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L4L7_53191's avatar
L4L7_53191
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Jan 17, 2008

Are there limits to Data Group name length?

A simple question (or two) on data groups:

 

 

Are there any practical limits on the length of a key or value in a data group? I'm writing a rule using a string class against various long-ish URIs and the question came up. If I am using a long key name, are there any performance implications for lookups?

 

 

TIA,

 

 

-Matt

5 Replies

  • dubdub's avatar
    dubdub
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    I'm running into this question also - I will be checking URIs against AD group membership, and the list of groups authorized for a particular URI could be longish - maybe up to 2K characters? Will that work?

     

     

    Thanks,

     

    Jen
  • I will be checking URIs against AD group membership, and the list of groups authorized for a particular URI could be longish - maybe up to 2K characters? Will that work? is this what you are looking for?

     

     

    sol12112: The maximum size for a single string in a class or data group is 65,520 characters

     

    https://support.f5.com/kb/en-us/solutions/public/12000/100/sol12112.html
  • dubdub's avatar
    dubdub
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    Hi Nitass,

     

     

    I was thinking more specifically for an individual value in a string data group, but that solution makes it sound like the entire list is limited to 65K. If so, that may make things more interesting and I will have to break up my data group into multiple groups. On the other hand, I know that data groups support up to 100K entries - so does that mean the 65K limit is just on a single entry then?

     

     

    Thanks,

     

    Jen
  • i understand 65k limit is on single string but data group size is limited on amount of memory.
  • dubdub's avatar
    dubdub
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    Excellent - 65K will more than cover what I need. Thanks, Nitass!!