Oozie Sub workflow作业 使用Hue提交Oozie Shell作业 使用Hue提交Oozie HDFS作业 使用Hue提交Oozie Streaming作业 使用Hue提交Oozie Distcp作业 使用Hue提交Oozie SSH作业 使用Hue提交Coordinator
示例 预处理查询 PREPARE my_select1 FROM SELECT * FROM fruit; 预处理一个包含参数的查询,在EXECUTE语句中,与regionkey和nationkey比较的值会被替换 PREPARE my_select2 FROM SELECT name
Oozie Sub workflow作业 使用Hue提交Oozie Shell作业 使用Hue提交Oozie HDFS作业 使用Hue提交Oozie Streaming作业 使用Hue提交Oozie Distcp作业 使用Hue提交Oozie SSH作业 使用Hue提交Coordinator
任务文件“coordinator.xml”。
create table src_data1 (line string) row format delimited fields terminated by ',' ; load data inpath '/user/omm/userinput/sparksql-test.txt'
=0, SizeOfHFileRefsQueue=0, AgeOfLastShippedOp=0, TimeStampsOfLastShippedOp=Wed May 25 20:44:42 CST 2016, Replication Lag=0 FailedReplicationAttempts
=0, SizeOfHFileRefsQueue=0, AgeOfLastShippedOp=0, TimeStampsOfLastShippedOp=Wed May 25 20:44:42 CST 2016, Replication Lag=0 FailedReplicationAttempts
=0, SizeOfHFileRefsQueue=0, AgeOfLastShippedOp=0, TimeStampsOfLastShippedOp=Wed May 25 20:44:42 CST 2016, Replication Lag=0 FailedReplicationAttempts
=0, SizeOfHFileRefsQueue=0, AgeOfLastShippedOp=0, TimeStampsOfLastShippedOp=Wed May 25 20:44:42 CST 2016, Replication Lag=0 FailedReplicationAttempts
上述压缩算法除LZC外,皆支持Native(基于C语言实现)实现,压缩和解压缩效率较高。建议根据业务场景优先选用具备Native实现的压缩算法。 约束与限制 本章节适用于MRS 3.x及后续版本。 LZC压缩格式不支持FSImage和SequenceFile压缩。
示例 创建基础表order01和order02 CREATE TABLE order01(id int,name string,tel string) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t' LINES TERMINATED BY
coordinator_read_executor_size IoTDBServer 20 自定义参数(engine.customized.configs),设置IoTDBServer Coordinator的读线程核心个数。
上述压缩算法除LZC外,皆支持Native(基于C语言实现)实现,压缩和解压缩效率较高。建议根据业务场景优先选用具备Native实现的压缩算法。 约束与限制 本章节适用于MRS 3.x及后续版本。 LZC压缩格式不支持FSImage和SequenceFile压缩。
n join supplier s on s.s_nationkey = n.n_nationkey and n.n_name = 'SAUDI ARABIA' join lineitem l on s.s_suppkey = l.l_suppkey where l.l_receiptdate
n join supplier s on s.s_nationkey = n.n_nationkey and n.n_name = 'SAUDI ARABIA' join lineitem l on s.s_suppkey = l.l_suppkey where l.l_receiptdate
=5 找到“FailedReplicationAttempts”的值大于0的记录所对应的“PeerID”值。
Put file is running... 5930 [main] WARN org.apache.hadoop.util.NativeCodeLoader - Unable to load native-hadoop library for your platform...
foo"), Bytes.toBytes("bar")) put } else { null } }) ssc.start() ssc.awaitTerminationOrTimeout
four score and seven years ago", "snow white and the seven dwarfs", "i am at two with nature
four score and seven years ago", "snow white and the seven dwarfs", "i am at two with nature