Hi !
delta(#n) function is not working in 1.1.2.
Here is the following snippet of code from evalfunc.c
rows seem to be never incremented. First test on rows should be 'rows++==0'.
Another problem with delta is that the templates given out with zabbix call delta with parameter 0. Therefore, the condition in the SQL select if clock>now (now-parameter=now with parameter to 0). Then, delta is always empty.
delta(#n) function is not working in 1.1.2.
Here is the following snippet of code from evalfunc.c
Code:
else if(flag == ZBX_FLAG_VALUES)
{
snprintf(sql,sizeof(sql)-1,"select value from history where itemid=%d order by clock desc",item->itemid);
result = DBselectN(sql,parameter);
rows=0;
while((row=DBfetch(result)))
{
f=atof(row[0]);
if(rows==0)
{
min=f;
max=f;
}
else
{
if(f>max) max=f;
if(f<min) min=f;
}
}
if(rows==0)
{
zabbix_log(LOG_LEVEL_DEBUG, "Result for DELTA is empty" );
res = FAIL;
}
else
{
snprintf(value,MAX_STRING_LEN-1,"%f", max-min);
}
}
Another problem with delta is that the templates given out with zabbix call delta with parameter 0. Therefore, the condition in the SQL select if clock>now (now-parameter=now with parameter to 0). Then, delta is always empty.