zabbix_管理_队列数据读取过程
时间 : 19-01-03 栏目 : linux运维 作者 : 老薛 评论 : 0 点击 : 248 次
系统环境
系统版本：CentOS release 6.7 (Final)
内核版本：2.6.32-573.el6.x86_64
软件版本：zabbix-3.4.1
一、 Zabbix web端构造请求
/*query.php文件*/
$queueData =
$zabbixServer->getQueue($queueRequests[$config],
get_cookie('zbx_sessionid'), QUEUE_DETAIL_ITEM_COUNT);
/*getQueue函数*/
include/classes/server/CZabbixServer.php
二、 Zabbix_web发送请求
/*request函数所在文件*/
frontends/php/include/classes/server/CZabbixServer.php
return $this->request($request);
$request
= [
'request' =>
'queue.get',
'sid' => $sid,
'type' => $type
];
/*queue.get 宏定义 所在文件*/
include/zbxjson.h:#define ZBX_PROTO_VALUE_GET_QUEUE "queue.get"
三、 Zabbix_server接收请求
/*src/zabbix_server/trapper/trapper.c*/
else if (0 == strcmp(value, ZBX_PROTO_VALUE_GET_QUEUE))
{
if (0 !=
(program_type & ZBX_PROGRAM_TYPE_SERVER))
ret =
recv_getqueue(sock, &jp);
}
/******************************************************************************
*
*
*
Function: recv_getqueue
*
*
*
*
Purpose: process queue request *
*
*
*
Parameters: sock - [IN] the request socket *
*
jp - [IN] the request data *
*
*
*
Return value: SUCCEED - processed
successfully *
* FAIL - an error occurred *
*
*
******************************************************************************/
static int recv_getqueue(zbx_socket_t *sock, struct
zbx_json_parse *jp)
{
const char
*__function_name = "recv_getqueue";
int ret =
FAIL, request_type = ZBX_GET_QUEUE_UNKNOWN, now, i, limit;
char
type[MAX_STRING_LEN], sessionid[MAX_STRING_LEN],
limit_str[MAX_STRING_LEN];
zbx_user_t user;
zbx_vector_ptr_t queue;
struct zbx_json json;
zbx_hashset_t queue_stats;
zbx_queue_stats_t *stats;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
if (FAIL == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_SID, sessionid,
sizeof(sessionid)) ||
SUCCEED != DBget_user_by_active_session(sessionid,
&user) || USER_TYPE_SUPER_ADMIN > user.type)
{
zbx_send_response_raw(sock,
ret, "Permission denied.", CONFIG_TIMEOUT);
goto out;
}
if (FAIL != zbx_json_value_by_name(jp, ZBX_PROTO_TAG_TYPE, type,
sizeof(type)))
{
if (0 == strcmp(type,
ZBX_PROTO_VALUE_GET_QUEUE_OVERVIEW))
{
request_type =
ZBX_GET_QUEUE_OVERVIEW;
}
else if (0 == strcmp(type,
ZBX_PROTO_VALUE_GET_QUEUE_PROXY))
{
request_type =
ZBX_GET_QUEUE_PROXY;
}
else if (0 == strcmp(type,
ZBX_PROTO_VALUE_GET_QUEUE_DETAILS))
{
request_type =
ZBX_GET_QUEUE_DETAILS;
if (FAIL == zbx_json_value_by_name(jp,
ZBX_PROTO_TAG_LIMIT, limit_str, sizeof(limit_str)) ||
FAIL ==
is_uint31(limit_str, &limit))
{
zbx_send_response_raw(sock, ret, "Unsupported limit value.",
CONFIG_TIMEOUT);
goto out;
}
}
}
if (ZBX_GET_QUEUE_UNKNOWN == request_type)
{
zbx_send_response_raw(sock,
ret, "Unsupported request type.", CONFIG_TIMEOUT);
goto out;
}
now = time(NULL);
zbx_vector_ptr_create(&queue);
/*Item结果延期队列查询*/
DCget_item_queue(&queue,
ZBX_QUEUE_FROM_DEFAULT, ZBX_QUEUE_TO_INFINITY);
zbx_json_init(&json, ZBX_JSON_STAT_BUF_LEN);
switch (request_type)
{
case ZBX_GET_QUEUE_OVERVIEW:
zbx_hashset_create(&queue_stats, 32, ZBX_DEFAULT_UINT64_HASH_FUNC,
ZBX_DEFAULT_UINT64_COMPARE_FUNC);
/* gather queue stats
by item type */
for (i = 0; i <
queue.values_num; i++)
{
zbx_queue_item_t *item =
queue.values[i];
zbx_uint64_t id =
item->type;
if (NULL ==
(stats = zbx_hashset_search(&queue_stats, &id)))
{
zbx_queue_stats_t data =
{.id = id};
stats =
zbx_hashset_insert(&queue_stats, &data, sizeof(data));
}
queue_stats_update(stats, now - item->nextcheck);
}
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE,
ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
queue_stats_export(&queue_stats, "itemtype", &json);
zbx_hashset_destroy(&queue_stats);
break;
case ZBX_GET_QUEUE_PROXY:
zbx_hashset_create(&queue_stats, 32,
ZBX_DEFAULT_UINT64_HASH_FUNC,
ZBX_DEFAULT_UINT64_COMPARE_FUNC);
/* gather queue stats
by proxy hostid */
for (i = 0; i <
queue.values_num; i++)
{
zbx_queue_item_t *item =
queue.values[i];
zbx_uint64_t id =
item->proxy_hostid;
if (NULL ==
(stats = zbx_hashset_search(&queue_stats, &id)))
{
zbx_queue_stats_t data =
{.id = id};
stats =
zbx_hashset_insert(&queue_stats, &data, sizeof(data));
}
queue_stats_update(stats, now - item->nextcheck);
}
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE,
ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
queue_stats_export(&queue_stats, "proxyid", &json);
zbx_hashset_destroy(&queue_stats);
break;
case ZBX_GET_QUEUE_DETAILS:
zbx_vector_ptr_sort(&queue,
(zbx_compare_func_t)queue_compare_by_nextcheck_asc);
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE,
ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
zbx_json_addarray(&json, ZBX_PROTO_TAG_DATA);
for (i = 0; i <
queue.values_num && i < limit; i++)
{
zbx_queue_item_t *item =
queue.values[i];
zbx_json_addobject(&json, NULL);
zbx_json_adduint64(&json, "itemid", item->itemid);
zbx_json_adduint64(&json,
"nextcheck", item->nextcheck);
zbx_json_close(&json);
}
zbx_json_close(&json);
zbx_json_adduint64(&json, "total", queue.values_num);
break;
}
zabbix_log(LOG_LEVEL_DEBUG, "%s() json.buffer:'%s'",
__function_name, json.buffer);
(void)zbx_tcp_send_raw(sock, json.buffer);
DCfree_item_queue(&queue);
zbx_vector_ptr_destroy(&queue);
zbx_json_free(&json);
ret = SUCCEED;
out:
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name,
zbx_result_string(ret));
return ret;
}
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