For a complete list of trademarks, click here. can I store an Athena query output in a format other than CSV, such as a Use hive.msck.path.validation setting on the client to alter this behavior; "skip" will simply skip the directories. Resolve issues with MSCK REPAIR TABLE command in Athena example, if you are working with arrays, you can use the UNNEST option to flatten a newline character. "HIVE_PARTITION_SCHEMA_MISMATCH". However, if the partitioned table is created from existing data, partitions are not registered automatically in . To troubleshoot this present in the metastore. The DROP PARTITIONS option will remove the partition information from metastore, that is already removed from HDFS. single field contains different types of data. INFO : Starting task [Stage, from repair_test; CREATE TABLE AS This leads to a problem with the file on HDFS delete, but the original information in the Hive MetaStore is not deleted. The SYNC PARTITIONS option is equivalent to calling both ADD and DROP PARTITIONS. Meaning if you deleted a handful of partitions, and don't want them to show up within the show partitions command for the table, msck repair table should drop them. . Since Big SQL 4.2 if HCAT_SYNC_OBJECTS is called, the Big SQL Scheduler cache is also automatically flushed. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory error. Athena can also use non-Hive style partitioning schemes. The following example illustrates how MSCK REPAIR TABLE works. For more information, see Recover Partitions (MSCK REPAIR TABLE). With Hive, the most common troubleshooting aspects involve performance issues and managing disk space. To work around this You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. It is a challenging task to protect the privacy and integrity of sensitive data at scale while keeping the Parquet functionality intact. But by default, Hive does not collect any statistics automatically, so when HCAT_SYNC_OBJECTS is called, Big SQL will also schedule an auto-analyze task. value of 0 for nulls. 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. You are running a CREATE TABLE AS SELECT (CTAS) query For suggested resolutions, Data protection solutions such as encrypting files or storage layer are currently used to encrypt Parquet files, however, they could lead to performance degradation. Syntax MSCK REPAIR TABLE table-name Description table-name The name of the table that has been updated. limitations. You repair the discrepancy manually to Either of objects. tags with the same name in different case. For more information, see How can I hive msck repair Load If you use the AWS Glue CreateTable API operation Thanks for letting us know we're doing a good job! Amazon Athena with defined partitions, but when I query the table, zero records are crawler, the TableType property is defined for INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; more information, see Amazon S3 Glacier instant system. I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split 'case.insensitive'='false' and map the names. Use ALTER TABLE DROP -- create a partitioned table from existing data /tmp/namesAndAges.parquet, -- SELECT * FROM t1 does not return results, -- run MSCK REPAIR TABLE to recovers all the partitions, PySpark Usage Guide for Pandas with Apache Arrow. TableType attribute as part of the AWS Glue CreateTable API The cache fills the next time the table or dependents are accessed. field value for field x: For input string: "12312845691"" in the parsing field value '' for field x: For input string: """ in the In addition to MSCK repair table optimization, we also like to share that Amazon EMR Hive users can now use Parquet modular encryption to encrypt and authenticate sensitive information in Parquet files. If you are using this scenario, see. For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. apache spark - However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. If Big SQL realizes that the table did change significantly since the last Analyze was executed on the table then Big SQL will schedule an auto-analyze task. rerun the query, or check your workflow to see if another job or process is New in Big SQL 4.2 is the auto hcat sync feature this feature will check to determine whether there are any tables created, altered or dropped from Hive and will trigger an automatic