Graphite | friendly API for working with graph data

In my application config i have defined the following properties:

I would like to create a graph of the proportion of total memory consumed by each of the following for a given instance:

• node_memory_MemFree_bytes{instance="$instance"}
• node_memory_MemAvailable_bytes{instance="$instance"}
• node_memory_Buffers_bytes{instance="$instance"}
• node_memory_Cached_bytes{instance="$instance"}

I know I can create a single graph from 4 separate queries where each metric is divided by node_memory_MemTotal_bytes{instance="$instance"}:

• Query A: node_memory_MemFree_bytes{instance="$instance"} / node_memory_MemTotal_bytes{instance="$instance"}
• Query B: node_memory_MemAvailable_bytes{instance="$instance"} / node_memory_MemTotal_bytes{instance="$instance"}
• Query C: node_memory_Buffers_bytes{instance="$instance"} / node_memory_MemTotal_bytes{instance="$instance"}
• Query D: node_memory_Cached_bytes{instance="$instance"} / node_memory_MemTotal_bytes{instance="$instance"}

I feel like there should be a terser way of doing this with group_left since the right hand side is the same for each query and the left hand side can be reduced to a single query:

• Left: {__name__=~"node_memory_(MemFree|MemAvailable|Buffers|Cached)_bytes",instance="$instance"}
• Right: node_memory_MemTotal_bytes{instance="$instance"}

If I understand the "Operators" docs and this blog post correctly, I should be able to use group_left to do this in a single query. However, I've been unable to do so.

I reason that since the left and right side of the equation have exactly the same labels excluding __name__, I shouldn't need to use ignoring or on for the group_left operator:

I am sending events through gatling using graphite protocol on default port 2003.All the set up is on local ( including influxdb and grafana as well).Now I want to verify in gatling logs that in actual events are passing through port 2003 .How to verify that ? In gatling debug logs I am not finding anything related with graphite or port 2003.

Please help. Also let me know if you want me to add more info.

I tried to improve the execution time of a script which import datas from CSV into Graphite/Go-Carbon DB time series.

this is the loop which parse all zipfiles and read them in function (execute_run) : It tried this code but i got an error:

I try to parse in python several csv file from several zip files, to inject in graphite timeseries DB.

I already posted a topic here how to parse one csv file manually, but now i'm trying to parse several csv from several zip files.

CSV files are composed as follow:

I try to read vertically a csv file as follow to insert in graphite/carbon timeseries DB with python.

I am working with some data and trying to populate a form dynamically. It works as I expected except when it comes to an array for one of the dropdowns. For some reason it will log to the console but not update the options.

So I have a table like this, where each ID is unique per row:

table1

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