@abbas mohammadnejad Please refer to post Knox+HDFS UI. It explains that configuration for HDFS UI through Knox. ... View more

@Abhishek Gupta Hive Merge is available from Hive 2.2 [Details]. Back port the feature to Hive 1.2.1 would be a challenge, since it includes many changes related to ACID, transactions etc.. You could use Hive Merge on Hive 2.1 without LLAP as well with hive.llap.execution.mode=none [Property details]. Hope this is helpful. ... View more

@Joshva Peter Above message "Operation category READ is not supported in state standby" is when the Balancer connects to Standby Namenode and the connection would later failover to other Active Namenode. Since, there is no error reported. Capture the debug logs as below to analyse the issue. export HADOOP_BALANCER_OPTS="-Droot.logger=DEBUG,console" Run the balancer as: hdfs balancer 'options' 2>&1 | tee /tmp/balancer.log ... View more

@Zholaman Kubaliyev The issue could be related to incorrect configuration / memory value for property "tez.runtime.io.sort.mb". Refer HCC link for tuning tez configurations. ... View more

@yogesh turkane Seems like your coordinator process is not registered or some configuration issues, from logs I did observe below error 2018-10-04T06:43:50,101 ERROR [main] io.druid.curator.discovery.ServerDiscoverySelector - No server instance found for [druid/coordinator] 2018-10-04T06:43:50,101 WARN [main] io.druid.java.util.common.RetryUtils - Failed on try 1, retrying in 886ms. io.druid.java.util.common.IOE: No known server Check the configurations and restart Druid services. ... View more

@Bal P You could verify the skew table from 'desc formatted <table_name>'. hive> desc formatted T; OK # col_name data_type comment c1 string c2 string # Detailed Table Information Database: default Owner: hive CreateTime: Fri Oct 05 09:16:47 UTC 2018 LastAccessTime: UNKNOWN Protect Mode: None Retention: 0 Location: hdfs://xxx:8020/apps/hive/warehouse/t Table Type: MANAGED_TABLE Table Parameters: COLUMN_STATS_ACCURATE {\"BASIC_STATS\":\"true\"} numFiles 0 numRows 0 rawDataSize 0 totalSize 0 transient_lastDdlTime 1538731007 # Storage Information SerDe Library: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe InputFormat: org.apache.hadoop.mapred.TextInputFormat OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat Compressed: No Num Buckets: -1 Bucket Columns: [] Sort Columns: [] Skewed Columns: [c1] Skewed Values: [[x1]] Storage Desc Params: serialization.format 1 Time taken: 0.899 seconds, Fetched: 34 row(s) Or, from backend Hive Metastore DB to get list of the tables and their skew columns. mysql> select S1.SKEWED_COL_NAME,T1.TBL_NAME from SKEWED_COL_NAMES S1, TBLS T1 where S1.SD_ID=T1.SD_ID; +-----------------+----------+ | SKEWED_COL_NAME | TBL_NAME | +-----------------+----------+ | c1 | t | +-----------------+----------+ 1 row in set (0.00 sec) ... View more

@Saurabh Do you have the datasource "Sterlingtest" available under Druid coordinator UI? If yes, then check the hive-druid configurations under Ambari -> Hive configs and see if broker and coordinator addresses are configured properly. ... View more

@Teddy Brewski Below are the properties which control the logs and other files written to /tmp/<username> folder. <property> <name>hive.exec.scratchdir</name> <value>/tmp/hive</value> </property> <property> <name>hive.exec.local.scratchdir</name> <value>/var/log/hadoop/hive/tmp/${user.name}</value> </property> <property> <name>hive.downloaded.resources.dir</name> <value>/var/log/hadoop/hive/tmp/hive/${hive.session.id}_resources</value> </property> <property> <name>hive.server2.logging.operation.log.location</name> <value>/var/log/hadoop/hive/tmp/operations_logs</value> </property> You can add/modify under Ambari -> Hive configs. ... View more

@Vikash Kumar The properties 'mapreduce.job.*' are only applicable to MR jobs. In Tez, the number of mappers and controlled by below parameters: tez.grouping.max-size(default 1073741824 which is 1GB) tez.grouping.min-size(default 52428800 which is 50MB) tez.grouping.split-count(not set by default) And, reducers are controlled in Hive with properties: hive.exec.reducers.bytes.per.reducer(default 256000000) hive.exec.reducers.max(default 1009) hive.tez.auto.reducer.parallelism(default false) For more details, refer link. ... View more

