Hive TEZ is taking very long time to run the query
I'm kinda of new to Hive and Hadoop . I have a query which is taking 10 minutes to complete the query .
Size of the data is 10GB
Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE
Partition and Bucketing is done in the table .
How can I improve the below query .
select * fromtbl1 where clmn='Abdul' and loc='IND' and TO_UNIX_TIMESTAMP(ts) > (UNIX_TIMESTAMP() - 5*60*60);
set hive.vectorized.execution.reduce.enabled=true;
set hive.tez.container.size=8192;
set hive.fetch.task.conversion = none;
set mapred.compress.map.output=true;
set mapred.output.compress=true;
set hive.fetch.task.conversion=none;
-----------+--+
| Explain |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
| Plan not optimized by CBO. |
| |
| Stage-0 |
| Fetch Operator |
| limit:-1 |
| Stage-1 |
| Map 1 |
| File Output Operator [FS_2973] |
| compressed:false |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| table:{"input format:":"org.apache.hadoop.mapred.TextInputFormat","output format:":"org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat","serde:":"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe"} |
| Select Operator [SEL_2972] |
| outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7"] |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| Filter Operator [FIL_2971] |
| predicate:((section = 'xysaa') and (to_unix_timestamp(ts) > (unix_timestamp() - 18000))) (type: boolean) |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| TableScan [TS_2970] |
| ACID table:true |
| alias:pp |
| Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE |
| |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
None of the parameters helped us to resolve the query in shorter period of time .
hive mapreduce apache-tez
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
add a comment |
I'm kinda of new to Hive and Hadoop . I have a query which is taking 10 minutes to complete the query .
Size of the data is 10GB
Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE
Partition and Bucketing is done in the table .
How can I improve the below query .
select * fromtbl1 where clmn='Abdul' and loc='IND' and TO_UNIX_TIMESTAMP(ts) > (UNIX_TIMESTAMP() - 5*60*60);
set hive.vectorized.execution.reduce.enabled=true;
set hive.tez.container.size=8192;
set hive.fetch.task.conversion = none;
set mapred.compress.map.output=true;
set mapred.output.compress=true;
set hive.fetch.task.conversion=none;
-----------+--+
| Explain |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
| Plan not optimized by CBO. |
| |
| Stage-0 |
| Fetch Operator |
| limit:-1 |
| Stage-1 |
| Map 1 |
| File Output Operator [FS_2973] |
| compressed:false |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| table:{"input format:":"org.apache.hadoop.mapred.TextInputFormat","output format:":"org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat","serde:":"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe"} |
| Select Operator [SEL_2972] |
| outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7"] |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| Filter Operator [FIL_2971] |
| predicate:((section = 'xysaa') and (to_unix_timestamp(ts) > (unix_timestamp() - 18000))) (type: boolean) |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| TableScan [TS_2970] |
| ACID table:true |
| alias:pp |
| Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE |
| |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
None of the parameters helped us to resolve the query in shorter period of time .
hive mapreduce apache-tez
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
add a comment |
I'm kinda of new to Hive and Hadoop . I have a query which is taking 10 minutes to complete the query .
Size of the data is 10GB
Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE
Partition and Bucketing is done in the table .
How can I improve the below query .
select * fromtbl1 where clmn='Abdul' and loc='IND' and TO_UNIX_TIMESTAMP(ts) > (UNIX_TIMESTAMP() - 5*60*60);
set hive.vectorized.execution.reduce.enabled=true;
set hive.tez.container.size=8192;
set hive.fetch.task.conversion = none;
set mapred.compress.map.output=true;
set mapred.output.compress=true;
set hive.fetch.task.conversion=none;
-----------+--+
| Explain |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
| Plan not optimized by CBO. |
| |
| Stage-0 |
| Fetch Operator |
| limit:-1 |
| Stage-1 |
| Map 1 |
| File Output Operator [FS_2973] |
| compressed:false |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| table:{"input format:":"org.apache.hadoop.mapred.TextInputFormat","output format:":"org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat","serde:":"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe"} |
| Select Operator [SEL_2972] |
| outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7"] |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| Filter Operator [FIL_2971] |
| predicate:((section = 'xysaa') and (to_unix_timestamp(ts) > (unix_timestamp() - 18000))) (type: boolean) |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| TableScan [TS_2970] |
| ACID table:true |
| alias:pp |
| Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE |
| |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
None of the parameters helped us to resolve the query in shorter period of time .
hive mapreduce apache-tez
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
I'm kinda of new to Hive and Hadoop . I have a query which is taking 10 minutes to complete the query .
