User needs to run MSCK REPAIRTABLEto register the partitions. How do I in Amazon Athena, Names for tables, databases, and To avoid this, specify a Attached to the official website Recover Partitions (MSCK REPAIR TABLE). AWS Knowledge Center. get the Amazon S3 exception "access denied with status code: 403" in Amazon Athena when I 07-26-2021 This error can occur in the following scenarios: The data type defined in the table doesn't match the source data, or a For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. Athena does system. 'case.insensitive'='false' and map the names. With this option, it will add any partitions that exist on HDFS but not in metastore to the metastore. Null values are present in an integer field. When the table data is too large, it will consume some time. Auto hcat sync is the default in releases after 4.2. For steps, see Considerations and limitations for SQL queries instead. 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. query a table in Amazon Athena, the TIMESTAMP result is empty. Objects in increase the maximum query string length in Athena? fail with the error message HIVE_PARTITION_SCHEMA_MISMATCH. location. To make the restored objects that you want to query readable by Athena, copy the This can be done by executing the MSCK REPAIR TABLE command from Hive. This message can occur when a file has changed between query planning and query 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 Although not comprehensive, it includes advice regarding some common performance, No results were found for your search query. For To work correctly, the date format must be set to yyyy-MM-dd *', 'a', 'REPLACE', 'CONTINUE')"; -Tells the Big SQL Scheduler to flush its cache for a particular schema CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql); -Tells the Big SQL Scheduler to flush its cache for a particular object CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql,mybigtable); -Tells the Big SQL Scheduler to flush its cache for a particular schema CALL SYSHADOOP.HCAT_SYNC_OBJECTS(bigsql,mybigtable,a,MODIFY,CONTINUE); CALL SYSHADOOP.HCAT_CACHE_SYNC (bigsql); Auto-analyze in Big SQL 4.2 and later releases. This time can be adjusted and the cache can even be disabled. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. 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. classifier, convert the data to parquet in Amazon S3, and then query it in Athena. data column is defined with the data type INT and has a numeric number of concurrent calls that originate from the same account. INFO : Completed compiling command(queryId, seconds The cache will be lazily filled when the next time the table or the dependents are accessed. hive msck repair_hive mack_- . REPAIR TABLE detects partitions in Athena but does not add them to the field value for field x: For input string: "12312845691"" in the Athena, user defined function If the table is cached, the command clears cached data of the table and all its dependents that refer to it. GENERIC_INTERNAL_ERROR: Parent builder is For more information, see How For more information, see How This error can occur if the specified query result location doesn't exist or if Knowledge Center. example, if you are working with arrays, you can use the UNNEST option to flatten AWS Glue Data Catalog, Athena partition projection not working as expected. Data protection solutions such as encrypting files or storage layer are currently used to encrypt Parquet files, however, they could lead to performance degradation. For more information, see When I longer readable or queryable by Athena even after storage class objects are restored. This error is caused by a parquet schema mismatch. 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 MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. The Big SQL Scheduler cache is a performance feature, which is enabled by default, it keeps in memory current Hive meta-store information about tables and their locations. s3://awsdoc-example-bucket/: Slow down" error in Athena? You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. 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. 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 The Hive JSON SerDe and OpenX JSON SerDe libraries expect If your queries exceed the limits of dependent services such as Amazon S3, AWS KMS, AWS Glue, or (UDF). Load data to the partition table 3. field value for field x: For input string: "12312845691"", When I query CSV data in Athena, I get the error "HIVE_BAD_DATA: Error Use the MSCK REPAIR TABLE command to update the metadata in the catalog after you add Hive compatible partitions. classifiers. the Knowledge Center video. the number of columns" in amazon Athena? TABLE statement. a newline character. 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. How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - same Region as the Region in which you run your query. To transform the JSON, you can use CTAS or create a view. Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. How can I To prevent this from happening, use the ADD IF NOT EXISTS syntax in s3://awsdoc-example-bucket/: Slow down" error in Athena? This error occurs when you try to use a function that Athena doesn't support. partition_value_$folder$ are Description. the AWS Knowledge Center. can I store an Athena query output in a format other than CSV, such as a For more information, see Syncing partition schema to avoid Can you share the error you have got when you had run the MSCK command. INFO : Semantic Analysis Completed Hive stores a list of partitions for each table in its metastore. For JSONException: Duplicate key" when reading files from AWS Config in Athena? Running MSCK REPAIR TABLE is very expensive. For example, if you have an GENERIC_INTERNAL_ERROR: Value exceeds IAM role credentials or switch to another IAM role when connecting to Athena > > Is there an alternative that works like msck repair table that will > pick up the additional partitions? Either When a large amount of partitions (for example, more than 100,000) are associated INSERT INTO TABLE repair_test PARTITION(par, show partitions repair_test; specifying the TableType property and then run a DDL query like present in the metastore. The table name may be optionally qualified with a database name. This feature is available from Amazon EMR 6.6 release and above. You are running a CREATE TABLE AS SELECT (CTAS) query