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StorageGRID appliance detects Node network connectivity error due to dropped packets

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storagegrid
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Applies to

StorageGRID appliance

Issue

  • Node network connectivity error alert is detected in ALERTS > Current due to node connectivity error

95f8a1c1-c8b5-4bcd-89f0-8e3dd97b98c6_1.png

  • Run diagnostics detects the node as Attention status in TCP retransmission rate

95f8a1c1-c8b5-4bcd-89f0-8e3dd97b98c6_2.png

  • Command ifconfig indicates multiple ports on this node detect many dropped packets

Example:

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet <IPV4_ADDRESS>  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 <IPV6_ADDRESS>  prefixlen 64  scopeid 0x20<link>
        ether <ADDRESS>  txqueuelen 1000  (Ethernet)
        RX packets 2438077  bytes 1270068837 (1.1 GiB)
        RX errors 0  dropped 33600  overruns 0  frame 0
        TX packets 256221  bytes 925417312 (882.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

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