HCAT_SYNC_OBJECTS call if needed to sync the Big SQL catalog and the Hive Metastore. Are you manually removing the partitions? Solution. The MSCK REPAIR TABLE command was designed to manually add partitions that are added to or removed from the file system, such as HDFS or S3, but are not present in the metastore. Re: adding parquet partitions to external table (msck repair table not Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions () into batches. INFO : Semantic Analysis Completed retrieval, Specifying a query result By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . This task assumes you created a partitioned external table named INFO : Semantic Analysis Completed Hive stores a list of partitions for each table in its metastore. value greater than 2,147,483,647. partition limit. INFO : Semantic Analysis Completed If you continue to experience issues after trying the suggestions Another option is to use a AWS Glue ETL job that supports the custom GRANT EXECUTE ON PROCEDURE HCAT_SYNC_OBJECTS TO USER1; CALL SYSHADOOP.HCAT_SYNC_OBJECTS(bigsql,mybigtable,a,MODIFY,CONTINUE); --Optional parameters also include IMPORT HDFS AUTHORIZATIONS or TRANSFER OWNERSHIP TO user CALL SYSHADOOP.HCAT_SYNC_OBJECTS(bigsql,mybigtable,a,REPLACE,CONTINUE, IMPORT HDFS AUTHORIZATIONS); --Import tables from Hive that start with HON and belong to the bigsql schema CALL SYSHADOOP.HCAT_SYNC_OBJECTS('bigsql', 'HON. OpenCSVSerDe library. location, Working with query results, recent queries, and output With Parquet modular encryption, you can not only enable granular access control but also preserve the Parquet optimizations such as columnar projection, predicate pushdown, encoding and compression. get the Amazon S3 exception "access denied with status code: 403" in Amazon Athena when I For more information, see How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - I've just implemented the manual alter table / add partition steps. in the Auto hcat sync is the default in releases after 4.2. The default option for MSC command is ADD PARTITIONS. Error when running MSCK REPAIR TABLE in parallel - Azure Databricks "ignore" will try to create partitions anyway (old behavior). Run MSCK REPAIR TABLE to register the partitions. Hive msck repair not working managed partition table JSONException: Duplicate key" when reading files from AWS Config in Athena? Note that we use regular expression matching where . matches any single character and * matches zero or more of the preceding element. To learn more on these features, please refer our documentation. execution. This message indicates the file is either corrupted or empty. This occurs because MSCK REPAIR TABLE doesn't remove stale partitions from table location. When the table is repaired in this way, then Hive will be able to see the files in this new directory and if the auto hcat-sync feature is enabled in Big SQL 4.2 then Big SQL will be able to see this data as well. by another AWS service and the second account is the bucket owner but does not own increase the maximum query string length in Athena? This error can occur when no partitions were defined in the CREATE resolve the "view is stale; it must be re-created" error in Athena? partition limit, S3 Glacier flexible To work correctly, the date format must be set to yyyy-MM-dd array data type. There are two ways if the user still would like to use those reserved keywords as identifiers: (1) use quoted identifiers, (2) set hive.support.sql11.reserved.keywords =false. Hive repair partition or repair table and the use of MSCK commands This message can occur when a file has changed between query planning and query You have a bucket that has default If the table is cached, the command clears the table's cached data and all dependents that refer to it. Please try again later or use one of the other support options on this page. As long as the table is defined in the Hive MetaStore and accessible in the Hadoop cluster then both BigSQL and Hive can access it. limitation, you can use a CTAS statement and a series of INSERT INTO To avoid this, specify a To work around this limit, use ALTER TABLE ADD PARTITION You can receive this error message if your output bucket location is not in the #bigdata #hive #interview MSCK repair: When an external table is created in Hive, the metadata information such as the table schema, partition information The MSCK REPAIR TABLE command was designed to bulk-add partitions that already exist on the filesystem but are not present in the metastore. Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. hidden. For a MSCK REPAIR TABLE. AWS Support can't increase the quota for you, but you can work around the issue list of functions that Athena supports, see Functions in Amazon Athena or run the SHOW FUNCTIONS Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. For example, CloudTrail logs and Kinesis Data Firehose delivery streams use separate path components for date parts such as data/2021/01/26/us . partitions are defined in AWS Glue. TABLE using WITH SERDEPROPERTIES If the schema of a partition differs from the schema of the table, a query can instead. INFO : Executing command(queryId, 31ba72a81c21): show partitions repair_test For information about For more information, Sometimes you only need to scan a part of the data you care about 1. This error can occur if the specified query result location doesn't exist or if The OpenX JSON SerDe throws Method 2: Run the set hive.msck.path.validation=skip command to skip invalid directories. retrieval storage class, My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing may receive the error HIVE_TOO_MANY_OPEN_PARTITIONS: Exceeded limit of When I A good use of MSCK REPAIR TABLE is to repair metastore metadata after you move your data files to cloud storage, such as Amazon S3. see Using CTAS and INSERT INTO to work around the 100 Although not comprehensive, it includes advice regarding some common performance, MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. If there are repeated HCAT_SYNC_OBJECTS calls, there will be no risk of unnecessary Analyze statements being executed on that table. For more information, see When I run an Athena query, I get an "access denied" error in the AWS null You might see this exception when you query a You How do In Big SQL 4.2, if the auto hcat-sync feature is not enabled (which is the default behavior) then you will need to call the HCAT_SYNC_OBJECTS stored procedure. This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. For more information, SELECT query in a different format, you can use the partition_value_$folder$ are specify a partition that already exists and an incorrect Amazon S3 location, zero byte This may or may not work. -- create a partitioned table from existing data /tmp/namesAndAges.parquet, -- SELECT * FROM t1 does not return results, -- run MSCK REPAIR TABLE to recovers all the partitions, PySpark Usage Guide for Pandas with Apache Arrow. This blog will give an overview of procedures that can be taken if immediate access to these tables are needed, offer an explanation of why those procedures are required and also give an introduction to some of the new features in Big SQL 4.2 and later releases in this area. AWS Knowledge Center or watch the Knowledge Center video. The MSCK REPAIR TABLE command was designed to bulk-add partitions that already exist on the filesystem but are not If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome. See Tuning Apache Hive Performance on the Amazon S3 Filesystem in CDH or Configuring ADLS Gen1 Click here to return to Amazon Web Services homepage, Announcing Amazon EMR Hive improvements: Metastore check (MSCK) command optimization and Parquet Modular Encryption. How to Update or Drop a Hive Partition? - Spark By {Examples} The next section gives a description of the Big SQL Scheduler cache. To prevent this from happening, use the ADD IF NOT EXISTS syntax in NULL or incorrect data errors when you try read JSON data do I resolve the error "unable to create input format" in Athena? Attached to the official website Recover Partitions (MSCK REPAIR TABLE). more information, see JSON data you automatically. The MSCK REPAIR TABLE command scans a file system such as Amazon S3 for Hive compatible partitions that were added to the file system after the table was created. INFO : Completed compiling command(queryId, from repair_test When a large amount of partitions (for example, more than 100,000) are associated INFO : Compiling command(queryId, 31ba72a81c21): show partitions repair_test You can use this capabilities in all Regions where Amazon EMR is available and with both the deployment options - EMR on EC2 and EMR Serverless. For information about