小编Man*_*r G的帖子

我正在尝试使用以下代码在 Altair 中绘制图表。

tot_matches_played = alt.Chart(mpt).mark_bar().encode(
  alt.X('Team',axis=alt.Axis(title='Teams Played in IPL'), sort=alt.EncodingSortField(field='Number_of_matches_played:Q', op='count', order='ascending')),  
  alt.Y('Number_of_matches_played:Q' ),
  tooltip=['sum(Number_of_matches_played)']
)

但由于工具提示名称很奇怪，我想使用“as”在图表上重命名它，如下所示。

tot_matches_played = alt.Chart(mpt).mark_bar().encode(
  alt.X('Team',axis=alt.Axis(title='Teams Played in IPL'), sort=alt.EncodingSortField(field='Number_of_matches_played:Q', op='count', order='ascending')),  
  alt.Y('Number_of_matches_played:Q' ),
  tooltip=['sum(Number_of_matches_played)' as total_matches]
)

如何重命名工具提示，使其以更易读的方式显示给查看图表的用户。

我有一个11个节点的集群,9个是奴隶,2个是主人,与我之前的问题相同.我正在该集群上执行TestDFSIO基准测试,该集群使用CDH 5.8.0.

我从TestDFSIO结果得到以下输出.这是吞吐量吗？或者我是否需要从中计算吞吐量,例如文件数量乘以TestDFSIO结果通过其他方式？

请告诉我如何获得整个群集的吞吐量.

----- TestDFSIO ----- : write
           Date & time: Mon Aug 29 07:28:01 MDT 2016
       Number of files: 10000
Total MBytes processed: 8000000.0
     Throughput mb/sec: 50.75090177850001
Average IO rate mb/sec: 85.83160400390625
 IO rate std deviation: 82.41435666074283
    Test exec time sec: 3149.755

我有一个下面给出的json文件,我想通过使用jsonserde创建外部表来使用hive访问它.

{"ResponseCode":"1","响应":"找到的数据","数据":[{"季节":"RABI","扇区":"HORTICULTURE","类别":"水果","裁剪" ":"Mango","QueryType":"文化习俗","QueryText":"如何控制芒果花落？","KCCAns":"推荐用于喷洒到planofix 5-7 mili/pump","StateName" ":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName":"BALAYAPALLE","SubmitDate":"11/1/2016 9:05:27 AM"},{"Season":"RABI" ,"部门":"农业","类别":"其他","作物":"其他","查询类型":"杂草管理","查询文本":"桉树中的杂草管理","KCCAns":"建议喷洒GLYPOSATE @ 2 LITERS PER ACRE","StateName":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName":"MARRIPADU","SubmitDate":"2016/1/11 9:07: 04 AM"},{"Season":"RABI","Sector":"HORTICULTURE","Category":"Vegetables","Crop":"Bhindi(Okra/Ladysfinger)","QueryType":"\ tPlant保护\ t","QueryText":"OKRA MITE DAMAGE","KCCAns":"建议喷洒DICOFOL 1 LITER/200 LATERERS OF WATER/ACRE","StateName":"ANDHRA PRADESH","DistrictNam e":"NELLORE","BlockName":"KOVUR","SubmitDate":"11/1/2016 3:11:59 PM"},{"季节":"RABI","部门":"农业" ,"类别":"谷物","作物":"稻田(Dhan)","QueryType":"杂草管理","QueryText":"15-20天作物的稻田杂草管理","KCCAns":"建议喷洒CYHALOPOP-P-BUTYL 250 ML PER ACRE","StateName":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName":"BALAYAPALLE","SubmitDate":"2016年11月3日2 :11:17 PM"},{"季节":"KHARIF","扇区":"农业","类别":"其他","作物":"其他","查询类型":"天气"," QueryText":"天气报告","KCCAns":"天气报告联系18004253141,08912543031","StateName":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName":"KALIGIRI","SubmitDate": "11/3/2016 5:22:22 PM"},{"季节":"RABI","扇区":"农业","类别":"豆类","作物":"木豆(红豆)/arhar/tur)","QueryType":"营养素管理","查询文字":"红色食物营养管理","KCCAns":"建议每次喷洒13-045一公斤","州名":"ANDHRA邦 "" DistrictNa 我":"NELLORE","BlockName":"ANUMASAMUDRAMPETA","SubmitDate":"2016年11月3日下午7:25:10"},{"季节":"RABI","部门":"农业" ,"类别":"豆类","作物":"木豆(红克/ arhar/tur)","QueryType":"营养素管理","QueryText":"红色食物营养管理","KCCAns": "推荐喷涂13-0-45 ONE KG/ACRE","StateName":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName":"ANUMASAMUDRAMPETA","SubmitDate":"2016/11/3 7:30:02 PM"},{"Season":"RABI","Sector":"HORTICULTURE","Category":"Fruits","Crop":"Citrus","QueryType":"\ tPlant Protection\t","QueryText":"CITRUS SUCKING PEST","KCCAns":"推荐用于DIMETHOATE 400 ML/ACRE 200 LITER WATER","StateName":"ANDHRA PRADESH","DistrictName":"NELLORE","BlockName" ":"KODAVALUR","SubmitDate":"11/4/2016 8:48:03 AM"},{"Season":"RABI","Sector":"HORTICULTURE","Category":"Fruits", "Crop":"Citrus","QueryType":"\ tPlant Protection\t","QueryText":"CITRUS SUCKING PEST","KCCAns":"推荐用于DIMETHOATE 400 ML/ACRE 200 LITER WATER","StateName" :"ANDHR …