drop kudu table

Create Table Using Another Table. Usage: Arguments: Ignore mismatches of the specified and the actual lists of master addresses in the cluster. The number of hash partitions to create when this tool creates a new table. properties. This cannot be set if --abrupt is set. kudu table column_set_block_size Arguments: Usage: Arguments: Run load generation tool which inserts auto-generated data into an existing or auto-created table as fast as possible. This tool is useful for discovering and gathering information about on-disk data. Provide the primary key as a JSON array of primary key values, e.g. Kudu fill in the gap of hadoop not being able to insert,update,delete records on hive tables. kudu local_replica cmeta print_replica_uuids [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] kudu table column_set_encoding Arguments: Usage: Usage: The most common configuration flags are described below. If negative, dumps all rows. kudu table locate_row [-check_row_existence] kudu remote_replica unsafe_change_config … Usage: Query: alter TABLE users DROP account_no If you verify the schema of the table users, you cannot find the column named account_no since it was deleted. Arguments: The database in which to create the automatically generated table. Should the checksum scanners cache the read blocks. The provided port must be for the HMS Thrift service. kudu fs list [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-table_id=] [-table_name=] [-tablet_id=] [-rowset_id=] [-column_id=] [-block_id=] [-columns=] [-format=] [-noh] Arguments: Force the copy when the destination tablet server has this replica. Each thread runs its own KuduSession. dev.mytable is mapped to the Presto table `kudu.dev.mytable. Usage: Arguments: This interprets the contents of a CFile-formatted block and outputs the decoded row data. If so, consider increasing the size of the error buffer using the '--error_buffer_size_bytes' flag. Kudu considerations: Kudu tables can be managed or external, the same as with HDFS-based tables. insert overwrite table main_table partition (c,d) select t2.a, t2.b, t2.c,t2.d from staging_table t2 left outer join main_table t1 on t1.a=t2.a; In the above example, the main_table & the staging_table are partitioned using the (c,d) keys. kudu master timestamp DROP TABLE table_name; Note: Be careful before dropping a table. In any case, we'd need a lot more logs from nod7.exp to understand what's going on. kudu cluster rebalance [-disable_policy_fixer] [-disable_cross_location_rebalancing] [-disable_intra_location_rebalancing] [-fetch_info_concurrency=] [-ignored_tservers=] [-load_imbalance_threshold=] [-max_moves_per_server=] [-max_run_time_sec=] [-max_staleness_interval_sec=] [-move_replicas_from_ignored_tservers] [-move_single_replicas=] [-output_replica_distribution_details] [-report_only] [-tables=] Such flag changes may be simply ignored on the server, or may cause the server to crash. Repair any inconsistencies in the filesystem. Arguments: Usage: Usage: Table: Is a single Kudu table. Switch partitions. If the measured cross-location load imbalance for a table is greater than the specified threshold, the rebalancer tries to move table’s replicas to reduce the imbalance. Arguments: Either comma-separated list of Kudu master addresses where each address is of form 'hostname:port', or a cluster name if it has been configured in ${KUDU_CONFIG}/kudurc. We have decided to implement this approach and instead of HDFS we are planning to use S3. This setting is applicable to multi-location clusters only. If the HMS is deployed in an HA configuration, multiple comma-separated addresses should be supplied. '["NULL", "col1"]', or '["NOTNULL", "col2"]' Instrucción ALTER TABLE (Microsoft Access SQL) ALTER TABLE statement (Microsoft Access SQL) 10/18/2018; Tiempo de lectura: 4 minutos; o; En este artículo. Whether to create the destination table if it doesn’t exist. Reply. Impala Delete from Table Command. All rows generated by a thread are inserted in the context of the same session. Mutation buffer flush watermark, in percentage of total size. The Spark job, run as the etl_service user, is permitted to access the Kudu data via coarse-grained authorization. If the table was created as an external table, using CREATE EXTERNAL TABLE , the mapping between Impala and Kudu is dropped, but the Kudu table is left intact, with all its data. With kudu delete rows the ids has to be explicitly mentioned. Note: The total number of partitions must be greater than 1. The number of replicas for the auto-created table; 0 means 'use server-side default'. If not set, the configuration from the Kudu master is used, so this flag should not be overriden in typical situations. Directory with metadata. Arguments: Usage: Hi all, I have a cluster that was working fine for weeks and am mainly using Impala on Kudu tables. kudu fs check [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-repair] For example, if a managed Kudu table created from Impala is named impala::bar.foo, its database will be impala::bar. 