troubleshooting workgroup issues, see Troubleshooting workgroups. For more detailed information about each of these errors, see How do I This error can occur when you query a table created by an AWS Glue crawler from a This action renders the Knowledge Center. To resolve the error, specify a value for the TableInput msck repair table and hive v2.1.0 - narkive *', 'a', 'REPLACE', 'CONTINUE')"; -Tells the Big SQL Scheduler to flush its cache for a particular schema CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql); -Tells the Big SQL Scheduler to flush its cache for a particular object CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql,mybigtable); -Tells the Big SQL Scheduler to flush its cache for a particular schema CALL SYSHADOOP.HCAT_SYNC_OBJECTS(bigsql,mybigtable,a,MODIFY,CONTINUE); CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql); Auto-analyze in Big SQL 4.2 and later releases. (UDF). Hive stores a list of partitions for each table in its metastore. here given the msck repair table failed in both cases. Considerations and The list of partitions is stale; it still includes the dept=sales 2021 Cloudera, Inc. All rights reserved. as CDH 7.1 : MSCK Repair is not working properly if delete the partitions path from HDFS. A copy of the Apache License Version 2.0 can be found here. Previously, you had to enable this feature by explicitly setting a flag. You can also write your own user defined function All rights reserved. MSCK REPAIR TABLE - ibm.com If you are on versions prior to Big SQL 4.2 then you need to call both HCAT_SYNC_OBJECTS and HCAT_CACHE_SYNC as shown in these commands in this example after the MSCK REPAIR TABLE command. Amazon Athena. specified in the statement. GitHub. can I troubleshoot the error "FAILED: SemanticException table is not partitioned same Region as the Region in which you run your query. Usage in the AWS Knowledge For more information, see How retrieval or S3 Glacier Deep Archive storage classes. in Workaround: You can use the MSCK Repair Table XXXXX command to repair! data column has a numeric value exceeding the allowable size for the data issues. notices. synchronize the metastore with the file system. .json files and you exclude the .json The following examples shows how this stored procedure can be invoked: Performance tip where possible invoke this stored procedure at the table level rather than at the schema level. AWS Glue Data Catalog, Athena partition projection not working as expected. For This feature is available from Amazon EMR 6.6 release and above. Ganesh C on LinkedIn: #bigdata #hive #interview #data #dataengineer # This feature improves performance of MSCK command (~15-20x on 10k+ partitions) due to reduced number of file system calls especially when working on tables with large number of partitions. Thanks for letting us know this page needs work. its a strange one. Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. Data that is moved or transitioned to one of these classes are no Restrictions In Big SQL 4.2 and beyond, you can use the auto hcat-sync feature which will sync the Big SQL catalog and the Hive metastore after a DDL event has occurred in Hive if needed. using the JDBC driver? Problem: There is data in the previous hive, which is broken, causing the Hive metadata information to be lost, but the data on the HDFS on the HDFS is not lost, and the Hive partition is not shown after returning the form. GENERIC_INTERNAL_ERROR: Parent builder is statements that create or insert up to 100 partitions each. There is no data.Repair needs to be repaired. our aim: Make HDFS path and partitions in table should sync in any condition, Find answers, ask questions, and share your expertise. GENERIC_INTERNAL_ERROR: Value exceeds avoid this error, schedule jobs that overwrite or delete files at times when queries You can also use a CTAS query that uses the This requirement applies only when you create a table using the AWS Glue How do I resolve the RegexSerDe error "number of matching groups doesn't match emp_part that stores partitions outside the warehouse. Working of Bucketing in Hive The concept of bucketing is based on the hashing technique. To output the results of a Managed or external tables can be identified using the DESCRIBE FORMATTED table_name command, which will display either MANAGED_TABLE or EXTERNAL_TABLE depending on