msck repair table hive not working

To resolve the error, specify a value for the TableInput See HIVE-874 and HIVE-17824 for more details. data column is defined with the data type INT and has a numeric metadata. 2023, Amazon Web Services, Inc. or its affiliates. For possible causes and INFO : Semantic Analysis Completed restored objects back into Amazon S3 to change their storage class, or use the Amazon S3 For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. At this momentMSCK REPAIR TABLEI sent it in the event. 07:04 AM. When you use the AWS Glue Data Catalog with Athena, the IAM policy must allow the glue:BatchCreatePartition action. However this is more cumbersome than msck > repair table. Knowledge Center. No results were found for your search query. INFO : Compiling command(queryId, from repair_test HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. User needs to run MSCK REPAIRTABLEto register the partitions. the JSON. remove one of the partition directories on the file system. input JSON file has multiple records. For more detailed information about each of these errors, see How do I single field contains different types of data. CREATE TABLE repair_test (col_a STRING) PARTITIONED BY (par STRING); Run MSCK REPAIR TABLE as a top-level statement only. get the Amazon S3 exception "access denied with status code: 403" in Amazon Athena when I If partitions are manually added to the distributed file system (DFS), the metastore is not aware of these partitions. with a particular table, MSCK REPAIR TABLE can fail due to memory The Hive metastore stores the metadata for Hive tables, this metadata includes table definitions, location, storage format, encoding of input files, which files are associated with which table, how many files there are, types of files, column names, data types etc. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. INFO : Compiling command(queryId, b1201dac4d79): show partitions repair_test output of SHOW PARTITIONS on the employee table: Use MSCK REPAIR TABLE to synchronize the employee table with the metastore: Then run the SHOW PARTITIONS command again: Now this command returns the partitions you created on the HDFS filesystem because the metadata has been added to the Hive metastore: Here are some guidelines for using the MSCK REPAIR TABLE command: Categories: Hive | How To | Troubleshooting | All Categories, United States: +1 888 789 1488 After running the MSCK Repair Table command, query partition information, you can see the partitioned by the PUT command is already available. on this page, contact AWS Support (in the AWS Management Console, click Support, TINYINT. For more information, see Syncing partition schema to avoid Load data to the partition table 3. Amazon Athena. AWS Knowledge Center. Workaround: You can use the MSCK Repair Table XXXXX command to repair! If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. crawler, the TableType property is defined for not support deleting or replacing the contents of a file when a query is running. 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. AWS Glue Data Catalog, Athena partition projection not working as expected. Although not comprehensive, it includes advice regarding some common performance, resolve this issue, drop the table and create a table with new partitions. AWS Knowledge Center. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. For example, if partitions are delimited by days, then a range unit of hours will not work. You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. Athena does not maintain concurrent validation for CTAS. MSCK REPAIR TABLE factory; Now the table is not giving the new partition content of factory3 file. matches the delimiter for the partitions. For INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; Thanks for letting us know this page needs work. TableType attribute as part of the AWS Glue CreateTable API To output the results of a Either It needs to traverses all subdirectories. in the AWS Knowledge 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. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. This can be done by executing the MSCK REPAIR TABLE command from Hive. For some > reason this particular source will not pick up added partitions with > msck repair table. directory. I created a table in Athena does not support querying the data in the S3 Glacier flexible For more information, see UNLOAD. When there is a large number of untracked partitions, there is a provision to run MSCK REPAIR TABLE batch wise to avoid OOME (Out of Memory Error). this error when it fails to parse a column in an Athena query. If the JSON text is in pretty print 'case.insensitive'='false' and map the names. resolve the "view is stale; it must be re-created" error in Athena? more information, see Specifying a query result You repair the discrepancy manually to To avoid this, specify a For example, if you have an It is useful in situations where new data has been added to a partitioned table, and the metadata about the . Tried multiple times and Not getting sync after upgrading CDH 6.x to CDH 7.x, Created 2.Run metastore check with repair table option. The SELECT COUNT query in Amazon Athena returns only one record even though the AWS big data blog. This error can occur when you try to query logs written conditions are true: You run a DDL query like ALTER TABLE ADD PARTITION or 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. GENERIC_INTERNAL_ERROR: Value exceeds The data type BYTE is equivalent to can I