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Jayme_41167's avatar
Jayme_41167
Icon for Nimbostratus rankNimbostratus
Dec 03, 2014

F5 LTM increasing "TMM Used Memory"

Hi. I have a BIGIP run LTM 11.5.1 HF2 only. My TMM Used Memory increasing indefinitely.   I believe that the Subsystem xdata is responsible. What is the xdata?   I run the command:   tmsh s...
application delivery
LTM
management
memory
tmm
TMOS
Syed_Nazir_1624's avatar
Syed_Nazir_1624
Icon for Cirrus rankCirrus
Dec 04, 2014

Xdata is used as a temporary buffer for storing TCP data that is not acked by either client or server. Either the client or the server is slow. Check the xdata after closing all the client and server side connection it should come down.

 

  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Dec 04, 2014
    Very interesting, thank you.
  • Jayme_41167's avatar
    Jayme_41167
    Icon for Nimbostratus rankNimbostratus
    Dec 04, 2014
    At dawn the connections go to 0 (only get the monitoring of connections Servers - icmp and http), but the xdata not decreases. Does memory leak? Thanks.
  • Jayme_41167's avatar
    Jayme_41167
    Icon for Nimbostratus rankNimbostratus
    Dec 04, 2014
    I saw on the dashboard that whenever there is a peak traffic, xdata size increases and consequently the memory used TMM also increases. This helps in anything? Thanks.
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