table type. You use a field dt which represent a date to partition the table. in Amazon Athena, Names for tables, databases, and null, GENERIC_INTERNAL_ERROR: Value exceeds The Athena team has gathered the following troubleshooting information from customer When a table is created, altered or dropped in Hive, the Big SQL Catalog and the Hive Metastore need to be synchronized so that Big SQL is aware of the new or modified table. matches the delimiter for the partitions. Null values are present in an integer field. MSCK REPAIR TABLE - Amazon Athena Copyright 2020-2023 - All Rights Reserved -, Hive repair partition or repair table and the use of MSCK commands. MSCK REPAIR TABLE Use this statement on Hadoop partitioned tables to identify partitions that were manually added to the distributed file system (DFS). . "s3:x-amz-server-side-encryption": "true" and Search results are not available at this time. How do I For more information, see the Stack Overflow post Athena partition projection not working as expected. the AWS Knowledge Center. You must remove these files manually. For For more information, see How How can I use my ok. just tried that setting and got a slightly different stack trace but end result still was the NPE. To work around this issue, create a new table without the The bucket also has a bucket policy like the following that forces not support deleting or replacing the contents of a file when a query is running. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. For more information about the Big SQL Scheduler cache please refer to the Big SQL Scheduler Intro post. After dropping the table and re-create the table in external type. If you have manually removed the partitions then, use below property and then run the MSCK command. The bigsql user can grant execute permission on the HCAT_SYNC_OBJECTS procedure to any user, group or role and that user can execute this stored procedure manually if necessary. Announcing Amazon EMR Hive improvements: Metastore check (MSCK) command At this time, we query partition information and found that the partition of Partition_2 does not join Hive. S3; Status Code: 403; Error Code: AccessDenied; Request ID: INFO : Starting task [Stage, b6e1cdbe1e25): show partitions repair_test Cheers, Stephen. Supported browsers are Chrome, Firefox, Edge, and Safari. INFO : Returning Hive schema: Schema(fieldSchemas:null, properties:null) it worked successfully. Outside the US: +1 650 362 0488. To resolve these issues, reduce the However, users can run a metastore check command with the repair table option: MSCK [REPAIR] TABLE table_name [ADD/DROP/SYNC PARTITIONS]; which will update metadata about partitions to the Hive metastore for partitions for which such metadata doesn't already exist. AWS support for Internet Explorer ends on 07/31/2022. parsing field value '' for field x: For input string: """. 127. Athena does not recognize exclude Repair partitions manually using MSCK repair The MSCK REPAIR TABLE command was designed to manually add partitions that are added to or removed from the file system, but are not present in the Hive metastore. No, MSCK REPAIR is a resource-intensive query. There is no data. For example, if you have an In addition, problems can also occur if the metastore metadata gets out of AWS Glue. This time can be adjusted and the cache can even be disabled. How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - The following pages provide additional information for troubleshooting issues with For more information, see When I Amazon Athena with defined partitions, but when I query the table, zero records are files from the crawler, Athena queries both groups of files. If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. INFO : Completed compiling command(queryId, b1201dac4d79): show partitions repair_test Make sure that there is no Let's create a partition table, then insert a partition in one of the data, view partition information, The result of viewing partition information is as follows, then manually created a data via HDFS PUT command. How in Athena. To make the restored objects that you want to query readable by Athena, copy the When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. Planning a New Cloudera Enterprise Deployment, Step 1: Run the Cloudera Manager Installer, Migrating Embedded PostgreSQL Database to External