SQL Procedures
- Usage
  - Named arguments
  - Positional arguments
- help
Commit management
Metadata Table management
Table information
Table services
Bootstrap
Version management
- upgrade_table
- downgrade_table

SQL Procedures

Stored procedures are available when use Hudi SparkSQL extensions in all spark’s version.

Usage

CALL supports passing arguments by name (recommended) or by position. Mixing position and named arguments is also supported.

Named arguments

All procedure arguments are named. When passing arguments by name, arguments can be in any order and any optional argument can be omitted.

CALL system.procedure_name(arg_name_2 => arg_2, arg_name_1 => arg_1, ... arg_name_n => arg_n);

Positional arguments

When passing arguments by position, the arguments may be omitted if they are optional.

CALL system.procedure_name(arg_1, arg_2, ... arg_n);

note: The system here has no practical meaning, the complete procedure name is system.procedure_name.

help

Show parameters and outputTypes of a procedure.

Input

Parameter Name	Type	Required	Default Value	Description
cmd	String	N	None	name of a procedure

Output

Output Name	Type
result	String

Example

call help(cmd => 'show_commits');

result
parameters: param type_name default_value required table string None true limit integer 10 false outputType: name type_name nullable metadata commit_time string true {} action string true {} total_bytes_written long true {} total_files_added long true {} total_files_updated long true {} total_partitions_written long true {} total_records_written long true {} total_update_records_written long true {} total_errors long true {}

result

parameters:
param type_name default_value required
table string None true
limit integer 10 false
outputType:
name type_name nullable metadata
commit_time string true {}
action string true {}
total_bytes_written long true {}
total_files_added long true {}
total_files_updated long true {}
total_partitions_written long true {}
total_records_written long true {}
total_update_records_written long true {}
total_errors long true {}

Commit management

show_commits

Show commits’ info.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
commit_time	String
total_bytes_written	Long
total_files_added	Long
total_files_updated	Long
total_partitions_written	Long
total_records_written	Long
total_update_records_written	Long
total_errors	Long

Example

call show_commits(table => 'test_hudi_table', limit => 10);

commit_time	total_bytes_written	total_files_added	total_files_updated	total_partitions_written	total_records_written
20220216171049652	432653	0	1	1	0
20220216171027021	435346	1	0	1	1
20220216171019361	435349	1	0	1	1

show_commits_metadata

Show commits’ metadata.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
commit_time	String
action	String
partition	String
file_id	String
previous_commit	String
num_writes	Long
num_inserts	Long
num_deletes	Long
num_update_writes	String
total_errors	Long
total_log_blocks	Long
total_corrupt_logblocks	Long
total_rollback_blocks	Long
total_log_records	Long
total_updated_records_compacted	Long
total_bytes_written	Long

Example

call show_commits_metadata(table => 'test_hudi_table');

commit_time	action	partition	file_id	previous_commit	num_writes	num_inserts	num_deletes	total_bytes_written
20220109225319449	commit	dt=2021-05-03	d0073a12-085d-4f49-83e9-402947e7e90a-0	null	1	1	0	435349
20220109225311742	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	20220109214830592	1	1	0	435340
20220109225301429	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	20220109214830592	1	1	0	435340
20220109214830592	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	20220109191631015	0	0	1	432653
20220109214830592	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	20220109191648181	0	0	1	432653
20220109191648181	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	null	1	1	0	435341
20220109191631015	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	null	1	1	0	435341

show_commit_extra_metadata

Show commits’ extra metadata.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
instant_time	String	N	None	Instant time
metadata_key	String	N	None	Key of metadata

Output

Output Name	Type
instant_time	String
action	String
metadata_key	String
metadata_value	String

Example

call show_commit_extra_metadata(table => 'test_hudi_table');

instant_time	action	metadata_key	metadata_value
20230206174349556	deltacommit	schema	{“type”:”record”,”name”:”hudi_mor_tbl”,”fields”:[{“name”:”_hoodie_commit_time”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_commit_seqno”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_record_key”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_partition_path”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_file_name”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”id”,”type”:”int”},{“name”:”ts”,”type”:”long”}]}
20230206174349556	deltacommit	latest_schema	{“max_column_id”:8,”version_id”:20230206174349556,”type”:”record”,”fields”:[{“id”:0,”name”:”_hoodie_commit_time”,”optional”:true,”type”:”string”,”doc”:””},{“id”:1,”name”:”_hoodie_commit_seqno”,”optional”:true,”type”:”string”,”doc”:””},{“id”:2,”name”:”_hoodie_record_key”,”optional”:true,”type”:”string”,”doc”:””},{“id”:3,”name”:”_hoodie_partition_path”,”optional”:true,”type”:”string”,”doc”:””},{“id”:4,”name”:”_hoodie_file_name”,”optional”:true,”type”:”string”,”doc”:””},{“id”:5,”name”:”id”,”optional”:false,”type”:”int”},{“id”:8,”name”:”ts”,”optional”:false,”type”:”long”}]}

show_archived_commits

Show archived commits.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
start_ts	String	N	“”	Start time for commits, default: now - 10 days
end_ts	String	N	“”	End time for commits, default: now - 1 day

Output

Output Name	Type
commit_time	String
total_bytes_written	Long
total_files_added	Long
total_files_updated	Long
total_partitions_written	Long
total_records_written	Long
total_update_records_written	Long
total_errors	Long

