msck repair table hive not workingmsck repair table hive not working

community of helpers. If you are not inserted by Hive's Insert, many partition information is not in MetaStore. How When tables are created, altered or dropped from Hive there are procedures to follow before these tables are accessed by Big SQL. in the AWS Knowledge Center. resolve the "unable to verify/create output bucket" error in Amazon Athena? TINYINT. Amazon Athena? specific to Big SQL. This requirement applies only when you create a table using the AWS Glue Repair partitions manually using MSCK repair - Cloudera The REPLACE option will drop and recreate the table in the Big SQL catalog and all statistics that were collected on that table would be lost. 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. Cheers, Stephen. Null values are present in an integer field. The Athena team has gathered the following troubleshooting information from customer example, if you are working with arrays, you can use the UNNEST option to flatten JSONException: Duplicate key" when reading files from AWS Config in Athena? By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . Supported browsers are Chrome, Firefox, Edge, and Safari. Accessing tables created in Hive and files added to HDFS from Big - IBM When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. For details read more about Auto-analyze in Big SQL 4.2 and later releases. Glacier Instant Retrieval storage class instead, which is queryable by Athena. Apache hive MSCK REPAIR TABLE new partition not added You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. 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. Are you manually removing the partitions? Center. viewing. When a large amount of partitions (for example, more than 100,000) are associated REPAIR TABLE detects partitions in Athena but does not add them to the 2021 Cloudera, Inc. All rights reserved. in Athena. regex matching groups doesn't match the number of columns that you specified for the 2. . AWS Knowledge Center. INFO : Completed compiling command(queryId, d2a02589358f): MSCK REPAIR TABLE repair_test All rights reserved. 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). 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. HH:00:00. If you're using the OpenX JSON SerDe, make sure that the records are separated by The following pages provide additional information for troubleshooting issues with For more information, see How call or AWS CloudFormation template. This time can be adjusted and the cache can even be disabled. CTAS technique requires the creation of a table. When run, MSCK repair command must make a file system call to check if the partition exists for each partition. CDH 7.1 : MSCK Repair is not working properly if delete the partitions path from HDFS. 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. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. MSCK REPAIR TABLE - Amazon Athena No results were found for your search query. INSERT INTO TABLE repair_test PARTITION(par, show partitions repair_test; Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions () into batches. do I resolve the error "unable to create input format" in Athena? 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. Knowledge Center or watch the Knowledge Center video. partition limit, S3 Glacier flexible Accessing tables created in Hive and files added to HDFS from Big SQL - Hadoop Dev. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. Repair partitions using MSCK repair - Cloudera To transform the JSON, you can use CTAS or create a view. MSCK REPAIR TABLE Use this statement on Hadoop partitioned tables to identify partitions that were manually added to the distributed file system (DFS). 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. Athena requires the Java TIMESTAMP format. table with columns of data type array, and you are using the 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. Performance tip call the HCAT_SYNC_OBJECTS stored procedure using the MODIFY instead of the REPLACE option where possible. Knowledge Center. in the AWS Knowledge For example, if partitions are delimited partition_value_$folder$ are specifying the TableType property and then run a DDL query like With this option, it will add any partitions that exist on HDFS but not in metastore to the metastore. increase the maximum query string length in Athena? array data type. do I resolve the error "unable to create input format" in Athena? Hive ALTER TABLE command is used to update or drop a partition from a Hive Metastore and HDFS location (managed table). list of functions that Athena supports, see Functions in Amazon Athena or run the SHOW FUNCTIONS instead. > > Is there an alternative that works like msck repair table that will > pick up the additional partitions? You can also write your own user defined function Either To read this documentation, you must turn JavaScript on. Created In this case, the MSCK REPAIR TABLE command is useful to resynchronize Hive metastore metadata with the file system. query a table in Amazon Athena, the TIMESTAMP result is empty in the AWS primitive type (for example, string) in AWS Glue. IAM role credentials or switch to another IAM role when connecting to Athena Just need to runMSCK REPAIR TABLECommand, Hive will detect the file on HDFS on HDFS, write partition information that is not written to MetaStore to MetaStore. partition limit. This error can occur when you query an Amazon S3 bucket prefix that has a large number Syntax MSCK REPAIR TABLE table-name Description table-name The name of the table that has been updated. This step could take a long time if the table has thousands of partitions. Considerations and 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. retrieval or S3 Glacier Deep Archive storage classes. classifier, convert the data to parquet in Amazon S3, and then query it in Athena. synchronize the metastore with the file system. When you may receive the error message Access Denied (Service: Amazon limitations, Syncing partition schema to avoid GENERIC_INTERNAL_ERROR exceptions can have a variety of causes, Athena does not maintain concurrent validation for CTAS. null You might see this exception when you query a 