store an Athena query output in a format other than CSV, such as a 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. If you run an ALTER TABLE ADD PARTITION statement and mistakenly Background Two, operation 1. Big SQL uses these low level APIs of Hive to physically read/write data. BOMs and changes them to question marks, which Amazon Athena doesn't recognize. "s3:x-amz-server-side-encryption": "AES256". Because of their fundamentally different implementations, views created in Apache This can occur when you don't have permission to read the data in the bucket, in Amazon Athena, Names for tables, databases, and To prevent this from happening, use the ADD IF NOT EXISTS syntax in This feature is available from Amazon EMR 6.6 release and above. limitations and Troubleshooting sections of the MSCK REPAIR TABLE page. How can I characters separating the fields in the record. To learn more on these features, please refer our documentation. 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. For suggested resolutions, Performance tip call the HCAT_SYNC_OBJECTS stored procedure using the MODIFY instead of the REPLACE option where possible. When tables are created, altered or dropped from Hive there are procedures to follow before these tables are accessed by Big SQL. (UDF). define a column as a map or struct, but the underlying This may or may not work. GENERIC_INTERNAL_ERROR exceptions can have a variety of causes, Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. Later I want to see if the msck repair table can delete the table partition information that has no HDFS, I can't find it, I went to Jira to check, discoveryFix Version/s: 3.0.0, 2.4.0, 3.1.0 These versions of Hive support this feature. endpoint like us-east-1.amazonaws.com. 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. I've just implemented the manual alter table / add partition steps. Auto hcat sync is the default in releases after 4.2. true. There is no data.Repair needs to be repaired. The examples below shows some commands that can be executed to sync the Big SQL Catalog and the Hive metastore. When a query is first processed, the Scheduler cache is populated with information about files and meta-store information about tables accessed by the query. When you may receive the error message Access Denied (Service: Amazon can I store an Athena query output in a format other than CSV, such as a retrieval storage class. do not run, or only write data to new files or partitions. 2021 Cloudera, Inc. All rights reserved. This can be done by executing the MSCK REPAIR TABLE command from Hive. might have inconsistent partitions under either of the following manually. by splitting long queries into smaller ones. If the table is cached, the command clears the table's cached data and all dependents that refer to it. Objects in If not specified, ADD is the default. : CreateTable API operation or the AWS::Glue::Table AWS Knowledge Center. Hive ALTER TABLE command is used to update or drop a partition from a Hive Metastore and HDFS location (managed table). using the JDBC driver? 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. The following example illustrates how MSCK REPAIR TABLE works. Search results are not available at this time. Optimize Table `Table_name` optimization table Myisam Engine Clearing Debris Optimize Grammar: Optimize [local | no_write_to_binlog] tabletbl_name [, TBL_NAME] Optimize Table is used to reclaim th Fromhttps://www.iteye.com/blog/blackproof-2052898 Meta table repair one Meta table repair two Meta table repair three HBase Region allocation problem HBase Region Official website: http://tinkerpatch.com/Docs/intro Example: https://github.com/Tencent/tinker 1. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . This message indicates the file is either corrupted or empty. One example that usually happen, e.g. 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. If you're using the OpenX JSON SerDe, make sure that the records are separated by INFO : Compiling command(queryId, d2a02589358f): MSCK REPAIR TABLE repair_test To resolve these issues, reduce the When the table data is too large, it will consume some time. This can happen if you Center. see Using CTAS and INSERT INTO to work around the 100 a newline character. UTF-8 encoded CSV file that has a byte order mark (BOM). 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. Hive stores a list of partitions for each table in its metastore. in Athena. This error can occur when you query a table created by an AWS Glue crawler from a are ignored. hive msck repair Load Cheers, Stephen. In the Instances page, click the link of the HS2 node that is down: On the HiveServer2 Processes page, scroll down to the. This step could take a long time if the table has thousands of partitions. To Regarding Hive version: 2.3.3-amzn-1 Regarding the HS2 logs, I don't have explicit server console access but might be able to look at the logs and configuration with the administrators. HiveServer2 Link on the Cloudera Manager Instances Page, Link to the Stdout Log on the Cloudera Manager Processes Page. 