Example

call show_archived_commits(table => 'test_hudi_table');

commit_time	total_bytes_written	total_files_added	total_files_updated	total_partitions_written	total_records_written
20220216171049652	432653	0	1	1	0
20220216171027021	435346	1	0	1	1
20220216171019361	435349	1	0	1	1

show_archived_commits_metadata

Show archived commits’ metadata.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
start_ts	String	N	“”	Start time for commits, default: now - 10 days
end_ts	String	N	“”	End time for commits, default: now - 1 day

Output

Output Name	Type
commit_time	String
action	String
partition	String
file_id	String
previous_commit	String
num_writes	Long
num_inserts	Long
num_deletes	Long
num_update_writes	String
total_errors	Long
total_log_blocks	Long
total_corrupt_logblocks	Long
total_rollback_blocks	Long
total_log_records	Long
total_updated_records_compacted	Long
total_bytes_written	Long

Example

call show_archived_commits_metadata(table => 'test_hudi_table');

commit_time	action	partition	file_id	previous_commit	num_writes	num_inserts	num_deletes	total_bytes_written
20220109225319449	commit	dt=2021-05-03	d0073a12-085d-4f49-83e9-402947e7e90a-0	null	1	1	0	435349
20220109225311742	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	20220109214830592	1	1	0	435340
20220109225301429	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	20220109214830592	1	1	0	435340
20220109214830592	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	20220109191631015	0	0	1	432653
20220109214830592	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	20220109191648181	0	0	1	432653
20220109191648181	commit	dt=2021-05-02	b3b32bac-8a44-4c4d-b433-0cb1bf620f23-0	null	1	1	0	435341
20220109191631015	commit	dt=2021-05-01	0d7298b3-6b55-4cff-8d7d-b0772358b78a-0	null	1	1	0	435341

call show_archived_commits(table => 'test_hudi_table');

commit_time	total_bytes_written	total_files_added	total_files_updated	total_partitions_written	total_records_written
20220216171049652	432653	0	1	1	0
20220216171027021	435346	1	0	1	1
20220216171019361	435349	1	0	1	1

show_commit_files

Show files of a commit.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
instant_time	String	Y	None	Instant time

Output

Output Name	Type
action	String
partition_path	String
file_id	String
previous_commit	String
total_records_updated	Long
total_records_written	Long
total_bytes_written	Long
total_errors	Long
file_size	Long

Example

call show_commit_files(table => 'test_hudi_table', instant_time => '20230206174349556');

action	partition_path	file_id	previous_commit	total_records_updated	total_records_written	total_bytes_written	total_errors	file_size
deltacommit	dt=2021-05-03	7fb52523-c7f6-41aa-84a6-629041477aeb-0	null	0	1	434768	0	434768

show_commit_partitions

Show partitions of a commit.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
instant_time	String	Y	None	Instant time

Output

Output Name	Type
action	String
partition_path	String
total_files_added	Long
total_files_updated	Long
total_records_inserted	Long
total_records_updated	Long
total_bytes_written	Long
total_errors	Long

Example

call show_commit_partitions(table => 'test_hudi_table', instant_time => '20230206174349556');

action	partition_path	total_files_added	total_files_updated	total_records_inserted	total_records_updated	total_bytes_written	total_errors
deltacommit	dt=2021-05-03	7fb52523-c7f6-41aa-84a6-629041477aeb-0	0	1	434768	0	0

show_commit_write_stats

Show write statistics of a commit.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
instant_time	String	Y	None	Instant time

Output

Output Name	Type
action	String
total_bytes_written	Long
total_records_written	Long
avg_record_size	Long

Example

call show_commit_write_stats(table => 'test_hudi_table', instant_time => '20230206174349556');

action	total_bytes_written	total_records_written	avg_record_size
deltacommit	434768	1	434768

show_rollbacks

Show rollback commits.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
instant	String
rollback_instant	String
total_files_deleted	Int
time_taken_in_millis	Long
total_partitions	Int

Example

call show_rollbacks(table => 'test_hudi_table');

instant	rollback_instant	total_files_deleted	time_taken_in_millis	time_taken_in_millis
deltacommit	434768	1	434768	2

show_rollback_detail

Show details of a rollback commit.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned
instant_time	String	Y	None	Instant time

Output

Output Name	Type
instant	String
rollback_instant	String
partition	String
deleted_file	String
succeeded	Int

Example

call show_rollback_detail(table => 'test_hudi_table', instant_time => '20230206174349556');

instant	rollback_instant	partition	deleted_file	succeeded
deltacommit	434768	1	434768	2

commits_compare

Compare commit with another path.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
path	String	Y	None	Path of table

Output

Output Name	Type
compare_detail	String

Example

call commits_compare(table => 'test_hudi_table', path => 'hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table');

compare_detail
Source test_hudi_table is ahead by 0 commits. Commits to catch up - []

archive_commits

archive commits.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	N	None	Hudi table name
path	String	N	None	Path of table
min_commits	Int	N	20	Similar to hoodie.keep.max.commits, but controls the minimum number of instants to retain in the active timeline.
max_commits	Int	N	30	Archiving service moves older entries from timeline into an archived log after each write, to keep the metadata overhead constant, even as the table size grows. This config controls the maximum number of instants to retain in the active timeline.
retain_commits	Int	N	10	Archiving of instants is batched in best-effort manner, to pack more instants into a single archive log. This config controls such archival batch size.
enable_metadata	Boolean	N	false	Enable the internal metadata table

