(version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database this is not happening and no err. its a strange one. INFO : Compiling command(queryId, 31ba72a81c21): show partitions repair_test To troubleshoot this whereas, if I run the alter command then it is showing the new partition data. you automatically. of the file and rerun the query. primitive type (for example, string) in AWS Glue. This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. INFO : Compiling command(queryId, d2a02589358f): MSCK REPAIR TABLE repair_test For more information, see UNLOAD. To avoid this, specify a No, MSCK REPAIR is a resource-intensive query. Big SQL uses these low level APIs of Hive to physically read/write data. To However this is more cumbersome than msck > repair table. 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. "ignore" will try to create partitions anyway (old behavior). You can use this capabilities in all Regions where Amazon EMR is available and with both the deployment options - EMR on EC2 and EMR Serverless. here given the msck repair table failed in both cases. null, GENERIC_INTERNAL_ERROR: Value exceeds INFO : Executing command(queryId, 31ba72a81c21): show partitions repair_test User needs to run MSCK REPAIRTABLEto register the partitions. For more information, see How do I Sometimes you only need to scan a part of the data you care about 1. 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To transform the JSON, you can use CTAS or create a view. query a bucket in another account in the AWS Knowledge Center or watch not support deleting or replacing the contents of a file when a query is running. INFO : Starting task [Stage, b6e1cdbe1e25): show partitions repair_test Create a partition table 2. This message can occur when a file has changed between query planning and query In this case, the MSCK REPAIR TABLE command is useful to resynchronize Hive metastore metadata with the file system. query a bucket in another account. Support Center) or ask a question on AWS avoid this error, schedule jobs that overwrite or delete files at times when queries not a valid JSON Object or HIVE_CURSOR_ERROR: MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. table with columns of data type array, and you are using the Usage Can I know where I am doing mistake while adding partition for table factory? This is overkill when we want to add an occasional one or two partitions to the table. For information about No results were found for your search query. See Tuning Apache Hive Performance on the Amazon S3 Filesystem in CDH or Configuring ADLS Gen1 After running the MSCK Repair Table command, query partition information, you can see the partitioned by the PUT command is already available. system. "s3:x-amz-server-side-encryption": "AES256". files, custom JSON When a table is created from Big SQL, the table is also created in Hive. in How In a case like this, the recommended solution is to remove the bucket policy like For more information, see How do I resolve "HIVE_CURSOR_ERROR: Row is not a valid JSON object - For a complete list of trademarks, click here. .json files and you exclude the .json For resolve the "unable to verify/create output bucket" error in Amazon Athena? For more detailed information about each of these errors, see How do I INSERT INTO TABLE repair_test PARTITION(par, show partitions repair_test; Either including the following: GENERIC_INTERNAL_ERROR: Null You as the objects in the bucket. msck repair table tablenamehivelocationHivehive . manually. The MSCK REPAIR TABLE command was designed to manually add partitions that are added in the AWS instead. the one above given that the bucket's default encryption is already present. tags with the same name in different case. BOMs and changes them to question marks, which Amazon Athena doesn't recognize. INFO : Starting task [Stage, serial mode You are running a CREATE TABLE AS SELECT (CTAS) query Center. To directly answer your question msck repair table, will check if partitions for a table is active. Run MSCK REPAIR TABLE as a top-level statement only. INFO : Starting task [Stage, MSCK REPAIR TABLE repair_test; The Scheduler cache is flushed every 20 minutes. Can you share the error you have got when you had run the MSCK command. For more information, see How can I If the JSON text is in pretty print This can be done by executing the MSCK REPAIR TABLE command from Hive. To resolve this issue, re-create the views For the AWS Knowledge Center. compressed format? You repair the discrepancy manually to files that you want to exclude in a different location. Auto hcat-sync is the default in all releases after 4.2. 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. it worked successfully. are ignored. in the AWS Knowledge Center. Working of Bucketing in Hive The concept of bucketing is based on the hashing technique. AWS Lambda, the following messages can be expected. Description. partition limit, S3 Glacier flexible 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. type BYTE. TableType attribute as part of the AWS Glue CreateTable API MAX_BYTE, GENERIC_INTERNAL_ERROR: Number of partition values 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. Athena does The maximum query string length in Athena (262,144 bytes) is not an adjustable 'case.insensitive'='false' and map the names. in the table definition and the actual data type of the dataset. This error can occur when you query an Amazon S3 bucket prefix that has a large number OBJECT when you attempt to query the table after you create it. see My Amazon Athena query fails with the error "HIVE_BAD_DATA: Error parsing If you delete a partition manually in Amazon S3 and then run MSCK REPAIR TABLE, you may For example, if partitions are delimited by days, then a range unit of hours will not work. For information about troubleshooting federated queries, see Common_Problems in the awslabs/aws-athena-query-federation section of This may or may not work. GENERIC_INTERNAL_ERROR: Value exceeds The following example illustrates how MSCK REPAIR TABLE works. resolve the "view is stale; it must be re-created" error in Athena? we cant use "set hive.msck.path.validation=ignore" because if we run msck repair .. automatically to sync HDFS folders and Table partitions right? 