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Posted to gitbox@hive.apache.org by "difin (via GitHub)" <gi...@apache.org> on 2024/01/23 19:56:11 UTC

[PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

difin opened a new pull request, #5028:
URL: https://github.com/apache/hive/pull/5028

   …yntax
   
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   Support for Hive Iceberg major compaction using OPTIMIZE TABLE tableName REWRITE DATA syntax.
   
   ### Why are the changes needed?
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     1. If you propose a new API, clarify the use case for a new API.
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   Compaction using OPTIMIZE TABLE syntax is implemented in Impala for Iceberg Compaction. Implementing the same syntax in 
   
   ### Does this PR introduce _any_ user-facing change?
   <!--
   Note that it means *any* user-facing change including all aspects such as the documentation fix.
   If yes, please clarify the previous behavior and the change this PR proposes - provide the console output, description, screenshot and/or a reproducable example to show the behavior difference if possible.
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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "zhangbutao (via GitHub)" <gi...@apache.org>.
zhangbutao commented on PR #5028:
URL: https://github.com/apache/hive/pull/5028#issuecomment-1908303074

   Hi, @difin you need to rebase yout PR to get the green Sonar check.


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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "deniskuzZ (via GitHub)" <gi...@apache.org>.
deniskuzZ commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1484100680


##########
iceberg/iceberg-handler/src/test/queries/positive/iceberg_optimize_table_unpartitioned.q:
##########
@@ -0,0 +1,58 @@
+-- SORT_QUERY_RESULTS
+-- Mask neededVirtualColumns due to non-strict order
+--! qt:replace:/(\s+neededVirtualColumns:\s)(.*)/$1#Masked#/
+-- Mask the totalSize value as it can have slight variability, causing test flakiness
+--! qt:replace:/(\s+totalSize\s+)\S+(\s+)/$1#Masked#$2/
+-- Mask random uuid
+--! qt:replace:/(\s+uuid\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask a random snapshot id
+--! qt:replace:/(\s+current-snapshot-id\s+)\S+(\s*)/$1#Masked#/
+-- Mask added file size
+--! qt:replace:/(\S\"added-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask total file size
+--! qt:replace:/(\S\"total-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask current-snapshot-timestamp-ms
+--! qt:replace:/(\s+current-snapshot-timestamp-ms\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask the enqueue time which is based on current time
+--! qt:replace:/(MAJOR\s+succeeded\s+)[a-zA-Z0-9\-\.\s+]+(\s+manual)/$1#Masked#$2/
+-- Mask compaction id as they will be allocated in parallel threads
+--! qt:replace:/^[0-9]/#Masked#/
+
+set hive.llap.io.enabled=true;
+set hive.vectorized.execution.enabled=true;
+set hive.optimize.shared.work.merge.ts.schema=true;
+
+create table ice_orc (
+    first_name string, 
+    last_name string
+ )
+stored by iceberg stored as orc 
+tblproperties ('format-version'='2');
+
+insert into ice_orc VALUES ('fn1','ln1');
+insert into ice_orc VALUES ('fn2','ln2');
+insert into ice_orc VALUES ('fn3','ln3');
+insert into ice_orc VALUES ('fn4','ln4');
+insert into ice_orc VALUES ('fn5','ln5');
+insert into ice_orc VALUES ('fn6','ln6');
+insert into ice_orc VALUES ('fn7','ln7');
+
+update ice_orc set last_name = 'ln1a' where first_name='fn1';
+update ice_orc set last_name = 'ln2a' where first_name='fn2';
+update ice_orc set last_name = 'ln3a' where first_name='fn3';
+update ice_orc set last_name = 'ln4a' where first_name='fn4';
+update ice_orc set last_name = 'ln5a' where first_name='fn5';
+update ice_orc set last_name = 'ln6a' where first_name='fn6';
+update ice_orc set last_name = 'ln7a' where first_name='fn7';
+
+delete from ice_orc where last_name in ('ln5a', 'ln6a', 'ln7a');
+
+select * from ice_orc;
+describe formatted ice_orc;
+
+explain optimize table ice_orc rewrite data;
+optimize table ice_orc rewrite data;
+

Review Comment:
   should we check snapshots and files before and after compaction?



