Hello everybody,
I'm trying to understand what decides whether the graph is displaying the values from its History or its Trends values...
Example:
I have an Item which I want to read each 60 seconds. I want to have 400 days of history values available for me. I need to see these values in this precision even if they are one year old. That's why I need cca 400 days of History.
And because by default one value in the History table (DB) takes about 50 bytes and one value in the Trends table (DB) takes about 128 B, I would rather use only the History data. = set it like this:
Update interval - 60 seconds
Keep history for - 400 days
Keep trends for - 0 days
But I found that if I want to display a graph with a period 5 days or longer, it uses the Trends table, but because I do not store Trend values, I cannot see anything. I need to display just 4 days, not more.
So the question is: For displaying longer periods in Graphs (> 4 days) I need to store the Trends too. Not just the History data. Is that correct? Or can I do it differently?
(using Zabbix 2.0.6, will migrate to 2.2)
I'm trying to understand what decides whether the graph is displaying the values from its History or its Trends values...
Example:
I have an Item which I want to read each 60 seconds. I want to have 400 days of history values available for me. I need to see these values in this precision even if they are one year old. That's why I need cca 400 days of History.
And because by default one value in the History table (DB) takes about 50 bytes and one value in the Trends table (DB) takes about 128 B, I would rather use only the History data. = set it like this:
Update interval - 60 seconds
Keep history for - 400 days
Keep trends for - 0 days
But I found that if I want to display a graph with a period 5 days or longer, it uses the Trends table, but because I do not store Trend values, I cannot see anything. I need to display just 4 days, not more.
So the question is: For displaying longer periods in Graphs (> 4 days) I need to store the Trends too. Not just the History data. Is that correct? Or can I do it differently?
(using Zabbix 2.0.6, will migrate to 2.2)
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