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/*
** Zabbix
** Copyright (C) 2000,2001,2002,2003,2004 Alexei Vladishev
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/wait.h>
#include <string.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
/* Required for getpwuid */
#include <pwd.h>
#include <signal.h>
#include <errno.h>
#include <time.h>
#include "common.h"
#include "cfg.h"
#include "db.h"
#include "log.h"
#include "housekeeper.h"
/* Remove items having status 'deleted' */
#ifdef ZABBIX_THREADS
void *housekeeping_items(MYSQL *database)
#else
int housekeeping_items(void)
#endif
{
char sql[MAX_STRING_LEN];
DB_RESULT *result;
int i,itemid;
snprintf(sql,sizeof(sql)-1,"select itemid from items where status=%d", ITEM_STATUS_DELETED);
#ifdef ZABBIX_THREADS
result = DBselect_thread(database, sql);
#else
result = DBselect(sql);
#endif
for(i=0;i<DBnum_rows(result);i++)
{
itemid=atoi(DBget_field(result,i,0));
#ifdef ZABBIX_THREADS
DBdelete_item_thread(database, itemid);
#else
DBdelete_item(itemid);
#endif
}
DBfree_result(result);
return SUCCEED;
}
/* Remove hosts having status 'deleted' */
#ifdef ZABBIX_THREADS
int housekeeping_hosts(MYSQL *database)
#else
int housekeeping_hosts(void)
#endif
{
char sql[MAX_STRING_LEN];
DB_RESULT *result;
int i,hostid;
snprintf(sql,sizeof(sql)-1,"select hostid from hosts where status=%d", HOST_STATUS_DELETED);
#ifdef ZABBIX_THREADS
result = DBselect_thread(database, sql);
#else
result = DBselect(sql);
#endif
for(i=0;i<DBnum_rows(result);i++)
{
hostid=atoi(DBget_field(result,i,0));
#ifdef ZABBIX_THREADS
DBdelete_host_thread(database, hostid);
#else
DBdelete_host(hostid);
#endif
}
DBfree_result(result);
return SUCCEED;
}
#ifdef ZABBIX_THREADS
int housekeeping_history_and_trends(MYSQL *database, int now)
#else
int housekeeping_history_and_trends(int now)
#endif
{
char sql[MAX_STRING_LEN];
DB_ITEM item;
DB_RESULT *result;
int i;
/* How lastdelete is used ??? */
snprintf(sql,sizeof(sql)-1,"select itemid,lastdelete,history,delay,trends from items where lastdelete<=%d", now);
#ifdef ZABBIX_THREADS
result = DBselect_thread(database, sql);
#else
result = DBselect(sql);
#endif
for(i=0;i<DBnum_rows(result);i++)
{
item.itemid=atoi(DBget_field(result,i,0));
item.lastdelete=atoi(DBget_field(result,i,1));
item.history=atoi(DBget_field(result,i,2));
item.delay=atoi(DBget_field(result,i,3));
item.trends=atoi(DBget_field(result,i,4));
if(item.delay==0)
{
item.delay=1;
}
/* Delete HISTORY */
#ifdef HAVE_MYSQL
snprintf(sql,sizeof(sql)-1,"delete from history where itemid=%d and clock<%d limit %d",item.itemid,now-24*3600*item.history,2*CONFIG_HOUSEKEEPING_FREQUENCY*3600/item.delay);
#else
snprintf(sql,sizeof(sql)-1,"delete from history where itemid=%d and clock<%d",item.itemid,now-24*3600*item.history);
#endif
#ifdef ZABBIX_THREADS
DBexecute_thread(database, sql);
#else
DBexecute(sql);
#endif
/* Delete HISTORY_STR */
#ifdef HAVE_MYSQL
snprintf(sql,sizeof(sql)-1,"delete from history_str where itemid=%d and clock<%d limit %d",item.itemid,now-24*3600*item.history,2*CONFIG_HOUSEKEEPING_FREQUENCY*3600/item.delay);
#else
snprintf(sql,sizeof(sql)-1,"delete from history_str where itemid=%d and clock<%d",item.itemid,now-24*3600*item.history);
#endif
#ifdef ZABBIX_THREADS
DBexecute_thread(database, sql);
#else
DBexecute(sql);
#endif
/* Delete HISTORY_TRENDS */
#ifdef HAVE_MYSQL
snprintf(sql,sizeof(sql)-1,"delete from trends where itemid=%d and clock<%d limit %d",item.itemid,now-24*3600*item.trends,2*CONFIG_HOUSEKEEPING_FREQUENCY*3600/item.delay);
#else
snprintf(sql,sizeof(sql)-1,"delete from trends where itemid=%d and clock<%d",item.itemid,now-24*3600*item.trends);
#endif
#ifdef ZABBIX_THREADS
DBexecute_thread(database,sql);
#else
DBexecute(sql);
#endif
snprintf(sql,sizeof(sql)-1,"update items set lastdelete=%d where itemid=%d",now,item.itemid);
#ifdef ZABBIX_THREADS
DBexecute_thread(database,sql);
#else
DBexecute(sql);
#endif
}
DBfree_result(result);
return SUCCEED;
}
#ifdef ZABBIX_THREADS