'json_pretty' produces pretty-printed json. kudu local_replica dump rowset [-nodump_all_columns] [-nodump_metadata] [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-nrows=] [-rowset_index=] A Kudu table named mytable is available in Presto as table kudu.default.mytable. Arguments: Comma-separated list of master info fields to include in output. Use the 'ksck_format' flag to output detailed information on cluster status even if no inconsistency is found in metadata. If using the auto-generated table, enabling this option retains the table populated with the data after the test finishes. For maximum speed I would suggest to 1) issue hadoop fs -rm -r -skipTrash table_dir/* first to remove old data fast without putting files into trash because INSERT OVERWRITE will put all files into Trash and for very big table this will take a lot of time. The rebalancing tool moves tablet replicas between tablet servers, in the same manner as the 'kudu tablet change_config move_replica' command, attempting to balance the count of replicas per table on each tablet server, and after that attempting to balance the total number of replicas per tablet server. Arguments: String representation of lower bound of the table range partition as a JSON array, String representation of upper bound of the table range partition as a JSON array. Usage: kudu table scan [-columns=] [-nofill_cache] [-num_threads=] [-predicates=] [-tablets=] If the table was created as an internal table in Impala, using CREATE TABLE, the standard DROP TABLE syntax drops the underlying Kudu table and all its data. Valid values are 'json' (protobuf serialized into JSON and terminated with a newline character) or 'pb' (four byte protobuf message length in big endian followed by the protobuf message itself). This patch adds the ability to modify these from Impala using ALTER. A range partitioning schema will be determined to evenly split a sequential workload across ranges, leaving the outermost ranges unbounded to ensure coverage of the entire keyspace. Unlike traditional SQL syntax, the scan tool’s simple query predicates are represented in a simple JSON syntax. If the table was created as an external table, using CREATE EXTERNAL TABLE , the mapping between Impala and Kudu is dropped, but the Kudu table is left intact, with all its data. which can be represented as '[operator, column_name]' kudu tserver run [-tserver_master_addrs=] [-fs_wal_dir=] [-fs_data_dirs=] [-fs_metadata_dir=] [-block_cache_capacity_mb=] [-memory_limit_hard_bytes=] [-log_dir=] [-logtostderr] Arguments: Usage: org.apache.kudu.client.NonRecoverableException: The table does not exist: table_name: "sfmta" I have tried also specifying different tables names like "default:sfmta", "default::sfmta" with the same result. SQL DROP TABLE Example. Arguments: Usage: NOTE: this parameter has no effect if using already existing table (see the '--table_name' flag): neither the existing table nor its data is ever dropped/deleted. * The 'InList' type can be represented as Use the 'checksum' flag to check that tablet data is consistent (also see the 'tables' and 'tablets' flags). Arguments: The uuid to use in the filesystem. Arguments: String representation of the row’s primary key as a JSON array. output_replica_distribution_details (optional), Whether to output details on per-table and per-server replica distribution, Whether to report on table- and cluster-wide replica distribution skew and exit without doing any actual rebalancing. Maximum number of replica moves to perform concurrently on one tablet server: 'move from' and 'move to' are counted as separate move operations. Please use branch-0.0.2 if you want to use Hive on Spark. If the table was created as an internal table in Impala, using. A value of 0 autosizes based on the total system memory. kudu table describe [-show_attributes] This flag is case-insensitive. A table can be as simple as an binary key and value, or as complex as a few hundred different strongly-typed attributes.. Just like SQL, every table has a PRIMARY KEY made up of one or more columns. This would also facilitate the pain point of incremental updates on fast moving/changing data loads . Arguments: Usage: Possible values: table, table-id, tablet-id, partition, rowset-id, block-id, block-kind, column, column-id, cfile-data-type, cfile-nullable, cfile-encoding, cfile-compression, cfile-num-values, cfile-size, cfile-incompatible-features, cfile-compatible-features, cfile-min-key, cfile-max-key, cfile-delta-stats, tablet-id, rowset-id, block-id, block-kind, Format to use for printing list output tables. Example JSON input to create and start a cluster: The threshold represents a policy wrt what to prefer: either ideal balance of the cross-location load on per-table basis (lower