spark查看DF的partition数目及每个partition中的数据量【集群模式】

     println("--------------------"+data.rdd.getNumPartitions) // 获取DF中partition的数目

     val partitions = data.rdd.glom().collect() // 获取所有data下所有的partition，返回一个partition的集合

     for(part <- partitions){

       println(part.getClass.getName + "::::::::" + part.length) // 每个partition中的数据量

     }

结果：

--------------------100

[Lorg.apache.spark.sql.Row;::::::::61516

[Lorg.apache.spark.sql.Row;::::::::61656

[Lorg.apache.spark.sql.Row;::::::::61991

[Lorg.apache.spark.sql.Row;::::::::61269

[Lorg.apache.spark.sql.Row;::::::::61654

[Lorg.apache.spark.sql.Row;::::::::61780

[Lorg.apache.spark.sql.Row;::::::::62059

[Lorg.apache.spark.sql.Row;::::::::61675

[Lorg.apache.spark.sql.Row;::::::::61339

[Lorg.apache.spark.sql.Row;::::::::61783

[Lorg.apache.spark.sql.Row;::::::::61620

[Lorg.apache.spark.sql.Row;::::::::61883

[Lorg.apache.spark.sql.Row;::::::::61631

[Lorg.apache.spark.sql.Row;::::::::61930

[Lorg.apache.spark.sql.Row;::::::::61451

[Lorg.apache.spark.sql.Row;::::::::61797

[Lorg.apache.spark.sql.Row;::::::::61367

[Lorg.apache.spark.sql.Row;::::::::61647

[Lorg.apache.spark.sql.Row;::::::::61488

[Lorg.apache.spark.sql.Row;::::::::61584

[Lorg.apache.spark.sql.Row;::::::::61733

[Lorg.apache.spark.sql.Row;::::::::61491

[Lorg.apache.spark.sql.Row;::::::::61809

[Lorg.apache.spark.sql.Row;::::::::61062

[Lorg.apache.spark.sql.Row;::::::::61658

[Lorg.apache.spark.sql.Row;::::::::61599

[Lorg.apache.spark.sql.Row;::::::::61911

[Lorg.apache.spark.sql.Row;::::::::61602

[Lorg.apache.spark.sql.Row;::::::::61348

[Lorg.apache.spark.sql.Row;::::::::61677

[Lorg.apache.spark.sql.Row;::::::::61722

[Lorg.apache.spark.sql.Row;::::::::61482

[Lorg.apache.spark.sql.Row;::::::::61714

[Lorg.apache.spark.sql.Row;::::::::61241

[Lorg.apache.spark.sql.Row;::::::::61737

[Lorg.apache.spark.sql.Row;::::::::62015

[Lorg.apache.spark.sql.Row;::::::::62062

[Lorg.apache.spark.sql.Row;::::::::61557

[Lorg.apache.spark.sql.Row;::::::::61607

[Lorg.apache.spark.sql.Row;::::::::61175

[Lorg.apache.spark.sql.Row;::::::::61653

[Lorg.apache.spark.sql.Row;::::::::61460

[Lorg.apache.spark.sql.Row;::::::::61705

[Lorg.apache.spark.sql.Row;::::::::61492

[Lorg.apache.spark.sql.Row;::::::::61340

[Lorg.apache.spark.sql.Row;::::::::61767

[Lorg.apache.spark.sql.Row;::::::::61756

[Lorg.apache.spark.sql.Row;::::::::61793

[Lorg.apache.spark.sql.Row;::::::::61417

[Lorg.apache.spark.sql.Row;::::::::61376

[Lorg.apache.spark.sql.Row;::::::::62039

[Lorg.apache.spark.sql.Row;::::::::61571

[Lorg.apache.spark.sql.Row;::::::::61849

[Lorg.apache.spark.sql.Row;::::::::61553

[Lorg.apache.spark.sql.Row;::::::::61612

[Lorg.apache.spark.sql.Row;::::::::61980

[Lorg.apache.spark.sql.Row;::::::::61714

[Lorg.apache.spark.sql.Row;::::::::62376

[Lorg.apache.spark.sql.Row;::::::::61884

[Lorg.apache.spark.sql.Row;::::::::61273

[Lorg.apache.spark.sql.Row;::::::::61669

[Lorg.apache.spark.sql.Row;::::::::61695

[Lorg.apache.spark.sql.Row;::::::::61515

[Lorg.apache.spark.sql.Row;::::::::61247

[Lorg.apache.spark.sql.Row;::::::::61909

[Lorg.apache.spark.sql.Row;::::::::61879

[Lorg.apache.spark.sql.Row;::::::::61913

[Lorg.apache.spark.sql.Row;::::::::61199

[Lorg.apache.spark.sql.Row;::::::::61678

[Lorg.apache.spark.sql.Row;::::::::61619

[Lorg.apache.spark.sql.Row;::::::::61909

[Lorg.apache.spark.sql.Row;::::::::61406

[Lorg.apache.spark.sql.Row;::::::::61775

[Lorg.apache.spark.sql.Row;::::::::61559

[Lorg.apache.spark.sql.Row;::::::::61773

[Lorg.apache.spark.sql.Row;::::::::61888

[Lorg.apache.spark.sql.Row;::::::::61634

[Lorg.apache.spark.sql.Row;::::::::61786

[Lorg.apache.spark.sql.Row;::::::::61666

[Lorg.apache.spark.sql.Row;::::::::61519

[Lorg.apache.spark.sql.Row;::::::::61563

[Lorg.apache.spark.sql.Row;::::::::61481

[Lorg.apache.spark.sql.Row;::::::::61295

[Lorg.apache.spark.sql.Row;::::::::61343

[Lorg.apache.spark.sql.Row;::::::::61750

[Lorg.apache.spark.sql.Row;::::::::61328

[Lorg.apache.spark.sql.Row;::::::::61650

[Lorg.apache.spark.sql.Row;::::::::61541

[Lorg.apache.spark.sql.Row;::::::::61397

[Lorg.apache.spark.sql.Row;::::::::61505

[Lorg.apache.spark.sql.Row;::::::::61761

[Lorg.apache.spark.sql.Row;::::::::61795

[Lorg.apache.spark.sql.Row;::::::::62291

[Lorg.apache.spark.sql.Row;::::::::61566

[Lorg.apache.spark.sql.Row;::::::::61213

[Lorg.apache.spark.sql.Row;::::::::62028

[Lorg.apache.spark.sql.Row;::::::::62634

[Lorg.apache.spark.sql.Row;::::::::61838

[Lorg.apache.spark.sql.Row;::::::::61243

[Lorg.apache.spark.sql.Row;::::::::61585

样例：

--------------------100

[Lorg.apache.spark.sql.Row;::::::::61516

[Lorg.apache.spark.sql.Row;::::::::61656

[Lorg.apache.spark.sql.Row;::::::::61991

[Lorg.apache.spark.sql.Row;::::::::61269

[Lorg.apache.spark.sql.Row;::::::::61654

[Lorg.apache.spark.sql.Row;::::::::61780

巴特西

spark查看DF的partition数目及每个partition中的数据量【集群模式】

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