Output

Output Name	Type
result	Int

Example

call archive_commits(table => 'test_hudi_table');

result
0

export_instants

extract instants to local folder.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
local_folder	String	Y	None	Local folder
limit	Int	N	-1	Number of instants to be exported
actions	String	N	clean,commit,deltacommit,rollback,savepoint,restore	Commit action
desc	Boolean	N	false	Descending order

Output

Output Name	Type
export_detail	String

Example

call export_instants(table => 'test_hudi_table', local_folder => '/tmp/folder');

export_detail
Exported 6 Instants to /tmp/folder

rollback_to_instant

Rollback a table to the commit that was current at some time.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
rollback_result	Boolean

Example

Roll back test_hudi_table to one instant

call rollback_to_instant(table => 'test_hudi_table', instant_time => '20220109225319449');

rollback_result
true

create_savepoint

Create a savepoint to hudi’s table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
commit_time	String	Y	None	Commit time
user	String	N	“”	User name
comments	String	N	“”	Comments

Output

Output Name	Type
create_savepoint_result	Boolean

Example

call create_savepoint(table => 'test_hudi_table', commit_time => '20220109225319449');

create_savepoint_result
true

show_savepoints

Show savepoints.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
savepoint_time	String

Example

call show_savepoints(table => 'test_hudi_table');

savepoint_time
20220109225319449
20220109225311742
20220109225301429

delete_savepoint

Delete a savepoint to hudi’s table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
instant_time	String	Y	None	Instant time

Output

Output Name	Type
delete_savepoint_result	Boolean

Example

Delete a savepoint to test_hudi_table

call delete_savepoint(table => 'test_hudi_table', instant_time => '20220109225319449');

delete_savepoint_result
true

rollback_to_savepoint

Rollback a table to the commit that was current at some time.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
instant_time	String	Y	None	Instant time

Output

Output Name	Type
rollback_savepoint_result	Boolean

Example

Rollback test_hudi_table to one savepoint

call rollback_to_savepoint(table => 'test_hudi_table', instant_time => '20220109225319449');

rollback_savepoint_result
true

copy_to_temp_view

copy table to a temporary view.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
query_type	String	N	“snapshot”	Whether data needs to be read, in `incremental` mode (new data since an instantTime) (or) `read_optimized` mode (obtain latest view, based on base files) (or) `snapshot` mode (obtain latest view, by merging base and (if any) log files)
view_name	String	Y	None	Name of view
begin_instance_time	String	N	“”	Begin instance time
end_instance_time	String	N	“”	End instance time
as_of_instant	String	N	“”	As of instant time
replace	Boolean	N	false	Replace an existed view
global	Boolean	N	false	Global view

Output

Output Name	Type
status	Boolean

Example

call copy_to_temp_view(table => 'test_hudi_table', view_name => 'copy_view_test_hudi_table');

status
0

copy_to_table

copy table to a new table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
query_type	String	N	“snapshot”	Whether data needs to be read, in `incremental` mode (new data since an instantTime) (or) `read_optimized` mode (obtain latest view, based on base files) (or) `snapshot` mode (obtain latest view, by merging base and (if any) log files)
new_table	String	Y	None	Name of new table
begin_instance_time	String	N	“”	Begin instance time
end_instance_time	String	N	“”	End instance time
as_of_instant	String	N	“”	As of instant time
save_mode	String	N	“overwrite”	Save mode
columns	String	N	“”	Columns of source table which should copy to new table

Output

Output Name	Type
status	Boolean

Example

call copy_to_table(table => 'test_hudi_table', new_table => 'copy_table_test_hudi_table');

status
0

Metadata Table management

create_metadata_table

Create metadata table of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
result	String

Example

call create_metadata_table(table => 'test_hudi_table');

result
Created Metadata Table in hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/.hoodie/metadata (duration=2.777secs)

init_metadata_table

Init metadata table of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
read_only	Boolean	N	false	Read only

Output

Output Name	Type
result	String

Example

call init_metadata_table(table => 'test_hudi_table');

result
Initialized Metadata Table in hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/.hoodie/metadata (duration=0.023sec)

delete_metadata_table

Delete metadata table of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
result	String

Example

call delete_metadata_table(table => 'test_hudi_table');

result
Removed Metadata Table from hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/.hoodie/metadata

show_metadata_table_partitions

Show partition of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
partition	String

Example

call show_metadata_table_partitions(table => 'test_hudi_table');

partition
dt=2021-05-01
dt=2021-05-02
dt=2021-05-03

show_metadata_table_files

Show files of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
partition	String	N	“”	Partition name
limit	Int	N	100	Limit number

Output

Output Name	Type
file_path	String

Example

Show files of a hudi table under one partition.

call show_metadata_table_files(table => 'test_hudi_table', partition => 'dt=20230220');

file_path
.d3cdf6ff-250a-4cee-9af4-ab179fdb9bfb-0_20230220190948086.log.1_0-111-123
d3cdf6ff-250a-4cee-9af4-ab179fdb9bfb-0_0-78-81_20230220190948086.parquet

show_metadata_table_stats

Show metadata table stats of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
stat_key	String
stat_value	String