Size of the data is 10GB
Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE
Partition and Bucketing is done in the table .
How can I improve the below query .
select * fromtbl1 where clmn='Abdul' and loc='IND' and TO_UNIX_TIMESTAMP(ts) > (UNIX_TIMESTAMP() - 5*60*60);
set hive.vectorized.execution.reduce.enabled=true;
set hive.tez.container.size=8192;
set hive.fetch.task.conversion = none;
set mapred.compress.map.output=true;
set mapred.output.compress=true;
set hive.fetch.task.conversion=none;
-----------+--+
| Explain |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
| Plan not optimized by CBO. |
| |
| Stage-0 |
| Fetch Operator |
| limit:-1 |
| Stage-1 |
| Map 1 |
| File Output Operator [FS_2973] |
| compressed:false |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| table:{"input format:":"org.apache.hadoop.mapred.TextInputFormat","output format:":"org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat","serde:":"org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe"} |
| Select Operator [SEL_2972] |
| outputColumnNames:["_col0","_col1","_col2","_col3","_col4","_col5","_col6","_col7"] |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| Filter Operator [FIL_2971] |
| predicate:((section = 'xysaa') and (to_unix_timestamp(ts) > (unix_timestamp() - 18000))) (type: boolean) |
| Statistics:Num rows: 49528 Data size: 24516360 Basic stats: COMPLETE Column stats: COMPLETE |
| TableScan [TS_2970] |
| ACID table:true |
| alias:pp |
| Statistics:Num rows: 4457541 Data size: 1854337449 Basic stats: COMPLETE Column stats: COMPLETE |
| |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--+
None of the parameters helped us to resolve the query in shorter period of time .
hive mapreduce apache-tez
hive mapreduce apache-tez
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
asked Nov 18 '18 at 19:51
VarshiniVarshini
234
234
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
According to the plan, query runs on mapper, vectorizing is not enabled. Try this:
set hive.vectorized.execution.enabled = true;
set hive.vectorized.execution.reduce.enabled=true;
Tune mapper parallelism:
set tez.grouping.max-size=67108864;
set tez.grouping.min-size=32000000;
Play with these settings to increase the number of mappers running. Ideally it should run without this setting:
set hive.tez.container.size=8192;
One more recommendation is to replace unix_timestamp() with UNIX_TIMESTAMP(current_timestamp). This function is not deterministic and its value is not fixed for the scope of a query execution, therefore prevents proper optimization of queries - this has been deprecated since 2.0 in favor of CURRENT_TIMESTAMP constant.
(UNIX_TIMESTAMP(current_timestamp) - 5*60*60)
Also your files are very small. the size of partition is 200-500, 12 files per partition, 20-50Mb is the file size. Fortunately it is ORC and you can concatenate files using ALTER TABLE CONCATENATE COMMAND.
12 files is not a big deal and you probably will not notice an improvement when querying single partition.
See also this answer: https://stackoverflow.com/a/48487306/2700344
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
|
show 8 more comments
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
According to the plan, query runs on mapper, vectorizing is not enabled. Try this:
set hive.vectorized.execution.enabled = true;
set hive.vectorized.execution.reduce.enabled=true;
Tune mapper parallelism:
set tez.grouping.max-size=67108864;
set tez.grouping.min-size=32000000;
Play with these settings to increase the number of mappers running. Ideally it should run without this setting:
set hive.tez.container.size=8192;
One more recommendation is to replace unix_timestamp() with UNIX_TIMESTAMP(current_timestamp). This function is not deterministic and its value is not fixed for the scope of a query execution, therefore prevents proper optimization of queries - this has been deprecated since 2.0 in favor of CURRENT_TIMESTAMP constant.
(UNIX_TIMESTAMP(current_timestamp) - 5*60*60)
Also your files are very small. the size of partition is 200-500, 12 files per partition, 20-50Mb is the file size. Fortunately it is ORC and you can concatenate files using ALTER TABLE CONCATENATE COMMAND.
12 files is not a big deal and you probably will not notice an improvement when querying single partition.