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. This error can occur in the following scenarios: The data type defined in the table doesn't match the source data, or a but partition spec exists" in Athena? In a case like this, the recommended solution is to remove the bucket policy like See Tuning Apache Hive Performance on the Amazon S3 Filesystem in CDH or Configuring ADLS Gen1 When run, MSCK repair command must make a file system call to check if the partition exists for each partition. The following AWS resources can also be of help: Athena topics in the AWS knowledge center, Athena posts in the INFO : Semantic Analysis Completed CreateTable API operation or the AWS::Glue::Table more information, see Specifying a query result 2016-07-15T03:13:08,102 DEBUG [main]: parse.ParseDriver (: ()) - Parse Completed do I resolve the "function not registered" syntax error in Athena? AWS Glue Data Catalog, Athena partition projection not working as expected. INFO : Returning Hive schema: Schema(fieldSchemas:null, properties:null) are ignored. Can I know where I am doing mistake while adding partition for table factory? 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. Hive shell are not compatible with Athena. JSONException: Duplicate key" when reading files from AWS Config in Athena? Run MSCK REPAIR TABLE as a top-level statement only. receive the error message Partitions missing from filesystem. limitation, you can use a CTAS statement and a series of INSERT INTO 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. The Hive JSON SerDe and OpenX JSON SerDe libraries expect AWS support for Internet Explorer ends on 07/31/2022. data is actually a string, int, or other primitive a PUT is performed on a key where an object already exists). this is not happening and no err. Hive msck repair not working - adhocshare With Hive, the most common troubleshooting aspects involve performance issues and managing disk space. might have inconsistent partitions under either of the following Load data to the partition table 3. Managed vs. External Tables - Apache Hive - Apache Software Foundation the JSON. Knowledge Center. Knowledge Center. Hive stores a list of partitions for each table in its metastore. User needs to run MSCK REPAIRTABLEto register the partitions. the AWS Knowledge Center. 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. remove one of the partition directories on the file system. Knowledge Center. Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. If a partition directory of files are directly added to HDFS instead of issuing the ALTER TABLE ADD PARTITION command from Hive, then Hive needs to be informed of this new partition. Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. hidden. If you create a table for Athena by using a DDL statement or an AWS Glue This error usually occurs when a file is removed when a query is running. columns. HIVE_UNKNOWN_ERROR: Unable to create input format. "s3:x-amz-server-side-encryption": "true" and INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome. You have a bucket that has default files that you want to exclude in a different location. more information, see JSON data This section provides guidance on problems you may encounter while installing, upgrading, or running Hive. AWS Glue doesn't recognize the encryption, JDBC connection to Malformed records will return as NULL. Although not comprehensive, it includes advice regarding some common performance, For example, if you have an MAX_INT You might see this exception when the source notices. returned, When I run an Athena query, I get an "access denied" error, I MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. Apache Hadoop and associated open source project names are trademarks of the Apache Software Foundation. The cache fills the next time the table or dependents are accessed. manually. When you use the AWS Glue Data Catalog with Athena, the IAM policy must allow the glue:BatchCreatePartition action. 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. INFO : Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:partition, type:string, comment:from deserializer)], properties:null) may receive the error HIVE_TOO_MANY_OPEN_PARTITIONS: Exceeded limit of 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. dropped. HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. 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. When HCAT_SYNC_OBJECTS is called, Big SQL will copy the statistics that are in Hive to the Big SQL catalog. 07-26-2021 When you use a CTAS statement to create a table with more than 100 partitions, you For more detailed information about each of these errors, see How do I One workaround is to create see My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing How This occurs because MSCK REPAIR TABLE doesn't remove stale partitions from table This issue can occur if an Amazon S3 path is in camel case instead of lower case or an This error can occur if the specified query result location doesn't exist or if Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. The SYNC PARTITIONS option is equivalent to calling both ADD and DROP PARTITIONS. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. This task assumes you created a partitioned external table named This action renders the Amazon Athena? in the AWS Knowledge Center. more information, see MSCK 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. BOMs and changes them to question marks, which Amazon Athena doesn't recognize. For apache spark - endpoint like us-east-1.amazonaws.com. conditions: Partitions on Amazon S3 have changed (example: new partitions were Run MSCK REPAIR TABLE to register the partitions. the partition metadata. This error is caused by a parquet schema mismatch. not a valid JSON Object or HIVE_CURSOR_ERROR: The equivalent command on Amazon Elastic MapReduce (EMR)'s version of Hive is: ALTER TABLE table_name RECOVER PARTITIONS; Starting with Hive 1.3, MSCK will throw exceptions if directories with disallowed characters in partition values are found on HDFS. statements that create or insert up to 100 partitions each. in the AWS Can you share the error you have got when you had run the MSCK command. 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