kudu remote_replica check 0 means 'unlimited'. Starting with Kudu 1.12.0, it is not required to run this tool to add or remove directories. * The 'Comparison' type support ⇐, <, =, > and >=, Whether to ignore entirely separate Kudu clusters, as indicated by a different set of master addresses. If the HMS is deployed in an HA configuration, multiple comma-separated addresses should be supplied. Usage: kudu tserver quiesce status Arguments: Usage: Arguments: Usage: Reply. This is the first release of Hive on Kudu. Usage: Example JSON input to create and start a cluster: Usage: Query predicates on columns. Hope that helps-Todd. There are several cases wrt drop range partitions that don't seem to work as expected. #11 0x0000000000555551 in PyEval_EvalCodeEx () No symbol table info available. Arguments: Whether to run an ordered or unordered scan. Usage: Usage: The Spark job, run as the etl_service user, is permitted to access the Kudu data via coarse-grained authorization. Arguments: Usage: Arguments: Either comma-separated list of destination Kudu master addresses where each address is of form 'hostname:port', or a cluster name if it has been configured in ${KUDU_CONFIG}/kudurc. kudu remote_replica delete Usage: kudu table rename_table [-nomodify_external_catalogs] All rows generated by a thread are inserted in the context of the same session. Use the 'checksum' flag to check that tablet data is consistent (also see the 'tables' and 'tablets' flags). 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. If false, only dumps the data. kudu local_replica dump rowset [-nodump_all_columns] [-nodump_metadata] [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-nrows=] [-rowset_index=] If the designated successor cannot catch up to the leader within one election timeout, leadership transfer will not occur. Initial value for the generator in sequential mode. 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. Maximum time to run the rebalancing, in seconds. 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. Good luck. Tables to include (comma-separated list of table names)If not specified, includes all tables. kudu tablet leader_step_down [-abrupt] [-new_leader_uuid=] If not provided, one is generated. Maximum total seconds to wait for a checksum scan to complete before timing out. STORED AS KUDU statements to connect to the appropriate Kudu server. Usage: Sections to print (comma-separated list of sections, available sections are: MASTER_SUMMARIES, TSERVER_SUMMARIES, VERSION_SUMMARIES, TABLET_SUMMARIES, TABLE_SUMMARIES, CHECKSUM_RESULTS and TOTAL_COUNT.) DELETE t1 FROM kudu_table t1 JOIN non_kudu_table t2 ON t1.x = t2.x; -- The tables can be joined in any order as long as the Kudu table -- is specified as the deletion target. kudu tablet change_config remove_replica If either '--use_random_pk' or '--use_random_non_pk' is specified with '--use_random' then this option will be ignored. The default value 'auto' colorizes output if the output is a terminal. If the copy fails, the new replica will be deleted automatically after some time, and then the move can be retried. Impala and Kudu is dropped, but the Kudu table is left intact, with all its data. 1. Arguments: Write default value of the column, should be provided as a JSON array, e.g. 6,373 Views 0 Kudos If empty, no database is used. Kudu does not allow you to change how a table is partitioned after creation, with the exception of adding or dropping range partitions. This connector provides a source (KuduInputFormat), a sink/output (KuduSink and KuduOutputFormat, respectively), as well a table source (KuduTableSource), an upsert table sink (KuduTableSink), and a catalog (KuduCatalog), to allow reading and writing to Kudu.To use this connector, add the following dependency to your project: Possible values: uuid, rpc-addresses, http-addresses, version, seqno, start_time and role. ["AND", [">=", "col1", "value"], ["NOTNULL", "col2"]] kudu tserver quiesce stop Usage: 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. The ranges themselves are given either in the table property range_partitions on creating the table. Although you can change the name of a column with the CHANGE clause, you cannot change the type of a column in a Kudu table. Note: The members of the new Raft config must be a subset of (or the same as) the members of the existing committed Raft config. Create Table Using Another Table. Usage: If so, consider increasing the size of the error buffer using the '--error_buffer_size_bytes' flag. kudu table drop_range_partition [-lower_bound_type=] [-upper_bound_type=] How data should be copied to the destination table. You cannot change the nullability of existing columns in a Kudu table. Usage: Available options are 'plain_concise', 'plain_full', 'json_pretty', and 'json_compact'. kudu tserver state exit_maintenance Alternatively, the tool can create the new table using the same table and partition schema as the source table. For an external table, the underlying Kudu table