updating tag values in opentsdb

[gsaray101]

Hi group, I really need help updating tag values in opentsdb. I read through the docs but still not clear the best way to do this.

I am pushing cpu, memory utilization data to opentsdb. I would like to tag each server with app name so that I can organize my data based on application, server etc. There are instances of servers where I cannot classified for an application there I will tag the this metrics as other for example

pctCPU 20 server=j2kdc1 app=Other

At some point if I know the name of the application this server j2kdc1 belongs to, I want to be able update the tag from Other to some application name like Messaging.

pctCPU 20 server=j2kdc1 app=Messaging

Does any body have any idea, how could I easily do this? Any thoughts?

[manolama]

Unfortunately don't have a way to do that right now. It's pretty involved in that you need to scan all of the rows in HBase for the given metric, write new rows with the new tags, then delete the old ones. I may get to it eventually but if you have time to work on it, that'd be great!

[gsaray101]

@manolama OpenTSDB is great idea for performance and storage but for it to be really enterprise ready, we have to be able to update the tags on the fly since tags are the integral part of this technology. If you have 10s of thousands of servers etc, writing rows with new tags and deleting the old ones would take very long time to complete and in the mean time stopping updating. That will not work. Is there any other way you could think of to address is this in the mean time?

[gsaray101]

@manolama Also, you tagged this as medium but if you really use trees based on tags, I think this feature is extremely important to me.

[biswaKL]

Yes this is an very important feature, in data validation point of view, we should be able to tag the data as valid or invalid whenever we want. I am facing a lot of issue because of this and unable to update the tags.