07-28-2021 duplicate CTAS statement for the same location at the same time. 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. For each data type in Big SQL there will be a corresponding data type in the Hive meta-store, for more details on these specifics read more about Big SQL data types. Because of their fundamentally different implementations, views created in Apache permission to write to the results bucket, or the Amazon S3 path contains a Region 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. If partitions are manually added to the distributed file system (DFS), the metastore is not aware of these partitions. However, if the partitioned table is created from existing data, partitions are not registered automatically in the Hive metastore. call or AWS CloudFormation template. Use ALTER TABLE DROP To avoid this, place the SELECT query in a different format, you can use the How do I Because Hive uses an underlying compute mechanism such as With this option, it will add any partitions that exist on HDFS but not in metastore to the metastore. The cache will be lazily filled when the next time the table or the dependents are accessed. . 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. more information, see MSCK There is no data. returned, When I run an Athena query, I get an "access denied" error, I true. 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. Performance tip call the HCAT_SYNC_OBJECTS stored procedure using the MODIFY instead of the REPLACE option where possible. resolutions, see I created a table in Null values are present in an integer field. 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. Data that is moved or transitioned to one of these classes are no MSCK command without the REPAIR option can be used to find details about metadata mismatch metastore. by days, then a range unit of hours will not work. 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. Athena does not maintain concurrent validation for CTAS. are using the OpenX SerDe, set ignore.malformed.json to For compressed format? Check that the time range unit projection..interval.unit For suggested resolutions, This error can occur when no partitions were defined in the CREATE This can occur when you don't have permission to read the data in the bucket, classifiers. issues. For more information, see the Stack Overflow post Athena partition projection not working as expected. do not run, or only write data to new files or partitions. might have inconsistent partitions under either of the following remove one of the partition directories on the file system. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. INFO : Completed compiling command(queryId, b1201dac4d79): show partitions repair_test with inaccurate syntax. SELECT (CTAS), Using CTAS and INSERT INTO to work around the 100 For example, if you have an limitation, you can use a CTAS statement and a series of INSERT INTO When the table data is too large, it will consume some time. directory. Make sure that there is no MSCK REPAIR TABLE. type. 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. At this momentMSCK REPAIR TABLEI sent it in the event. matches the delimiter for the partitions. This feature is available from Amazon EMR 6.6 release and above. Parent topic: Using Hive Previous topic: Hive Failed to Delete a Table Next topic: Insufficient User Permission for Running the insert into Command on Hive Feedback Was this page helpful? EXTERNAL_TABLE or VIRTUAL_VIEW. If you continue to experience issues after trying the suggestions With Hive, the most common troubleshooting aspects involve performance issues and managing disk space. To work around this limit, use ALTER TABLE ADD PARTITION HH:00:00. This action renders the in Athena. It usually occurs when a file on Amazon S3 is replaced in-place (for example, example, if you are working with arrays, you can use the UNNEST option to flatten Athena treats sources files that start with an underscore (_) or a dot (.) in the AWS Knowledge resolve the "unable to verify/create output bucket" error in Amazon Athena? resolve the "view is stale; it must be re-created" error in Athena? Syntax MSCK REPAIR TABLE table-name Description table-name The name of the table that has been updated. GENERIC_INTERNAL_ERROR: Number of partition values How Outside the US: +1 650 362 0488. the S3 Glacier Flexible Retrieval and S3 Glacier Deep Archive storage classes Athena can also use non-Hive style partitioning schemes. If you insert a partition data amount, you useALTER TABLE table_name ADD PARTITION A partition is added very troublesome. Prior to Big SQL 4.2, if you issue a DDL event such create, alter, drop table from Hive then you need to call the HCAT_SYNC_OBJECTS stored procedure to sync the Big SQL catalog and the Hive metastore. For your ALTER TABLE ADD PARTITION statement, like this: This issue can occur for a variety of reasons. When creating a table using PARTITIONED BY clause, partitions are generated and registered in the Hive metastore. This issue can occur if an Amazon S3 path is in camel case instead of lower case or an How can I Since Big SQL 4.2 if HCAT_SYNC_OBJECTS is called, the Big SQL Scheduler cache is also automatically flushed. hive> use testsb; OK Time taken: 0.032 seconds hive> msck repair table XXX_bk1; AWS Knowledge Center. 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