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "zhangbutao (via GitHub)" <gi...@apache.org>.
zhangbutao commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1470579963


##########
parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g:
##########
@@ -99,6 +100,19 @@ alterTblPartitionStatementSuffix[boolean partition]
   | alterStatementSuffixAddCol
   | alterStatementSuffixUpdateColumns
   ;
+    
+optimizeTableStatementSuffix

Review Comment:
   We already have `alter table execute` syntax for partial iceberg maintance operations:
   https://github.com/apache/hive/blob/94f318959ca6ec5f815e6326241bd2269ce91b80/parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g#L473
   
   How do we distinguish between the two syntax? 
   Is the `optimize` only used for iceberg compaction?
   
   I'm not opposed to adding new syntax, but i think we need to clarify the specific use cases to avoid users confusion.
   
   cc @ayushtkn @deniskuzZ any thoughts?



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "deniskuzZ (via GitHub)" <gi...@apache.org>.
deniskuzZ commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1484038116


##########
parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g:
##########
@@ -99,6 +100,19 @@ alterTblPartitionStatementSuffix[boolean partition]
   | alterStatementSuffixAddCol
   | alterStatementSuffixUpdateColumns
   ;
+    
+optimizeTableStatementSuffix

Review Comment:
   looks good to me, OPTIMIZE is more iceberg-centric cmd, with extra functionality like:
   ```` 
   OPTIMIZE TABLE demo.example_table REWRITE MANIFESTS
   ````



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "deniskuzZ (via GitHub)" <gi...@apache.org>.
deniskuzZ commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1484038116


##########
parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g:
##########
@@ -99,6 +100,19 @@ alterTblPartitionStatementSuffix[boolean partition]
   | alterStatementSuffixAddCol
   | alterStatementSuffixUpdateColumns
   ;
+    
+optimizeTableStatementSuffix

Review Comment:
   looks good to me



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "difin (via GitHub)" <gi...@apache.org>.
difin commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1471757645


##########
parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g:
##########
@@ -99,6 +100,19 @@ alterTblPartitionStatementSuffix[boolean partition]
   | alterStatementSuffixAddCol
   | alterStatementSuffixUpdateColumns
   ;
+    
+optimizeTableStatementSuffix

Review Comment:
   Optimize syntax as proposed in this PR is a syntactic sugar for existing compaction syntax in Hive and it works for both Iceberg and ACID tables, but it is meant for Iceberg tables and the reason is that many Hive competitors use Optimize syntax for Iceberg compaction and it may help with Hive Iceberg adoption.
   We are planning to extend the support for Optimize syntax in the future to support parameters like minimum number of files in the partition and file size threshold parameters which will be only for Iceberg:
   
   ```
   OPTIMIZE TABLE <table_name>
   REWRITE DATA [USING BIN_PACK]
   [ ( { FILE_SIZE_THRESHOLD | MIN_INPUT_FILES } = <value> [, ... ] ) ]
   WHERE category = 'c1'
   ```



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "zhangbutao (via GitHub)" <gi...@apache.org>.
zhangbutao commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1473721193


##########
parser/src/java/org/apache/hadoop/hive/ql/parse/AlterClauseParser.g:
##########
@@ -99,6 +100,19 @@ alterTblPartitionStatementSuffix[boolean partition]
   | alterStatementSuffixAddCol
   | alterStatementSuffixUpdateColumns
   ;
+    
+optimizeTableStatementSuffix

Review Comment:
   Let @deniskuzZ to have a quick look if this syntax is ok as you have reviewed most iceberg compaction code. :)



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "sonarcloud[bot] (via GitHub)" <gi...@apache.org>.
sonarcloud[bot] commented on PR #5028:
URL: https://github.com/apache/hive/pull/5028#issuecomment-1912299766

   ## [![Quality Gate Passed](https://sonarsource.github.io/sonarcloud-github-static-resources/v2/checks/QualityGateBadge/qg-passed-20px.png 'Quality Gate Passed')](https://sonarcloud.io/dashboard?id=apache_hive&pullRequest=5028) **Quality Gate passed**  
   Kudos, no new issues were introduced!
   
