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CAIQUM-6361: AIQUM polls failing intermittently post ONTAP upgrade to 9.15.1P1

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Issue

  • Intermittent failures of cluster polling in AIQUM 9.14
  • Issue started after ONTAP upgrade to 9.15.1P1
  • AU.log complains about some ZAPI failures with end of file:
   
     WARN  [foundation-poll-1] c.o.s.a.d.n.t.z.ZAPIConnection 
     (ZAPIConnection.java:619) - [netappfoundation] 192.168.249.5 - while 
      executing ZAPIs on datasource: 192.168.249.5 IP: 192.168.249.5 for ZAPI: 
      storage-shelf-environment-list-info, java.io.EOFException: Encountered 
      EOF 
      at 69254/71486 bytes java.io.EOFException: Encountered EOF at 
      69254/71486 bytes
      at netapp.manage.http.HTTPMessage.readContents(Unknown Source) ~ 
      [manageontap.jar:?]
      at netapp.manage.http.HTTPResponse.read(Unknown Source) ~ 
      [manageontap.jar:?]

      WARN  [foundation-poll-0] c.o.s.a.d.n.t.z.ZAPIConnection 
      (ZAPIConnection.java:628) - [netappfoundation] 10.227.5.76 - while 
      executing ZAPIs on datasource: 10.227.5.76 IP: 10.227.5.76 for ZAPI: 
      snapmirror-history-get-iter, java.io.EOFException: Encountered EOF at 
      69254/70298 bytes java.io.EOFException: Encountered EOF at 
      69254/70298 bytes
      at netapp.manage.http.HTTPMessage.readContents(Unknown Source) ~ 
      [manageontap.jar:?]
      at netapp.manage.http.HTTPResponse.read(Unknown Source) ~ 
      [manageontap.jar:?]

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