cluster: Operate on a Kudu clusterksck: Check the health of a Kudu cluster By default, ksck checks that master and tablet server processes are running, and that table metadata is consistent. Use the 'checksum' flag to check that tablet data is consistent (also see the 'tables' and 'tablets' flags). Use the 'checksum_snapshot' along with 'checksum' if the table or tablets are actively receiving inserts or updates.
Usage:
kudu cluster ksck <master_addresses> [-checksum_cache_blocks] [-checksum_scan] [-checksum_scan_concurrency=<concurrency>] [-nochecksum_snapshot] [-checksum_timeout_sec=<sec>] [-color=<color>] [-noconsensus] [-tables=<tables>] [-tablets=<tablets>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
checksum_cache_blocks (optional) |
Should the checksum scanners cache the read blocks |
bool |
|
checksum_scan (optional) |
Perform a checksum scan on data in the cluster. |
bool |
|
checksum_scan_concurrency (optional) |
Number of concurrent checksum scans to execute per tablet server. |
int32 |
|
checksum_snapshot (optional) |
Should the checksum scanner use a snapshot scan |
bool |
|
checksum_timeout_sec (optional) |
Maximum total seconds to wait for a checksum scan to complete before timing out. |
int32 |
|
color (optional) |
Specifies whether output should be colorized. The default value 'auto' colorizes output if the output is a terminal. The other valid values are 'always' or 'never'. |
string |
|
consensus (optional) |
Whether to check the consensus state from each tablet against the master. |
bool |
|
tables (optional) |
Tables to check (comma-separated list of names). If not specified, checks all tables. |
string |
none |
tablets (optional) |
Tablets to check (comma-separated list of IDs) If not specified, checks all tablets. |
string |
none |
fs: Operate on a local Kudu filesystemcheck: Check a Kudu filesystem for inconsistencies Usage:
kudu fs check [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-repair]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
repair (optional) |
Repair any inconsistencies in the filesystem. |
bool |
|
format: Format a new Kudu filesystem Usage:
kudu fs format [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-uuid=<uuid>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
uuid (optional) |
The uuid to use in the filesystem. If not provided, one is generated |
string |
none |
dump: Dump a Kudu filesystemblock: Dump the binary contents of a data block This performs no parsing or interpretation of the data stored in the block but rather outputs its binary contents directly.
Usage:
kudu fs dump block <block_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
block_id |
block identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
cfile: Dump the contents of a CFile (column file) This interprets the contents of a CFile-formatted block and outputs the decoded row data.
Usage:
kudu fs dump cfile <block_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-noprint_meta] [-noprint_rows]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
block_id |
block identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
print_meta (optional) |
Include metadata in output |
bool |
|
print_rows (optional) |
Print each row in the CFile |
bool |
|
tree: Dump the tree of a Kudu filesystem Usage:
kudu fs dump tree [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
uuid: Dump the UUID of a Kudu filesystem Usage:
kudu fs dump uuid [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
local_replica: Operate on local tablet replicas via the local filesystemcopy_from_remote: Copy a tablet replica from a remote server Usage:
kudu local_replica copy_from_remote <tablet_id> <source> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
source |
Source RPC address of form hostname:port |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
data_size: Summarize the data size/space usage of the given local replica(s). Usage:
kudu local_replica data_size <tablet_id_pattern> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-format=<format>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id_pattern |
Tablet identifier pattern. This argument supports basic glob syntax: '*' matches 0 or more wildcard characters. |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
format (optional) |
Format to use for printing list output tables. Possible values: pretty, space, tsv, csv, and json |
string |
|
delete: Delete a tablet replica from the local filesystem. By default, leaves a tombstone record. Usage:
kudu local_replica delete <tablet_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-clean_unsafe]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
clean_unsafe (optional) |
Delete the local replica completely, not leaving a tombstone. 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. |
bool |
|
list: Show list of tablet replicas in the local filesystem Usage:
kudu local_replica list [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-list_detail]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
list_detail (optional) |
Print partition info for the local replicas |
bool |
|
cmeta: Operate on a local tablet replica’s consensus metadata fileprint_replica_uuids: Print all tablet replica peer UUIDs found in a tablet’s Raft configuration Usage:
kudu local_replica cmeta print_replica_uuids <tablet_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
rewrite_raft_config: Rewrite a tablet replica’s Raft configuration Usage:
kudu local_replica cmeta rewrite_raft_config <tablet_id> <peers>… [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
peers… |
List of peers where each peer is of form 'uuid:hostname:port' |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
set_term: Bump the current term stored in consensus metadata Usage:
kudu local_replica cmeta set_term <tablet_id> <term> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
term |
the new raft term (must be greater than the current term) |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
dump: Dump a Kudu filesystemblock_ids: Dump the IDs of all blocks belonging to a local replica Usage:
kudu local_replica dump block_ids <tablet_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
meta: Dump the metadata of a local replica Usage:
kudu local_replica dump meta <tablet_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
rowset: Dump the rowset contents of a local replica Usage:
kudu local_replica dump rowset <tablet_id> [-dump_data] [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-metadata_only] [-nrows=<nrows>] [-rowset_index=<index>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
dump_data (optional) |
Dump the data for each column in the rowset. |
bool |
|
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
metadata_only (optional) |
Only dump the block metadata when printing blocks. |
bool |
|
nrows (optional) |
Number of rows to dump |
int64 |
|
rowset_index (optional) |
Index of the rowset in local replica, default value(-1) will dump all the rowsets of the local replica |
int64 |
|
wals: Dump all WAL (write-ahead log) segments of a local replica Usage:
kudu local_replica dump wals <tablet_id> [-fs_wal_dir=<dir>] [-fs_data_dirs=<dirs>] [-print_entries=<entries>] [-noprint_meta] [-truncate_data=<data>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
fs_wal_dir (optional) |
Directory with write-ahead logs. If this is not specified, the program will not start. May be the same as fs_data_dirs |
string |
none |
fs_data_dirs (optional) |
Comma-separated list of directories with data blocks. If this is not specified, fs_wal_dir will be used as the sole data block directory. |
string |
none |
print_entries (optional) |
How to print entries: false|0|no = don’t print true|1|yes|decoded = print them decoded pb = print the raw protobuf id = print only their ids |
string |
|
print_meta (optional) |
Include metadata in output |
bool |
|
truncate_data (optional) |
Truncate the data fields to the given number of bytes before printing. Set to 0 to disable |
int32 |
|
master: Operate on a Kudu Masterset_flag: Change a gflag value on a Kudu Master Usage:
kudu master set_flag <master_address> <flag> <value> [-force]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_address |
Address of a Kudu Master of form 'hostname:port'. Port may be omitted if the Master is bound to the default port. |
string |
none |
flag |
Name of the gflag |
string |
none |
value |
New value for the gflag |
string |
none |
force (optional) |
If true, allows the set_flag command to set a flag which is not explicitly marked as runtime-settable. Such flag changes may be simply ignored on the server, or may cause the server to crash. |
bool |
|
status: Get the status of a Kudu Master Usage:
kudu master status <master_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_address |
Address of a Kudu Master of form 'hostname:port'. Port may be omitted if the Master is bound to the default port. |
string |
none |
timestamp: Get the current timestamp of a Kudu Master Usage:
kudu master timestamp <master_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_address |
Address of a Kudu Master of form 'hostname:port'. Port may be omitted if the Master is bound to the default port. |
string |
none |
list: List masters in a Kudu cluster Usage:
kudu master list <master_addresses> [-columns=<columns>] [-format=<format>] [-timeout_ms=<ms>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
columns (optional) |
Comma-separated list of master info fields to include in output. Possible values: uuid, rpc-addresses, http-addresses, version, and seqno |
string |
|
format (optional) |
Format to use for printing list output tables. Possible values: pretty, space, tsv, csv, and json |
string |
|
timeout_ms (optional) |
RPC timeout in milliseconds |
int64 |
|
pbc: Operate on PBC (protobuf container) filesdump: Dump a PBC (protobuf container) file Usage:
kudu pbc dump <path> [-oneline] [-json]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
path |
path to PBC file |
string |
none |
oneline (optional) |
print each protobuf on a single line |
bool |
|
json (optional) |
print protobufs in JSON format |
bool |
|
edit: Edit a PBC (protobuf container) file Usage:
kudu pbc edit <path>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
path |
path to PBC file |
string |
none |
perf: Measure the performance of a Kudu clusterloadgen: Run load generation with optional scan afterwards Run load generation tool which inserts auto-generated data into an existing or auto-created table as fast as possible. If requested, also scan the inserted rows to check whether the actual count of inserted rows matches the expected one.
