the process does not get killed and restarted by the
     79 		 * process monitor facility, reboot the node.
     80 		 */
     81 		scds_syslog(LOG_ERR,
     82 			"Failed to restart fault monitor.");
     83 		/* Free up all the memory allocated by scds_initialize */
     84 		scds_close(&scds_handle);
     85 		return (1);
     86 	}
     87 
     88 	/*
     89 	 * SCMSGS
     90 	 * @explanation
     91 	 * Data service method completed successfully.
     92 	 * @user_action
     93 	 * No action required.
     94 	 */
     95 	scds_syslog(LOG_INFO,
     96 		"Completed successfully.");
     97 
     98 	/* Free up all the memory allocated by scds_initialize */
     99 	scds_close(&scds_handle);
    100 
    101 	return (0);
    102 }
    103