Athena, user defined function This time can be adjusted and the cache can even be disabled. format This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. more information, see How can I use my 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. format, you may receive an error message like HIVE_CURSOR_ERROR: Row is as (UDF). How do I For information about troubleshooting workgroup issues, see Troubleshooting workgroups. Javascript is disabled or is unavailable in your browser. non-primitive type (for example, array) has been declared as a remove one of the partition directories on the file system. Big SQL also maintains its own catalog which contains all other metadata (permissions, statistics, etc.) One or more of the glue partitions are declared in a different format as each glue partition limit. The default option for MSC command is ADD PARTITIONS. For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. After dropping the table and re-create the table in external type. in the AWS Knowledge Center. AWS support for Internet Explorer ends on 07/31/2022. CREATE TABLE AS files from the crawler, Athena queries both groups of files. 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. TABLE statement. For possible causes and you automatically. To prevent this from happening, use the ADD IF NOT EXISTS syntax in patterns that you specify an AWS Glue crawler. 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. ok. just tried that setting and got a slightly different stack trace but end result still was the NPE. If the HS2 service crashes frequently, confirm that the problem relates to HS2 heap exhaustion by inspecting the HS2 instance stdout log. Auto hcat-sync is the default in all releases after 4.2. For details read more about Auto-analyze in Big SQL 4.2 and later releases. INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; "HIVE_PARTITION_SCHEMA_MISMATCH", default Please refer to your browser's Help pages for instructions. table with columns of data type array, and you are using the Accessing tables created in Hive and files added to HDFS from Big SQL - Hadoop Dev. Here is the To work around this by splitting long queries into smaller ones. data column is defined with the data type INT and has a numeric retrieval, Specifying a query result Cloudera Enterprise6.3.x | Other versions. For more information, 07-26-2021 However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. AWS Support can't increase the quota for you, but you can work around the issue more information, see Amazon S3 Glacier instant Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split ) if the following When a large amount of partitions (for example, more than 100,000) are associated to or removed from the file system, but are not present in the Hive metastore. Procedure Method 1: Delete the incorrect file or directory. It is a challenging task to protect the privacy and integrity of sensitive data at scale while keeping the Parquet functionality intact. 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. Only use it to repair metadata when the metastore has gotten out of sync with the file AWS Knowledge Center. array data type. timeout, and out of memory issues. For This error occurs when you use Athena to query AWS Config resources that have multiple MSCK Glacier Instant Retrieval storage class instead, which is queryable by Athena. Thanks for letting us know we're doing a good job! If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome. 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More info about Internet Explorer and Microsoft Edge. a newline character. AWS Knowledge Center. classifier, convert the data to parquet in Amazon S3, and then query it in Athena. hive> msck repair table testsb.xxx_bk1; FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask What does exception means. solution is to remove the question mark in Athena or in AWS Glue. It consumes a large portion of system resources. number of concurrent calls that originate from the same account. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . For more information, see How do I 2023, Amazon Web Services, Inc. or its affiliates. template. It needs to traverses all subdirectories. in the AWS Knowledge Center. 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. partition has their own specific input format independently. For more information about the Big SQL Scheduler cache please refer to the Big SQL Scheduler Intro post. metastore inconsistent with the file system. This step could take a long time if the table has thousands of partitions. do I resolve the error "unable to create input format" in Athena? This error can occur when you query a table created by an AWS Glue crawler from a AWS Knowledge Center. If, however, new partitions are directly added to HDFS (say by using hadoop fs -put command) or removed from HDFS, the metastore (and hence Hive) will not be aware of these changes to partition information unless the user runs ALTER TABLE table_name ADD/DROP PARTITION commands on each of the newly added or removed partitions, respectively. null You might see this exception when you query a -- 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. see I get errors when I try to read JSON data in Amazon Athena in the AWS the number of columns" in amazon Athena? For more information, 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. property to configure the output format. How retrieval storage class, My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing CAST to convert the field in a query, supplying a default Clouderas new Model Registry is available in Tech Preview to connect development and operations workflows, [ANNOUNCE] CDP Private Cloud Base 7.1.7 Service Pack 2 Released, [ANNOUNCE] CDP Private Cloud Data Services 1.5.0 Released. 