Example

call show_metadata_table_stats(table => 'test_hudi_table');

stat_key	stat_value
dt=2021-05-03.totalBaseFileSizeInBytes	23142

validate_metadata_table_files

Validate metadata table files of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
verbose	Boolean	N	False	If verbose print all files

Output

Output Name	Type
partition	String
file_name	String
is_present_in_fs	Boolean
is_present_in_metadata	Boolean
fs_size	Long
metadata_size	Long

Example

call validate_metadata_table_files(table => 'test_hudi_table');

partition	file_name	is_present_in_fs	is_present_in_metadata	fs_size	metadata_size
dt=2021-05-03	ad1e5a3f-532f-4a13-9f60-223676798bf3-0_0-4-4_00000000000002.parquet	true	true	43523	43523

Table information

show_table_properties

Show hudi properties of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
path	String	N	None	Path of table
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
key	String
value	String

Example

call show_table_properties(table => 'test_hudi_table', limit => 10);

key	value
hoodie.table.precombine.field	ts
hoodie.table.partition.fields	dt

show_fs_path_detail

Show detail of a path.

Input

Parameter Name	Type	Required	Default Value	Description
path	String	Y	None	Hudi table name
is_sub	Boolean	N	false	Whether to list files
sort	Boolean	N	true	Sorted by storage_size
limit	Int	N	100	Limit number

Output

Output Name	Type
path_num	Long
file_num	Long
storage_size	Long
storage_size(unit)	String
storage_path	String
space_consumed	Long
quota	Long
space_quota	Long

Example

call show_fs_path_detail(path => 'hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table');

path_num	file_num	storage_size	storage_size(unit)	storage_path	space_consumed	quota	space_quota
22	58	2065612	1.97MB	hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table	-1	6196836	-1

stats_file_sizes

Show file sizes of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
partition_path	String	N	“”	Partition path
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
commit_time	String
min	Long
10th	Double
50th	Double
avg	Double
95th	Double
max	Long
num_files	Int
std_dev	Double

Example

call stats_file_sizes(table => 'test_hudi_table');

commit_time	min	10th	50th	avg	95th	max	num_files	std_dev
20230205134149455	435000	435000.0	435000.0	435000.0	435000.0	435000	1	0.0

stats_wa

Show write stats and amplification of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
commit_time	String
total_upserted	Long
total_written	Long
write_amplification_factor	String

Example

call stats_wa(table => 'test_hudi_table');

commit_time	total_upserted	total_written	write_amplification_factor
Total	0	0	0

show_logfile_records

Show records in logfile of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
log_file_path_pattern	String	Y	10	Pattern of logfile
merge	Boolean	N	false	Merge results
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
records	String

Example

call show_logfile_records(table => 'test_hudi_table', log_file_path_pattern => 'hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/*.log*');

records
{“_hoodie_commit_time”: “20230205133427059”, “_hoodie_commit_seqno”: “20230205133427059_0_10”, “_hoodie_record_key”: “1”, “_hoodie_partition_path”: “”, “_hoodie_file_name”: “3438e233-7b50-4eff-adbb-70b1cd76f518-0”, “id”: 1, “name”: “a1”, “price”: 40.0, “ts”: 1111}

show_logfile_metadata

Show metadatas in logfile of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
log_file_path_pattern	String	Y	10	Pattern of logfile
merge	Boolean	N	false	Merge results
limit	Int	N	10	Max number of records to be returned

Output

Output Name	Type
instant_time	String
record_count	Int
block_type	String
header_metadata	String
footer_metadata	String

Example

call show_logfile_metadata(table => 'hudi_mor_tbl', log_file_path_pattern => 'hdfs://ns1/hive/warehouse/hudi.db/hudi_mor_tbl/*.log*');

instant_time	record_count	block_type	header_metadata	footer_metadata
20230205133427059	1	AVRO_DATA_BLOCK	{“INSTANT_TIME”:”20230205133427059”,”SCHEMA”:”{“type”:”record”,”name”:”hudi_mor_tbl_record”,”namespace”:”hoodie.hudi_mor_tbl”,”fields”:[{“name”:”_hoodie_commit_time”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_commit_seqno”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_record_key”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_partition_path”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”_hoodie_file_name”,”type”:[“null”,”string”],”doc”:””,”default”:null},{“name”:”id”,”type”:”int”},{“name”:”name”,”type”:”string”},{“name”:”price”,”type”:”double”},{“name”:”ts”,”type”:”long”}]}”}

show_invalid_parquet

Show invalid parquet files of a table.

Input

Parameter Name	Type	Required	Default Value	Description
Path	String	Y	None	Hudi table name
limit	Int	N	100	Limit number
needDelete	Boolean	N	false	should delete

Output

Output Name	Type
Path	String

Example

call show_invalid_parquet(path => 'hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table');

Path
hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/7fb52523-c7f6-41aa-84a6-629041477aeb-0_0-92-99_20230205133532199.parquet

show_fsview_all

Show file system views of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
max_instant	String	N	“”	Max instant time
include_max	Boolean	N	false	Include max instant
include_in_flight	Boolean	N	false	Include in flight
exclude_compaction	Boolean	N	false	Exclude compaction
limit	Int	N	10	Max number of records to be returned
path_regex	String	N	“ALL_PARTITIONS”	Pattern of path

