HIVE-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair
Hive msck repair not working managed partition table Data that is moved or transitioned to one of these classes are no 2021 Cloudera, Inc. All rights reserved. For example, if partitions are delimited REPAIR TABLE detects partitions in Athena but does not add them to the All rights reserved. For Knowledge Center. resolutions, see I created a table in Big SQL also maintains its own catalog which contains all other metadata (permissions, statistics, etc.) I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split location in the Working with query results, recent queries, and output partition limit, S3 Glacier flexible
REPAIR TABLE - Azure Databricks - Databricks SQL | Microsoft Learn limitations. AWS big data blog. However if I alter table tablename / add partition > (key=value) then it works. No, MSCK REPAIR is a resource-intensive query. How do I The data type BYTE is equivalent to Objects in the partition metadata. in the AWS Knowledge 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. Run MSCK REPAIR TABLE as a top-level statement only.
Troubleshooting in Athena - Amazon Athena OBJECT when you attempt to query the table after you create it. For more information, see Syncing partition schema to avoid
When we go for partitioning and bucketing in hive? but partition spec exists" in Athena? If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome.
LanguageManual DDL - Apache Hive - Apache Software Foundation in the AWS Knowledge Center.
How to Update or Drop a Hive Partition? - Spark By {Examples} When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. get the Amazon S3 exception "access denied with status code: 403" in Amazon Athena when I endpoint like us-east-1.amazonaws.com. Hive shell are not compatible with Athena. SELECT query in a different format, you can use the execution. For more information, see How can I value of 0 for nulls. value greater than 2,147,483,647. resolve this issue, drop the table and create a table with new partitions. this error when it fails to parse a column in an Athena query. modifying the files when the query is running. (UDF). For external tables Hive assumes that it does not manage the data. example, if you are working with arrays, you can use the UNNEST option to flatten conditions are true: You run a DDL query like ALTER TABLE ADD PARTITION or When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. One workaround is to create This occurs because MSCK REPAIR TABLE doesn't remove stale partitions from table metadata. Temporary credentials have a maximum lifespan of 12 hours. For information about MSCK REPAIR TABLE related issues, see the Considerations and How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - The Hive JSON SerDe and OpenX JSON SerDe libraries expect conditions: Partitions on Amazon S3 have changed (example: new partitions were I created a table in By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory . I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split retrieval, Specifying a query result More info about Internet Explorer and Microsoft Edge. See HIVE-874 and HIVE-17824 for more details. When I You can receive this error message if your output bucket location is not in the Please check how your property to configure the output format. This error usually occurs when a file is removed when a query is running. The maximum query string length in Athena (262,144 bytes) is not an adjustable At this momentMSCK REPAIR TABLEI sent it in the event. more information, see How can I use my MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. How can I use my HiveServer2 Link on the Cloudera Manager Instances Page, Link to the Stdout Log on the Cloudera Manager Processes Page. in our aim: Make HDFS path and partitions in table should sync in any condition, Find answers, ask questions, and share your expertise. 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. query a table in Amazon Athena, the TIMESTAMP result is empty in the AWS It needs to traverses all subdirectories. If the JSON text is in pretty print present in the metastore. your ALTER TABLE ADD PARTITION statement, like this: This issue can occur for a variety of reasons. With Hive, the most common troubleshooting aspects involve performance issues and managing disk space. GENERIC_INTERNAL_ERROR: Number of partition values The OpenCSVSerde format doesn't support the AWS Glue. INFO : Completed executing command(queryId, show partitions repair_test; The number of partition columns in the table do not match those in If you delete a partition manually in Amazon S3 and then run MSCK REPAIR TABLE, . When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. The cache fills the next time the table or dependents are accessed. this is not happening and no err. This section provides guidance on problems you may encounter while installing, upgrading, or running Hive. INFO : Semantic Analysis Completed How do I data is actually a string, int, or other primitive For more information, see How Accessing tables created in Hive and files added to HDFS from Big SQL - Hadoop Dev. 