'rabbitmqctl status' shows as 0 in the total number of file handles c…

[tomyouyou]

…olumn when there are connections

mgmt_db: 0.0 gb (0.0 %)

File Descriptors

Total: 0, limit: 65438

Free Disk Space

Low free disk space watermark: 1.0 gb
Free disk space: 49.202 gb

Totals

Connection count: 127
Queue count: 632
Virtual host count: 1

Listeners

Interface: [2001:123::2], port: 25672, protocol: clustering,

Proposed Changes

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• Bug fix (non-breaking change which fixes issue #NNNN)
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Further Comments

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[mkuratczyk]

Almost all components moved away from using the file_handle_cache (it will go away completely), so the value it returns will be very low or zero already, it definitely won't be the actual number of FDs in use by RabbitMQ. File descriptor usage can be monitored externally, on the operating-system level.

[michaelklishin]

Relevant doc guide: Infrastructure and Kernel Metrics.