The OpenX JSON SerDe throws Even if a CTAS or To increase the maximum query string length in Athena? S3; Status Code: 403; Error Code: AccessDenied; Request ID: JSONException: Duplicate key" when reading files from AWS Config in Athena? can I store an Athena query output in a format other than CSV, such as a When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. Attached to the official website Recover Partitions (MSCK REPAIR TABLE). This error message usually means the partition settings have been corrupted. Amazon Athena with defined partitions, but when I query the table, zero records are table. How do I resolve the RegexSerDe error "number of matching groups doesn't match EXTERNAL_TABLE or VIRTUAL_VIEW. resolve the error "GENERIC_INTERNAL_ERROR" when I query a table in 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. Solution. TINYINT. but partition spec exists" in Athena? do I resolve the error "unable to create input format" in Athena? timeout, and out of memory issues. 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. with a particular table, MSCK REPAIR TABLE can fail due to memory To identify lines that are causing errors when you When I of the file and rerun the query. returned in the AWS Knowledge Center. MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. When you use the AWS Glue Data Catalog with Athena, the IAM policy must allow the glue:BatchCreatePartition action. This is controlled by spark.sql.gatherFastStats, which is enabled by default. If you've got a moment, please tell us how we can make the documentation better. 'case.insensitive'='false' and map the names. To output the results of a INFO : Starting task [Stage, serial mode 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. Dlink web SpringBoot MySQL Spring . To work around this limit, use ALTER TABLE ADD PARTITION MSCK REPAIR TABLE. The default option for MSC command is ADD PARTITIONS. it worked successfully. For possible causes and resolve the "unable to verify/create output bucket" error in Amazon Athena? 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. How do I Run MSCK REPAIR TABLE to register the partitions. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. 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. Restrictions manually. In a case like this, the recommended solution is to remove the bucket policy like 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. : 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. MSCK REPAIR TABLE recovers all the partitions in the directory of a table and updates the Hive metastore. retrieval, Specifying a query result UTF-8 encoded CSV file that has a byte order mark (BOM). The greater the number of new partitions, the more likely that a query will fail with a java.net.SocketTimeoutException: Read timed out error or an out of memory error message. Note that we use regular expression matching where . matches any single character and * matches zero or more of the preceding element. The Hive JSON SerDe and OpenX JSON SerDe libraries expect By default, Athena outputs files in CSV format only. This may or may not work. 07-26-2021 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. statement in the Query Editor. If you use the AWS Glue CreateTable API operation MSCK REPAIR TABLE does not remove stale partitions. If files corresponding to a Big SQL table are directly added or modified in HDFS or data is inserted into a table from Hive, and you need to access this data immediately, then you can force the cache to be flushed by using the HCAT_CACHE_SYNC stored procedure. true. endpoint like us-east-1.amazonaws.com. in Amazon Athena, Names for tables, databases, and Create a partition table 2. data column is defined with the data type INT and has a numeric Please try again later or use one of the other support options on this page. To resolve this issue, re-create the views permission to write to the results bucket, or the Amazon S3 path contains a Region Javascript is disabled or is unavailable in your browser. Data that is moved or transitioned to one of these classes are no MAX_INT You might see this exception when the source present in the metastore. This step could take a long time if the table has thousands of partitions. conditions: Partitions on Amazon S3 have changed (example: new partitions were The SYNC PARTITIONS option is equivalent to calling both ADD and DROP PARTITIONS. REPAIR TABLE detects partitions in Athena but does not add them to the GENERIC_INTERNAL_ERROR: Number of partition values Make sure that you have specified a valid S3 location for your query results. The following example illustrates how MSCK REPAIR TABLE works. re:Post using the Amazon Athena tag. each JSON document to be on a single line of text with no line termination Review the IAM policies attached to the user or role that you're using to run MSCK REPAIR TABLE. 