and its data remain after a DROP TABLE. Cambiar particiones. kudu tserver status kudu local_replica list [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-list_detail] Defaults to inclusive. Whether to run post-insertion scan to verify that the count of the inserted rows matches the expected number. kudu table list [-tables=] [-list_tablets] Size of the error buffer, per session (bytes). Usage: Non-alterable Column Types Kudu … 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. DROP TABLE customers PURGE; This DROP TABLE statement would drop the table called customers and issue a PURGE so that the space associated with the customers table is released. If false, dumped rows include just the key columns (in a comparable format). The new table gets the same column definitions. There are many advantages when you create tables in Impala using Apache Kudu as a storage format. This option has been deprecated, use '--use_random_pk' and/or '--use_random_non_pk' instead. This would also facilitate the pain point of incremental updates on fast moving/changing data loads . 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. Client generates more data per second using pre-defined string compared with auto-generated strings of the same length if run with the same CPU/memory configuration. UUIDs of tablet servers to ignore while rebalancing the cluster (comma-separated list). kudu local_replica dump data_dirs [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] Usage: Arguments: Usage: Arguments: Usage: Length of strings to put into string and binary columns. Usage: Drop orphan Hive Metastore tables which refer to non-existent Kudu tables. Arguments: Usage: In Kudu, doing a delete like this is basically like inserting as many rows as you are deleting, so this might not be what you want to do. But, luckily, if you have Oracle Database's Flashback features enabled, you can undrop a table! {"startCluster":{}} kudu master status kudu table delete [-nomodify_external_catalogs] e.g. Arguments: Usage: Possible values: database, table, type, owner, kudu.table_name, kudu.table_id, kudu.master_addresses, storage_handler. There are many advantages when you create tables in Impala using Apache Kudu as a storage format. Address of the Hive Metastore instance(s). Usage: Usage: 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. Impala Update Command on Kudu Tables; Update Impala Table using Intermediate or Temporary Tables ; Impala Update Command on Kudu Tables. The number of range partitions to create when this tool creates a new table. Such a staleness usually happens in case of a persistent problem with the cluster or when some unexpected concurrent activity is present (such as automatic recovery of failed replicas, etc. kudu table statistics kudu table column_set_compression kudu table delete_column Directory with write-ahead logs. If the move fails, the user should wait for any tablet copy to complete, and, if the copy succeeds, use remove_replica manually. In and higher, as part of improved support for writing to S3, Impala also removes the associated folder when dropping an internal table that resides on S3. Unlike traditional SQL syntax, the scan tool’s simple query predicates are represented in a simple JSON syntax. If true, dumps rowset metadata before dumping data. kudu perf tablet_scan [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-num_iters=] [-ordered_scan] If set true, then all ignored tablet servers must be placed into the 'maintenance mode'. '[">=", "col1", "value"]' Repair any inconsistencies in the filesystem. kudu tablet change_config change_replica_type kudu hms downgrade [-hive_metastore_sasl_enabled] [-hive_metastore_uris=] This setting is applicable to multi-location clusters only. kudu tserver get_flags [-all_flags] [-flags=] [-flag_tags=] 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. kudu cluster ksck [-checksum_cache_blocks] [-checksum_scan] [-checksum_scan_concurrency=] [-nochecksum_snapshot] [-checksum_timeout_sec=] [-color=] [-noconsensus] [-fetch_info_concurrency=] [-flags_categories_to_check=] [-ksck_format=] [-noquiescing_info] [-sections=] [-tables=] [-tablets=] Whether to use random numbers instead of sequential ones for non-primary key columns. Use the 'ksck_format' flag to output detailed information on cluster status even if no inconsistency is found in metadata. This setting is applicable to multi-location clusters only. A Kudu table named mytable is available in Presto as table kudu.default.mytable. 'json_pretty' produces pretty-printed json. 