/******************************************************************************
* *
* Function: get_history_lastid: *
* *
* Purpose: get last history id from master node *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int get_history_lastid(int master_nodeid, int nodeid, ZBX_TABLE *table, zbx_uint64_t *lastid)
{
zbx_sock_t sock;
char data[MAX_STRING_LEN], *answer;
int res = FAIL;
zabbix_log(LOG_LEVEL_DEBUG, "In get_history_lastid()");
if (SUCCEED == connect_to_node(master_nodeid, &sock)) {
zbx_snprintf(data, sizeof(data), "ZBX_GET_HISTORY_LAST_ID%c%d%c%d\n%s%c%s",
ZBX_DM_DELIMITER, CONFIG_NODEID,
ZBX_DM_DELIMITER, nodeid,
table->table, ZBX_DM_DELIMITER, table->recid);
if (FAIL == send_data_to_node(master_nodeid, &sock, data))
goto disconnect;
if (FAIL == recv_data_from_node(master_nodeid, &sock, &answer))
goto disconnect;
if (0 == strncmp(answer, "FAIL", 4)) {
zabbix_log( LOG_LEVEL_ERR, "NODE %d: get_history_lastid() FAIL from node %d for node %d",
CONFIG_NODEID,
master_nodeid,
nodeid);
goto disconnect;
}
ZBX_STR2UINT64(*lastid, answer);
res = SUCCEED;
disconnect:
disconnect_node(&sock);
}
return res;
}
/******************************************************************************
* *
* Function: send_to_node *
* *
* Purpose: send configuration changes to required node *
* *
* Parameters: *
* *
* Return value: SUCCESS - processed successfully *
* FAIL - an error occurred *
* *
* Author: Alexei Vladishev *
* *
* Comments: *
* *
******************************************************************************/
int send_to_node(const char *name, int dest_nodeid, int nodeid, char *data)
{
int ret = FAIL;
zbx_sock_t sock;
char *answer;
zabbix_log(LOG_LEVEL_WARNING, "NODE %d: Sending %s of node %d to node %d datalen " ZBX_FS_SIZE_T,
CONFIG_NODEID, name, nodeid, dest_nodeid, (zbx_fs_size_t)strlen(data));
if (FAIL == connect_to_node(dest_nodeid, &sock))
return FAIL;
if (FAIL == send_data_to_node(dest_nodeid, &sock, data))
goto disconnect;
if (FAIL == recv_data_from_node(dest_nodeid, &sock, &answer))
goto disconnect;
if (0 == strcmp(answer, "OK"))
{
zabbix_log( LOG_LEVEL_DEBUG, "OK");
ret = SUCCEED;
}
else
{
zabbix_log( LOG_LEVEL_WARNING, "NOT OK");
}
disconnect:
disconnect_node(&sock);
return ret;
}
/******************************************************************************
* *
* Function: process_nodes *
* *
* Purpose: calculates checksums of config data *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Alexander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
void process_nodes()
{
DB_RESULT result;
DB_ROW row;
int nodeid;
int master_nodeid;
char *data, *answer;
zbx_sock_t sock;
int res;
int sender_nodeid;
master_nodeid = CONFIG_MASTER_NODEID;
if (0 == master_nodeid)
return;
result = DBselect("select nodeid from nodes");
while (NULL != (row=DBfetch(result))) {
nodeid = atoi(row[0]);
if (SUCCEED == is_master_node(CONFIG_NODEID, nodeid))
continue;
node_sync_lock(nodeid);
/* DBbegin();*/
res = calculate_checksums(nodeid, NULL, 0);
if (SUCCEED == res && NULL != (data = get_config_data(nodeid, ZBX_NODE_MASTER))) {
zabbix_log( LOG_LEVEL_WARNING, "NODE %d: Sending configuration changes to master node %d for node %d datalen %d",
CONFIG_NODEID,
master_nodeid,
nodeid,
strlen(data));
if (SUCCEED == (res = connect_to_node(master_nodeid, &sock))) {
if (SUCCEED == res)
res = send_data_to_node(master_nodeid, &sock, data);
if (SUCCEED == res)
res = recv_data_from_node(master_nodeid, &sock, &answer);
if (SUCCEED == res && 0 == strncmp(answer, "Data", 4)) {
res = update_checksums(nodeid, ZBX_NODE_MASTER, SUCCEED, NULL, 0, NULL);
if (SUCCEED == res)
res = node_sync(answer, &sender_nodeid, &nodeid);
send_data_to_node(master_nodeid, &sock, SUCCEED == res ? "OK" : "FAIL");
}
disconnect_node(&sock);
}
zbx_free(data);
}
/* DBcommit();*/
node_sync_unlock(nodeid);
}
DBfree_result(result);
}
GList*
g_list_remove_link (GList *list, GList *link)
{
if (list == link)
list = list->next;
disconnect_node (link);
link->next = NULL;
link->prev = NULL;
return list;
}
GList*
g_list_remove (GList *list, gconstpointer data)
{
GList *current = g_list_find (list, data);
if (!current)
return list;
if (current == list)
list = list->next;
g_list_free_1 (disconnect_node (current));
return list;
}
/******************************************************************************
* *
* Function: get_trends_lastid: *
* *
* Purpose: get last history lastid and lastclock from master node *
* *
* Parameters: *
* *
* Return value: *
* *
* Author: Aleksander Vladishev *
* *
* Comments: *
* *
******************************************************************************/
static int get_trends_lastid(int master_nodeid, int nodeid, ZBX_TABLE *table, zbx_uint64_t *lastid, int *lastclock)
{
zbx_sock_t sock;
char data[MAX_STRING_LEN], *answer, *ptr;
int res = FAIL;
zabbix_log(LOG_LEVEL_DEBUG, "In get_trends_lastclock()");
if (SUCCEED == connect_to_node(master_nodeid, &sock)) {
zbx_snprintf(data, sizeof(data), "ZBX_GET_TRENDS_LAST_ID%c%d%c%d\n%s",
ZBX_DM_DELIMITER, CONFIG_NODEID,
ZBX_DM_DELIMITER, nodeid,
table->table);
if (FAIL == send_data_to_node(master_nodeid, &sock, data))
goto disconnect;
if (FAIL == recv_data_from_node(master_nodeid, &sock, &answer))
goto disconnect;
if (0 == strncmp(answer, "FAIL", 4)) {
zabbix_log( LOG_LEVEL_ERR, "NODE %d: get_trends_lastid() FAIL from node %d for node %d",
CONFIG_NODEID,
master_nodeid,
nodeid);
goto disconnect;
}
if (NULL != (ptr = strchr(answer, ZBX_DM_DELIMITER))) {
*ptr++ = '\0';
ZBX_STR2UINT64(*lastid, answer);
*lastclock = atoi(ptr);
res = SUCCEED;
}
disconnect:
disconnect_node(&sock);
}
return res;
}