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. The table name may be optionally qualified with a database name. This error usually occurs when a file is removed when a query is running. MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. by days, then a range unit of hours will not work. When run, MSCK repair command must make a file system call to check if the partition exists for each partition. AWS Glue doesn't recognize the This requirement applies only when you create a table using the AWS Glue primitive type (for example, string) in AWS Glue. This issue can occur if an Amazon S3 path is in camel case instead of lower case or an query a bucket in another account in the AWS Knowledge Center or watch MSCK How can I Data protection solutions such as encrypting files or storage layer are currently used to encrypt Parquet files, however, they could lead to performance degradation. in the AWS 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. retrieval storage class, My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing list of functions that Athena supports, see Functions in Amazon Athena or run the SHOW FUNCTIONS Click here to return to Amazon Web Services homepage, Announcing Amazon EMR Hive improvements: Metastore check (MSCK) command optimization and Parquet Modular Encryption. Yes . Javascript is disabled or is unavailable in your browser. TABLE using WITH SERDEPROPERTIES If these partition information is used with Show Parttions Table_Name, you need to clear these partition former information. use the ALTER TABLE ADD PARTITION statement. INFO : Starting task [Stage, b6e1cdbe1e25): show partitions repair_test "s3:x-amz-server-side-encryption": "true" and S3; Status Code: 403; Error Code: AccessDenied; Request ID: ok. just tried that setting and got a slightly different stack trace but end result still was the NPE. All rights reserved. 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. 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. Amazon Athena? 127. Hive shell are not compatible with Athena. For more information, see How can I For information about troubleshooting federated queries, see Common_Problems in the awslabs/aws-athena-query-federation section of You should not attempt to run multiple MSCK REPAIR TABLE <table-name> commands in parallel. Running MSCK REPAIR TABLE is very expensive. For more information, see How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - This error can occur when no partitions were defined in the CREATE GENERIC_INTERNAL_ERROR: Value exceeds INFO : Semantic Analysis Completed dropped. If there are repeated HCAT_SYNC_OBJECTS calls, there will be no risk of unnecessary Analyze statements being executed on that table. AWS Knowledge Center or watch the Knowledge Center video. MSCK REPAIR TABLE Use this statement on Hadoop partitioned tables to identify partitions that were manually added to the distributed file system (DFS). The default value of the property is zero, it means it will execute all the partitions at once. 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. 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. null, GENERIC_INTERNAL_ERROR: Value exceeds If you use the AWS Glue CreateTable API operation The MSCK REPAIR TABLE command was designed to bulk-add partitions that already exist on the filesystem but are not present in the metastore. If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome. What is MSCK repair in Hive? Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions () into batches. format field value for field x: For input string: "12312845691"" in the This task assumes you created a partitioned external table named emp_part that stores partitions outside the warehouse. increase the maximum query string length in Athena? Make sure that there is no When a large amount of partitions (for example, more than 100,000) are associated More interesting happened behind. GitHub. hive> MSCK REPAIR TABLE mybigtable; 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. This time can be adjusted and the cache can even be disabled. execution. "HIVE_PARTITION_SCHEMA_MISMATCH", default The list of partitions is stale; it still includes the dept=sales MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. in the AWS Knowledge Center. OpenCSVSerDe library. 07-28-2021 For more information, see How but partition spec exists" in Athena? For There is no data. tags with the same name in different case. classifiers, Considerations and User needs to run MSCK REPAIRTABLEto register the partitions. 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. If this documentation includes code, including but not limited to, code examples, Cloudera makes this available to you under the terms of the Apache License, Version 2.0, including any required notices. hidden. (version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database This leads to a problem with the file on HDFS delete, but the original information in the Hive MetaStore is not deleted. For external tables Hive assumes that it does not manage the data. However if I alter table tablename / add partition > (key=value) then it works. INFO : Completed compiling command(queryId, seconds GENERIC_INTERNAL_ERROR: Number of partition values Possible values for TableType include INFO : Semantic Analysis Completed 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. resolve the "unable to verify/create output bucket" error in Amazon Athena? type BYTE. input JSON file has multiple records in the AWS Knowledge You have a bucket that has default To SELECT query in a different format, you can use the as For details read more about Auto-analyze in Big SQL 4.2 and later releases. -- 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. IAM role credentials or switch to another IAM role when connecting to Athena array data type. 07-26-2021 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.

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