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StorageGRID client observes slow GET response time and load balancer 499 timeout

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Applies to

  • StorageGRID 11.6.0.12 or earlier
  • StorageGRID 11.7.0.5 or earlier
  • History of ADC Storage Node decommissioning

Issue

  • Client reports very slow GET response times
  • audit-sum script can be used on /var/local/audit/export to summarize recent activity

/var/local/audit/export # audit-sum audit.log
message group        count     min(sec)        max(sec)    average(sec)
=============        =====     ========        ========    ============
SDEL                 13355085     0.005          64.642           9.890
SGET                 1763885      0.001       34346.196          19.277
SHEA                 1077045      0.000           1.252           0.005
SPUT                 4812323      0.003          50.772           0.029

Note: The audit-sum queries has possibility to impact StorageGRID operations as described in Use audit-sum tool

  • Diagnostic report  by Run diagnostics shows large amounts of 499 timeouts for  Load balancer - request timeout

LoadBalancer_requestTimeouts.png

 

 

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