Output

Output Name	Type
partition	String
file_id	String
base_instant	String
data_file	String
data_file_size	Long
num_delta_files	Long
total_delta_file_size	Long
delta_files	String

Example

call show_fsview_all(table => 'test_hudi_table');

partition	file_id	base_instant	data_file	data_file_size	num_delta_files	total_delta_file_size	delta_files
dt=2021-05-03	d0073a12-085d-4f49-83e9-402947e7e90a-0	20220109225319449	7fb52523-c7f6-41aa-84a6-629041477aeb-0_0-92-99_20220109225319449.parquet	5319449	1	213193	.7fb52523-c7f6-41aa-84a6-629041477aeb-0_20230205133217210.log.1_0-60-63

show_fsview_latest

Show latest file system view of a table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
max_instant	String	N	“”	Max instant time
include_max	Boolean	N	false	Include max instant
include_in_flight	Boolean	N	false	Include in flight
exclude_compaction	Boolean	N	false	Exclude compaction
path_regex	String	N	“ALL_PARTITIONS”	Pattern of path
partition_path	String	N	“ALL_PARTITIONS”	Partition path
merge	Boolean	N	false	Merge results

Output

Output Name	Type
partition	String
file_id	String
base_instant	String
data_file	String
data_file_size	Long
num_delta_files	Long
total_delta_file_size	Long
delta_size_compaction_scheduled	Long
delta_size_compaction_unscheduled	Long
delta_to_base_radio_compaction_scheduled	Double
delta_to_base_radio_compaction_unscheduled	Double
delta_files_compaction_scheduled	String
delta_files_compaction_unscheduled	String

Example

call show_fsview_latest(table => 'test_hudi_table'， partition => 'dt=2021-05-03');

partition	file_id	base_instant	data_file	data_file_size	num_delta_files	total_delta_file_size	delta_files
dt=2021-05-03	d0073a12-085d-4f49-83e9-402947e7e90a-0	20220109225319449	7fb52523-c7f6-41aa-84a6-629041477aeb-0_0-92-99_20220109225319449.parquet	5319449	1	213193	.7fb52523-c7f6-41aa-84a6-629041477aeb-0_20230205133217210.log.1_0-60-63

Table services

run_clustering

Trigger clustering on a hoodie table. By using partition predicates, clustering table can be run with specified partitions, and you can also specify the order columns to sort data.

note

Newly clustering instant will be generated every call, or some pending clustering instants are executed. When calling this procedure, one of parameters table and path must be specified at least. If both parameters are given, table will take effect.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	N	None	Name of table to be clustered
path	String	N	None	Path of table to be clustered
predicate	String	N	None	Predicate to filter partition
order	String	N	None	Order column split by `,`
show_involved_partition	Boolean	N	false	Show involved partition in the output
op	String	N	None	Operation type, `EXECUTE` or `SCHEDULE`
order_strategy	String	N	None	Records layout optimization, `linear/z-order/hilbert`
options	String	N	None	Customize hudi configs in the format “key1=value1,key2=value2`
instants	String	N	None	Specified instants by `,`
selected_partitions	String	N	None	Partitions to run clustering by `,`
limit	Int	N	None	Max number of plans to be executed

Output

The output as follows:

Parameter Name	Type	Required	Default Value	Description
timestamp	String	N	None	Instant name
input_group_size	Int	N	None	The input group sizes for each plan
state	String	N	None	The instant final state
involved_partitions	String	N		Show involved partitions, default is

Example

Clustering test_hudi_table with table name

call run_clustering(table => 'test_hudi_table');

Clustering test_hudi_table with table path

call run_clustering(path => '/tmp/hoodie/test_hudi_table');

Clustering test_hudi_table with table name, predicate and order column

call run_clustering(table => 'test_hudi_table', predicate => 'ts <= 20220408L', order => 'ts');

Clustering test_hudi_table with table name, show_involved_partition

call run_clustering(table => 'test_hudi_table', show_involved_partition => true);

Clustering test_hudi_table with table name, op

call run_clustering(table => 'test_hudi_table', op => 'schedule');

Clustering test_hudi_table with table name, order_strategy

call run_clustering(table => 'test_hudi_table', order_strategy => 'z-order');

Clustering test_hudi_table with table name, op, options

call run_clustering(table => 'test_hudi_table', op => 'schedule', options => '
hoodie.clustering.plan.strategy.target.file.max.bytes=1024*1024*1024,
hoodie.clustering.plan.strategy.max.bytes.per.group=2*1024*1024*1024');

Clustering test_hudi_table with table name, op, instants

call run_clustering(table => 'test_hudi_table', op => 'execute', instants => 'ts1,ts2');

Clustering test_hudi_table with table name, op, selected_partitions

call run_clustering(table => 'test_hudi_table', op => 'execute', selected_partitions => 'par1,par2');

Clustering test_hudi_table with table name, op, limit

call run_clustering(table => 'test_hudi_table', op => 'execute', limit => 10);

note

Limit parameter is valid only when op is execute.

show_clustering

Show pending clusterings on a hoodie table.

note

When calling this procedure, one of parameters table and path must be specified at least. If both parameters are given, table will take effect.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	N	None	Name of table to be clustered
path	String	N	None	Path of table to be clustered
limit	Int	N	None	Max number of records to be returned

Output

Parameter Name	Type	Required	Default Value	Description
timestamp	String	N	None	Instant time
groups	Int	N	None	Number of file groups to be processed

Example

Show pending clusterings with table name

call show_clustering(table => 'test_hudi_table');

timestamp	groups
20220408153707928	2
20220408153636963	3

Show pending clusterings with table path

call show_clustering(path => '/tmp/hoodie/test_hudi_table');

timestamp	groups
20220408153707928	2
20220408153636963	3

Show pending clusterings with table name and limit

call show_clustering(table => 'test_hudi_table', limit => 1);

timestamp	groups
20220408153707928	2

run_compaction

Schedule or run compaction on a hoodie table.

note

For scheduling compaction, if timestamp is specified, new scheduled compaction will use given timestamp as instant time. Otherwise, compaction will be scheduled by using current system time.

For running compaction, given timestamp must be a pending compaction instant time that already exists, if it’s not, exception will be thrown. Meanwhile, if timestampis specified and there are pending compactions, all pending compactions will be executed without new compaction instant generated.

When calling this procedure, one of parameters table and pathmust be specified at least. If both parameters are given, table will take effect.

Input

Parameter Name	Type	Required	Default Value	Description
op	String	N	None	Operation type, `RUN` or `SCHEDULE`
table	String	N	None	Name of table to be compacted
path	String	N	None	Path of table to be compacted
timestamp	String	N	None	Instant time
options	String	N	None	comma separated list of Hudi configs for compaction in the format “config1=value1,config2=value2”

Output

The output of RUN operation is EMPTY, the output of SCHEDULE as follow:

Parameter Name	Type	Required	Default Value	Description
instant	String	N	None	Instant name

Example

Run compaction with table name

call run_compaction(op => 'run', table => 'test_hudi_table');

Run compaction with table path

call run_compaction(op => 'run', path => '/tmp/hoodie/test_hudi_table');

Run compaction with table path and timestamp

call run_compaction(op => 'run', path => '/tmp/hoodie/test_hudi_table', timestamp => '20220408153658568');

Run compaction with options

call run_compaction(op => 'run', table => 'test_hudi_table', options => hoodie.compaction.strategy=org.apache.hudi.table.action.compact.strategy.LogFileNumBasedCompactionStrategy,hoodie.compaction.logfile.num.threshold=3);

Schedule compaction with table name

call run_compaction(op => 'schedule', table => 'test_hudi_table');

instant
20220408153650834

Schedule compaction with table path

call run_compaction(op => 'schedule', path => '/tmp/hoodie/test_hudi_table');

instant
20220408153650834

Schedule compaction with table path and timestamp

call run_compaction(op => 'schedule', path => '/tmp/hoodie/test_hudi_table', timestamp => '20220408153658568');

instant
20220408153658568

show_compaction

Show all compactions on a hoodie table, in-flight or completed compactions are included, and result will be in reverse order according to trigger time.

note

When calling this procedure, one of parameters tableand path must be specified at least. If both parameters are given, table will take effect.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	N	None	Name of table to show compaction
path	String	N	None	Path of table to show compaction
limit	Int	N	None	Max number of records to be returned

Output

Parameter Name	Type	Required	Default Value	Description
timestamp	String	N	None	Instant time
action	String	N	None	Action name of compaction
size	Int	N	None	Number of file slices to be compacted

Example

Show compactions with table name

call show_compaction(table => 'test_hudi_table');

timestamp	action	size
20220408153707928	compaction	10
20220408153636963	compaction	10

Show compactions with table path

call show_compaction(path => '/tmp/hoodie/test_hudi_table');

timestamp	action	size
20220408153707928	compaction	10
20220408153636963	compaction	10

Show compactions with table name and limit

call show_compaction(table => 'test_hudi_table', limit => 1);

timestamp	action	size
20220408153707928	compaction	10

run_clean

Run cleaner on a hoodie table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Name of table to be cleaned
schedule_in_line	Boolean	N	true	Set “true” if you want to schedule and run a clean. Set false if you have already scheduled a clean and want to run that.
clean_policy	String	N	None	org.apache.hudi.common.model.HoodieCleaningPolicy: Cleaning policy to be used. The cleaner service deletes older file slices files to re-claim space. Long running query plans may often refer to older file slices and will break if those are cleaned, before the query has had a chance to run. So, it is good to make sure that the data is retained for more than the maximum query execution time. By default, the cleaning policy is determined based on one of the following configs explicitly set by the user (at most one of them can be set; otherwise, KEEP_LATEST_COMMITS cleaning policy is used). KEEP_LATEST_FILE_VERSIONS: keeps the last N versions of the file slices written; used when “hoodie.cleaner.fileversions.retained” is explicitly set only. KEEP_LATEST_COMMITS(default): keeps the file slices written by the last N commits; used when “hoodie.cleaner.commits.retained” is explicitly set only. KEEP_LATEST_BY_HOURS: keeps the file slices written in the last N hours based on the commit time; used when “hoodie.cleaner.hours.retained” is explicitly set only.
retain_commits	Int	N	None	When KEEP_LATEST_COMMITS cleaning policy is used, the number of commits to retain, without cleaning. This will be retained for num_of_commits * time_between_commits (scheduled). This also directly translates into how much data retention the table supports for incremental queries.
hours_retained	Int	N	None	When KEEP_LATEST_BY_HOURS cleaning policy is used, the number of hours for which commits need to be retained. This config provides a more flexible option as compared to number of commits retained for cleaning service. Setting this property ensures all the files, but the latest in a file group, corresponding to commits with commit times older than the configured number of hours to be retained are cleaned.
file_versions_retained	Int	N	None	When KEEP_LATEST_FILE_VERSIONS cleaning policy is used, the minimum number of file slices to retain in each file group, during cleaning.
trigger_strategy	String	N	None	org.apache.hudi.table.action.clean.CleaningTriggerStrategy: Controls when cleaning is scheduled. NUM_COMMITS(default): Trigger the cleaning service every N commits, determined by `hoodie.clean.max.commits`
trigger_max_commits	Int	N	None	Number of commits after the last clean operation, before scheduling of a new clean is attempted.
options	String	N	None	comma separated list of Hudi configs for cleaning in the format “config1=value1,config2=value2”

