“PPMD_READ_ERROR” log is output continuously on firewall vSRX 20.4R2
When the NFS that mounts the OS area of vSRX becomes unstable temporarily, the following log may be output. Normally, log output will stop when the NFS status is restored, but in rare cases, logs will continue to be output even after the NFS has recovered from an unstable state.
rpd: RPD_PPM_READ_ERROR: Read error on pipe from ppmd: premature EOF (connection closed)
ppmd: PPMD_READ_ERROR: Read error on pipe from RPD_RT: premature EOF (connection closed)
Regardless of whether or not this issue occurs, vSRX operation may become temporarily unstable if NFS becomes unstable.
Log output will stop when you restart.
Also, if you want to stop the log output without restarting, you can suppress the output by filtering with the following settings.
<Setting to suppress output to file>
set system syslog file messages match "! (PPMD_READ_ERROR: Read error on pipe | RPD_PPM_READ_ERROR: Read error on pipe)"
<Settings to suppress syslog forwarding>
set system syslog host <forwarding IP address> match "! (PPMD_READ_ERROR: Read error on pipe | RPD_PPM_READ_ERROR: Read error on pipe)"