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KTLS failed and object store unavailable messages

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fsx-ontap
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Applies to

  • Amazon FSx for NetApp ONTAP
  • ONTAP S3
  • ONTAP 9.13.1 onwards

Issue

  • Unable to upload files in S3 bucket
  • Reading and Writing Image both throw error "HTTP/1.1 501 Not Implemented"
  • You see the following messages occurring regularly in EMS:
 
Fri Jan 05 00:23:45 +0000 [FsxId0000000-02: kernel: ems.engine.suppressed:debug]: Event 'ktls.cnxnHandshakeLimit' suppressed 10939 times in last 61 seconds.
Fri Jan 05 00:23:45 +0000 [FsxId0000000-02: kernel: ktls.cnxnHandshakeLimit:notice]: ONTAP reached the maximum limit of 170 concurrent TLS connection handshakes. If this limit is reached, subsequent TLS connections will fail.
  • These can be accompanied by the following:
Fri Jan 05 00:25:25 +0000 [FsxId0000000-02: OscLowPriThreadPool: object.store.unavailable:EMERGENCY]: Unable to connect to the object store "FSxFabricpoolObjectStore" from node 1234-1234-1234-1234-1234. Reason: Connection unavailable.
Fri Jan 05 00:25:26 +0000 [FsxId0000000-02: OscLowPriThreadPool: object.store.available:notice]: Able to connect to the object store "FSxFabricpoolObjectStore" from node 1234-1234-1234-1234-1234.

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