It usually occurs when a file on Amazon S3 is replaced in-place (for example, Athena does 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. Do not run it from inside objects such as routines, compound blocks, or prepared statements. For more information, To work around this limit, use ALTER TABLE ADD PARTITION When a large amount of partitions (for example, more than 100,000) are associated Accessing tables created in Hive and files added to HDFS from Big SQL - Hadoop Dev. You can also use a CTAS query that uses the 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 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. 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. including the following: GENERIC_INTERNAL_ERROR: Null You TINYINT is an 8-bit signed integer in For each JSON document to be on a single line of text with no line termination 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. To null. This is overkill when we want to add an occasional one or two partitions to the table. property to configure the output format. In a case like this, the recommended solution is to remove the bucket policy like Statistics can be managed on internal and external tables and partitions for query optimization. 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. 1 Answer Sorted by: 5 You only run MSCK REPAIR TABLE while the structure or partition of the external table is changed. statement in the Query Editor. For more information, see UNLOAD. non-primitive type (for example, array) has been declared as a To identify lines that are causing errors when you avoid this error, schedule jobs that overwrite or delete files at times when queries 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. compressed format? *', '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. (version 2.1.0 and earlier) Create/Drop/Alter/Use Database Create Database Cloudera Enterprise6.3.x | Other versions. in Athena. MSCK REPAIR TABLE on a non-existent table or a table without partitions throws an exception. 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. 06:14 AM, - Delete the partitions from HDFS by Manual. #bigdata #hive #interview MSCK repair: When an external table is created in Hive, the metadata information such as the table schema, partition information BOMs and changes them to question marks, which Amazon Athena doesn't recognize. The following example illustrates how MSCK REPAIR TABLE works. This error message usually means the partition settings have been corrupted. For more information, see How can I 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. For some > reason this particular source will not pick up added partitions with > msck repair table. number of concurrent calls that originate from the same account. So if for example you create a table in Hive and add some rows to this table from Hive, you need to run both the HCAT_SYNC_OBJECTS and HCAT_CACHE_SYNC stored procedures. more information, see Amazon S3 Glacier instant MSCK REPAIR TABLE does not remove stale partitions. it worked successfully. Yes .