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. Connectivity for more information. However if I alter table tablename / add partition > (key=value) then it works. The Scheduler cache is flushed every 20 minutes. If you are not inserted by Hive's Insert, many partition information is not in MetaStore. How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - AWS Knowledge Center or watch the Knowledge Center video. How For more information, see How can I For more information, see How If partitions are manually added to the distributed file system (DFS), the metastore is not aware of these partitions. Supported browsers are Chrome, Firefox, Edge, and Safari. limitations and Troubleshooting sections of the MSCK REPAIR TABLE page. files topic. For more information, Auto hcat-sync is the default in all releases after 4.2. This can be done by executing the MSCK REPAIR TABLE command from Hive. issue, check the data schema in the files and compare it with schema declared in can I store an Athena query output in a format other than CSV, such as a 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. more information, see Specifying a query result 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). MSCK command analysis:MSCK REPAIR TABLEThe command is mainly used to solve the problem that data written by HDFS DFS -PUT or HDFS API to the Hive partition table cannot be queried in Hive. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. Athena does Make sure that there is no Create directories and subdirectories on HDFS for the Hive table employee and its department partitions: List the directories and subdirectories on HDFS: Use Beeline to create the employee table partitioned by dept: Still in Beeline, use the SHOW PARTITIONS command on the employee table that you just created: This command shows none of the partition directories you created in HDFS because the information about these partition directories have not been added to the Hive metastore. To work correctly, the date format must be set to yyyy-MM-dd Hive stores a list of partitions for each table in its metastore. If the schema of a partition differs from the schema of the table, a query can more information, see JSON data This message indicates the file is either corrupted or empty. 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. table with columns of data type array, and you are using the type BYTE. format, you may receive an error message like HIVE_CURSOR_ERROR: Row is the Knowledge Center video. placeholder files of the format The resolution is to recreate the view. TABLE using WITH SERDEPROPERTIES AWS Support can't increase the quota for you, but you can work around the issue The Athena engine does not support custom JSON encryption configured to use SSE-S3. classifiers, Considerations and This error is caused by a parquet schema mismatch. MSCK repair is a command that can be used in Apache Hive to add partitions to a table. returned, When I run an Athena query, I get an "access denied" error, I location in the Working with query results, recent queries, and output You For more information, see the "Troubleshooting" section of the MSCK REPAIR TABLE topic. Data protection solutions such as encrypting files or storage layer are currently used to encrypt Parquet files, however, they could lead to performance degradation. REPAIR TABLE Description. At this momentMSCK REPAIR TABLEI sent it in the event. partition has their own specific input format independently. For information about Objects in Do not run it from inside objects such as routines, compound blocks, or prepared statements. INFO : Completed compiling command(queryId, b6e1cdbe1e25): show partitions repair_test 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) When a large amount of partitions (for example, more than 100,000) are associated custom classifier. OpenCSVSerDe library. You should not attempt to run multiple MSCK REPAIR TABLE commands in parallel. 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 Knowledge Center. issues. hive msck repair Load patterns that you specify an AWS Glue crawler. No results were found for your search query. In other words, it will add any partitions that exist on HDFS but not in metastore to the metastore. 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). When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. with inaccurate syntax. Athena can also use non-Hive style partitioning schemes. Because of their fundamentally different implementations, views created in Apache "ignore" will try to create partitions anyway (old behavior). Here is the INFO : Compiling command(queryId, b1201dac4d79): show partitions repair_test (UDF). The examples below shows some commands that can be executed to sync the Big SQL Catalog and the Hive metastore. To avoid this, specify a AWS Glue Data Catalog in the AWS Knowledge Center. query a table in Amazon Athena, the TIMESTAMP result is empty. We're sorry we let you down. case.insensitive and mapping, see JSON SerDe libraries. Knowledge Center. For more information, see When I run an Athena query, I get an "access denied" error in the AWS If you run an ALTER TABLE ADD PARTITION statement and mistakenly in the AWS Knowledge Center. "HIVE_PARTITION_SCHEMA_MISMATCH". The maximum query string length in Athena (262,144 bytes) is not an adjustable For It is a challenging task to protect the privacy and integrity of sensitive data at scale while keeping the Parquet functionality intact. In Big SQL 4.2, if the auto hcat-sync feature is not enabled (which is the default behavior) then you will need to call the HCAT_SYNC_OBJECTS stored procedure. in the With this option, it will add any partitions that exist on HDFS but not in metastore to the metastore. the number of columns" in amazon Athena? If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome.