msck repair table hive not working
Review the IAM policies attached to the user or role that you're using to run MSCK REPAIR TABLE. Run the distcp command to perform the data copy. You can either load all partitions or load them individually. [HIVE-13703] "msck repair" on table with non-partition subdirectories ... msck repair table and hive v2.1.0 - narkive This statement (a Hive command) adds metadata about the partitions to the Hive catalogs. MSCK REPAIR HIVE EXTERNAL TABLES - Cloudera Community - 229066 MSCK REPAIR TABLE (Databricks SQL) | Databricks on AWS hive Archives - adhocshare External table files can be accessed and managed by processes outside of Hive. Is there a way we can reduce this time or can improve the performance ?. For partitions that are not Hive compatible, use ALTER TABLE ADD PARTITION to load the partitions so that you can query the data. Failure to execute Query MSCK REPAIR TABLE xxx ... When there is a large number of untracked partitions, there is a provision to run MSCK REPAIR TABLE batch wise to avoid OOME. Solved: msck repair table bad behaviour - Cloudera Community Edit. MSCK REPAIR TABLE taking more time hive> create external table foo (a int) partitioned by (date_key bigint) location 'hdfs:/tmp/foo'; OK Time taken: 3.359 seconds hive> msck repair table foo; FAILED: Execution Error, return . This goes to the directory where the table is pointing to and then creates a tree of directories and subdirectories, check table metadata, and adds all missing partitions. Resolved; Activity. FSCK REPAIR TABLE | Databricks on AWS If your table has partitions, you need to load these partitions to be able to query data. Set the property hive.msck.path.validation=ignore or to the value of 'skip' at the cluster level. [HIVE-14772] NPE when MSCK REPAIR - ASF JIRA CREATE EXTERNAL TABLE if not exists students. January 14, 2022. The MSCK REPAIR TABLE command was designed to bulk-add partitions that already exist on the filesystem but are not present in the metastore. would anyone here have any pointers or suggestions to figure out what's going wrong? This statement does not apply to Delta Lake tables. The following query creates a table named employee using the above data. msck repair table is used to add partitions that exist in HDFS but not in the hive metastore. More. [HIVE-24200] MSCK repair table is not working - ASF JIRA MSCK REPAIR TABLE - Amazon Athena hive> create external table foo (a int) partitioned by (date_key bigint) location 'hdfs:/tmp/foo'; OK Time taken: 3.359 seconds hive> msck repair table foo; FAILED: Execution Error, return . If you go over 500 partitions, it will still work, but it'll take more time. After you create a table with partitions, run a subsequent query that consists of the MSCK REPAIR TABLE clause to refresh partition metadata, for example, MSCK REPAIR TABLE cloudfront_logs;. bigdata Archives - adhocshare table_name. msck repair table wont work if you have data in the . ( Does not work on windows ) . However if I alter table tablename / add partition > (key=value) then it works. An Error Is Reported When msck repair table table_name Is Run on Hive ... I think I need to refresh the partition info in the Hive Metastore. See HIVE-874 and HIVE-17824 for more details. On the Configuration page, click the HiveServer2 scope. hive> Msck repair table <db_name>.<table_name> which will add metadata about partitions to the Hive metastore for partitions for which such metadata doesn't already exist. In addition, we can use the Alter table add partition command to add the new partitions for a table. What is DDL statement in hive - Interview Questions People. This can happen when these files have been manually deleted. thanks, Stephen. (. export count1=$(beeline -u . 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. You remove one of the partition directories on the file system. hadoop - Drop Hive Table & msck repair fails with Table stored in ... . Hi All, We are running BDM/DEI mapping in blaze engine (10.4.1 version). 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). We are also working on delivering an EBF to allow passing Hive properties to Blaze through the Hive connection string. In the Cloudera Manager Admin Console, go to the Hive service. repair partition on hive transactional table is not working Anup Tiwari; Re: repair partition on hive transactional table is not w. Anup Tiwari; Re: repair partition on hive transactional table is n. Anup Tiwari |. The text was updated successfully, but these errors were encountered: ️ 3 Blaze mapping fails with "java.lang.RuntimeException: Failure to ... |. the end of the year and run MSCK repair table [tablename] ahead of time to get hive to recognize all partitions till the end of the year. [Hive] Alter Table/Partition/Column - Huawei Support Community Issue Links. How to drop partition in external table in hive - Quora Troubleshooting Apache Hive in CDH | 6.1.x | Cloudera Documentation Click the Performance category. The data is parsed only when you run the query. Click to see full answer. Identifies an existing Delta table. ALTER TABLE ADD PARTITION in Hive. duplicates. However this is more cumbersome than msck > repair table. The default value of the property is zero, it means it will execute all the . When I write parquet with custom partitioning like this: . Hive msck repair not working managed partition table - Cloudera This is necessary. CREATE TABLE - Amazon Athena External tables can access data stored in sources such as Azure Storage Volumes (ASV) or remote HDFS locations. AWS Athena and S3 Partitioning - Blogger ; Use Hive for this step of the mapping. This command saves a lot of time as we do not need to add each partition manually. Repair partitions using MSCK repair - Cloudera Create a shell script on the emr and run it every e.g. Hive stores a list of partitions for each table in its metastore. Update Stats It looks like everything is working fine, but the problem exists. The DML statement define as INSERT statement, it involves metadata that must be have nodes, and is also damage the SYNC_DDL query option. (PS: Querying by Hive will not work. This may or may not work. |_month=3. Notice the partition name prefixed with the partition. hive> CREATE TABLE IF NOT EXISTS employee ( eid int, name String, salary String, destination String) COMMENT 'Employee details' ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n' STORED AS TEXTFILE; If you add the option IF NOT EXISTS, Hive . Parameters. 30 minutes with the hive command MSCK repair table [tablename]. robin@hive_server:~$ hive --hiveconf hive.msck.path.validation=ignore hive> use mydatabase; OK Time taken: 1.084 seconds hive> msck repair table mytable; OK Partitions not in metastore: mytable:location=00S mytable:location=03S . This article is a collection of queries that probes Hive metastore configured with mysql to get details like list of transactional tables, etc. HIVE-14798 MSCK REPAIR TABLE throws null pointer exception. 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. Step 4. Ans 2: For an unpartitioned table, all the data of the table will be stored in a single directory/folder in HDFS. thanks, Stephen. msck repair table for custom partition names Troubleshoot Hive by using Azure HDInsight | Microsoft Docs . Just one correction: With Hive CLI, the MSCK REPAIR TABLE did not auto-detect partitions for the Delta table but it did auto-detect the partitions for the manifest . Hive configuration properties When msck repair table table_name is run on Hive, the error message "FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask (state=08S01,code= repair partition on hive transactional table is not working MSCK REPAIR TABLE 命令是做啥的. Alter table statement is used to change the table structure or properties of an existing table in Hive. Recover Partitions (MSCK REPAIR TABLE) Hive stores a list of partitions for each table in its metastore. MSCK Repair - Fixing Partitions in Hive Table - Analyticshut This caused the msck repair command to fail, only aligning metastore data to the latter partition type. The time spent in msck repair table is proportional to the number of partitions. Assign More. The landing table only has one day's worth of data and shouldn't have more than ~500 partitions, so msck repair table should complete in a few seconds. This task assumes you created a partitioned external table named emp_part that stores partitions outside the warehouse. Let us see it in action. However, it expects the partitioned field name to be included in the folder structure: year=2015. The MSCK REPAIR TABLEcommand scans a file system such as Amazon S3 for Hive compatible partitions that were added to the file system after the table was created. If you run in Hive execution mode you would need to pass on the following property hive.msck.path.validation=skip If you are running your mapping with Blaze then you need to pass on this property within the Hive connection string as blaze operates directly on the data and does not load the hive client properties. If you use the load all partitions (MSCK REPAIR TABLE) command, partitions must be in a format understood by Hive. An external table is generally used when data is located outside the Hive. MSCK REPAIR TABLE - Refresh metadata information. That bug link won't work unless one is a HW employee or contractor. When you use the AWS Glue Data Catalog with Athena, the IAM policy must allow the glue:BatchCreatePartition action. Then come Jan 1st just repeat. Repair partitions manually using MSCK repair - Cloudera > > Is there an alternative that works like msck repair table that will > pick up the additional partitions? When msck repair table table_name is run on Hive, the error message "FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask (state=08S01,code= Resolve issues with Amazon Athena queries returning empty results Cloudera Community; Announcements; Community . If new partitions are present in the S3 location that you specified when External Tables with Custom Directory Schemes. Troubleshooting Apache Hive in CDH | 6.3.x | Cloudera Documentation . Notice the partition name prefixed with the partition. msck repair table is used to add partitions that exist in HDFS but not in the hive metastore. it works for me all the time. If, however, new partitions are directly added to HDFS (say by using hadoop fs -put command) or removed from HDFS . This would provide the same functionality as Hive's MSCK REPAIR TABLE. This is necessary. This was a spike/investigation/research in my work with our current client (a bank), which is to compact HDFS (orc) files which would be persisted through a data ingestion service written in Spark streaming.
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