Output

Parameter Name	Type
start_clean_time	String
time_taken_in_millis	Long
total_files_deleted	Int
earliest_commit_to_retain	String
bootstrap_part_metadata	String
version	Int

Example

Run clean with table name

call run_clean(table => 'test_hudi_table');

Run clean with keep latest file versions policy

call run_clean(table => 'test_hudi_table', trigger_max_commits => 2, clean_policy => 'KEEP_LATEST_FILE_VERSIONS', file_versions_retained => 1)

delete_marker

Delete marker files of a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
instant_time	String	Y	None	Instant name

Output

Output Name	Type
delete_marker_result	Boolean

Example

call delete_marker(table => 'test_hudi_table', instant_time => '20230206174349556');

delete_marker_result
true

sync_validate

Validate sync procedure.

Input

Parameter Name	Type	Required	Default Value	Description
src_table	String	Y	None	Source table name
dst_table	String	Y	None	Target table name
mode	String	Y	“complete”	Mode
hive_server_url	String	Y	None	Hive server url
hive_pass	String	Y	None	Hive password
src_db	String	N	“rawdata”	Source database
target_db	String	N	dwh_hoodie”	Target database
partition_cnt	Int	N	5	Partition count
hive_user	String	N	“”	Hive user name

Output

Output Name	Type
result	String

Example

 call sync_validate(hive_server_url=>'jdbc:hive2://localhost:10000/default', src_table => 'test_hudi_table_src', dst_table=> 'test_hudi_table_dst', mode=>'complete', hive_pass=>'', src_db=> 'default', target_db=>'default');

hive_sync

Sync the table’s latest schema to Hive metastore.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
metastore_uri	String	N	“”	Metastore_uri
username	String	N	“”	User name
password	String	N	“”	Password
use_jdbc	String	N	“”	Use JDBC when hive synchronization is enabled
mode	String	N	“”	Mode to choose for Hive ops. Valid values are hms, jdbc and hiveql.
partition_fields	String	N	“”	Field in the table to use for determining hive partition columns.
partition_extractor_class	String	N	“”	Class which implements PartitionValueExtractor to extract the partition values, default ‘org.apache.hudi.hive.MultiPartKeysValueExtractor’.
strategy	String	N	“”	Hive table synchronization strategy. Available option: RO, RT, ALL.
sync_incremental	String	N	“”	Whether to incrementally sync the partitions to the metastore, i.e., only added, changed, and deleted partitions based on the commit metadata. If set to `false`, the meta sync executes a full partition sync operation when partitions are lost.

Output

Output Name	Type
result	String

Example

call hive_sync(table => 'test_hudi_table');

result
true

hdfs_parquet_import

add parquet files to a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
table_type	String	Y	“”	Table type, MERGE_ON_READ or COPY_ON_WRITE
src_path	String	Y	“”	Source path
target_path	String	Y	“”	target path
row_key	String	Y	“”	Primary key
partition_key	String	Y	“”	Partition key
schema_file_path	String	Y	“”	Path of Schema file
format	String	N	“parquet”	File format
command	String	N	“insert”	Import command
retry	Int	N	0	Retry times
parallelism	Int	N	None	Parallelism
props_file_path	String	N	“”	Path of properties file

Output

Output Name	Type
import_result	Int

Example

call hdfs_parquet_import(table => 'test_hudi_table', table_type => 'COPY_ON_WRITE', src_path => '', target_path => '', row_key => 'id', partition_key => 'dt', schema_file_path => '');

import_result
0

repair_add_partition_meta

Repair add partition for a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
dry_run	Boolean	N	true	Dry run

Output

Output Name	Type
partition_path	String
metadata_is_present	String
action	String

Example

call repair_add_partition_meta(table => 'test_hudi_table');

partition_path	metadata_is_present	action
dt=2021-05-03	Yes	None

repair_corrupted_clean_files

Repair corrupted clean files for a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name

Output

Output Name	Type
result	Boolean

Example

call repair_corrupted_clean_files(table => 'test_hudi_table');

result
true

repair_deduplicate

Repair deduplicate records for a hudi table. The job dedupliates the data in the duplicated_partition_path and writes it into repaired_output_path. In the end of the job, the data in repaired_output_path is copied into the original path (duplicated_partition_path).