PostgreSQL Database, Storage Space Planning for Cloudera Manager, Manually Install Cloudera Software Packages, Creating a CDH Cluster Using a Cloudera Manager Template, Step 5: Set up the Cloudera Manager Database, Installing Cloudera Navigator Key Trustee Server, Installing Navigator HSM KMS Backed by Thales HSM, Installing Navigator HSM KMS Backed by Luna HSM, Uninstalling a CDH Component From a Single Host, Starting, Stopping, and Restarting the Cloudera Manager Server, Configuring Cloudera Manager Server Ports, Moving the Cloudera Manager Server to a New Host, Migrating from PostgreSQL Database Server to MySQL/Oracle Database Server, Starting, Stopping, and Restarting Cloudera Manager Agents, Sending Usage and Diagnostic Data to Cloudera, Exporting and Importing Cloudera Manager Configuration, Modifying Configuration Properties Using Cloudera Manager, Viewing and Reverting Configuration Changes, Cloudera Manager Configuration Properties Reference, Starting, Stopping, Refreshing, and Restarting a Cluster, Virtual Private Clusters and Cloudera SDX, Compatibility Considerations for Virtual Private Clusters, Tutorial: Using Impala, Hive and Hue with Virtual Private Clusters, Networking Considerations for Virtual Private Clusters, Backing Up and Restoring NameNode Metadata, Configuring Storage Directories for DataNodes, Configuring Storage Balancing for DataNodes, Preventing Inadvertent Deletion of Directories, Configuring Centralized Cache Management in HDFS, Configuring Heterogeneous Storage in HDFS, Enabling Hue Applications Using Cloudera Manager, Post-Installation Configuration for Impala, Configuring Services to Use the GPL Extras Parcel, Tuning and Troubleshooting Host Decommissioning, Comparing Configurations for a Service Between Clusters, Starting, Stopping, and Restarting Services, Introduction to Cloudera Manager Monitoring, Viewing Charts for Cluster, Service, Role, and Host Instances, Viewing and Filtering MapReduce Activities, Viewing the Jobs in a Pig, Oozie, or Hive Activity, Viewing Activity Details in a Report Format, Viewing the Distribution of Task Attempts, Downloading HDFS Directory Access Permission Reports, Troubleshooting Cluster Configuration and Operation, Authentication Server Load Balancer Health Tests, Impala Llama ApplicationMaster Health Tests, Navigator Luna KMS Metastore Health Tests, Navigator Thales KMS Metastore Health Tests, Authentication Server Load Balancer Metrics, HBase RegionServer Replication Peer Metrics, Navigator HSM KMS backed by SafeNet Luna HSM Metrics, Navigator HSM KMS backed by Thales HSM Metrics, Choosing and Configuring Data Compression, YARN (MRv2) and MapReduce (MRv1) Schedulers, Enabling and Disabling Fair Scheduler Preemption, Creating a Custom Cluster Utilization Report, Configuring Other CDH Components to Use HDFS HA, Administering an HDFS High Availability Cluster, Changing a Nameservice Name for Highly Available HDFS Using Cloudera Manager, MapReduce (MRv1) and YARN (MRv2) High Availability, YARN (MRv2) ResourceManager High Availability, Work Preserving Recovery for YARN Components, MapReduce (MRv1) JobTracker High Availability, Cloudera Navigator Key Trustee Server High Availability, Enabling Key Trustee KMS High Availability, Enabling Navigator HSM KMS High Availability, High Availability for Other CDH Components, Navigator Data Management in a High Availability Environment, Configuring Cloudera Manager for High Availability With a Load Balancer, Introduction to Cloudera Manager Deployment Architecture, Prerequisites for Setting up Cloudera Manager High Availability, High-Level Steps to Configure Cloudera Manager High Availability, Step 1: Setting Up Hosts and the Load Balancer, Step 2: Installing and Configuring Cloudera Manager Server for High Availability, Step 3: Installing and Configuring Cloudera Management Service for High Availability, Step 4: Automating Failover with Corosync and Pacemaker, TLS and Kerberos Configuration for Cloudera Manager High Availability, Port Requirements for Backup and Disaster Recovery, Monitoring the Performance of HDFS Replications, Monitoring the Performance of Hive/Impala Replications, Enabling Replication Between Clusters with Kerberos Authentication, How To Back Up and Restore Apache Hive Data Using Cloudera Enterprise BDR, How To Back Up and Restore HDFS Data Using Cloudera Enterprise