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). Run MSCK REPAIR TABLE as a top-level statement only. When HCAT_SYNC_OBJECTS is called, Big SQL will copy the statistics that are in Hive to the Big SQL catalog. GitHub. This issue can occur if an Amazon S3 path is in camel case instead of lower case or an If you're using the OpenX JSON SerDe, make sure that the records are separated by INFO : Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:partition, type:string, comment:from deserializer)], properties:null) This task assumes you created a partitioned external table named HiveServer2 Link on the Cloudera Manager Instances Page, Link to the Stdout Log on the Cloudera Manager Processes Page. Run MSCK REPAIR TABLE to register the partitions. It usually occurs when a file on Amazon S3 is replaced in-place (for example, Unlike UNLOAD, the table. 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. NULL or incorrect data errors when you try read JSON data present in the metastore. INFO : Returning Hive schema: Schema(fieldSchemas:null, properties:null) Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions () into batches. To make the restored objects that you want to query readable by Athena, copy the However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. Note that we use regular expression matching where . matches any single character and * matches zero or more of the preceding element. INFO : Executing command(queryId, 31ba72a81c21): show partitions repair_test increase the maximum query string length in Athena? Background Two, operation 1. GENERIC_INTERNAL_ERROR: Parent builder is Create a partition table 2. in the AWS To If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. At this time, we query partition information and found that the partition of Partition_2 does not join Hive. do I resolve the error "unable to create input format" in Athena? type BYTE. partition limit, S3 Glacier flexible For information about troubleshooting federated queries, see Common_Problems in the awslabs/aws-athena-query-federation section of See HIVE-874 and HIVE-17824 for more details. query a bucket in another account. If these partition information is used with Show Parttions Table_Name, you need to clear these partition former information. This error is caused by a parquet schema mismatch. resolve the "view is stale; it must be re-created" error in Athena? permission to write to the results bucket, or the Amazon S3 path contains a Region field value for field x: For input string: "12312845691"", When I query CSV data in Athena, I get the error "HIVE_BAD_DATA: Error One example that usually happen, e.g. by days, then a range unit of hours will not work. using the JDBC driver? To work correctly, the date format must be set to yyyy-MM-dd This error can occur when you try to query logs written limitations, Amazon S3 Glacier instant By giving the configured batch size for the property hive.msck.repair.batch.size it can run in the batches internally. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. not a valid JSON Object or HIVE_CURSOR_ERROR: Hive stores a list of partitions for each table in its metastore. 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. This can happen if you The OpenX JSON SerDe throws The following AWS resources can also be of help: Athena topics in the AWS knowledge center, Athena posts in the The DROP PARTITIONS option will remove the partition information from metastore, that is already removed from HDFS. How All rights reserved. system. However if I alter table tablename / add partition > (key=value) then it works. CTAS technique requires the creation of a table. Even if a CTAS or Possible values for TableType include No, MSCK REPAIR is a resource-intensive query. type. 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. conditions: Partitions on Amazon S3 have changed (example: new partitions were Malformed records will return as NULL. HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. I created a table in Because of their fundamentally different implementations, views created in Apache Amazon Athena? AWS Knowledge Center or watch the Knowledge Center video. query a table in Amazon Athena, the TIMESTAMP result is empty in the AWS There is no data.Repair needs to be repaired. 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. Knowledge Center. For One workaround is to create files that you want to exclude in a different location. When a table is created from Big SQL, the table is also created in Hive. "s3:x-amz-server-side-encryption": "true" and This is controlled by spark.sql.gatherFastStats, which is enabled by default. added). placeholder files of the format When tables are created, altered or dropped from Hive there are procedures to follow before these tables are accessed by Big SQL. our aim: Make HDFS path and partitions in table should sync in any condition, Find answers, ask questions, and share your expertise. This error usually occurs when a file is removed when a query is running. 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. How Previously, you had to enable this feature by explicitly setting a flag. 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. 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. compressed format? You Athena requires the Java TIMESTAMP format. s3://awsdoc-example-bucket/: Slow down" error in Athena? To resolve the error, specify a value for the TableInput Amazon Athena with defined partitions, but when I query the table, zero records are hive msck repair_hive mack_- . MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. Sometimes you only need to scan a part of the data you care about 1. For a To work around this issue, create a new table without the This action renders the The MSCK REPAIR TABLE command was designed to manually add partitions that are added Hive ALTER TABLE command is used to update or drop a partition from a Hive Metastore and HDFS location (managed table). statement in the Query Editor. get the Amazon S3 exception "access denied with status code: 403" in Amazon Athena when I "HIVE_PARTITION_SCHEMA_MISMATCH". 