Skip to main content
NetApp Knowledge Base

Node in HA becomes slow and stops responding to SSH login attempts

  1. Last updated
  2. Save as PDF
Views:
78
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
cloud
Last Updated:

Applies to

  • ONTAP 9
  • Cloud Volumes ONTAP (CVO)
  • SSH

Issue

One node in HA pair becomes extremely slow and all login sessions to the node are being closed after successful authentication:
 
# ssh -vvv admin@10.0.0.1
OpenSSH_7.2p2, OpenSSL 1.0.2p-fips  14 Aug 2018
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 25: Applying options for *
debug2: resolving "10.0.0.1" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 10.0.0.1 [10.0.0.1] port 22.
debug1: Connection established.
 
...
 
debug1: Next authentication method: keyboard-interactive
debug2: userauth_kbdint
debug3: send packet: type 50
debug2: we sent a keyboard-interactive packet, wait for reply
debug3: receive packet: type 60
debug2: input_userauth_info_req
debug2: input_userauth_info_req: num_prompts 1
Password:
debug3: send packet: type 61
debug1: Authentication succeeded (keyboard-interactive).
Authenticated to 10.0.0.1 ([10.0.0.1]:22).
debug1: channel 0: new [client-session]
debug3: ssh_session2_open: channel_new: 0
debug2: channel 0: send open
debug3: send packet: type 90
debug1: Requesting no-more-sessions@openssh.com
debug3: send packet: type 80
debug1: Entering interactive session.
debug1: pledge: network
debug3: send packet: type 1
debug1: channel 0: free: client-session, nchannels 1
debug3: channel 0: status: The following connections are open:
  #0 client-session (t3 r-1 i0/0 o0/0 fd 5/6 cc -1)
 
Connection to 10.0.0.1 closed by remote host.
Connection to 10.0.0.1 closed.
Transferred: sent 2168, received 1540 bytes, in 0.0 seconds
Bytes per second: sent 23079317.4, received 16393980.1
debug1: Exit status -1
 
real    0m50.135s
user    0m0.015s
sys     0m0.000s
#

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.