   [0 New issues](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=5028&resolved=false&inNewCodePeriod=true)  
   [0 Security Hotspots](https://sonarcloud.io/project/security_hotspots?id=apache_hive&pullRequest=5028&resolved=false&inNewCodePeriod=true)  
   No data about Coverage  
   No data about Duplication  
     
   [See analysis details on SonarCloud](https://sonarcloud.io/dashboard?id=apache_hive&pullRequest=5028)
   
   


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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "deniskuzZ (via GitHub)" <gi...@apache.org>.
deniskuzZ commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1486456546


##########
iceberg/iceberg-handler/src/test/queries/positive/iceberg_optimize_table_unpartitioned.q:
##########
@@ -0,0 +1,58 @@
+-- SORT_QUERY_RESULTS
+-- Mask neededVirtualColumns due to non-strict order
+--! qt:replace:/(\s+neededVirtualColumns:\s)(.*)/$1#Masked#/
+-- Mask the totalSize value as it can have slight variability, causing test flakiness
+--! qt:replace:/(\s+totalSize\s+)\S+(\s+)/$1#Masked#$2/
+-- Mask random uuid
+--! qt:replace:/(\s+uuid\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask a random snapshot id
+--! qt:replace:/(\s+current-snapshot-id\s+)\S+(\s*)/$1#Masked#/
+-- Mask added file size
+--! qt:replace:/(\S\"added-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask total file size
+--! qt:replace:/(\S\"total-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask current-snapshot-timestamp-ms
+--! qt:replace:/(\s+current-snapshot-timestamp-ms\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask the enqueue time which is based on current time
+--! qt:replace:/(MAJOR\s+succeeded\s+)[a-zA-Z0-9\-\.\s+]+(\s+manual)/$1#Masked#$2/
+-- Mask compaction id as they will be allocated in parallel threads
+--! qt:replace:/^[0-9]/#Masked#/
+
+set hive.llap.io.enabled=true;
+set hive.vectorized.execution.enabled=true;
+set hive.optimize.shared.work.merge.ts.schema=true;
+
+create table ice_orc (
+    first_name string, 
+    last_name string
+ )
+stored by iceberg stored as orc 
+tblproperties ('format-version'='2');
+
+insert into ice_orc VALUES ('fn1','ln1');
+insert into ice_orc VALUES ('fn2','ln2');
+insert into ice_orc VALUES ('fn3','ln3');
+insert into ice_orc VALUES ('fn4','ln4');
+insert into ice_orc VALUES ('fn5','ln5');
+insert into ice_orc VALUES ('fn6','ln6');
+insert into ice_orc VALUES ('fn7','ln7');
+
+update ice_orc set last_name = 'ln1a' where first_name='fn1';
+update ice_orc set last_name = 'ln2a' where first_name='fn2';
+update ice_orc set last_name = 'ln3a' where first_name='fn3';
+update ice_orc set last_name = 'ln4a' where first_name='fn4';
+update ice_orc set last_name = 'ln5a' where first_name='fn5';
+update ice_orc set last_name = 'ln6a' where first_name='fn6';
+update ice_orc set last_name = 'ln7a' where first_name='fn7';
+
+delete from ice_orc where last_name in ('ln5a', 'ln6a', 'ln7a');
+
+select * from ice_orc;
+describe formatted ice_orc;
+
+explain optimize table ice_orc rewrite data;
+optimize table ice_orc rewrite data;
+

Review Comment:
   👍 



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "difin (via GitHub)" <gi...@apache.org>.
difin commented on code in PR #5028:
URL: https://github.com/apache/hive/pull/5028#discussion_r1484417442


