The file table of the ramdisk 'var' is full. As a result, the file /var/XXXXXXXX could not be created by the application 'XXXXXXX'.

Products

• VMware vSphere ESXi
• VMware vSphere ESXi 8.0
• VMware vSphere ESXi 7.0

Issue/Introduction

• Tasks fail with an error

The file table of the ramdisk 'var' is full. As a result, the file /var/XXXXXXXX could not be created by the application 'XXXXXXX'.

• vm-support command fails to generate a log bundle.

Traceback (most recent call last):
  File "/bin/vm-support", line 21, in <module>
    logging.getLogger('').addHandler(getLogFileHandler(VMSLOGFILE, logging.INFO))
  File "/lib64/python3.8/site-packages/supportbundle/cli/utils.py", line 16, in getLogFileHandler
  File "/lib64/python3.8/logging/handlers.py", line 148, in __init__
  File "/lib64/python3.8/logging/handlers.py", line 55, in __init__
  File "/lib64/python3.8/logging/__init__.py", line 1143, in __init__
  File "/lib64/python3.8/logging/__init__.py", line 1172, in _open
OSError: [Errno 28] No space left on device: '/var/log/vmsupport.log'

• You see many .trp files under /var/spool/snmp direcotory even though SNMP is not enabled.
  
  
• vdu -a command shows /var/spool/snmp directory consumes a large number of inodes.

For '/var/spool/snmp':
                           ramdisk var:     30547968        ( 7459 inodes)

 

Note: The preceding log excerpts are only examples. Date,time and environmental variables may vary depending on your environment.

Cause

/var/spool/snmp directory is unexpectedly created on starting hostd and filled up with many .trp files. As snmpd is disabled, it is unable to process .trp files and because of that host is running out of i-nodes on /var partition.

Resolution

This issue is fixed in ESXi 7.0 Update 3o and 8.0 Update 1c.

As a workaround, remove /var/spool/snmp directory.

# rm -rf /var/spool/snmp

Additional Information

VMware ESXi 7.0 Update 3o Release Notes
VMware ESXi 8.0 Update 1c Release Notes

You see trap files in a SNMP directory under /var/spool even though SNMP is not enabled
After the hostd service starts, for example after an ESXi host reboot, it might create a SNMP directory under /var/spool and you see many .trp files to pile up in this directory.
This issue is resolved in this release. The fix makes sure that the directory /var/spool/snmp exists only when SNMP is enabled.