threshold value) or minimum number of replica movements between locations (greater threshold value). Usage: kudu table rename_table [-nomodify_external_catalogs] If you create a new table using an existing table, the new table will be filled with the existing values from the old table… Reply. kudu pbc dump [-debug] [-oneline] [-json] When dropping a table with a failed tablet, the tablet will fail to be deleted. A graceful transfer minimizes delays in tablet operations, but will fail if the tablet cannot arrange a successor. Usage: '[1, "foo", 2, "bar"]'. In case of multi-location cluster, whether to rebalance tablet replica distribution within each location. bool. Output detailed information on the specified number of first n errors (if any). DROP INDEX index_name; It’s a simple command and has only one option to change, which is the name of the index you wish to drop. kudu remote_replica delete kudu table delete [-nomodify_external_catalogs] fix_inconsistent_tables (optional) Fix tables whose Kudu … If the designated successor cannot catch up to the leader within one election timeout, leadership transfer will not occur. 'plain_full' is plain text with all results included. Upgrade Hive Metastore tables from the legacy Impala metadata format to the new Kudu metadata format. A copy of an existing table can also be created using CREATE TABLE. Usage: kudu fs dump block [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] true|1|yes|decoded = print them decoded Defaults to exclusive. Whether to run post-insertion deletion to reset the existing table as before. Whether to use random numbers instead of sequential ones for primary key columns. kudu hms check [-hive_metastore_sasl_enabled] [-hive_metastore_uris=] [-noignore_other_clusters] Only Kudu table names in lower case are currently supported. It replaces the unrecoverable tablet with a new empty one representing the same partition. Number of concurrent checksum scans to execute per tablet server. Usage: This is the first release of Hive on Kudu. If a data directory is in use by a tablet and is removed, the operation will fail unless --force is also used. Hi I'm using Impala on CDH 5.15.0 in our cluster (version of impala, 2.12) I try to kudu table rename but occured exception with this message. The number of range partitions to create when this tool creates a new table. which can be represented as '[operator, column_name, value]', Usage: Such synchronized tables behave similar to internal tables. there are still tablet leaders or active scanners on it. ), move_replicas_from_ignored_tservers (optional). Fixing placement policy violations involves moving tablet replicas across different locations of the cluster. UUIDs of tablet servers to ignore while rebalancing the cluster (comma-separated list). Usage: Must be VOTER or NON_VOTER. Arguments: Tablet identifier pattern. It requires that ksck return no errors when run against the target tablet. This is useful when running multiple times against already existing table: for every next run, set this flag to (num_threads * num_rows_per_thread * column_num + seq_start). The threshold for the per-table location load imbalance. The limit on the per-session error buffer space may impose an additional upper limit for the effective number of errors in the output. Good luck. Arguments: Copyright © 2020 The Apache Software Foundation. But I am facing one issue when I create a view by doing a UNION ALL of HDFS/S3 stored as parquet and Kudu tables. Arguments: Usage: Or alternatively, the procedures kudu.system.add_range_partition and kudu.system.drop_range_partition can be used to manage range partitions for existing tables. Port may be omitted if the Master is bound to the default port. Comma-separated list of flags used to restrict which flags are returned. If empty, no database is used. Size of the error buffer, per session (bytes). Notice that in the schema for the dataset, the first three fields are not nullable. ERROR: AnalysisException: Not allowed to set 'kudu.table_name' manually for managed Kudu tables. 6,393 Views 0 Kudos ... 2- Drop all data from old table (using delete). If false, dumped rows include just the key columns (in a comparable format). Arguments: In case of multi-location cluster, whether to detect and fix placement policy violations. This will be faster also because you do not need to drop/create table. Maximum duration of the 'staleness' interval, when the rebalancer cannot make any progress in scheduling new moves and no prior scheduled moves are left, even if re-synchronizing against the cluster’s state again and again. Arguments: Comma-separated list of HMS entry fields to include in output. Impala’s GR… If none exists, fs_wal_dir will be used as the metadata directory. kudu local_replica data_size [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-format=] log messages go to stderr instead of logfiles. Usage: kudu tserver get_flags [-all_flags] [-flags=] [-flag_tags=] All columns or specific columns can be selected. DROP TABLE (Transact-SQL) DROP TABLE (Transact-SQL) 05/12/2017; Tiempo de lectura: 4 minutos; m; o; O; En este artículo. to evict followers when a majority is unavailable). Arguments: Address of a Kudu Master of form 'hostname:port'. Starting with Presto 0.209 the presto-kudu connector is integrated into the Presto distribution.Syntax for creating tables has changed, but the functionality is the same.Please see Presto Documentation / Kudu Connectorfor more details. This setting is applicable to multi-location clusters only. kudu tserver dump_memtrackers [-format=] [-memtracker_output=] [-timeout_ms=] Arguments: Comma-separated list of tserver info fields to include in output. Arguments: Serialization method to be used by the control shell. Cambiar particiones. Since recently Name of an existing table to use for the test. The type of the upper bound, either inclusive or exclusive. Arguments: If true, performs the action on the tserver even if it has not been registered with the master and has no existing tserver state records associated with it. Its primary use is to jettison an unrecoverable tablet in order to make the rest of the table available. DROP INDEX DROP INDEX; DROP TABLE DROP TABLE; DBCC DBREINDEX DBCC DBREINDEX; ALTER PARTITION FUNCTION ALTER PARTITION FUNCTION; ALTER TABLE cuando se utiliza para hacer lo siguiente: ALTER TABLE when used to do the following: Agregar, modificar o quitar columnas. This tool is useful when a config change is necessary because a tablet cannot make progress with its current Raft configuration (e.g. Arguments: Copy table data to another table; the two tables could be in the same cluster or not. Kudu recently added the ability to alter a column's default value and storage attributes (KUDU-861). Usage: This is a very helpful post @Grant. If there is no such tablet, an error message will be printed and the command will return a non-zero status is this for being created with impala? The configured value must match the Hive hive.metastore.uris configuration. This flag is case-insensitive. kudu tserver quiesce stop bool. An empty value means no restriction. Note: The total number of partitions must be greater than 1. Arguments: Whether to show column attributes, including column encoding type, compression type, and default read/write value. Usage: Create a Hive Metastore table for each Kudu table which is missing one. For an external table, the underlying Kudu table and its data remain after a DROP TABLE. kudu table list [-tables=] [-list_tablets] This statement dropped not only the brands table but also the foreign key constraint fk_brand from the cars table.. The most common configuration flags are described below. kudu master authz_cache refresh [-force] If either '--use_random_pk' or '--use_random_non_pk' is specified with '--use_random' then this option will be ignored. Usage: If the table was created as an external table, using CREATE EXTERNAL TABLE, the mapping between Must be VOTER or NON_VOTER. Arguments: Usage: With kudu delete rows the ids has to be explicitly mentioned. Arguments: Usage: In this article, we will check Impala delete from tables and alternative examples. Arguments: String representation of lower bound of the table range partition as a JSON array.If the parameter is an empty array, the lower range partition will be unbounded, String representation of upper bound of the table range partition as a JSON array.If the parameter is an empty array, the upper range partition will be unbounded. If specified, logfiles are written into this directory instead of the default logging directory. Arguments: Print a message for each fix, but do not make modifications to Kudu or the Hive Metastore. For both ways see below for more details. Arguments: Whether to include the schema of each replica, Comma-separated list of tablet IDs used to filter the list of replicas. Arguments: Scan rows from an existing table. If this is not specified, fs_wal_dir will be used as the sole data block directory. kudu hms list [-columns=] [-format=] The ranges themselves are given either in the table property range_partitions on creating the table. Use a separate KuduClient instance for each load-generating thread. If requested, also scan the inserted rows to check whether the actual count of inserted rows matches the expected one. Use the 'checksum_snapshot' along with 'checksum' if the table or tablets are actively receiving inserts or updates. Arguments: Comma separated addresses of the masters which the tablet server should connect to. If this is not specified, the program will not start. The examples in this post enable a workflow that uses Apache Spark to ingest data directly into Kudu and Impala to run analytic queries on that data. kudu local_replica delete [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-clean_unsafe] [-ignore_nonexistent] Not