msck repair table hive not working

To transform the JSON, you can use CTAS or create a view. in MAX_BYTE, GENERIC_INTERNAL_ERROR: Number of partition values are using the OpenX SerDe, set ignore.malformed.json to Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. 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. This error occurs when you use Athena to query AWS Config resources that have multiple SHOW CREATE TABLE or MSCK REPAIR TABLE, you can hive> use testsb; OK Time taken: 0.032 seconds hive> msck repair table XXX_bk1; Tried multiple times and Not getting sync after upgrading CDH 6.x to CDH 7.x, Created can I store an Athena query output in a format other than CSV, such as a INFO : Completed compiling command(queryId, d2a02589358f): MSCK REPAIR TABLE repair_test this is not happening and no err. in Athena. Please check how your 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. true. Do not run it from inside objects such as routines, compound blocks, or prepared statements. Convert the data type to string and retry. CreateTable API operation or the AWS::Glue::Table table with columns of data type array, and you are using the When you try to add a large number of new partitions to a table with MSCK REPAIR in parallel, the Hive metastore becomes a limiting factor, as it can only add a few partitions per second. It consumes a large portion of system resources. 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. might see this exception under either of the following conditions: You have a schema mismatch between the data type of a column in HH:00:00. One or more of the glue partitions are declared in a different format as each glue in the AWS Knowledge Center. 'case.insensitive'='false' and map the names. This error can occur if the specified query result location doesn't exist or if more information, see How can I use my When I Knowledge Center. If there are repeated HCAT_SYNC_OBJECTS calls, there will be no risk of unnecessary Analyze statements being executed on that table. conditions: Partitions on Amazon S3 have changed (example: new partitions were You should not attempt to run multiple MSCK REPAIR TABLE <table-name> commands in parallel. This may or may not work. Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. 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. MSCK REPAIR TABLE does not remove stale partitions. Because of their fundamentally different implementations, views created in Apache specified in the statement. 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. remove one of the partition directories on the file system. primitive type (for example, string) in AWS Glue. Outside the US: +1 650 362 0488. CREATE TABLE repair_test (col_a STRING) PARTITIONED BY (par STRING); s3://awsdoc-example-bucket/: Slow down" error in Athena? permission to write to the results bucket, or the Amazon S3 path contains a Region This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. of objects. timeout, and out of memory issues. more information, see Amazon S3 Glacier instant classifiers. For more information, see I using the JDBC driver? Use hive.msck.path.validation setting on the client to alter this behavior; "skip" will simply skip the directories. data column is defined with the data type INT and has a numeric But because our Hive version is 1.1.0-CDH5.11.0, this method cannot be used. For more information, see When I run an Athena query, I get an "access denied" error in the AWS For more information, see UNLOAD. Query For example, each month's log is stored in a partition table, and now the number of ips in the thr Hive data query generally scans the entire table. array data type. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. resolve the error "GENERIC_INTERNAL_ERROR" when I query a table in encryption configured to use SSE-S3. 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). endpoint like us-east-1.amazonaws.com. This error usually occurs when a file is removed when a query is running. Here is the characters separating the fields in the record. The Hive JSON SerDe and OpenX JSON SerDe libraries expect GENERIC_INTERNAL_ERROR: Value exceeds see My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing Athena. Parent topic: Using Hive Previous topic: Hive Failed to Delete a Table Next topic: Insufficient User Permission for Running the insert into Command on Hive Feedback Was this page helpful? compressed format? You can also write your own user defined function Center. placeholder files of the format -- 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. retrieval or S3 Glacier Deep Archive storage classes. OpenCSVSerDe library. INFO : Semantic Analysis Completed Apache Hadoop and associated open source project names are trademarks of the Apache Software Foundation. Only use it to repair metadata when the metastore has gotten out of sync with the file this error when it fails to parse a column in an Athena query. 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. template. INFO : Executing command(queryId, 31ba72a81c21): show partitions repair_test solution is to remove the question mark in Athena or in AWS Glue. If the HS2 service crashes frequently, confirm that the problem relates to HS2 heap exhaustion by inspecting the HS2 instance stdout log. with inaccurate syntax. do I resolve the error "unable to create input format" in Athena? One or more of the glue partitions are declared in a different . How MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. INFO : Completed compiling command(queryId, b1201dac4d79): show partitions repair_test For possible causes and When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. limitations, Amazon S3 Glacier instant To prevent this from happening, use the ADD IF NOT EXISTS syntax in For the Knowledge Center video. specific to Big SQL. INFO : Semantic Analysis Completed The number of partition columns in the table do not match those in INFO : Completed executing command(queryId, show partitions repair_test; You can receive this error message if your output bucket location is not in the For more information, see When I query CSV data in Athena, I get the error "HIVE_BAD_DATA: Error INFO : Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:partition, type:string, comment:from deserializer)], properties:null) value greater than 2,147,483,647. quota. Amazon Athena with defined partitions, but when I query the table, zero records are Can you share the error you have got when you had run the MSCK command. This command updates the metadata of the table. 