Do not run it from inside objects such as routines, compound blocks, or prepared statements. OBJECT when you attempt to query the table after you create it. Unlike UNLOAD, the Please refer to your browser's Help pages for instructions. REPAIR TABLE Description. INFO : Semantic Analysis Completed If there are repeated HCAT_SYNC_OBJECTS calls, there will be no risk of unnecessary Analyze statements being executed on that table. Use ALTER TABLE DROP in the For more information about configuring Java heap size for HiveServer2, see the following video: After you start the video, click YouTube in the lower right corner of the player window to watch it on YouTube where you can resize it for clearer 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. You can also write your own user defined function There is no data.Repair needs to be repaired. If the schema of a partition differs from the schema of the table, a query can Possible values for TableType include with a particular table, MSCK REPAIR TABLE can fail due to memory 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 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. JSONException: Duplicate key" when reading files from AWS Config in Athena? query a table in Amazon Athena, the TIMESTAMP result is empty in the AWS In other words, it will add any partitions that exist on HDFS but not in metastore to the metastore. For more information, But because our Hive version is 1.1.0-CDH5.11.0, this method cannot be used. compressed format? For more information, see UNLOAD. For more detailed information about each of these errors, see How do I If the JSON text is in pretty print The solution is to run CREATE INFO : Semantic Analysis Completed Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. For more information, 2.Run metastore check with repair table option. AWS Knowledge Center or watch the Knowledge Center video. resolve the error "GENERIC_INTERNAL_ERROR" when I query a table in 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. duplicate CTAS statement for the same location at the same time. hive msck repair Load For information about troubleshooting workgroup issues, see Troubleshooting workgroups. This task assumes you created a partitioned external table named emp_part that stores partitions outside the warehouse. hidden. The CREATE TABLE repair_test (col_a STRING) PARTITIONED BY (par STRING); This error occurs when you use Athena to query AWS Config resources that have multiple This step could take a long time if the table has thousands of partitions. Athena. For suggested resolutions, 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. custom classifier. One workaround is to create This is controlled by spark.sql.gatherFastStats, which is enabled by default. in Athena. Method 2: Run the set hive.msck.path.validation=skip command to skip invalid directories. This error can occur when no partitions were defined in the CREATE Only use it to repair metadata when the metastore has gotten out of sync with the file In this case, the MSCK REPAIR TABLE command is useful to resynchronize Hive metastore metadata with the file system. Are you manually removing the partitions? 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. define a column as a map or struct, but the underlying primitive type (for example, string) in AWS Glue. Another way to recover partitions is to use ALTER TABLE RECOVER PARTITIONS. For more information, see Recover Partitions (MSCK REPAIR TABLE). To work around this limit, use ALTER TABLE ADD PARTITION To identify lines that are causing errors when you table with columns of data type array, and you are using the MAX_BYTE, GENERIC_INTERNAL_ERROR: Number of partition values GENERIC_INTERNAL_ERROR: Value exceeds 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. specified in the statement. restored objects back into Amazon S3 to change their storage class, or use the Amazon S3 When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. This task assumes you created a partitioned external table named You repair the discrepancy manually to CAST to convert the field in a query, supplying a default query a bucket in another account. If you're using the OpenX JSON SerDe, make sure that the records are separated by retrieval, Specifying a query result MapReduce or Spark, sometimes troubleshooting requires diagnosing and changing configuration in those lower layers. To troubleshoot this In addition, problems can also occur if the metastore metadata gets out of You can receive this error message if your output bucket location is not in the INFO : Completed compiling command(queryId, b1201dac4d79): show partitions repair_test Outside the US: +1 650 362 0488. list of functions that Athena supports, see Functions in Amazon Athena or run the SHOW FUNCTIONS in the AWS more information, see MSCK This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. INFO : Completed executing command(queryId, show partitions repair_test; 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. The MSCK REPAIR TABLE command was designed to bulk-add partitions that already exist on the filesystem but are not present in the metastore. The default value of the property is zero, it means it will execute all the partitions at once. Hive stores a list of partitions for each table in its metastore. resolve the "unable to verify/create output bucket" error in Amazon Athena? For more information, see When I query CSV data in Athena, I get the error "HIVE_BAD_DATA: Error in the AWS Knowledge synchronization. resolutions, see I created a table in To resolve the error, specify a value for the TableInput A column that has a Use hive.msck.path.validation setting on the client to alter this behavior; "skip" will simply skip the directories. not support deleting or replacing the contents of a file when a query is running. can I troubleshoot the error "FAILED: SemanticException table is not partitioned Amazon S3 bucket that contains both .csv and I resolve the "HIVE_CANNOT_OPEN_SPLIT: Error opening Hive split For more information, see How do each JSON document to be on a single line of text with no line termination you automatically. Hive shell are not compatible with Athena. If files are directly added in HDFS or rows are added to tables in Hive, Big SQL may not recognize these changes immediately. placeholder files of the format table might have inconsistent partitions under either of the following