跳转到主内容

NetApp_Insight_2020.png 

High CPU due to large number of volume-list-info zapi calls

Views:
4
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
core
Last Updated:

Applies to

  • ONTAP 9.x
  • CPU utilization
  • volume-list-info ZAPI (Zephyr API)

Issue

  • High CPU across all nodes and Exempt Domain is 1000+%
  • Multiple volume-get-iter zapi calls are seen under APACHE-ACCESS.GZ log:

<client_ip> <cluster_ip> 4294967295 <user> [date] "POST /servlets/netapp.servlets.admin.XMLrequest_filer HTTP/1.1" 200 1569200 11993904 - 0 + volume-get-iter

  • Held connections are seen in APACHE-ERROR.GZ log

[date] [mpm_event:notice] [pid x:tid x] Holding a connection from ipspace ID -1, remote address <client_ip> while 119 others are held and 80 are active

[date] [mpm_event:notice] [pid x:tid x] A keepalive connection from ipspace ID -1, remote address <client_ip> is being suspended between requests while the 80-connection limit has been reached. (80 active, 120 waiting) Clients should limit the number of concurrent keepalive connections to avoid large performance penalties and/or failures.

 

CUSTOMER EXCLUSIVE CONTENT

Registered NetApp customers get unlimited access to our dynamic Knowledge Base.

New authoritative content is published and updated each day by our team of experts.

Current Customer or Partner?

Sign In for unlimited access

New to NetApp?

Learn more about our award-winning Support