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Cisco Bug: CSCvs67139 - Tune IMA policy to reduce recording of frequently changed files

Last Modified

Sep 16, 2020

Products (18)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco Network Convergence System 55A2-MOD-HD-S
  • Cisco NCS 540X-ACC-SYS Router
  • Cisco Network Convergence System 5504
  • Cisco Network Convergence System 5502-SE
  • Cisco Network Convergence System 5508
  • Cisco NCS 6008 - 8-Slot Chassis
  • Cisco Network Convergence System 5516
  • Cisco IOS XR Software
  • Cisco Network Convergence System 5502
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Known Affected Releases

6.6.1.BASE 6.6.1.CE 7.0.2.BASE 7.1.2.BASE 7.2.1.BASE

Description (partial)

In eXR platforms, there is no IMA policy in place to restrict recording of IMA events of tmp files. Hence, the IMA policy requires to be tuned to avoid measuring files that are known to change often (tmp/Volatile)

some files under /var/ and /misc/ directorys get access very frequently during run time, this make the IMA measurement table keep increase, take a lot of memory

over time, some dynamic file, like process log files get access by some process,
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