hive> select product_id, track_time from trackinfo limit 5; Total MapReduce jobs = 1 Launching Job 1 out of 1 Number ...
以上述sql创建表json nested test后,查询时发现报错:Failed with exception java.io.IOException:org.apache.hadoop.hive.serde .SerDeException: java.io.IOException: Start of Array expected 于是进行如下测试,发现是org.apache.hive.hca ...
2017-05-28 18:49 0 3222 推荐指数:
hive> select product_id, track_time from trackinfo limit 5; Total MapReduce jobs = 1 Launching Job 1 out of 1 Number ...
昨晚突然之间mr跑步起来了 jps查看 进程都在的,但是在reduce任务跑了85%的时候会抛异常 异常情况如下: 2016-09-21 21:32:28,538 INFO [org.apache.hadoop.mapreduce.Job] - map 100% reduce 84 ...
sqoop从mysql导入到hive报错: 原因:缺少了hive-common-2.3.3.jar包,在hive的lib目录下,拷贝到sqoop的lib目录下即可。 ...
解决 在 /opt/cloudera/parcels/CDH/lib/hive/lib路径下找到hive-contrib-2.1.1-cdh6.0.0.jar包,上传到HDFS,添加即可add jar hdfs://hadoop1:8020/common/jar ...
用户使用的sql: select count( distinct patient_id ) from argus.table_aa000612_641cd8ce_ceff_4ea0_9b27_0a3a743f0fe3; 下面做不同的测试: 1.beeline -u jdbc:hive ...
同时处理请求的任务上限,总默认值是 4096,该参数取值范围[1 to 8192] hadoop doc ...
ERROR: Can't get master address from ZooKeeper; znode data == null 一定注意这只是问题的第一层表象,真的问题是: File /h ...
在Hive命令行执行查询时,出现错误 Error: java.io.IOException: org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block ...