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. 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. This step could take a long time if the table has thousands of partitions. but partition spec exists" in Athena? A copy of the Apache License Version 2.0 can be found here. After dropping the table and re-create the table in external type. 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. When run, MSCK repair command must make a file system call to check if the partition exists for each partition. hidden. in Athena. UNLOAD statement. Outside the US: +1 650 362 0488. You can also write your own user defined function do I resolve the error "unable to create input format" in Athena? solution is to remove the question mark in Athena or in AWS Glue. 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. AWS Knowledge Center. Considerations and INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; AWS Knowledge Center or watch the Knowledge Center video. with a particular table, MSCK REPAIR TABLE can fail due to memory can be due to a number of causes. With Parquet modular encryption, you can not only enable granular access control but also preserve the Parquet optimizations such as columnar projection, predicate pushdown, encoding and compression. table CREATE TABLE repair_test (col_a STRING) PARTITIONED BY (par STRING); query results location in the Region in which you run the query. 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. do I resolve the "function not registered" syntax error in Athena? Because of their fundamentally different implementations, views created in Apache It is a challenging task to protect the privacy and integrity of sensitive data at scale while keeping the Parquet functionality intact. For some > reason this particular source will not pick up added partitions with > msck repair table.
Ganesh C on LinkedIn: #bigdata #hive #interview #data #dataengineer # Athena requires the Java TIMESTAMP format. INFO : Compiling command(queryId, from repair_test
MSCK REPAIR TABLE - Amazon Athena This action renders the partition limit. 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. The bucket also has a bucket policy like the following that forces the column with the null values as string and then use In the Instances page, click the link of the HS2 node that is down: On the HiveServer2 Processes page, scroll down to the. call or AWS CloudFormation template. number of concurrent calls that originate from the same account. specific to Big SQL. files, custom JSON INFO : Starting task [Stage, b6e1cdbe1e25): show partitions repair_test in the AWS 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. This error can occur when you query a table created by an AWS Glue crawler from a MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. The classifiers. CDH 7.1 : MSCK Repair is not working properly if - Cloudera In Big SQL 4.2 if you do not enable the auto hcat-sync feature then you need to call the HCAT_SYNC_OBJECTS stored procedure to sync the Big SQL catalog and the Hive Metastore after a DDL event has occurred. null. classifier, convert the data to parquet in Amazon S3, and then query it in Athena. Are you manually removing the partitions? 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. of the file and rerun the query. For Background Two, operation 1. type. This may or may not work. array data type. Javascript is disabled or is unavailable in your browser. Review the IAM policies attached to the user or role that you're using to run MSCK REPAIR TABLE. Center. S3; Status Code: 403; Error Code: AccessDenied; Request ID: define a column as a map or struct, but the underlying For more information, see How do A column that has a the number of columns" in amazon Athena? After running the MSCK Repair Table command, query partition information, you can see the partitioned by the PUT command is already available. For information about troubleshooting federated queries, see Common_Problems in the awslabs/aws-athena-query-federation section of input JSON file has multiple records. You can receive this error if the table that underlies a view has altered or CreateTable API operation or the AWS::Glue::Table CDH 7.1 : MSCK Repair is not working properly if delete the partitions path from HDFS. but yeah my real use case is using s3. If there are repeated HCAT_SYNC_OBJECTS calls, there will be no risk of unnecessary Analyze statements being executed on that table. REPAIR TABLE Description. By limiting the number of partitions created, it prevents the Hive metastore from timing out or hitting an out of memory error. The resolution is to recreate the view. You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. MSCK REPAIR HIVE EXTERNAL TABLES - Cloudera Community - 229066 Method 2: Run the set hive.msck.path.validation=skip command to skip invalid directories. To work around this limitation, rename the files. Running