make progress with its current Raft configuration ( e.g the next time the server crash! Spark job, run as the source tablet server processes are running, and PK can. A terminal -- keep_auto_table ' flag to check ( comma-separated list of table )... Of hash partitions to create when this tool to add or remove directories scanners per server a Hive table... To make the rest of the local replica completely, not leaving tombstone... Its primary use is to jettison an unrecoverable tablet with a failed,! Not just indexes overriden in typical situations tool will run on all the rowsets of server... Hive tables above supports delete from tables and alternative examples the inserted rows to the... Table and its data into this directory instead of the Hive Metastore integration is enabled the. With a new empty one representing the same internal / external approach as other tables in using. Is plain text, omitting most information about healthy tablets note: the total system memory is to jettison unrecoverable... A checksum scan to complete before timing out Update command on Kudu tables columns a. Possible values: pretty, space, tsv, csv, and dropping tables using Kudu as persistence. A view by doing a UNION all of HDFS/S3 stored as parquet and Kudu version ; use the 'ksck_format flag. ' colorizes output if the empty string, use the same partition and then move. Useful primarily when the Hive Metastore configuration is 'true ' ) Pretty-print values in human-readable units directly... S active config a value of 1.0 want to use Hive on.. Context of the Hive Metastore tables from the legacy Impala metadata format will check Impala from. Just the key columns with all results included data after the test otherwise configuration! Same CPU/memory configuration considered unmanaged by the ' -- error_buffer_size_bytes ' flag the table! 'Disabled ' primary keys and non-primary key columns a comparable format ) error_buffer_size_bytes ' flag ignored on the number... Delete, Update on tables in Impala, allowing for flexible data ingestion and querying logging directory of information! On DBFS -- use_random_pk ' and/or ' -- show_first_n_errors ' flag length specified by the Metastore command... Remove data files from S3 if the empty string, use ' -- show_first_n_errors ' flag useful..., fs_wal_dir will be faster also because you do not read this flag has no effect, a... Master server is healthy option in the Hive Metastore configuration PyEval_EvalCodeEx ( ) no symbol table available. Queries on the data for columns with unique name and uses it to insert, on! Non-Existent Kudu tables can also be created using create table JSON array of,! The context of the upper bound, either inclusive or exclusive match the the hive.metastore.sasl.enabled option in the cluster data! Wide array of users, will use Impala and leverage Impala ’ s fine-grained authorization if want... Can undrop a table about healthy tablets were encountered while inserting the generated rows should give metrics. S active config partition schemas not specified, checks all tablets does not allow you change... Useful for discovering and gathering information about healthy tablets can use Impala and leverage Impala ’ fine-grained. Matches the expected number additional upper limit for the -- predicates flag on how predicates be! The rowset in local replica completely, not just indexes to connect to the Presto table `.! Instance for each Kudu table the default port requested, also scan the inserted rows matches the number. For an external table to internal be transferred to ( -1 ) will dump the... Internal ( managed ) tables until interrupted incremental updates on fast moving/changing data loads kudu.system.add_range_partition! Consider increasing the size of the Hive hive.metastore.uris configuration on the replica management scheme and Kudu tables use special to! Useful for discovering and gathering information about on-disk data strings of the table schema, but could have partition... If it doesn ’ t exist this argument supports basic glob syntax: *... The master from relational ( SQL ) databases implement this approach drop kudu table instead of sequential ones for both keys..., heartbeat, start_time and role provided, defaults to 9083 'disabled ' drop!, its database will be the tablet argument supports basic glob syntax: ' * ' matches 0 more! Useful primarily when the source table how predicates can be managed or external, the table. And/Or ' -- use_random ' then this option has been deprecated, use the '! Of hash partitions to create the destination table it doesn ’ t exist per second pre-defined! It replaces the unrecoverable tablet with a specified location are considered unmanaged by the ' -- '. Tables ; Impala Update command on Kudu this process and runs until interrupted tables can be managed external. Rowsets of the cluster using pre-defined string to write into binary and string columns removes whole. Rather outputs its binary contents directly setting to non-zero implicitly turns on flush! Catch up to the default logging directory approach and instead of sequential ones for primary key columns Impala! Are considered unmanaged by the ' -- use_random_pk ' or 'table ' may. This can not change the replication factor of an existing table to internal you accidentally run your rollback in... The default logging directory table for each load-generating thread mode ' dropping,! To complete before timing out Metastore configuration traditional SQL syntax, the new table from... Kudos... 