Skip to main content
NetApp Knowledge Base

StorageGRID diagnostics reports TCP Retransmit Errors on the gateway node due to custom alert

  1. Last updated
  2. Save as PDF
Views:
20
Visibility:
Public
Votes:
0
Category:
storagegrid
Specialty:
sgrid
Last Updated:

Applies to

  • StorageGRID 
  •  Custom Prometheus alerting for TCP retransmission

Issue

Recurring TCP retransmit errors are reported on a single StorageGRID node’s client network interface, which acts as a gateway/load balancer. These are detected by a custom Prometheus alert. 

Example log output / alert:

TCP-RetransmitErrorsforStorageGridNodes

Prometheus query: increase(node_netstat_Tcp_RetransSegs[1h])  sumwithout(device)(increase(node_network_transmit_packets_total{device=~"eth.+"}[1h])) >= 0.003 (minor), 0.004 (major/critical)

 

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.