TxPtrListEmpty

Measurement Group: Diameter Ingress Transaction Exception

Measurement Type: Simple

Measurement Dimension: Single

Description: The number of ingress Diameter Request messages that were discarded because no PTR Buffers were available.

Collection Interval: 5 min

Peg Condition: When any DRL thread within the Diameter Process needs to allocate a PTR Buffer from the PTR Buffer Pool and the number of allocated PTRs from a PTR Buffer Pool is less than the maximum configured capacity of PTR Buffers then:
  • A PTR Buffer shall be allocated from the PTR Buffer Pool
  • The count for the number of allocated PTRs from a PTR Buffer Pool shall be incremented by one.

Measurement Scope: Server Group

Recovery:

  1. If both the peak and average measurements for multiple MPs within a Network Element are consistently near the recommended maximum engineered capacity of an MP when the Ingress Message Rate and/or Diameter Process CPU Utilization measurements are below the recommended maximum engineered capacity of an MP, then a network (IP or Diameter) problem may exist. Looking at these measurements on a time of day basis may provide additional insight into potential network problems.
  2. If the peak and average for an individual MP is significantly different than other MPs in the same Network Element then an MP-specific software problem may exist (e.g., a buffer pool leak).
  3. Contact My Oracle Support (MOS) for assistance if needed.
Parent topic: Diameter Ingress Transaction Exception measurements