hbase

Joining Two Datasets with Predicate Pushdown

China☆狼群 提交于 2020-08-25 04:04:09
问题 I have a Dataset that i created from a RDD and try to join it with another Dataset which is created from my Phoenix Table : val dfToJoin = sparkSession.createDataset(rddToJoin) val tableDf = sparkSession .read .option("table", "table") .option("zkURL", "localhost") .format("org.apache.phoenix.spark") .load() val joinedDf = dfToJoin.join(tableDf, "columnToJoinOn") When i execute it, it seems that the whole database table is loaded to do the join. Is there a way to do such a join so that the

Joining Two Datasets with Predicate Pushdown

浪子不回头ぞ 提交于 2020-08-25 04:03:06
问题 I have a Dataset that i created from a RDD and try to join it with another Dataset which is created from my Phoenix Table : val dfToJoin = sparkSession.createDataset(rddToJoin) val tableDf = sparkSession .read .option("table", "table") .option("zkURL", "localhost") .format("org.apache.phoenix.spark") .load() val joinedDf = dfToJoin.join(tableDf, "columnToJoinOn") When i execute it, it seems that the whole database table is loaded to do the join. Is there a way to do such a join so that the

Joining Two Datasets with Predicate Pushdown

丶灬走出姿态 提交于 2020-08-25 04:02:24
问题 I have a Dataset that i created from a RDD and try to join it with another Dataset which is created from my Phoenix Table : val dfToJoin = sparkSession.createDataset(rddToJoin) val tableDf = sparkSession .read .option("table", "table") .option("zkURL", "localhost") .format("org.apache.phoenix.spark") .load() val joinedDf = dfToJoin.join(tableDf, "columnToJoinOn") When i execute it, it seems that the whole database table is loaded to do the join. Is there a way to do such a join so that the

HBase Error IllegalStateException when starting Master: hsync

守給你的承諾、 提交于 2020-08-05 19:21:00
问题 I'm trying to install HBase on a hadoop cluster and can't figure out why the HMaster fails to initiate when called from start-hbase.sh. The log files indicate an issue with hsync. I have confirmed that zookeeper is running correctly in distributed mode,and I have not had any issues working with the hadoop cluster through spark. When attempting to start HBase the region servers start on all data nodes. I have hadoop version 3.0.0, zookeeper 3.4.11 and hbase 2.0.0 beta 1. I have cleared out the

HBase Error IllegalStateException when starting Master: hsync

痞子三分冷 提交于 2020-08-05 19:20:53
问题 I'm trying to install HBase on a hadoop cluster and can't figure out why the HMaster fails to initiate when called from start-hbase.sh. The log files indicate an issue with hsync. I have confirmed that zookeeper is running correctly in distributed mode,and I have not had any issues working with the hadoop cluster through spark. When attempting to start HBase the region servers start on all data nodes. I have hadoop version 3.0.0, zookeeper 3.4.11 and hbase 2.0.0 beta 1. I have cleared out the