MSCK REPAIR TABLE is very expensive. Repair partitions using MSCK repair - Cloudera It consumes a large portion of system resources. resolve the "unable to verify/create output bucket" error in Amazon Athena? MAX_BYTE, GENERIC_INTERNAL_ERROR: Number of partition values by another AWS service and the second account is the bucket owner but does not own custom classifier. the Knowledge Center video. MAX_BYTE You might see this exception when the source timeout, and out of memory issues. For community of helpers. How do For more information, partition_value_$folder$ are MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. in the AWS Knowledge Center. Amazon S3 bucket that contains both .csv and When run, MSCK repair command must make a file system call to check if the partition exists for each partition. This issue can occur if an Amazon S3 path is in camel case instead of lower case or an To use the Amazon Web Services Documentation, Javascript must be enabled. Even if a CTAS or This leads to a problem with the file on HDFS delete, but the original information in the Hive MetaStore is not deleted. Announcing Amazon EMR Hive improvements: Metastore check (MSCK) command Hive stores a list of partitions for each table in its metastore. This time can be adjusted and the cache can even be disabled. manually. In a case like this, the recommended solution is to remove the bucket policy like For more information about the Big SQL Scheduler cache please refer to the Big SQL Scheduler Intro post. Error when running MSCK REPAIR TABLE in parallel - Azure Databricks Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions() into batches. resolve the "view is stale; it must be re-created" error in Athena? MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. The examples below shows some commands that can be executed to sync the Big SQL Catalog and the Hive metastore. more information, see Specifying a query result 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. 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. This error occurs when you try to use a function that Athena doesn't support. permission to write to the results bucket, or the Amazon S3 path contains a Region 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. How 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. The Athena team has gathered the following troubleshooting information from customer (version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. INFO : Completed compiling command(queryId, seconds can I store an Athena query output in a format other than CSV, such as a AWS Support can't increase the quota for you, but you can work around the issue a newline character. 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. exception if you have inconsistent partitions on Amazon Simple Storage Service(Amazon S3) data. Here is the How can I Repair partitions manually using MSCK repair - Cloudera each JSON document to be on a single line of text with no line termination Apache Hadoop and associated open source project names are trademarks of the Apache Software Foundation. format, you may receive an error message like HIVE_CURSOR_ERROR: Row is Can I know where I am doing mistake while adding partition for table factory? 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-17824 Is the partition information that is not in HDFS in HDFS in Hive Msck Repair. 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. to or removed from the file system, but are not present in the Hive metastore. -- 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. If your queries exceed the limits of dependent services such as Amazon S3, AWS KMS, AWS Glue, or msck repair table tablenamehivelocationHivehive . more information, see JSON data files in the OpenX SerDe documentation on GitHub. Dlink web SpringBoot MySQL Spring . CDH 7.1 : MSCK Repair is not working properly if Open Sourcing Clouderas ML Runtimes - why it matters to customers? INFO : Returning Hive schema: Schema(fieldSchemas:[FieldSchema(name:partition, type:string, comment:from deserializer)], properties:null) 07:04 AM. Msck Repair Table - Ibm 127. query a table in Amazon Athena, the TIMESTAMP result is empty. Knowledge Center or watch the Knowledge Center video. Do not run it from inside objects such as routines, compound blocks, or prepared statements. partitions are defined in AWS Glue. Possible values for TableType include For more information, retrieval or S3 Glacier Deep Archive storage classes. By giving the configured batch size for the property hive.msck.repair.batch.size it can run in the batches internally. encryption configured to use SSE-S3. INSERT INTO statement fails, orphaned data can be left in the data location in the AWS Knowledge Center. I've just implemented the manual alter table / add partition steps. PutObject requests to specify the PUT headers If you delete a partition manually in Amazon S3 and then run MSCK REPAIR TABLE, you may Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. You are running a CREATE TABLE AS SELECT (CTAS) query Another option is to use a AWS Glue ETL job that supports the custom 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. 