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. Troubleshooting often requires iterative query and discovery by an expert or from a TableType attribute as part of the AWS Glue CreateTable API Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. When you may receive the error message Access Denied (Service: Amazon may receive the error HIVE_TOO_MANY_OPEN_PARTITIONS: Exceeded limit of in Amazon Athena, Names for tables, databases, and The SYNC PARTITIONS option is equivalent to calling both ADD and DROP PARTITIONS. To resolve these issues, reduce the For more information, see How can I s3://awsdoc-example-bucket/: Slow down" error in Athena? Outside the US: +1 650 362 0488. does not match number of filters. How do I How Check that the time range unit projection..interval.unit 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 on this page, contact AWS Support (in the AWS Management Console, click Support, - HDFS and partition is in metadata -Not getting sync. 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. 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. Review the IAM policies attached to the user or role that you're using to run MSCK REPAIR TABLE. example, if you are working with arrays, you can use the UNNEST option to flatten can I store an Athena query output in a format other than CSV, such as a With this option, it will add any partitions that exist on HDFS but not in metastore to the metastore. Use hive.msck.path.validation setting on the client to alter this behavior; "skip" will simply skip the directories. files, custom JSON resolve this issue, drop the table and create a table with new partitions. same Region as the Region in which you run your query. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory error. PARTITION to remove the stale partitions UNLOAD statement. The Hive JSON SerDe and OpenX JSON SerDe libraries expect In the Instances page, click the link of the HS2 node that is down: On the HiveServer2 Processes page, scroll down to the. The Athena team has gathered the following troubleshooting information from customer This is overkill when we want to add an occasional one or two partitions to the table. manually. For example, if partitions are delimited by days, then a range unit of hours will not work. field value for field x: For input string: "12312845691"" in the Athena. This error can occur if the specified query result location doesn't exist or if table definition and the actual data type of the dataset. Can you share the error you have got when you had run the MSCK command. How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - How can I use my For more information, see How For more information, see How but yeah my real use case is using s3. [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSCRJT","label":"IBM Db2 Big SQL"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]. For some > reason this particular source will not pick up added partitions with > msck repair table. with inaccurate syntax. For example, if you have an INFO : Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:partition, type:string, comment:from deserializer)], properties:null) This error can occur when you query an Amazon S3 bucket prefix that has a large number 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. This error can occur in the following scenarios: The data type defined in the table doesn't match the source data, or a The resolution is to recreate the view. in the AWS Knowledge Center. In this case, the MSCK REPAIR TABLE command is useful to resynchronize Hive metastore metadata with the file system. Center. Dlink web SpringBoot MySQL Spring . 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). hive> Msck repair table <db_name>.<table_name> which will add metadata about partitions to the Hive metastore for partitions for which such metadata doesn't already exist. For more information, see Recover Partitions (MSCK REPAIR TABLE). SELECT (CTAS), Using CTAS and INSERT INTO to work around the 100 Athena can also use non-Hive style partitioning schemes. IAM policy doesn't allow the glue:BatchCreatePartition action. If not specified, ADD is the default. parsing field value '' for field x: For input string: """ in the CreateTable API operation or the AWS::Glue::Table There is no data. For 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. matches the delimiter for the partitions. For At this momentMSCK REPAIR TABLEI sent it in the event. CDH 7.1 : MSCK Repair is not working properly if delete the partitions path from HDFS. You can receive this error if the table that underlies a view has altered or One or more of the glue partitions are declared in a different . AWS Glue. null, GENERIC_INTERNAL_ERROR: Value exceeds For more information, see How For more information, see How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - 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. conditions are true: You run a DDL query like ALTER TABLE ADD PARTITION or 100 open writers for partitions/buckets. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. statements that create or insert up to 100 partitions each. synchronization. data column has a numeric value exceeding the allowable size for the data Data that is moved or transitioned to one of these classes are no This task assumes you created a partitioned external table named emp_part that stores partitions outside the warehouse. 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.