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. Drop table . [quickstart.cloudera:21000] > ALTER TABLE users DROP account_no; On executing the above query, Impala deletes the column named account_no displaying the following message. kudu pbc dump [-debug] [-oneline] [-json] 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. If specified, the tablet servers are effectively ignored by the rebalancer tool, they are not considered as a part of the cluster as well as the replicas on them. Arguments: Usage: Data Model. Note: The total number of partitions must be greater than 1. The recommended range for the threshold is [0.5, …) with the default value of 1.0. Usage: Usage: Setting to non-zero implicitly turns on manual flush mode. Arguments: String representation of the row’s primary key as a JSON array. e.g. {"createCluster":{"numTservers":3}} Arguments: Usage: Arguments: Print a message for each fix, but do not make modifications to Kudu or the Hive Metastore. log messages go to stderr instead of logfiles. If you create a new table using an existing table, the new table will be filled with the existing values from the old table… If not specified, the rebalancer tool will run on all the tablet servers in the cluster. Arguments: If true, permits the removal of a data directory that is configured for use by existing tablets. kudu local_replica delete [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-clean_unsafe] [-ignore_nonexistent] If this is not specified, the program will not start. If specified, logfiles are written into this directory instead of the default logging directory. Arguments: If true, the command to start quiescing will return an error if the tserver is not fully quiesced, i.e. Arguments: Usage: Usage: kudu master list [-columns=] [-format=] [-timeout_ms=] This flag is case-insensitive. 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. SQL DROP TABLE Example. kudu table create kudu cluster ksck ${kudu_master_host} | grep '| 1 |' | cut -f2 ' ' If there are tables there, you need to. For both ways see below for more details. Usage: The provided port must be for the HMS Thrift service. This statement dropped not only the brands table but also the foreign key constraint fk_brand from the cars table.. Arguments: Usage: Perform async flush per given number of rows added. 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. Arguments: Restrict output to a specific table by id, Restrict output to a specific table by name, Comma-separated list of fields to include in output. Must be VOTER or NON_VOTER. create/alter/drop table Impala supports creating, altering, and dropping tables using Kudu as the persistence layer. Number of rows to dump. kudu table column_remove_default pandas.pivot_table¶ pandas.pivot_table (data, values = None, index = None, columns = None, aggfunc = 'mean', fill_value = None, margins = False, dropna = True, margins_name = 'All', observed = False) [source] ¶ Create a spreadsheet-style pivot table as a DataFrame. 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. One of 'json', 'json_compact' or 'table'. This performs no parsing or interpretation of the data stored in the block but rather outputs its binary contents directly. sudo -u kudu kudu hms fix localhost --drop_orphan_hms_tables --force --ignore_other_clusters=false Remote error: failed to drop orphan HMS table db_name.table_name: failed to drop Hive Metastore table: TException - service has thrown: MetaException(message=Kudu table ID does not match the HMS entry) 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. Should the checksum scanner use a snapshot scan? The easiest method (with shortest code) to do this as mentioned in the documentaion is read the id (or all the primary keys) as dataframe and pass this to KuduContext.deleteRows.. import org.apache.kudu.spark.kudu._ val kuduMasters = Seq("kudu… Arguments: If true, allows the set_flag command to set a flag which is not explicitly marked as runtime-settable. Usage: A value of 0 autosizes based on the total system memory. kudu diagnose parse_stacks … kudu remote_replica dump Unlike a managed table, where no path is specified, an unmanaged table’s files are not deleted when you DROP the table. kudu local_replica copy_from_remote [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] 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. The tables follow the same internal / external approach as other tables in Impala, allowing for flexible data ingestion and querying. 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. kudu table column_set_block_size IPTABLES manual practico, tutorial de iptables con ejemplos de firewall en red local, firewall en red local con dmz, firewall entre redes, depuracion de iptables, etc. kudu local_replica data_size [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-format=] If non-empty, all_flags is ignored. If not set, the configuration from the Kudu master is used, so this flag should not be overriden in typical situations. kudu fs dump block [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] For all the configuration options pass --helpfull or see https://kudu.apache.org/docs/configuration_reference.html#kudu-tserver_supported If left empty, the test automatically creates a table of pre-defined columnar structure with unique name and uses it to insert auto-generated data. kudu wal dump [-print_entries=] [-noprint_meta] [-truncate_data=] kudu fs check [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] [-repair] Usage: With kudu delete rows the ids has to be explicitly mentioned. fix_inconsistent_tables (optional) Fix tables whose Kudu … Whether to ignore non-existent tablet replicas when deleting: if set to 'true', the tool does not report an error if the requested tablet replica to remove is not found. Comma-separated list of tags used to restrict which flags are returned. '[1, "foo", 2, "bar"]'. disable_cross_location_rebalancing (optional). Whether to use random numbers instead of sequential ones for primary key columns. This flag is useful primarily when the Hive Metastore integration is enabled in the cluster. Arguments: Serialization method to be used by the control shell. Usage: 3- Insert data from new table into old table. Arguments: Whether to show column attributes, including column encoding type, compression type, and default read/write value. The most common configuration flags are described below. This patch adds the ability to modify these from Impala using ALTER. 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. Comma-separated list of configurations to display. Arguments: Whether to modify external catalogs, such as the Hive Metastore, when renaming or dropping a table. Usage: Arguments: UUID of the tablet server that should host the new replica. A copy of an existing table can also be created using CREATE TABLE. Arguments: Copy table data to another table; the two tables could be in the same cluster or not. Show row count and scanning time of tablets in a table. DROP TABLE IF EXISTS kudutest.person_stage; CREATE TABLE kudutest.person_stage PRIMARY KEY (person_id) PARTITION BY HASH(person_id) PARTITIONS 3 STORED AS KUDU AS SELECT * FROM kudutest.person_live; Before you proceed with the next steps, it is crucial to make sure your staging table is good - you are about to swap production table with it. kudu tserver quiesce start [-error_if_not_fully_quiesced] Actually, the term “drop” refers to any object in Oracle (e.g. This is not guaranteed to be safe because it also removes the consensus metadata (including Raft voting record) for the specified tablet, which violates the Raft vote durability requirements. For compatibility with the S3 write support in Impala, follow these steps for querying table through Impala: Use native Hadoop techniques, such as hadoop fs -cp or INSERT in Impala or Hive to create data files in S3. CREATE/ALTER/DROP TABLE Impala supports creating, altering, and dropping tables using Kudu as the persistence layer. The name of the destination table the data will be copied to. 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. Syntax. Kudu recently added the ability to alter a column's default value and storage attributes (KUDU-861). '{"table_name":"test","schema":{"columns":[{"column_name":"id","column_type":"INT32","default_value":"1"},{"column_name":"key","column_type":"INT64","is_nullable":false,"comment":"range key"},{"column_name":"name","column_type":"STRING","is_nullable":false,"comment":"user name"}],"key_column_names":["id", "key"]},"partition":{"hash_partitions":[{"columns":["id"],"num_buckets":2,"seed":100}],"range_partition":{"columns":["key"],"range_bounds":[{"upper_bound":{"bound_type":"inclusive","bound_values":["2"]}},{"lower_bound": {"bound_type":"exclusive","bound_values": ["2"]},"upper_bound":{"bound_type":"inclusive","bound_values":["3"]}}]}},"extra_configs":{"configs":{"kudu.table.history_max_age_sec":"3600"}},"num_replicas":3}'. May be the same as fs_data_dirs. The configured value must match the Hive hive.metastore.uris configuration. ERROR: AnalysisException: Not allowed to set 'kudu.table_name' manually for managed Kudu tables. If none exists, fs_wal_dir will be used as the metadata directory. With kudu delete rows the ids has to be explicitly mentioned. 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. drop table toys; This removes the whole table and its data. Kudu considerations: Kudu tables can be managed or external, the same as with HDFS-based tables. #Update April 29th 2016 Hive on Spark is working but there is a connection drop in my InputFormat, which is currently running on a Band-Aid. kudu fs update_dirs [-force] [-fs_data_dirs=] [-fs_metadata_dir=] [-fs_wal_dir=] Arguments: Usage: Pre-defined string to write into binary and string columns. If a port is not provided, defaults to 9083. The ranges themselves are given either in the table property range_partitions on creating the table. Usage: kudu perf loadgen [-auto_database=] [-buffer_flush_watermark_pct=] [-buffer_size_bytes=] [-buffers_num=] [-error_buffer_size_bytes=] [-flush_per_n_rows=] [-keep_auto_table] [-num_rows_per_thread=] [-num_threads=] [-run_cleanup] [-run_scan] [-seq_start=] [-show_first_n_errors=] [-string_fixed=] [-string_len=] [-table_name=] [-table_num_hash_partitions=] [-table_num_range_partitions=] [-table_num_replicas=] [-nouse_client_per_thread] [-use_random] [-use_random_pk] [-use_random_non_pk] kudu master dump_memtrackers [-format=] [-memtracker_output=