gluster snapshot status --xml doesn't work on v3.7.5

Hsiu-Chang Chen <syuusyou@xxxxxxxxx> · Tue, 3 Nov 2015 11:29:22 +0800

Hi, 

I have a volume created by 4 bricks and already took 2 snapshots. When I try to get snapshot status by 'gluster snapshot status --xml', it will return uncompleted output. Here are some examples:

Example 1: Print all snapshots' status

When I run 'gluster snapshot status', it returns:

Snap Name : snap1_GMT-2015.11.03-02.51.11
Snap UUID : 95dca986-7492-42f8-8a20-133e186dbdf7

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick1/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick2/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick3/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick4/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

Snap Name : snap2_GMT-2015.11.03-02.51.57
Snap UUID : 9b31a4fd-6e04-460d-9aaf-b16d1bfed8a2

        Brick Path        :   gfs-m1:/run/gluster/snaps/3aaf2d06b3034799bab05ba1f1479e9c/brick1/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/3aaf2d06b3034799bab05ba1f1479e9c/brick2/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/3aaf2d06b3034799bab05ba1f1479e9c/brick3/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/3aaf2d06b3034799bab05ba1f1479e9c/brick4/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

But when I run 'gluster snapshot status --xml' it returns

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<cliOutput>
  <opRet>0</opRet>
  <opErrno>0</opErrno>
  <opErrstr/>
  <snapStatus>
    <snapshots>
      <snapshot>
        <name>snap1_GMT-2015.11.03-02.51.11</name>
        <uuid>95dca986-7492-42f8-8a20-133e186dbdf7</uuid>
        <volCount>1</volCount>
        <volume>
          <brickCount>4</brickCount>
          <brick>
            <path>gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick1/fs</path>
            <volumeGroup>vg1</volumeGroup>
            <snapshot>
              <name>snap2_GMT-2015.11.03-02.51.57</name>
              <uuid>9b31a4fd-6e04-460d-9aaf-b16d1bfed8a2</uuid>
              <volCount>1</volCount>
              <volume>
                <brickCount>4</brickCount>
                <brick>
                  <path>gfs-m1:/run/gluster/snaps/3aaf2d06b3034799bab05ba1f1479e9c/brick1/fs</path>
                  <volumeGroup>vg1</volumeGroup>
                </brick>
              </volume>
            </snapshot>
          </brick>
        </volume>
      </snapshot>
    </snapshots>
  </snapStatus>
</cliOutput>
Example 2: Print specified snapshot's status
When I run 'gluster snapshot status snap1_GMT-2015.11.03-02.51.11', it returns 
Snap Name : snap1_GMT-2015.11.03-02.51.11
Snap UUID : 95dca986-7492-42f8-8a20-133e186dbdf7

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick1/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick2/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick3/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g

        Brick Path        :   gfs-m1:/run/gluster/snaps/dd45a201cd1c4788b05b57b5a652aeb8/brick4/fs
        Volume Group      :   vg1
        Brick Running     :   No
        Brick PID         :   N/A
        Data Percentage   :   0.31
        LV Size           :   100.00g
But when I run 'gluster snapshot status snap1_GMT-2015.11.03-02.51.11 --xml', it doesn't returns anything.

Regards, 
Hsiu-Chang Chen
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