Grafana receiving zero not actual value from OpenTSDB

The OpenTSDB query in Grafana returns all zeros:
xhrStatus:“complete”
request:Object
method:“POST”
url:“api/datasources/proxy/1/api/query”
data:Object
start:1495378541688
queries:Array[1]
0:Object
metric:“percent_stor_vend_cap_tier_loc_overalloc”
aggregator:“sum”
downsample:“1d-last”
tags:Object
storage_location:“sea1”
storage_vendor:“pure”
msResolution:false
globalAnnotations:true
showQuery:true
end:1526828141688
response:Array[1]
0:Object
metric:“percent_stor_vend_cap_tier_loc_overalloc”
tags:Object
host:“den3l1eanoh101.davita.corp”
storage_tier:“1”
storage_location:“sea1”
storage_vendor:“pure”
aggregateTags:Array[0]
query:Object
aggregator:“sum”
metric:“percent_stor_vend_cap_tier_loc_overalloc”
tsuids:null
downsample:“1d-last”
rate:false
filters:Array[2]
0:Object
tagk:“storage_location”
filter:“sea1”
group_by:true
type:“literal_or”
1:Object
tagk:“storage_vendor”
filter:“pure”
group_by:true
type:“literal_or”
index:0
rateOptions:null
filterTagKs:Array[2]
0:“AAAD”
1:“AAAJ”
explicitTags:false
tags:Object
storage_vendor:“literal_or(pure)”
storage_location:“literal_or(sea1)”
dps:Object
1495411200:0
1495497600:0
1495584000:0
1495670400:0
1495756800:0
1495843200:0
1495929600:0
1496016000:0
1496102400:0
1496188800:0
1496275200:0
1496361600:0
1496448000:0
1496534400:0
1496620800:0
1496707200:0
1496793600:0
1496880000:0
1496966400:0
1497052800:100:
However OpenTSDB scan from command line returns real values:
[0, 0, 82, 92, -41, 98, 0, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1557619200 (Sat May 11 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -40, -77, -128, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1557705600 (Sun May 12 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -38, 5, 0, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1557792000 (Mon May 13 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -37, 86, -128, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1557878400 (Tue May 14 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -36, -88, 0, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1557964800 (Wed May 15 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -35, -7, -128, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1558051200 (Thu May 16 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -33, 75, 0, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1558137600 (Fri May 17 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}
[0, 0, 82, 92, -32, -100, -128, 0, 0, 1, 0, 0, 1, 0, 0, 3, 0, 0, 7, 0, 0, 4, 0, 0, 5, 0, 0, 9, 0, 2, 13] percent_stor_vend_cap_tier_loc_overalloc 1558224000 (Sat May 18 18:00:00 MDT 2019) {host=den3l1eanoh101.davita.corp, storage_tier=1, storage_location=sea1, storage_vendor=pure}

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