##########
iceberg/iceberg-handler/src/test/queries/positive/iceberg_optimize_table_unpartitioned.q:
##########
@@ -0,0 +1,58 @@
+-- SORT_QUERY_RESULTS
+-- Mask neededVirtualColumns due to non-strict order
+--! qt:replace:/(\s+neededVirtualColumns:\s)(.*)/$1#Masked#/
+-- Mask the totalSize value as it can have slight variability, causing test flakiness
+--! qt:replace:/(\s+totalSize\s+)\S+(\s+)/$1#Masked#$2/
+-- Mask random uuid
+--! qt:replace:/(\s+uuid\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask a random snapshot id
+--! qt:replace:/(\s+current-snapshot-id\s+)\S+(\s*)/$1#Masked#/
+-- Mask added file size
+--! qt:replace:/(\S\"added-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask total file size
+--! qt:replace:/(\S\"total-files-size\\\":\\\")(\d+)(\\\")/$1#Masked#$3/
+-- Mask current-snapshot-timestamp-ms
+--! qt:replace:/(\s+current-snapshot-timestamp-ms\s+)\S+(\s*)/$1#Masked#$2/
+-- Mask the enqueue time which is based on current time
+--! qt:replace:/(MAJOR\s+succeeded\s+)[a-zA-Z0-9\-\.\s+]+(\s+manual)/$1#Masked#$2/
+-- Mask compaction id as they will be allocated in parallel threads
+--! qt:replace:/^[0-9]/#Masked#/
+
+set hive.llap.io.enabled=true;
+set hive.vectorized.execution.enabled=true;
+set hive.optimize.shared.work.merge.ts.schema=true;
+
+create table ice_orc (
+    first_name string, 
+    last_name string
+ )
+stored by iceberg stored as orc 
+tblproperties ('format-version'='2');
+
+insert into ice_orc VALUES ('fn1','ln1');
+insert into ice_orc VALUES ('fn2','ln2');
+insert into ice_orc VALUES ('fn3','ln3');
+insert into ice_orc VALUES ('fn4','ln4');
+insert into ice_orc VALUES ('fn5','ln5');
+insert into ice_orc VALUES ('fn6','ln6');
+insert into ice_orc VALUES ('fn7','ln7');
+
+update ice_orc set last_name = 'ln1a' where first_name='fn1';
+update ice_orc set last_name = 'ln2a' where first_name='fn2';
+update ice_orc set last_name = 'ln3a' where first_name='fn3';
+update ice_orc set last_name = 'ln4a' where first_name='fn4';
+update ice_orc set last_name = 'ln5a' where first_name='fn5';
+update ice_orc set last_name = 'ln6a' where first_name='fn6';
+update ice_orc set last_name = 'ln7a' where first_name='fn7';
+
+delete from ice_orc where last_name in ('ln5a', 'ln6a', 'ln7a');
+
+select * from ice_orc;
+describe formatted ice_orc;
+
+explain optimize table ice_orc rewrite data;
+optimize table ice_orc rewrite data;
+

Review Comment:
   It is checked using DESCRIBE FORMATTED command.
   The iceberg compaction q-files contains that command before and after compaction and .q.out files compare number of data and delete files:
   
   `current-snapshot-summary	{\"replace-partitions\":\"true\",\"added-data-files\":\"1\",\"added-records\":\"4\",\"added-files-size\":\"#Masked#\",\"changed-partition-count\":\"1\",\"total-records\":\"4\",\"total-files-size\":\"#Masked#\",\"total-data-files\":\"1\",\"total-delete-files\":\"0\",\"total-position-deletes\":\"0\",\"total-equality-deletes\":\"0\"}`
   



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Re: [PR] HIVE-27980: Hive Iceberg Compaction: add support for OPTIMIZE TABLE s… [hive]

Posted by "deniskuzZ (via GitHub)" <gi...@apache.org>.
deniskuzZ merged PR #5028:
URL: https://github.com/apache/hive/pull/5028


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