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node-status outputs volumename instead of 0B utilization when non-physical volume is used #1538

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merged 1 commit into from
Aug 10, 2016
Merged

node-status outputs volumename instead of 0B utilization when non-physical volume is used #1538

merged 1 commit into from
Aug 10, 2016

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nak3
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@nak3 nak3 commented Aug 7, 2016

Issue

nomad node-status outputs Disk 0 B/0 B.

$ nomad node-status 11f9838e
  ...
Host Resource Utilization
CPU        Memory          Disk
1122/7396  4.1 GiB/15 GiB  0 B/0 B

This is one of the issues reported in #1374.

Root cause

nomad client collects disk data from physical partitions only. So, tmpfs is not collected. Ref -
disk.Partitions(false) and shirou/gopsutil's code

Change

This PR changes nomad to output only volume name instead of 0 B when non-physical volume is used.

(e.g)

$ nomad node-status 11f9838e
  ...
Host Resource Utilization
CPU         Memory          Disk
1153/13056  4.0 GiB/15 GiB  (tmpfs)

@nak3 nak3 changed the title node-status stops showing volumename instead of 0B utilization when non-physical volume is used node-status outputs volumename instead of 0B utilization when non-physical volume is used Aug 7, 2016
@@ -53,6 +53,8 @@ func (f *StorageFingerprint) Fingerprint(cfg *config.Config, node *structs.Node)
node.Attributes["unique.storage.bytestotal"] = strconv.FormatUint(total, 10)
node.Attributes["unique.storage.bytesfree"] = strconv.FormatUint(free, 10)

f.logger.Printf("[DEBUG] fingerprint.storage: volume: %s, total: %d Byte, free: %d Byte", volume, total, free)
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Since the node attributes can be queried from the cli and api, we don't need a debug message here.

@dadgar
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dadgar commented Aug 8, 2016

Nice this is cool!

@nak3
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nak3 commented Aug 8, 2016

Thank you! I updated by deleting the debug message.

@diptanu diptanu merged commit d8dd52c into hashicorp:master Aug 10, 2016
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3 participants