Fpolicy EAGAIN errors seen in fpolicy.log in ONTAP

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• Fpolicy logs report errors pertaining to EAGAIN errors similar to the following:

[kern_fpolicy:error:1552] Write returned EAGAIN[35] [0x0x80c408d00] src/fsm/fsm_external_engine.cc:864
[kern_fpolicy:error:4321] Read returned EAGAIN[35] [0x0x809005a40] fpolicy/fsm/fsm_external_engine.cc:732  

• event log show gives an output similar to below:

[filer1: fpolicy: fpolicy.eagain.on.write:notice]: Write returned EAGAIN while sending notification to the FPolicy server "12.34.56.78" for vserver ID 3.

• Problematic operations will report errors for code 316 (which translates to SPINNP_ERR_FPOLICY_REQD) in SPINHI-STATS, for example:

Unlink: count=17242157 hipri=0 errs=5658866 elapsed: max=5900260.57 avg=300.16
		spinhi cpu: max=930.18 avg=13.53
		wafl cpu: max=5900190.78 avg=258.46 restarts=125102
		errs: 13[18142] 66[552] 298[3] 316[5640169]

• Packet traces may show NFS3ERR_SERVERFAULT as a reply to a failed operation:

• Latency may show higher in Network Processing in Unified Manager