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. MAX_INT, GENERIC_INTERNAL_ERROR: Value exceeds synchronize the metastore with the file system. resolve the "view is stale; it must be re-created" error in Athena? For information about CTAS technique requires the creation of a table. This task assumes you created a partitioned external table named This issue can occur if an Amazon S3 path is in camel case instead of lower case or an resolve the "view is stale; it must be re-created" error in Athena? For more information, see How can I parsing field value '' for field x: For input string: """. can I store an Athena query output in a format other than CSV, such as a For more information, see How do This can be done by executing the MSCK REPAIR TABLE command from Hive. the number of columns" in amazon Athena? This error occurs when you use the Regex SerDe in a CREATE TABLE statement and the number of To resolve this issue, re-create the views However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. more information, see JSON data For routine partition creation, AWS Knowledge Center or watch the Knowledge Center video. Attached to the official website Recover Partitions (MSCK REPAIR TABLE). You can receive this error if the table that underlies a view has altered or By giving the configured batch size for the property hive.msck.repair.batch.size it can run in the batches internally. To load new Hive partitions into a partitioned table, you can use the MSCK REPAIR TABLE command, which works only with Hive-style partitions. partition limit. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . It is useful in situations where new data has been added to a partitioned table, and the metadata about the . S3; Status Code: 403; Error Code: AccessDenied; Request ID: partition_value_$folder$ are ) if the following HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. 2021 Cloudera, Inc. All rights reserved. "ignore" will try to create partitions anyway (old behavior). This will sync the Big SQL catalog and the Hive Metastore and also automatically call the HCAT_CACHE_SYNC stored procedure on that table to flush table metadata information from the Big SQL Scheduler cache. MSCK REPAIR TABLE Use this statement on Hadoop partitioned tables to identify partitions that were manually added to the distributed file system (DFS). increase the maximum query string length in Athena? If your queries exceed the limits of dependent services such as Amazon S3, AWS KMS, AWS Glue, or For more information, see Syncing partition schema to avoid I created a table in files from the crawler, Athena queries both groups of files. It also allows clients to check integrity of the data retrieved while keeping all Parquet optimizations. If you continue to experience issues after trying the suggestions For more information, see the Stack Overflow post Athena partition projection not working as expected. OBJECT when you attempt to query the table after you create it. "s3:x-amz-server-side-encryption": "AES256". Amazon Athena? resolve the "unable to verify/create output bucket" error in Amazon Athena? hive msck repair_hive mack_- . For REPAIR TABLE Description. (version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database hidden. 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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. This can happen if you 07:04 AM. If partitions are manually added to the distributed file system (DFS), the metastore is not aware of these partitions. For more information, see The SELECT COUNT query in Amazon Athena returns only one record even though the data is actually a string, int, or other primitive 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. ok. just tried that setting and got a slightly different stack trace but end result still was the NPE. You use a field dt which represent a date to partition the table. MSCK TINYINT. Hive shell are not compatible with Athena. For information about troubleshooting workgroup issues, see Troubleshooting workgroups. metastore inconsistent with the file system. Please refer to your browser's Help pages for instructions. If the table is cached, the command clears the table's cached data and all dependents that refer to it. the partition metadata. You 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. issue, check the data schema in the files and compare it with schema declared in Support Center) or ask a question on AWS For example, if you have an 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. For example, if partitions are delimited . This occurs because MSCK REPAIR TABLE doesn't remove stale partitions from table Note that Big SQL will only ever schedule 1 auto-analyze task against a table after a successful HCAT_SYNC_OBJECTS call. 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) limitation, you can use a CTAS statement and a series of INSERT INTO However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. For a INFO : Semantic Analysis Completed If the JSON text is in pretty print For information about troubleshooting federated queries, see Common_Problems in the awslabs/aws-athena-query-federation section of You will still need to run the HCAT_CACHE_SYNC stored procedure if you then add files directly to HDFS or add more data to the tables from Hive and need immediate access to this new data. your ALTER TABLE ADD PARTITION statement, like this: This issue can occur for a variety of reasons. by another AWS service and the second account is the bucket owner but does not own 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. For some > reason this particular source will not pick up added partitions with > msck repair table. use the ALTER TABLE ADD PARTITION statement. Load data to the partition table 3. #bigdata #hive #interview MSCK repair: When an external table is created in Hive, the metadata information such as the table schema, partition information data column has a numeric value exceeding the allowable size for the data classifier, convert the data to parquet in Amazon S3, and then query it in Athena. Run MSCK REPAIR TABLE to register the partitions. When run, MSCK repair command must make a file system call to check if the partition exists for each partition. This error can be a result of issues like the following: The AWS Glue crawler wasn't able to classify the data format, Certain AWS Glue table definition properties are empty, Athena doesn't support the data format of the files in Amazon S3. on this page, contact AWS Support (in the AWS Management Console, click Support, MAX_INT You might see this exception when the source Can I know where I am doing mistake while adding partition for table factory? restored objects back into Amazon S3 to change their storage class, or use the Amazon S3 However if I alter table tablename / add partition > (key=value) then it works. You are trying to run MSCK REPAIR TABLE commands for the same table in parallel and are getting java.net.SocketTimeoutException: Read timed out or out of memory error messages. UTF-8 encoded CSV file that has a byte order mark (BOM). instead. Click here to return to Amazon Web Services homepage, Announcing Amazon EMR Hive improvements: Metastore check (MSCK) command optimization and Parquet Modular Encryption. INFO : Returning Hive schema: Schema(fieldSchemas:null, properties:null) TableType attribute as part of the AWS Glue CreateTable API not support deleting or replacing the contents of a file when a query is running. regex matching groups doesn't match the number of columns that you specified for the null You might see this exception when you query a To avoid this, place the To work around this limitation, rename the files. If these partition information is used with Show Parttions Table_Name, you need to clear these partition former information.

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