Usage:
kudu perf loadgen <master_addresses> [-buffer_flush_watermark_pct=<pct>] [-buffer_size_bytes=<bytes>] [-buffers_num=<num>] [-flush_per_n_rows=<rows>] [-keep_auto_table] [-num_rows_per_thread=<thread>] [-num_threads=<threads>] [-run_scan] [-seq_start=<start>] [-show_first_n_errors=<errors>] [-string_fixed=<fixed>] [-string_len=<len>] [-table_name=<name>] [-table_num_buckets=<buckets>] [-table_num_replicas=<replicas>] [-use_random]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of master addresses to run against. Addresses are in 'hostname:port' form where port may be omitted if a master server listens at the default port. |
string |
none |
buffer_flush_watermark_pct (optional) |
Mutation buffer flush watermark, in percentage of total size. |
double |
|
buffer_size_bytes (optional) |
Size of the mutation buffer, per session (bytes). |
int32 |
|
buffers_num (optional) |
Number of mutation buffers per session. |
int32 |
|
flush_per_n_rows (optional) |
Perform async flush per given number of rows added. Setting to non-zero implicitly turns on manual flush mode. |
int32 |
|
keep_auto_table (optional) |
If using the auto-generated table, enabling this option retains the table populated with the data after the test finishes. By default, the auto-generated table is dropped after sucessfully finishing the test. NOTE: this parameter has no effect if using already existing table (see the '--table_name' flag): the existing tables nor their data are never dropped/deleted. |
bool |
|
num_rows_per_thread (optional) |
Number of rows each thread generates and inserts; 0 means unlimited. All rows generated by a thread are inserted in the context of the same session. |
uint64 |
|
num_threads (optional) |
Number of generator threads to run. Each thread runs its own KuduSession. |
int32 |
|
run_scan (optional) |
Whether to run post-insertion scan to verify that the count of the inserted rows matches the expected number. If enabled, the scan is run only if no errors were encountered while inserting the generated rows. |
bool |
|
seq_start (optional) |
Initial value for the generator in sequential mode. 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). |
uint64 |
|
show_first_n_errors (optional) |
Output detailed information on the specified number of first n errors (if any). |
int32 |
|
string_fixed (optional) |
Pre-defined string to write into binary and string columns. 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. If left empty, then auto-generated strings of length specified by the '--string_len' parameter are used instead. |
string |
none |
string_len (optional) |
Length of strings to put into string and binary columns. This parameter is not in effect if '--string_fixed' is specified. |
int32 |
|
table_name (optional) |
Name of an existing table to use for the test. The test will determine the structure of the table schema and populate it with data accordingly. 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. The auto-created table is dropped upon successful completion of the test if not overridden by the '--keep_auto_table' flag. If running the test against an already existing table, it’s highly recommended to use a dedicated table created just for testing purposes: the existing table nor its data is never dropped/deleted. |
string |
none |
table_num_buckets (optional) |
The number of buckets to create when this tool creates a new table. |
int32 |
|
table_num_replicas (optional) |
The number of replicas for the auto-created table; 0 means 'use server-side default'. |
int32 |
|
use_random (optional) |
Whether to use random numbers instead of sequential ones. In case of using random numbers collisions are possible over the data for columns with unique constraint (e.g. primary key). |
bool |
|
remote_replica: Operate on remote tablet replicas on a Kudu Tablet Servercheck: Check if all tablet replicas on a Kudu Tablet Server are running Usage:
kudu remote_replica check <tserver_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
copy: Copy a tablet replica from one Kudu Tablet Server to another Usage:
kudu remote_replica copy <tablet_id> <src_address> <dst_address> [-force_copy]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tablet_id |
Tablet Identifier |
string |
none |
src_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
dst_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
force_copy (optional) |
Force the copy when the destination tablet server has this replica |
bool |
|
delete: Delete a tablet replica from a Kudu Tablet Server Usage:
kudu remote_replica delete <tserver_address> <tablet_id> <reason>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
reason |
Reason for deleting the replica |
string |
none |
dump: Dump the data of a tablet replica on a Kudu Tablet Server Usage:
kudu remote_replica dump <tserver_address> <tablet_id>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
list: List all tablet replicas on a Kudu Tablet Server Usage:
kudu remote_replica list <tserver_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
unsafe_change_config: Force the specified replica to adopt a new Raft config The members of the new Raft config must be a subset of (or the same as) the members of the existing committed Raft config on that replica.
