1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
** Zabbix
** Copyright (C) 2001-2021 Zabbix SIA
**
** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "log.h"
#include "zbxself.h"
#include "zbxavailability.h"
#include "zbxipcservice.h"
#include "avail_manager.h"
#include "daemon.h"
#include "sighandler.h"
#include "dbcache.h"
#include "zbxalgo.h"
#include "avail_protocol.h"
extern ZBX_THREAD_LOCAL unsigned char process_type;
extern unsigned char program_type;
extern ZBX_THREAD_LOCAL int server_num, process_num;
static sigset_t orig_mask;
#define ZBX_AVAILABILITY_MANAGER_DELAY 1
#define ZBX_AVAILABILITY_MANAGER_FLUSH_DELAY_SEC 5
static int interface_availability_compare(const void *d1, const void *d2)
{
const zbx_interface_availability_t *ia1 = *(const zbx_interface_availability_t **)d1;
const zbx_interface_availability_t *ia2 = *(const zbx_interface_availability_t **)d2;
ZBX_RETURN_IF_NOT_EQUAL(ia1->interfaceid, ia2->interfaceid);
return ia1->id - ia2->id;
}
ZBX_THREAD_ENTRY(availability_manager_thread, args)
{
zbx_ipc_service_t service;
char *error = NULL;
zbx_ipc_client_t *client;
zbx_ipc_message_t *message;
int ret, processed_num = 0;
double time_stat, time_idle = 0, time_now, time_flush, sec;
zbx_vector_availability_ptr_t interface_availabilities;
zbx_timespec_t timeout = {ZBX_AVAILABILITY_MANAGER_DELAY, 0};
#define STAT_INTERVAL 5 /* if a process is busy and does not sleep then update status not faster than */
/* once in STAT_INTERVAL seconds */
process_type = ((zbx_thread_args_t *)args)->process_type;
server_num = ((zbx_thread_args_t *)args)->server_num;
process_num = ((zbx_thread_args_t *)args)->process_num;
zabbix_log(LOG_LEVEL_INFORMATION, "%s #%d started [%s #%d]", get_program_type_string(program_type),
server_num, get_process_type_string(process_type), process_num);
update_selfmon_counter(ZBX_PROCESS_STATE_BUSY);
zbx_setproctitle("%s #%d [connecting to the database]", get_process_type_string(process_type), process_num);
DBconnect(ZBX_DB_CONNECT_NORMAL);
if (FAIL == zbx_ipc_service_start(&service, ZBX_IPC_SERVICE_AVAILABILITY, &error))
{
zabbix_log(LOG_LEVEL_CRIT, "cannot start availability manager service: %s", error);
zbx_free(error);
exit(EXIT_FAILURE);
}
/* initialize statistics */
time_stat = zbx_time();
time_flush = time_stat;
zbx_vector_availability_ptr_create(&interface_availabilities);
zbx_setproctitle("%s #%d started", get_process_type_string(process_type), process_num);
while (ZBX_IS_RUNNING())
{
time_now = zbx_time();
if (STAT_INTERVAL < time_now - time_stat)
{
zbx_setproctitle("%s #%d [queued %d, processed %d values, idle "
ZBX_FS_DBL " sec during " ZBX_FS_DBL " sec]",
get_process_type_string(process_type), process_num,
interface_availabilities.values_num, processed_num, time_idle, time_now - time_stat);
time_stat = time_now;
time_idle = 0;
processed_num = 0;
}
update_selfmon_counter(ZBX_PROCESS_STATE_IDLE);
ret = zbx_ipc_service_recv(&service, &timeout, &client, &message);
update_selfmon_counter(ZBX_PROCESS_STATE_BUSY);
sec = zbx_time();
zbx_update_env(sec);
if (ZBX_IPC_RECV_IMMEDIATE != ret)
time_idle += sec - time_now;
if (NULL != message)
{
zbx_availability_deserialize(message->data, message->size, &interface_availabilities);
zbx_ipc_message_free(message);
}
if (NULL != client)
zbx_ipc_client_release(client);
if (ZBX_AVAILABILITY_MANAGER_FLUSH_DELAY_SEC < time_now - time_flush)
{
time_flush = time_now;
if (0 == interface_availabilities.values_num)
continue;
zbx_block_signals(&orig_mask);
zbx_vector_availability_ptr_sort(&interface_availabilities, interface_availability_compare);
zbx_db_update_interface_availabilities(&interface_availabilities);
zbx_unblock_signals(&orig_mask);
processed_num = interface_availabilities.values_num;
zbx_vector_availability_ptr_clear_ext(&interface_availabilities,
zbx_interface_availability_free);
}
}
zbx_block_signals(&orig_mask);
if (0 != interface_availabilities.values_num)
{
zbx_vector_availability_ptr_sort(&interface_availabilities, interface_availability_compare);
zbx_db_update_interface_availabilities(&interface_availabilities);
}
DBclose();
zbx_unblock_signals(&orig_mask);
exit(EXIT_SUCCESS);
#undef STAT_INTERVAL
}
|