int housekeeping_sessions(MYSQL *database, int now)
#else
int housekeeping_sessions(int now)
#endif
{
char sql[MAX_STRING_LEN];
snprintf(sql,sizeof(sql)-1,"delete from sessions where lastaccess<%d",now-24*3600);
#ifdef ZABBIX_THREADS
DBexecute_thread(database,sql);
#else
DBexecute(sql);
#endif
return SUCCEED;
}
#ifdef ZABBIX_THREADS
int housekeeping_alerts(MYSQL *database, int now)
#else
int housekeeping_alerts(int now)
#endif
{
char sql[MAX_STRING_LEN];
int alert_history;
DB_RESULT *result;
int res = SUCCEED;
snprintf(sql,sizeof(sql)-1,"select alert_history from config");
#ifdef ZABBIX_THREADS
result = DBselect_thread(database, sql);
#else
result = DBselect(sql);
#endif
if(DBnum_rows(result) == 0)
{
zabbix_log( LOG_LEVEL_ERR, "No records in table 'config'.");
res = FAIL;
}
else
{
alert_history=atoi(DBget_field(result,0,0));
snprintf(sql,sizeof(sql)-1,"delete from alerts where clock<%d",now-24*3600*alert_history);
#ifdef ZABBIX_THREADS
DBexecute_thread(database,sql);
#else
DBexecute(sql);
#endif
}
DBfree_result(result);
return res;
}
#ifdef ZABBIX_THREADS
int housekeeping_alarms(MYSQL *database, int now)
#else
int housekeeping_alarms(int now)
#endif
{
char sql[MAX_STRING_LEN];
int alarm_history;
DB_RESULT *result;
int res = SUCCEED;
snprintf(sql,sizeof(sql)-1,"select alarm_history from config");
#ifdef ZABBIX_THREADS
result = DBselect_thread(database, sql);
#else
result = DBselect(sql);
#endif
if(DBnum_rows(result) == 0)
{
zabbix_log( LOG_LEVEL_ERR, "No records in table 'config'.");
res = FAIL;
}
else
{
alarm_history=atoi(DBget_field(result,0,0));
snprintf(sql,sizeof(sql)-1,"delete from alarms where clock<%d",now-24*3600*alarm_history);
#ifdef ZABBIX_THREADS
DBexecute_thread(database,sql);
#else
DBexecute(sql);
#endif
}
DBfree_result(result);
return res;
}
#ifdef ZABBIX_THREADS
void *main_housekeeper_loop()
#else
int main_housekeeper_loop()
#endif
{
int now;
#ifdef ZABBIX_THREADS
DB_HANDLE database;
#endif
#ifdef ZABBIX_THREADS
my_thread_init();
#endif
if(CONFIG_DISABLE_HOUSEKEEPING == 1)
{
for(;;)
{
/* Do nothing */
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("do nothing");
#endif
sleep(3600);
}
}
for(;;)
{
now = time(NULL);
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("connecting to the database");
#endif
#ifdef ZABBIX_THREADS
DBconnect_thread(&database);
#else
DBconnect();
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing deleted hosts]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_hosts(&database);
#else
housekeeping_hosts();
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing deleted items]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_items(&database);
#else
housekeeping_items();
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing old values]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_history_and_trends(&database, now);
#else
housekeeping_history_and_trends(now);
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing old alarms]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_alarms(&database, now);
#else
housekeeping_alarms(now);
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing old alerts]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_alerts(&database, now);
#else
housekeeping_alerts(now);
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [removing old sessions]");
#endif
#ifdef ZABBIX_THREADS
housekeeping_sessions(&database, now);
#else
housekeeping_sessions(now);
#endif
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [vacuuming database]");
#endif
#ifdef ZABBIX_THREADS
DBvacuum_thread(&database);
#else
DBvacuum();
#endif
zabbix_log( LOG_LEVEL_DEBUG, "Sleeping for %d hours", CONFIG_HOUSEKEEPING_FREQUENCY);
#ifdef HAVE_FUNCTION_SETPROCTITLE
setproctitle("housekeeper [sleeping for %d hour(s)]", CONFIG_HOUSEKEEPING_FREQUENCY);
#endif
#ifdef ZABBIX_THREADS
DBclose_thread(&database);
#else
DBclose();
#endif
sleep(3660*CONFIG_HOUSEKEEPING_FREQUENCY);
}
}
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