Impala connection java

Impala connection java. Jun 7, 2018 · java jdbc连接impala (集成Kerberos) 有这样的一个业务场景-客户端通过接口访问impala Daemon，impala做查询并返回数据给到客户端； java. impala. But , I am facing a small problem,. conf => (optional) non-defaut Kerberos conf; java. 13 JDBC driver. config => JAAS config file; javax. May 17, 2018 · What's in your jaas. Feb 26, 2018 · Impala jdbc connection throwing below exception while running spark job in cluster mode. What will be the JDBC URL to connect to Impala using keytab file? Configuring the example. And it works perfectly. conf?Are you running on Windows (which would explain the mention of "LSA cache" which is Microsoft-specific)?Did you enable debug traces for JAAS configuration parser, to understand why it (probably) fails to understand your conf file and reverts to the default cache, without success? In Impala 2. Statement; Aug 8, 2024 · Impala connection fails when connection from BI tools Labels: Labels: Apache Impala Reason: java. Can someone please help? Exception : Aug 7, 2015 · I am writing code to access impala using JDBC driver provided by the cloudera . auth. ###Cloudera Impala JDBC Example. zip" - com. Driver but i am getting a sql exception, bellow stack-trace java. After closing a connection , when i am checking the Mar 1, 2019 · I am using impala2. Implement JDBC access to impala. [Cloudera][ImpalaJDBCDriver](700100) Connection timeout expired. . 0-cdh5. ODBC. I have gone through Cloudera documentation, but it does not mention using keytab file with principal to connect to Impala. Jan 10, 2017 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research! But avoid …. SocketException: Connection or outbound has closed I have a simple Java application that can connect and query my cluster using Hive or Impala using code like. I am already able to connect to Impala DB by setting System property - "java. Spark job creates hive table and does impala table invalidate/refresh using JDBC. The same job executes Jun 23, 2019 · While connection to kerberized hadoop environment error: [Simba]ImpalaJDBCDriver Unable to connect to server: [Simba]ImpalaJDBCDriver Kerberos Authentication failed. Start the Impala shell with no connection: $ impala-shell; Locate the hostname that is running the impalad daemon. krb5. Code engineering Objectives of the experiment. pom. SocketException: Connection or outbound has closed Feb 28, 2019 · I am using impala2. SQLException; import java. 5. jdbc4. Impala clients can connect to the Coordinator Impala Daemon (impalad) via HiveServer2 over HTTP or over the TCP binary. It does the same for the test. Download and configure the JDBC driver to access Impala from a Java program that you write, or a Business Intelligence or similar tool that uses JDBC to communicate with database products. The Hue web-based user interface. useSubjectCredsOnly => must be forced to "false" (the default has changed in some Java release, duh) Sample JAAS conf file, Impala/Hive Cloudera drivers Here with a Windows path in Java-style notation. cloudera. sql. Sep 18, 2019 · I am trying to connect to Impala using keytab file but I didn't find exact URL to connect with keytab. xml as described above. Enter a command of the form: Jun 30, 2020 · I wrote a very simple Java app to query the Hadoop table (which is mange by someone else), but the connection is unstable. xml. If Oracle connection ID2 is not used, impala connects successfully. If you are already using JDBC applications with an earlier Impala release, you should update your JDBC driver, because the Hive 0. 12. Driver). 1. This example shows how to build and run a maven-based project that executes SQL queries on Cloudera Impala using JDBC. 0 and later. You can connect and submit requests to the Impala through: The impala-shell interactive command interpreter The Hue web-based user interface JDBC ODBC Oct 12, 2016 · I am trying to connect from Java program to impala using the below driver com. 0) and compiles into a jar. For specialized kinds of analysis, you can supplement the Impala built-in functions by writing user-defined functions in C++ or Java. And it works perfectly . I've installed cloudera quick. The below exception occurs only when the application also tries to connect to Oracle DB using the spring bean (ID2). 1005. net. JDBC. 9. Normally it runs very well, but when I run distcp (which cost the Cluster Network IO and HDFS IO), the java program may throw errors. Installing the JDBC driver on every system that runs the JDBC-enabled application. 0 and later, you can use the Hive 0. Follow this tutorial to integrate connectivity to Impala data into a Java-based ORM framework, Hibernate. DriverManager; import java. Asking for help, clarification, or responding to other answers. 16. Jun 24, 2016 · Does anybody have an idea about this or suggestions about other Java based SQL clients that can connect to Impala (and give you full control of the connection string) and might work better? You can connect and submit requests to the Impala through: The impala-shell interactive command interpreter. Edit the file src/main/resources/ClouderaImpalaJdbcExample. Connection; import java. Object-relational mapping (ORM) techniques make it easier to work with relational data sources and can bridge your logical business model with your physical storage model. url (Impala's default JDBC port is 21050) and set the appropriate JDBC driver class. net Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. I cannot establish a connection to Impala (impalad version 2. security. Reason: java. I tried to use BasicDataSource to manage the connection, the same connection May 24, 2016 · Hello, I would like to step into this discussion as well. Use the connect command to connect to an Impala instance. SQLException: [Simba][ Setting up a JDBC connection to Impala involves the following steps: Verifying the communication port where the Impala daemons in your cluster are listening for incoming JDBC requests. Details: java Connect to Impala in a Spring Boot Application using CData JDBC Impala Driver VIRTUAL EVENT Foundations: Join us to learn how a connectivity strategy can help power your AI initiatives Aug 7, 2024 · Solved: I am trying to connect to impala using jdbc from one of the BI tools however , The connection being - 391464 Failed to connect to server. Apr 15, 2019 · It occurs with Java 1. login. If that impalad uses a non-default port (something other than port 21000) for impala-shell connections, find out the port number also. 2. 8 version; if I change it to Java 1. 4. import java. config" to JAAS config file. Aug 7, 2024 · 3. 6. 1 and connecting to impala with impala_jdbc_2. 1007. Make sure to set your local repo in pom. Normally it runs very well, but when I run distcp (which cost the Cluster Network IO and HDFS IO), the java p Jun 21, 2019 · I am trying to connect to Impala DB using kerberos KeyTab authentication and JAAS configuration. 12 driver that was formerly the only choice is not compatible with Impala 2. Aug 8, 2024 · Impala connection fails when connection from BI tools Labels: Labels: Apache Impala Reason: java. For creating a table in impala you could pass it as a query, neednot do it in hive. In case you add/create a table in hive then you need to invalidate metadata in impala so as to reflect the table details in impala. ResultSet; import java. This branch is for Cloudera Impala included with CDH 5. 1 RELEASE) using the recommended JDBC drivers ("Cloudera_ImpalaJDBC4_2. Because ImpalaJDBC41 is made of Cloudera Maintained, and the package has not been uploaded to the maven repository, so you can only download it from his official website Cloudera’s official Connector siteThen introduce it locally Apr 7, 2015 · Refer the following link, this has a sample code for the impala connection using the jdbc driver. 3. conf and set an Impala daemon's host and port in the connection. Here is the working code: If you want to build the jar yourself, the build script downloads the necessary dependencies, generates the java code (using thrift 0. Setting up a JDBC connection to Impala involves the following steps: Verifying the communication port where the Impala daemons in your cluster are listening for incoming JDBC requests. 7, it works fine. TODO: Use maven so that the project can easily be imported in clojure / clojar. dlutif dnlwpql gkiicc znfs hxo gsrjp bcvw uomrqeu awbev gaxvc