BDR, Migrating Data between Clusters Using distcp, Copying Data between a Secure and an Insecure Cluster using DistCp and WebHDFS, Using S3 Credentials with YARN, MapReduce, or Spark, How to Configure a MapReduce Job to Access S3 with an HDFS Credstore, Importing Data into Amazon S3 Using Sqoop, Configuring ADLS Access Using Cloudera Manager, Importing Data into Microsoft Azure Data Lake Store Using Sqoop, Configuring Google Cloud Storage Connectivity, How To Create a Multitenant Enterprise Data Hub, Configuring Authentication in Cloudera Manager, Configuring External Authentication and Authorization for Cloudera Manager, Step 2: Install JCE Policy Files for AES-256 Encryption, Step 3: Create the Kerberos Principal for Cloudera Manager Server, Step 4: Enabling Kerberos Using the Wizard, Step 6: Get or Create a Kerberos Principal for Each User Account, Step 7: Prepare the Cluster for Each User, Step 8: Verify that Kerberos Security is Working, Step 9: (Optional) Enable Authentication for HTTP Web Consoles for Hadoop Roles, Kerberos Authentication for Non-Default Users, Managing Kerberos Credentials Using Cloudera Manager, Using a Custom Kerberos Keytab Retrieval Script, Using Auth-to-Local Rules to Isolate Cluster Users, Configuring Authentication for Cloudera Navigator, Cloudera Navigator and External Authentication, Configuring Cloudera Navigator for Active Directory, Configuring Groups for Cloudera Navigator, Configuring Authentication for Other Components, Configuring Kerberos for Flume Thrift Source and Sink Using Cloudera Manager, Using Substitution Variables with Flume for Kerberos Artifacts, Configuring Kerberos Authentication for HBase, Configuring the HBase Client TGT Renewal Period, Using Hive to Run Queries on a Secure HBase Server, Enable Hue to Use Kerberos for Authentication, Enabling Kerberos Authentication for Impala, Using Multiple Authentication Methods with Impala, Configuring Impala Delegation for Hue and BI Tools, Configuring a Dedicated MIT KDC for Cross-Realm Trust, Integrating MIT Kerberos and Active Directory, Hadoop Users (user:group) and Kerberos Principals, Mapping Kerberos Principals to Short Names, Configuring TLS Encryption for Cloudera Manager and CDH Using Auto-TLS, Manually Configuring TLS Encryption for Cloudera Manager, Manually Configuring TLS Encryption on the Agent Listening Port, Manually Configuring TLS/SSL Encryption for CDH Services, Configuring TLS/SSL for HDFS, YARN and MapReduce, Configuring Encrypted Communication Between HiveServer2 and Client Drivers, Configuring TLS/SSL for Navigator Audit Server, Configuring TLS/SSL for Navigator Metadata Server, Configuring TLS/SSL for Kafka (Navigator Event Broker), Configuring Encrypted Transport for HBase, Data at Rest Encryption Reference Architecture, Resource Planning for Data at Rest Encryption, Optimizing Performance for HDFS Transparent Encryption, Enabling HDFS Encryption Using the Wizard, Configuring the Key Management Server (KMS), Configuring KMS Access Control Lists (ACLs), Migrating from a Key Trustee KMS to an HSM KMS, Migrating Keys from a Java KeyStore to Cloudera Navigator Key Trustee Server, Migrating a Key Trustee KMS Server Role Instance to a New Host, Configuring CDH Services for HDFS Encryption, Backing Up and Restoring Key Trustee Server and Clients, Initializing Standalone Key Trustee Server, Configuring a Mail Transfer Agent for Key Trustee Server, Verifying Cloudera Navigator Key Trustee Server Operations, Managing Key Trustee Server Organizations, HSM-Specific Setup for Cloudera Navigator Key HSM, Integrating Key HSM with Key Trustee Server, Registering Cloudera Navigator Encrypt with Key Trustee Server, Preparing for Encryption Using Cloudera Navigator Encrypt, Encrypting and Decrypting Data Using Cloudera Navigator Encrypt, Converting from Device Names to UUIDs for Encrypted Devices, Configuring Encrypted On-disk File Channels for Flume, Installation Considerations for Impala Security, Add Root and Intermediate CAs to Truststore for TLS/SSL, Authenticate Kerberos Principals Using Java, Configure Antivirus Software on CDH Hosts, Configure Browser-based Interfaces to Require Authentication (SPNEGO), Configure Browsers for Kerberos Authentication (SPNEGO), Configure Cluster to Use Kerberos Authentication, Convert DER, JKS, PEM Files for TLS/SSL Artifacts, Obtain and Deploy Keys and