@Saurabh Data Analytic Studio is replacement for both Hive view and Tez views under Ambari. Refer to more details in below links: https://hortonworks.com/products/dataplane/data-analytics-studio/ https://hortonworks.com/products/dataplane/data-analytics-studio/ https://docs.hortonworks.com/HDPDocuments/DAS/DAS-1.0.0/index.html ... View more

@Kant T Hive on Spark is not supported, hence the error. You may try SparkSQL if you want to leverage Spark. ... View more

@Serg Serg You could monitor the Hive Tez applications from RM UI. We could check query status and resources used. However, we cannot check the query plan. ... View more

@Benhail Muthyala Sqoop eval with select query basically returns the output of the query on the terminal and storing the same onto a variable is not possible. You can do following: sqoop eval \ -libjars $LIB_JARS -Dteradata.db.input.job.type=hive \ --connect "jdbc:teradata://XXXXXXx" \ --username XXXXXX \ --password XXXXX \ --query "select count(*) from database_name.table_name 1> sqoop.out 2>sqoop.err hive -S -e "select count(*)from database_name.table_name ;" 1> hive.out 2>hive.err The files sqoop.out and hive.out would include some log messages as well which could be grepped and removed. ... View more

@James Creating Hive bucketed table is supported from Spark 2.3 (Jira SPARK-17729). Spark will disallow users from writing outputs to hive bucketed tables, by default. Setting `hive.enforce.bucketing=false` and `hive.enforce.sorting=false` will allow you to save to hive bucketed tables. If you want, you can set those two properties in Custom spark2-hive-site-override on Ambari, then all spark2 application will pick the configurations. For more details,refer Slideshare. ... View more

@Arun Cherla You can refer link for list of all HTTP endpoints. Please accept answer if this helped. ... View more

@naveen r Run Hive query would be running a YARN application and when the queue resource is utilized, then the performance of the query would be affected with respect to container allocation. Wrt HDFS, Hive query would be writing intermediate results, join data spills on the user's temporary directory on HDFS. Less or no storage would be lead to query failures. ... View more

@Jai C It seems like Sqoop exported '0' records and the mapper failed. Check the application log for errors and share the complete error stack. ... View more

@Jai C As mentioned in the Sqoop Jira, export into Bucketed Hive table is not supported. To export into Hive table, recreate the table without 'clustered by'. ... View more

@Jai C The error is not related to the Windows authentication, but is because of the Hive/Hcatalog table being a bucketed table which is not supported from Sqoop export. You can verify the same by running command from Hive Cli / Beeline: show create table <database>.<table>; The table definition would be like, keyword being 'clustered by': hive> show create table default.test_bucket; OK CREATE TABLE `default.test_bucket`( `col1` int, `col2` string) CLUSTERED BY ( col1) INTO 3 BUCKETS ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.orc.OrcSerde' STORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat' OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat' LOCATION 'hdfs://xxx.com:8020/apps/hive/warehouse/test_bucket' TBLPROPERTIES ( 'numFiles'='13', 'numRows'='0', 'rawDataSize'='0', 'totalSize'='8883', 'transactional'='true', 'transient_lastDdlTime'='1505206092') Time taken: 0.786 seconds, Fetched: 21 row(s) ... View more

@Jai C Below is the sample export command which works. In your case, could you share the error seen? sqoop export --connect "jdbc:jtds:sqlserver://IE11WIN7:1433;useNTLMv2=true;domain=IE11WIN7;databaseName=default_db" --table "test_table_view" --hcatalog-database default --hcatalog-table t1 --columns col2,col3 --connection-manager org.apache.sqoop.manager.SQLServerManager --driver net.sourceforge.jtds.jdbc.Driver --username IEUser --password 'Passw0rd!' --update-mode allowinsert --verbose ... View more

@Jai C Based on the following Jira, unfortunately, it seems like the ability to import directly into hive bucketed tables is not supported yet. https://issues.apache.org/jira/browse/SQOOP-1889 So, you would have to import the data to an intermediate table and then insert into the bucketed table. Please accept answer if this helped. ... View more

It would be due to amount of data being processed and with mapper=1, it would performing low. Try increasing the mappers like "-m 20". ... View more

@Saravanan Muthiah When using hive-jdbc-standalone*.jar, part from hadoop-common*.jar, below are the other dependent jars required: ibthrift-0.9.0.jar httpclient-4.2.5.jar httpcore-4.2.5.jar commons-logging-1.1.3.jar hive-common.jar slf4j-api-1.7.5.jar hive-metastore.jar hive-service.jar hadoop-common.jar hive-jdbc.jar guava-11.0.2.jar Please add the jars in the classpath under Client and try again. ... View more