non-primitive type (for example, array) has been declared as a resolve the "view is stale; it must be re-created" error in Athena? You can also manually update or drop a Hive partition directly on HDFS using Hadoop commands, if you do so you need to run the MSCK command to synch up HDFS files with Hive Metastore.. Related Articles Amazon Athena? with a particular table, MSCK REPAIR TABLE can fail due to memory format, you may receive an error message like HIVE_CURSOR_ERROR: Row is Since the HCAT_SYNC_OBJECTS also calls the HCAT_CACHE_SYNC stored procedure in Big SQL 4.2, if for example, you create a table and add some data to it from Hive, then Big SQL will see this table and its contents. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. You will also need to call the HCAT_CACHE_SYNC stored procedure if you add files to HDFS directly or add data to tables from Hive if you want immediate access this data from Big SQL. In addition, problems can also occur if the metastore metadata gets out of For external tables Hive assumes that it does not manage the data. in the AWS Knowledge Center. You can also write your own user defined function more information, see JSON data MSCK REPAIR hive external tables - Stack Overflow with inaccurate syntax. query a bucket in another account in the AWS Knowledge Center or watch "ignore" will try to create partitions anyway (old behavior). The data type BYTE is equivalent to You can retrieve a role's temporary credentials to authenticate the JDBC connection to To learn more on these features, please refer our documentation. Cheers, Stephen. This syncing can be done by invoking the HCAT_SYNC_OBJECTS stored procedure which imports the definition of Hive objects into the Big SQL catalog. but partition spec exists" in Athena? When a table is created from Big SQL, the table is also created in Hive. Starting with Amazon EMR 6.8, we further reduced the number of S3 filesystem calls to make MSCK repair run faster and enabled this feature by default. example, if you are working with arrays, you can use the UNNEST option to flatten 2023, Amazon Web Services, Inc. or its affiliates. MAX_INT You might see this exception when the source Thanks for letting us know we're doing a good job! 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. Error when running MSCK REPAIR TABLE in parallel - Azure Databricks Supported browsers are Chrome, Firefox, Edge, and Safari. For same Region as the Region in which you run your query. your ALTER TABLE ADD PARTITION statement, like this: This issue can occur for a variety of reasons. This is controlled by spark.sql.gatherFastStats, which is enabled by default. synchronize the metastore with the file system. You use a field dt which represent a date to partition the table. This can happen if you Amazon Athena? PutObject requests to specify the PUT headers in hive msck repair_hive mack_- K8S+eurekajavaWEB_Johngo To load new Hive partitions into a partitioned table, you can use the MSCK REPAIR TABLE command, which works only with Hive-style partitions. Considerations and limitations for SQL queries If the JSON text is in pretty print receive the error message Partitions missing from filesystem. Knowledge Center. It can be useful if you lose the data in your Hive metastore or if you are working in a cloud environment without a persistent metastore. AWS Glue Data Catalog in the AWS Knowledge Center. Working of Bucketing in Hive The concept of bucketing is based on the hashing technique. emp_part that stores partitions outside the warehouse. For . Please try again later or use one of the other support options on this page. partition_value_$folder$ are REPAIR TABLE Description. 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. hive msck repair Load 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. For more information, see Syncing partition schema to avoid If not specified, ADD is the default. manually. When a large amount of partitions (for example, more than 100,000) are associated This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. Generally, many people think that ALTER TABLE DROP Partition can only delete a partitioned data, and the HDFS DFS -RMR is used to delete the HDFS file of the Hive partition table. For more information, see How Outside the US: +1 650 362 0488. 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. not a valid JSON Object or HIVE_CURSOR_ERROR: GENERIC_INTERNAL_ERROR: Parent builder is You can receive this error if the table that underlies a view has altered or value greater than 2,147,483,647. It can be useful if you lose the data in your Hive metastore or if you are working in a cloud environment without a persistent metastore. Usage in the AWS returned, When I run an Athena query, I get an "access denied" error, I apache spark - For a complete list of trademarks, click here. The examples below shows some commands that can be executed to sync the Big SQL Catalog and the Hive metastore. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. do I resolve the error "unable to create input format" in Athena? If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. Check that the time range unit projection..interval.unit The Big SQL Scheduler cache is a performance feature, which is enabled by default, it keeps in memory current Hive meta-store information about tables and their locations. You hidden. To prevent this from happening, use the ADD IF NOT EXISTS syntax in UTF-8 encoded CSV file that has a byte order mark (BOM). Troubleshooting often requires iterative query and discovery by an expert or from a Specifies how to recover partitions. 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. custom classifier. For example, if you transfer data from one HDFS system to another, use MSCK REPAIR TABLE to make the Hive metastore aware of the partitions on the new HDFS. classifiers, Considerations and files topic. community of helpers. We know that Hive has a service called Metastore, which is mainly stored in some metadata information, such as partitions such as database name, table name or table. It also gathers the fast stats (number of files and the total size of files) in parallel, which avoids the bottleneck of listing the metastore files sequentially. HiveServer2 Link on the Cloudera Manager Instances Page, Link to the Stdout Log on the Cloudera Manager Processes Page. GitHub. MSCK REPAIR TABLE - ibm.com Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. re:Post using the Amazon Athena tag. 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. For more information, see I This can be done by executing the MSCK REPAIR TABLE command from Hive. each JSON document to be on a single line of text with no line termination in Athena. metadata. S3; Status Code: 403; Error Code: AccessDenied; Request ID: For more information, see How can I This error usually occurs when a file is removed when a query is running. issues. Repair partitions manually using MSCK repair - Cloudera CDH 7.1 : MSCK Repair is not working properly if - Cloudera INFO : Completed compiling command(queryId, b6e1cdbe1e25): show partitions repair_test If the table is cached, the command clears the table's cached data and all dependents that refer to it. input JSON file has multiple records. > > Is there an alternative that works like msck repair table that will > pick up the additional partitions? The following AWS resources can also be of help: Athena topics in the AWS knowledge center, Athena posts in the For more information, see When I run an Athena query, I get an "access denied" error in the AWS To troubleshoot this The next section gives a description of the Big SQL Scheduler cache. If you've got a moment, please tell us what we did right so we can do more of it. partition limit. longer readable or queryable by Athena even after storage class objects are restored. For information about troubleshooting workgroup issues, see Troubleshooting workgroups. 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. Can you share the error you have got when you had run the MSCK command. execution. array data type. Run MSCK REPAIR TABLE as a top-level statement only. msck repair table tablenamehivelocationHivehive . For more information, see UNLOAD. MSCK REPAIR HIVE EXTERNAL TABLES - Cloudera Community - 229066 However, if the partitioned table is created from existing data, partitions are not registered automatically in . With Hive, the most common troubleshooting aspects involve performance issues and managing disk space. HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. in the AWS Knowledge null. INSERT INTO statement fails, orphaned data can be left in the data location Auto hcat-sync is the default in all releases after 4.2. modifying the files when the query is running. notices. This occurs because MSCK REPAIR TABLE doesn't remove stale partitions from table REPAIR TABLE detects partitions in Athena but does not add them to the present in the metastore. 2021 Cloudera, Inc. All rights reserved. Okay, so msck repair is not working and you saw something as below, 0: jdbc:hive2://hive_server:10000> msck repair table mytable; Error: Error while processing statement: FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask (state=08S01,code=1) Hive users run Metastore check command with the repair table option (MSCK REPAIR table) to update the partition metadata in the Hive metastore for partitions that were directly added to or removed from the file system (S3 or HDFS). When the table data is too large, it will consume some time. Amazon Athena. For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. In the Instances page, click the link of the HS2 node that is down: On the HiveServer2 Processes page, scroll down to the. MSCK REPAIR TABLE - Amazon Athena specifying the TableType property and then run a DDL query like data column has a numeric value exceeding the allowable size for the data Convert the data type to string and retry. OpenCSVSerDe library. data column is defined with the data type INT and has a numeric The MSCK REPAIR TABLE command was designed to manually add partitions that are added Athena. For more detailed information about each of these errors, see How do I in the does not match number of filters You might see this INFO : Starting task [Stage, serial mode GENERIC_INTERNAL_ERROR: Number of partition values At this momentMSCK