See also this answer: https://stackoverflow.com/a/48487306/2700344
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
|
show 8 more comments
According to the plan, query runs on mapper, vectorizing is not enabled. Try this:
set hive.vectorized.execution.enabled = true;
set hive.vectorized.execution.reduce.enabled=true;
Tune mapper parallelism:
set tez.grouping.max-size=67108864;
set tez.grouping.min-size=32000000;
Play with these settings to increase the number of mappers running. Ideally it should run without this setting:
set hive.tez.container.size=8192;
One more recommendation is to replace unix_timestamp() with UNIX_TIMESTAMP(current_timestamp). This function is not deterministic and its value is not fixed for the scope of a query execution, therefore prevents proper optimization of queries - this has been deprecated since 2.0 in favor of CURRENT_TIMESTAMP constant.
(UNIX_TIMESTAMP(current_timestamp) - 5*60*60)
Also your files are very small. the size of partition is 200-500, 12 files per partition, 20-50Mb is the file size. Fortunately it is ORC and you can concatenate files using ALTER TABLE CONCATENATE COMMAND.
12 files is not a big deal and you probably will not notice an improvement when querying single partition.
See also this answer: https://stackoverflow.com/a/48487306/2700344
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
|
show 8 more comments
According to the plan, query runs on mapper, vectorizing is not enabled. Try this:
set hive.vectorized.execution.enabled = true;
set hive.vectorized.execution.reduce.enabled=true;
Tune mapper parallelism:
set tez.grouping.max-size=67108864;
set tez.grouping.min-size=32000000;
Play with these settings to increase the number of mappers running. Ideally it should run without this setting:
set hive.tez.container.size=8192;
One more recommendation is to replace unix_timestamp() with UNIX_TIMESTAMP(current_timestamp). This function is not deterministic and its value is not fixed for the scope of a query execution, therefore prevents proper optimization of queries - this has been deprecated since 2.0 in favor of CURRENT_TIMESTAMP constant.
(UNIX_TIMESTAMP(current_timestamp) - 5*60*60)
Also your files are very small. the size of partition is 200-500, 12 files per partition, 20-50Mb is the file size. Fortunately it is ORC and you can concatenate files using ALTER TABLE CONCATENATE COMMAND.
12 files is not a big deal and you probably will not notice an improvement when querying single partition.
See also this answer: https://stackoverflow.com/a/48487306/2700344
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
According to the plan, query runs on mapper, vectorizing is not enabled. Try this:
set hive.vectorized.execution.enabled = true;
set hive.vectorized.execution.reduce.enabled=true;
Tune mapper parallelism:
set tez.grouping.max-size=67108864;
set tez.grouping.min-size=32000000;
Play with these settings to increase the number of mappers running. Ideally it should run without this setting:
set hive.tez.container.size=8192;
One more recommendation is to replace unix_timestamp() with UNIX_TIMESTAMP(current_timestamp). This function is not deterministic and its value is not fixed for the scope of a query execution, therefore prevents proper optimization of queries - this has been deprecated since 2.0 in favor of CURRENT_TIMESTAMP constant.
(UNIX_TIMESTAMP(current_timestamp) - 5*60*60)
Also your files are very small. the size of partition is 200-500, 12 files per partition, 20-50Mb is the file size. Fortunately it is ORC and you can concatenate files using ALTER TABLE CONCATENATE COMMAND.
12 files is not a big deal and you probably will not notice an improvement when querying single partition.
See also this answer: https://stackoverflow.com/a/48487306/2700344
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
edited Nov 21 '18 at 20:07
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
answered Nov 19 '18 at 19:12
leftjoinleftjoin
8,72922151
8,72922151
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
|
show 8 more comments
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
No Improvement Mate . Still the same . I was wondering why it is taking 10 minutes to complete the query when the data is huge in TB also taking same time to return the results . How can I tune this query faster .
– Varshini
Nov 20 '18 at 16:35
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
@Varshini Please answer these questions: How many files and what is file format and compression in the single partition, what is partitioned column?
– leftjoin
Nov 20 '18 at 17:15
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
Partitioned column is loc and compression is ZLIB with ORC File format. There are 40-50 partitions.
– Varshini
Nov 21 '18 at 18:24
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
@Varshini check also please how many files per partition and their size
– leftjoin
Nov 21 '18 at 18:33
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
There are 12 files in almost all the partitions . Size of every partition would be 200-500 MB and total size of the table is 10GB .
– Varshini
Nov 21 '18 at 19:25
|
show 8 more comments
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