Because of this below property in core-site.xml, it works for you hadoop.security.auth_to_local The mapping rules. For example: RULE:[2:$1@$0]([jt]t@.*EXAMPLE.COM)s/.*/mapred/ RULE:[2:$1@$0]([nd]n@.*EXAMPLE.COM)s/.*/hdfs/ RULE:[2:$1@$0](hm@.*EXAMPLE.COM)s/.*/hbase/ RULE:[2:$1@$0](rs@.*EXAMPLE.COM)s/.*/hbase/ DEFAULT The mapping from Kerberos principal names to local OS user names. See Creating Mappings Between Principals and UNIX Usernames for more information. ... View more

CREATE TABLE `exchangedata`( `day` string, `euro` float, `yen` float, `dollar` float) ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'| WITH SERDEPROPERTIES ( 'field.delim'=',', 'serialization.format'=',') STORED AS INPUTFORMAT 'org.apache.hadoop.mapred.TextInputFormat' OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' TBLPROPERTIES ( 'transactional'='false'); ... View more

For first error,try to increase the operation system's buffer size sysctl -w net.core.rmem_max=2097152 wmem_max https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Web_Platform/5/html/Administration_And_Configuration_Guide/jgroups-perf-udpbuffer.html ... View more