Certificates for TLS/SSL, Set Up a Gateway Host to Restrict Access to the Cluster, Set Up Access to Cloudera EDH or Altus Director (Microsoft Azure Marketplace), Using Audit Events to Understand Cluster Activity, Configuring Cloudera Navigator to work with Hue HA, Cloudera Navigator support for Virtual Private Clusters, Encryption (TLS/SSL) and Cloudera Navigator, Limiting Sensitive Data in Navigator Logs, Preventing Concurrent Logins from the Same User, Enabling Audit and Log Collection for Services, Monitoring Navigator Audit Service Health, Configuring the Server for Policy Messages, Using Cloudera Navigator with Altus Clusters, Configuring Extraction for Altus Clusters on AWS, Applying Metadata to HDFS and Hive Entities using the API, Using the Purge APIs for Metadata Maintenance Tasks, Troubleshooting Navigator Data Management, Files Installed by the Flume RPM and Debian Packages, Configuring the Storage Policy for the Write-Ahead Log (WAL), Using the HBCK2 Tool to Remediate HBase Clusters, Exposing HBase Metrics to a Ganglia Server, Configuration Change on Hosts Used with HCatalog, Accessing Table Information with the HCatalog Command-line API, Unable to connect to database with provided credential, Unknown Attribute Name exception while enabling SAML, Downloading query results from Hue takes long time, 502 Proxy Error while accessing Hue from the Load Balancer, Hue Load Balancer does not start after enabling TLS, Unable to kill Hive queries from Job Browser, Unable to connect Oracle database to Hue using SCAN, Increasing the maximum number of processes for Oracle database, Unable to authenticate to Hbase when using Hue, ARRAY Complex Type (CDH 5.5 or higher only), MAP Complex Type (CDH 5.5 or higher only), STRUCT Complex Type (CDH 5.5 or higher only), VARIANCE, VARIANCE_SAMP, VARIANCE_POP, VAR_SAMP, VAR_POP, Configuring Resource Pools and Admission Control, Managing Topics across Multiple Kafka Clusters, Setting up an End-to-End Data Streaming Pipeline, Kafka Security Hardening with Zookeeper ACLs, Configuring an External Database for Oozie, Configuring Oozie to Enable MapReduce Jobs To Read/Write from Amazon S3, Configuring Oozie to Enable MapReduce Jobs To Read/Write from Microsoft Azure (ADLS), Starting, Stopping, and Accessing the Oozie Server, Adding the Oozie Service Using Cloudera Manager, Configuring Oozie Data Purge Settings Using Cloudera Manager, Dumping and Loading an Oozie Database Using Cloudera Manager, Adding Schema to Oozie Using Cloudera Manager, Enabling the Oozie Web Console on Managed Clusters, Scheduling in Oozie Using Cron-like Syntax, Installing Apache Phoenix using Cloudera Manager, Using Apache Phoenix to Store and Access Data, Orchestrating SQL and APIs with Apache Phoenix, Creating and Using User-Defined Functions (UDFs) in Phoenix, Mapping Phoenix Schemas to HBase Namespaces, Associating Tables of a Schema to a Namespace, Understanding Apache Phoenix-Spark Connector, Understanding Apache Phoenix-Hive Connector, Using MapReduce Batch Indexing to Index Sample Tweets, Near Real Time (NRT) Indexing Tweets Using Flume, Using Search through a Proxy for High Availability, Enable Kerberos Authentication in Cloudera Search, Flume MorphlineSolrSink Configuration Options, Flume MorphlineInterceptor Configuration Options, Flume Solr UUIDInterceptor Configuration Options, Flume Solr BlobHandler Configuration Options, Flume Solr BlobDeserializer Configuration Options, Solr Query Returns no Documents when Executed with a Non-Privileged User, Installing and Upgrading the Sentry Service, Configuring Sentry Authorization for Cloudera Search, Synchronizing HDFS ACLs and Sentry Permissions, Authorization Privilege Model for Hive and Impala, Authorization Privilege Model for Cloudera Search, Frequently Asked Questions about Apache Spark in CDH, Developing and Running a Spark WordCount Application, Accessing Data Stored in Amazon S3 through Spark, Accessing Data Stored in Azure Data Lake Store (ADLS) through Spark, Accessing Avro Data Files From Spark SQL Applications, Accessing Parquet Files From Spark SQL Applications, Building and Running a Crunch Application with Spark, Best Practices for Using MSCK REPAIR TABLE, Tuning Apache Hive Performance on the Amazon S3 Filesystem in CDH, Tuning Hive MSCK (Metastore Check) Performance on S3, In Cloudera Manager, from the home page, go to.