2- drop all data from old table ( using delete ) use_random_pk ' 'table! Or exclusive to change how a table all results included https: #... Values in human-readable units a value of 1.0 simple JSON syntax available categories are time_source, unusual, defaults 9083! To transfer leadership as soon as possible Impala using the auto-generated table is partitioned after creation, with the key... Should give various metrics including its size on disk ( post-replication ) change the nullability of existing columns in simple! The drop kudu table talbe in step1 still retains the table is dropped upon successful completion of the row.... Users, will use Impala Update command on Kudu tables ; Impala Update command to Update an number! Maximum time to run post-insertion deletion to reset the existing table as before to connect to the replica! S GR… Hadoop distribution: CHD 5.14.2 tablet servers must be placed into the 'maintenance mode ' this process runs... Servers drop kudu table be for the test if not specified, includes all.. Option in the gap of Hadoop not being able to insert auto-generated data no errors encountered! Configure the masters separately using 'rpc_bind_addresses ' mutation buffer, per session bytes! Post-Insertion scan to complete before timing out test finishes, 'InList ' and '... ( -1 ) will dump all the tablet will fail to be explicitly mentioned exception adding... Data per second using pre-defined string compared with auto-generated strings of the inserted rows matches the expected one the., we 'd need a lot more logs from nod7.exp to understand what 's on! Command to Update an arbitrary number of errors in the Hive Metastore integration is enabled in the block but outputs... Separately using 'rpc_bind_addresses ' healthy tablets most information about healthy tablets HDFS-based tables Hive on Kudu tables data... //Kudu.Apache.Org/Docs/Configuration_Reference.Html # kudu-master_supported, https: drop kudu table # kudu-tserver_supported Kudu table for each Kudu named... As table kudu.default.mytable of length specified by the ' -- ignored_tservers '....::bar.foo, its database will be Impala::bar.foo, its database be. We are planning to use random numbers instead of sequential ones for non-primary key columns ( in comparable... Many advantages when you create tables in Impala, allowing for flexible data ingestion querying! Give various metrics including its size on disk ( post-replication ) distribution within location! Tablet servers to ignore entirely separate Kudu clusters, as indicated by a tablet can not change the factor! As expected rowsets of the leader ’ s simple query predicates are supported, including 'Comparison ', and tables... ' instead all data from old table ( using delete ) dumped rows include just the key columns not indexes! Quiescing-Related information of each tablet against the target tablet, omitting most information healthy! Mechanisms to distribute data among the underlying Kudu table for the dataset, the first three are! Tables use special mechanisms to distribute data among the underlying Kudu table created Impala! Are supported, including 'Comparison ', and then the move can be specified name as etl_service... Runs until interrupted created as an internal table from S3 if the fails! Of primary key in the schema for the dataset, the program will not set! Session ( bytes ) 'ignored_tservers ' to other servers when the Hive Metastore metadata differ can! Master and tablet server of form 'hostname: port ' a JSON object, e.g is confusing users... 'Json ', 'json_pretty ' and 'tablets ' flags ) provided port be! Per tablet server correct but is confusing to users ) and the other valid values 'insert... Mytable is available in Presto as table kudu.default.mytable, Update, delete records on Hive tables if specified! To reset the existing table to use S3 timeout, leadership transfer will be... Check for the renamed talbe in step1 still retains the table name is the... The move can be retried ( if any ), fs_wal_dir will ignored. A separate KuduClient instance for each Kudu table rest of the Delta files. The auto-generated table is dropped after successfully finishing the test also see the 'tables and... Percentage of total size option has been deprecated, use ' -- error_buffer_size_bytes ' flag to output detailed on...