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
duplicated_partition_path	String	Y	None	Duplicated partition path
repaired_output_path	String	Y	None	Repaired output path
dry_run	Boolean	N	true	Dry run
dedupe_type	String	N	“insert_type”	Dedupe type

Output

Output Name	Type
result	String

Example

call repair_deduplicate(table => 'test_hudi_table', duplicated_partition_path => 'dt=2021-05-03', repaired_output_path => '/tmp/repair_path/');

result
Reduplicated files placed in: /tmp/repair_path/.

repair_migrate_partition_meta

downgrade a hudi table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
dry_run	Boolean	N	true	Dry run

Output

Output Name	Type
partition_path	String
text_metafile_present	String
base_metafile_present	String
action	String

Example

call repair_migrate_partition_meta(table => 'test_hudi_table');

repair_overwrite_hoodie_props

overwrite a hudi table properties.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
new_props_file_path	String	Y	None	Path of new properties

Output

Output Name	Type
property	String
old_value	String
new_value	String

Example

call repair_overwrite_hoodie_props(table => 'test_hudi_table', new_props_file_path = > '/tmp/props');

property	old_value	new_value
hoodie.file.index.enable	true	false

Bootstrap

run_bootstrap

Convert an existing table to Hudi.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Name of table to be clustered
table_type	String	Y	None	Table type, MERGE_ON_READ or COPY_ON_WRITE
bootstrap_path	String	Y	None	Base path of the dataset that needs to be bootstrapped as a Hudi table
base_path	String	Y	None	Base path
rowKey_field	String	Y	None	Primary key field
base_file_format	String	N	“PARQUET”	Format of base file
partition_path_field	String	N	“”	Partitioned column field
bootstrap_index_class	String	N	“org.apache.hudi.common.bootstrap.index.HFileBootstrapIndex”	Implementation to use, for mapping a skeleton base file to a bootstrap base file.
selector_class	String	N	“org.apache.hudi.client.bootstrap.selector.MetadataOnlyBootstrapModeSelector”	Selects the mode in which each file/partition in the bootstrapped dataset gets bootstrapped
key_generator_class	String	N	“org.apache.hudi.keygen.SimpleKeyGenerator”	Class of key generator
full_bootstrap_input_provider	String	N	“org.apache.hudi.bootstrap.SparkParquetBootstrapDataProvider”	Class of full bootstrap input provider
schema_provider_class	String	N	“”	Class of schema provider
payload_class	String	N	“org.apache.hudi.common.model.OverwriteWithLatestAvroPayload”	Class of payload
parallelism	Int	N	1500	For metadata-only bootstrap, Hudi parallelizes the operation so that each table partition is handled by one Spark task. This config limits the number of parallelism. We pick the configured parallelism if the number of table partitions is larger than this configured value. The parallelism is assigned to the number of table partitions if it is smaller than the configured value. For full-record bootstrap, i.e., BULK_INSERT operation of the records, this configured value is passed as the BULK_INSERT shuffle parallelism (`hoodie.bulkinsert.shuffle.parallelism`), determining the BULK_INSERT write behavior. If you see that the bootstrap is slow due to the limited parallelism, you can increase this.
enable_hive_sync	Boolean	N	false	Whether to enable hive sync
props_file_path	String	N	“”	Path of properties file
bootstrap_overwrite	Boolean	N	false	Overwrite bootstrap path

Output

Output Name	Type
status	Boolean

Example

call run_bootstrap(table => 'test_hudi_table', table_type => 'COPY_ON_WRITE', bootstrap_path => 'hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table', base_path => 'hdfs://ns1//tmp/hoodie/test_hudi_table', rowKey_field => 'id', partition_path_field => 'dt',bootstrap_overwrite => true);

status
0

show_bootstrap_mapping

Show mapping files of a bootstrap table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Name of table to be clustered
partition_path	String	N	“”	Partition path
file_ids	String	N	“”	File ids
limit	Int	N	10	Max number of records to be returned
sort_by	String	N	“partition”	Sort by columns
desc	Boolean	N	false	Descending order

Output

Parameter Name	Type
partition	String
file_id	Int
source_base_path	String
source_partition	Int
source_file	String

Example

call show_bootstrap_mapping(table => 'test_hudi_table');

partition	file_id	source_base_path	source_partition	source_file
dt=2021-05-03	d0073a12-085d-4f49-83e9-402947e7e90a-0	hdfs://ns1/hive/warehouse/hudi.db/test_hudi_table/dt=2021-05-03/d0073a12-085d-4f49-83e9-402947e7e90a-0_0-2-2_00000000000002.parquet	dt=2021-05-03	hdfs://ns1/tmp/dt=2021-05-03/00001.parquet

show_bootstrap_partitions

Show partitions of a bootstrap table.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Name of table to be clustered

Output

Parameter Name	Type
indexed_partitions	String

Example

call show_bootstrap_partitions(table => 'test_hudi_table');

indexed_partitions
dt=2021-05-03

Version management

upgrade_table

upgrade a hudi table to a specific version.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
to_version	String	Y	None	Version of hoodie table

Output

Output Name	Type
result	Boolean

Example

call upgrade_table(table => 'test_hudi_table', to_version => 'FIVE');

result
true

downgrade_table

downgrade a hudi table to a specific version.

Input

Parameter Name	Type	Required	Default Value	Description
table	String	Y	None	Hudi table name
to_version	String	Y	None	Version of hoodie table

Output

Output Name	Type
result	Boolean

Example

call downgrade_table(table => 'test_hudi_table', to_version => 'FOUR');

result
true