cloudera-cdh

问题 I would like my map and reduce tasks to run in parallel. However, despite trying every trick in the bag, they are still running sequentially. I read from How to set the precise max number of concurrently running tasks per node in Hadoop 2.4.0 on Elastic MapReduce, that using the following formula, one can set the number of tasks running in parallel. min (yarn.nodemanager.resource.memory-mb / mapreduce.[map|reduce].memory.mb, yarn.nodemanager.resource.cpu-vcores / mapreduce.[map|reduce].cpu

问题 I am working with Impala and fetching the list of tables from the database with some pattern like below. Assume i have a Database bank , and tables under this database are like below. cust_profile cust_quarter1_transaction cust_quarter2_transaction product_cust_xyz .... .... etc Now i am filtering like show tables in bank like '*cust*' It is returning the expected results like, which are the tables has a word cust in its name. Now my requirement is i want all the tables which will have cust

问题 I have a Scala Implicit class from RecordService API, which i wanted to use in Java file. package object spark { implicit class RecordServiceContext(ctx: SparkContext) { def recordServiceTextFile(path: String) : RDD[String] = { new RecordServiceRDD(ctx).setPath(path) .map(v => v(0).asInstanceOf[Text].toString) } } } Now i am trying to import this in a Java file using below import. import com.cloudera.recordservice.spark.*; But i am not able to use recordServiceTextFile("path") from

来源： https://stackoverflow.com/questions/40223422/hbase-master-wont-start

来源： https://stackoverflow.com/questions/40223422/hbase-master-wont-start

来源： https://stackoverflow.com/questions/40223422/hbase-master-wont-start

问题 I am trying to open a hdfs file that is present on cdh4 cluster from cdh5 machine using webhdfs from the command line as below: curl -i -L "http://namenodeIpofCDH4:50070/webhdfs/v1/user/quad/source/JSONML.java?user.name=quad&op=OPEN" I am getting "File Not Found Exception" even if the file JSONML.java is present in the mentioned path in namenode as well as datanode and its trace is as follows: HTTP/1.1 307 TEMPORARY_REDIRECT Cache-Control: no-cache Expires: Thu, 01-Jan-1970 00:00:00 GMT Date:

问题 I am trying to open a hdfs file that is present on cdh4 cluster from cdh5 machine using webhdfs from the command line as below: curl -i -L "http://namenodeIpofCDH4:50070/webhdfs/v1/user/quad/source/JSONML.java?user.name=quad&op=OPEN" I am getting "File Not Found Exception" even if the file JSONML.java is present in the mentioned path in namenode as well as datanode and its trace is as follows: HTTP/1.1 307 TEMPORARY_REDIRECT Cache-Control: no-cache Expires: Thu, 01-Jan-1970 00:00:00 GMT Date:

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 days ago . Improve this question As Cloudera official blog said, there is no free version of CDH from 6.3.3, they would make the Cloudera Manager to open source, but not yet. Is there any other project like Cloudera Manager? which can manage Hadoop components by Web UI, especially belongs to

问题 We facing some issue in beeline while we connecting via beeline to hbase table. We have two hiveserver2, one of the node we got this error like: INFO : Query ID = hive_20190719154444_babd2ce5-4d41-400b-9be5-313acaffc9bf INFO : Total jobs = 1 INFO : Launching Job 1 out of 1 INFO : Starting task [Stage-0:MAPRED] in serial mode INFO : Number of reduce tasks is set to 0 since there's no reduce operator ERROR : FAILED: Execution Error, return code -101 from org.apache.hadoop.hive.ql.exec.mr