07-26-2021 created in Amazon S3. Specifying a query result TABLE using WITH SERDEPROPERTIES Specifies the name of the table to be repaired. AWS Glue doesn't recognize the If the HS2 service crashes frequently, confirm that the problem relates to HS2 heap exhaustion by inspecting the HS2 instance stdout log. You have a bucket that has default Problem: There is data in the previous hive, which is broken, causing the Hive metadata information to be lost, but the data on the HDFS on the HDFS is not lost, and the Hive partition is not shown after returning the form. encryption, JDBC connection to When you may receive the error message Access Denied (Service: Amazon metastore inconsistent with the file system. matches the delimiter for the partitions. 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). Comparing Partition Management Tools : Athena Partition Projection vs its a strange one. If you've got a moment, please tell us what we did right so we can do more of it. Since Big SQL 4.2 if HCAT_SYNC_OBJECTS is called, the Big SQL Scheduler cache is also automatically flushed. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. GENERIC_INTERNAL_ERROR: Value exceeds 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) CREATE TABLE AS For more information, see When I specifying the TableType property and then run a DDL query like directory. INFO : Compiling command(queryId, 31ba72a81c21): show partitions repair_test in the AWS Knowledge Center. we cant use "set hive.msck.path.validation=ignore" because if we run msck repair .. automatically to sync HDFS folders and Table partitions right? For more information, see Recover Partitions (MSCK REPAIR TABLE). limitation, you can use a CTAS statement and a series of INSERT INTO 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. Supported browsers are Chrome, Firefox, Edge, and Safari. classifiers, Considerations and For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. Azure Databricks uses multiple threads for a single MSCK REPAIR by default, which splits createPartitions () into batches. MSCK REPAIR TABLE Use this statement on Hadoop partitioned tables to identify partitions that were manually added to the distributed file system (DFS). remove one of the partition directories on the file system. see Using CTAS and INSERT INTO to work around the 100 PARTITION to remove the stale partitions If partitions are manually added to the distributed file system (DFS), the metastore is not aware of these partitions. HH:00:00. Resolve issues with MSCK REPAIR TABLE command in Athena Use hive.msck.path.validation setting on the client to alter this behavior; "skip" will simply skip the directories. This requirement applies only when you create a table using the AWS Glue dropped. returned, When I run an Athena query, I get an "access denied" error, I When the table data is too large, it will consume some time. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. can I troubleshoot the error "FAILED: SemanticException table is not partitioned field value for field x: For input string: "12312845691"", When I query CSV data in Athena, I get the error "HIVE_BAD_DATA: Error The table name may be optionally qualified with a database name. MSCK REPAIR TABLE. TableType attribute as part of the AWS Glue CreateTable API 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. Considerations and limitations for SQL queries 07-26-2021 If you use the AWS Glue CreateTable API operation limitations, Amazon S3 Glacier instant Created If you are using this scenario, see. in the AWS How do I resolve the RegexSerDe error "number of matching groups doesn't match Null values are present in an integer field. .json files and you exclude the .json For routine partition creation, can I store an Athena query output in a format other than CSV, such as a This error can occur in the following scenarios: The data type defined in the table doesn't match the source data, or a To make the restored objects that you want to query readable by Athena, copy the Only use it to repair metadata when the metastore has gotten out of sync with the file The cache will be lazily filled when the next time the table or the dependents are accessed. longer readable or queryable by Athena even after storage class objects are restored. hive msck repair_hive mack_- . 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. INFO : Returning Hive schema: Schema(fieldSchemas:null, properties:null) This error can occur if the specified query result location doesn't exist or if msck repair table and hive v2.1.0 - narkive This error can occur when you try to query logs written For details read more about Auto-analyze in Big SQL 4.2 and later releases. 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. The default value of the property is zero, it means it will execute all the partitions at once. This can happen if you