Usage:
kudu remote_replica unsafe_change_config <tserver_address> <tablet_id> <peer uuids>…
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
peer uuids… |
List of peer uuids to be part of new config |
string |
none |
table: Operate on Kudu tablesdelete: Delete a table Usage:
kudu table delete <master_addresses> <table_name>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
table_name |
Name of the table to delete |
string |
none |
list: List all tables Usage:
kudu table list <master_addresses> [-list_tablets]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
list_tablets (optional) |
Include tablet and replica UUIDs in the output |
bool |
|
tablet: Operate on remote Kudu tabletsleader_step_down: Force the tablet’s leader replica to step down Usage:
kudu tablet leader_step_down <master_addresses> <tablet_id>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
change_config: Change a tablet’s Raft configurationadd_replica: Add a new replica to a tablet’s Raft configuration Usage:
kudu tablet change_config add_replica <master_addresses> <tablet_id> <ts_uuid> <replica_type>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
ts_uuid |
UUID of the tablet server that should host the new replica |
string |
none |
replica_type |
New replica’s type. Must be VOTER or NON-VOTER. |
string |
none |
change_replica_type: Change the type of an existing replica in a tablet’s Raft configuration Usage:
kudu tablet change_config change_replica_type <master_addresses> <tablet_id> <ts_uuid> <replica_type>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
ts_uuid |
UUID of the tablet server hosting the existing replica |
string |
none |
replica_type |
Existing replica’s new type. Must be VOTER or NON-VOTER. |
string |
none |
move_replica: Move a tablet replica from one tablet server to another The replica move tool effectively moves a replica from one tablet server to another by adding a replica to the new server and then removing it from the old one. It requires that ksck return no errors when run against the target tablet. If the move fails, the user should wait for any tablet copy to complete, and, if the copy succeeds, use remove_replica manually. If the copy fails, the new replica will be deleted automatically after some time, and then the move can be retried.
Usage:
kudu tablet change_config move_replica <master_addresses> <tablet_id> <from_ts_uuid> <to_ts_uuid>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
from_ts_uuid |
UUID of the tablet server to move from |
string |
none |
to_ts_uuid |
UUID of the tablet server to move to |
string |
none |
remove_replica: Remove an existing replica from a tablet’s Raft configuration Usage:
kudu tablet change_config remove_replica <master_addresses> <tablet_id> <ts_uuid>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
tablet_id |
Tablet Identifier |
string |
none |
ts_uuid |
UUID of the tablet server hosting the existing replica |
string |
none |
tserver: Operate on a Kudu Tablet Serverset_flag: Change a gflag value on a Kudu Tablet Server Usage:
kudu tserver set_flag <tserver_address> <flag> <value> [-force]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
flag |
Name of the gflag |
string |
none |
value |
New value for the gflag |
string |
none |
force (optional) |
If true, allows the set_flag command to set a flag which is not explicitly marked as runtime-settable. Such flag changes may be simply ignored on the server, or may cause the server to crash. |
bool |
|
status: Get the status of a Kudu Tablet Server Usage:
kudu tserver status <tserver_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
timestamp: Get the current timestamp of a Kudu Tablet Server Usage:
kudu tserver timestamp <tserver_address>
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
tserver_address |
Address of a Kudu Tablet Server of form 'hostname:port'. Port may be omitted if the Tablet Server is bound to the default port. |
string |
none |
list: List tablet servers in a Kudu cluster Usage:
kudu tserver list <master_addresses> [-columns=<columns>] [-format=<format>] [-timeout_ms=<ms>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
master_addresses |
Comma-separated list of Kudu Master addresses where each address is of form 'hostname:port' |
string |
none |
columns (optional) |
Comma-separated list of tserver info fields to include in output. Possible values: uuid, rpc-addresses, http-addresses, version, seqno, and heartbeat |
string |
|
format (optional) |
Format to use for printing list output tables. Possible values: pretty, space, tsv, csv, and json |
string |
|
timeout_ms (optional) |
RPC timeout in milliseconds |
int64 |
|
wal: Operate on WAL (write-ahead log) filesdump: Dump a WAL (write-ahead log) file Usage:
kudu wal dump <path> [-print_entries=<entries>] [-noprint_meta] [-truncate_data=<data>]
Arguments:
| Name | Description | Type | Default |
|---|---|---|---|
path |
path to WAL file |
string |
none |
print_entries (optional) |
How to print entries: false|0|no = don’t print true|1|yes|decoded = print them decoded pb = print the raw protobuf id = print only their ids |
string |
|
print_meta (optional) |
Include metadata in output |
bool |
|
truncate_data (optional) |
Truncate the data fields to the given number of bytes before printing. Set to 0 to disable |
int32 |
|