missing gluster_node_* metrics

[mozai]

Using release v0.2.5 (can't build from source, see my other bug report) and glusterfs 9.2

Readme.md says it will acquire node information via gluster volume status all detail --xml. I can launch this and I can see per-node metrics such as sizeTotal, sizeFree, inodesTotal, inodesFree. But when I launch the exporter and ask for /metrics, I do not see any mention of gluster_node_size_bytes_total, gluster_node_size_free_bytes, gluster_node_size_free_bytes, gluster_node_inodes_free

I launched with -log.level debug and there are no error messages... no message at all actually, after reporting it started and "GlusterFS Metrics Exporter v0.2.5", not even saying it received a request.

Output of gluster volume status all detail --xml

<cliOutput>
  <opRet>0</opRet>
  <opErrno>0</opErrno>
  <opErrstr/>
  <volStatus>
    <volumes>
      <volume>
        <volName>gameserver</volName>
        <nodeCount>2</nodeCount>
        <node>
          <hostname>[redacted-1]</hostname>
          <path>/opt/data/gluster/gameserver</path>
          <peerid>fb8dee35-0ea1-4d79-b733-e6edfb9f6b71</peerid>
          <status>1</status>
          <port>49154</port>
          <ports>
            <tcp>49154</tcp>
            <rdma>N/A</rdma>
          </ports>
          <pid>2468110</pid>
          <sizeTotal>3541511364608</sizeTotal>
          <sizeFree>2442654326784</sizeFree>
          <device>/dev/mapper/vol2-gluster</device>
          <blockSize>4096</blockSize>
          <mntOptions>rw,noexec,noatime,nodiratime</mntOptions>
          <fsName>ext4</fsName>
          <inodeSize>ext4</inodeSize>
          <inodesTotal>219611136</inodesTotal>
          <inodesFree>216624397</inodesFree>
        </node>
        <node>
          <hostname>[redacted-2]</hostname>
          <path>/opt/data/gluster/gameserver</path>
          <peerid>f938331e-e057-4cf7-a63a-b2121c3f87ba</peerid>
          <status>0</status>
          <port>N/A</port>
          <ports>
            <tcp>N/A</tcp>
            <rdma>N/A</rdma>
          </ports>
          <pid>-1</pid>
          <sizeTotal>3540553007104</sizeTotal>
          <sizeFree>2437145952256</sizeFree>
          <device>/dev/mapper/vol2-gluster</device>
          <blockSize>4096</blockSize>
          <mntOptions>rw,noexec,noatime,nodiratime</mntOptions>
          <fsName>ext4</fsName>
          <inodeSize>ext4</inodeSize>
          <inodesTotal>219611136</inodesTotal>
          <inodesFree>216624417</inodesFree>
        </node>
      </volume>
      <volume>
        <volName>iris</volName>
        <nodeCount>2</nodeCount>
        <node>
          <hostname>[redacted-1]</hostname>
          <path>/opt/data/gluster/iris</path>
          <peerid>fb8dee35-0ea1-4d79-b733-e6edfb9f6b71</peerid>
          <status>1</status>
          <port>49155</port>
          <ports>
            <tcp>49155</tcp>
            <rdma>N/A</rdma>
          </ports>
          <pid>2468118</pid>
          <sizeTotal>3541511364608</sizeTotal>
          <sizeFree>2442654326784</sizeFree>
          <device>/dev/mapper/vol2-gluster</device>
          <blockSize>4096</blockSize>
          <mntOptions>rw,noexec,noatime,nodiratime</mntOptions>
          <fsName>ext4</fsName>
          <inodeSize>ext4</inodeSize>
          <inodesTotal>219611136</inodesTotal>
          <inodesFree>216624397</inodesFree>
        </node>
        <node>
          <hostname>[redacted-2]</hostname>
          <path>/opt/data/gluster/iris</path>
          <peerid>f938331e-e057-4cf7-a63a-b2121c3f87ba</peerid>
          <status>0</status>
          <port>N/A</port>
          <ports>
            <tcp>N/A</tcp>
            <rdma>N/A</rdma>
          </ports>
          <pid>-1</pid>
          <sizeTotal>3540553007104</sizeTotal>
          <sizeFree>2437145952256</sizeFree>
          <device>/dev/mapper/vol2-gluster</device>
          <blockSize>4096</blockSize>
          <mntOptions>rw,noexec,noatime,nodiratime</mntOptions>
          <fsName>ext4</fsName>
          <inodeSize>ext4</inodeSize>
          <inodesTotal>219611136</inodesTotal>
          <inodesFree>216624417</inodesFree>
        </node>
      </volume>
    </volumes>
  </volStatus>
</cliOutput>

Output of curl -s http://localhost:9189/metrics |grep gluster_

# HELP gluster_brick_count Number of bricks at last query.
# TYPE gluster_brick_count gauge
gluster_brick_count{volume="gameserver"} 2
gluster_brick_count{volume="iris"} 2
# HELP gluster_exporter_build_info A metric with a constant '1' value labeled by version, revision, branch, and goversion from which gluster_exporter was built.
# TYPE gluster_exporter_build_info gauge
gluster_exporter_build_info{branch="master",goversion="go1.7.4",revision="0e16052c6a0399880d6c74ba5b94fe1ade283615",version="0.2.5"} 1
# HELP gluster_peers_connected Is peer connected to gluster cluster.
# TYPE gluster_peers_connected gauge
gluster_peers_connected 1
# HELP gluster_up Was the last query of Gluster successful.
# TYPE gluster_up gauge
gluster_up 1
# HELP gluster_volume_status Status code of requested volume.
# TYPE gluster_volume_status gauge
gluster_volume_status{volume="gameserver"} 1
gluster_volume_status{volume="iris"} 1
# HELP gluster_volumes_count How many volumes were up at the last query.
# TYPE gluster_volumes_count gauge
gluster_volumes_count 2