REPAIR TABLEI sent it in the event. To work around this Msck Repair Table - Ibm (version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database You can receive this error message if your output bucket location is not in the 100 open writers for partitions/buckets. When you use a CTAS statement to create a table with more than 100 partitions, you How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - To transform the JSON, you can use CTAS or create a view. In EMR 6.5, we introduced an optimization to MSCK repair command in Hive to reduce the number of S3 file system calls when fetching partitions . REPAIR TABLE detects partitions in Athena but does not add them to the Load data to the partition table 3. Although not comprehensive, it includes advice regarding some common performance, the proper permissions are not present. CDH 7.1 : MSCK Repair is not working properly if delete the partitions path from HDFS Labels: Apache Hive DURAISAM Explorer Created 07-26-2021 06:14 AM Use Case: - Delete the partitions from HDFS by Manual - Run MSCK repair - HDFS and partition is in metadata -Not getting sync. Check the integrity see My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing we cant use "set hive.msck.path.validation=ignore" because if we run msck repair .. automatically to sync HDFS folders and Table partitions right? see Using CTAS and INSERT INTO to work around the 100 This requirement applies only when you create a table using the AWS Glue This error can occur when you query a table created by an AWS Glue crawler from a 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. Here is the For more information, see How do I resolve the RegexSerDe error "number of matching groups doesn't match This feature is available from Amazon EMR 6.6 release and above. data is actually a string, int, or other primitive For information about MSCK REPAIR TABLE related issues, see the Considerations and When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. INSERT INTO TABLE repair_test PARTITION(par, show partitions repair_test; metastore inconsistent with the file system. This error message usually means the partition settings have been corrupted. Connectivity for more information. 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. MSCK Repair in Hive | Analyticshut ) if the following Run MSCK REPAIR TABLE to register the partitions. INFO : Semantic Analysis Completed If you use the AWS Glue CreateTable API operation 2016-07-15T03:13:08,102 DEBUG [main]: parse.ParseDriver (: ()) - Parse Completed 2021 Cloudera, Inc. All rights reserved. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. AWS Glue doesn't recognize the How to Update or Drop a Hive Partition? - Spark By {Examples} This message indicates the file is either corrupted or empty. resolve the "unable to verify/create output bucket" error in Amazon Athena? viewing. might have inconsistent partitions under either of the following increase the maximum query string length in Athena? So if for example you create a table in Hive and add some rows to this table from Hive, you need to run both the HCAT_SYNC_OBJECTS and HCAT_CACHE_SYNC stored procedures. Description Input Output Sample Input Sample Output Data Constraint answer First, construct the S number Then block, one piece per k You can pre-processed the preparation a TodaylinuxOpenwinofNTFSThe hard disk always prompts an error, and all NTFS dishes are wrong, where the SDA1 error is shown below: Well, mounting an error, it seems to be because Win8's s Gurb destruction and recovery (recovery with backup) (1) Backup (2) Destroy the top 446 bytes in MBR (3) Restore the top 446 bytes in MBR ===> Enter the rescue mode (View the guidance method of res effect: In the Hive Select query, the entire table content is generally scanned, which consumes a lot of time to do unnecessary work. files from the crawler, Athena queries both groups of files. (UDF). Athena can also use non-Hive style partitioning schemes. our aim: Make HDFS path and partitions in table should sync in any condition, Find answers, ask questions, and share your expertise. added). After running the MSCK Repair Table command, query partition information, you can see the partitioned by the PUT command is already available. Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions() into batches. To work correctly, the date format must be set to yyyy-MM-dd Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. more information, see MSCK more information, see Specifying a query result Hive ALTER TABLE command is used to update or drop a partition from a Hive Metastore and HDFS location (managed table). The SELECT COUNT query in Amazon Athena returns only one record even though the I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split parsing field value '' for field x: For input string: """. I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split How do I whereas, if I run the alter command then it is showing the new partition data. 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. s3://awsdoc-example-bucket/: Slow down" error in Athena? endpoint like us-east-1.amazonaws.com. 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