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markhamstra
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As part of the effort to avoid data loss on Spark Streaming driver failure, we want to implement a write ahead log that can write received data to HDFS. This allows the received data to be persist across driver failures. So when the streaming driver is restarted, it can find and reprocess all the data that were received but not processed. This was primarily implemented by @harishreedharan. This is still WIP, as he is going to improve the unitests by using HDFS mini cluster. Author: Hari Shreedharan <hshreedharan@apache.org> Author: Tathagata Das <tathagata.das1565@gmail.com> Closes apache#2882 from tdas/driver-ha-wal and squashes the following commits: e4bee20 [Tathagata Das] Removed synchronized, Path.getFileSystem is threadsafe 55514e2 [Tathagata Das] Minor changes based on PR comments. d29fddd [Tathagata Das] Merge pull request alteryx#20 from harishreedharan/driver-ha-wal a317a4d [Hari Shreedharan] Directory deletion should not fail tests 9514dc8 [Tathagata Das] Added unit tests to test reading of corrupted data and other minor edits 3881706 [Tathagata Das] Merge pull request alteryx#19 from harishreedharan/driver-ha-wal 4705fff [Hari Shreedharan] Sort listed files by name. Use local files for WAL tests. eb356ca [Tathagata Das] Merge pull request alteryx#18 from harishreedharan/driver-ha-wal 82ce56e [Hari Shreedharan] Fix file ordering issue in WALManager tests 5ff90ee [Hari Shreedharan] Fix tests to not ignore ordering and also assert all data is present ef8db09 [Tathagata Das] Merge pull request alteryx#17 from harishreedharan/driver-ha-wal 7e40e56 [Hari Shreedharan] Restore old build directory after tests 587b876 [Hari Shreedharan] Fix broken test. Call getFileSystem only from synchronized method. b4be0c1 [Hari Shreedharan] Remove unused method edcbee1 [Hari Shreedharan] Tests reading and writing data using writers now use Minicluster. 5c70d1f [Hari Shreedharan] Remove underlying stream from the WALWriter. 4ab602a [Tathagata Das] Refactored write ahead stuff from streaming.storage to streaming.util b06be2b [Tathagata Das] Adding missing license. 5182ffb [Hari Shreedharan] Added documentation 172358d [Tathagata Das] Pulled WriteAheadLog-related stuff from tdas/spark/tree/driver-ha-working
markhamstra
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Jan 12, 2015
Support ! boolean logic operator like NOT in sql as follows select * from for_test where !(col1 > col2) Author: YanTangZhai <hakeemzhai@tencent.com> Author: Michael Armbrust <michael@databricks.com> Closes apache#3555 from YanTangZhai/SPARK-4692 and squashes the following commits: 1a9f605 [YanTangZhai] Update HiveQuerySuite.scala 7c03c68 [YanTangZhai] Merge pull request alteryx#23 from apache/master 992046e [YanTangZhai] Update HiveQuerySuite.scala ea618f4 [YanTangZhai] Update HiveQuerySuite.scala 192411d [YanTangZhai] Merge pull request alteryx#17 from YanTangZhai/master e4c2c0a [YanTangZhai] Merge pull request alteryx#15 from apache/master 1e1ebb4 [YanTangZhai] Update HiveQuerySuite.scala efc4210 [YanTangZhai] Update HiveQuerySuite.scala bd2c444 [YanTangZhai] Update HiveQuerySuite.scala 1893956 [YanTangZhai] Merge pull request alteryx#14 from marmbrus/pr/3555 59e4de9 [Michael Armbrust] make hive test 718afeb [YanTangZhai] Merge pull request alteryx#12 from apache/master 950b21e [YanTangZhai] Update HiveQuerySuite.scala 74175b4 [YanTangZhai] Update HiveQuerySuite.scala 92242c7 [YanTangZhai] Update HiveQl.scala 6e643f8 [YanTangZhai] Merge pull request alteryx#11 from apache/master e249846 [YanTangZhai] Merge pull request alteryx#10 from apache/master d26d982 [YanTangZhai] Merge pull request alteryx#9 from apache/master 76d4027 [YanTangZhai] Merge pull request alteryx#8 from apache/master 03b62b0 [YanTangZhai] Merge pull request alteryx#7 from apache/master 8a00106 [YanTangZhai] Merge pull request alteryx#6 from apache/master cbcba66 [YanTangZhai] Merge pull request #3 from apache/master cdef539 [YanTangZhai] Merge pull request #1 from apache/master
markhamstra
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Jul 19, 2015
…into a single batch. SQL ``` select * from tableA join tableB on (a > 3 and b = d) or (a > 3 and b = e) ``` Plan before modify ``` == Optimized Logical Plan == Project [a#293,b#294,c#295,d#296,e#297] Join Inner, Some(((a#293 > 3) && ((b#294 = d#296) || (b#294 = e#297)))) MetastoreRelation default, tablea, None MetastoreRelation default, tableb, None ``` Plan after modify ``` == Optimized Logical Plan == Project [a#293,b#294,c#295,d#296,e#297] Join Inner, Some(((b#294 = d#296) || (b#294 = e#297))) Filter (a#293 > 3) MetastoreRelation default, tablea, None MetastoreRelation default, tableb, None ``` CombineLimits ==> Limit(If(LessThan(ne, le), ne, le), grandChild) and LessThan is in BooleanSimplification , so CombineLimits must before BooleanSimplification and BooleanSimplification must before PushPredicateThroughJoin. Author: Zhongshuai Pei <799203320@qq.com> Author: DoingDone9 <799203320@qq.com> Closes apache#6351 from DoingDone9/master and squashes the following commits: 20de7be [Zhongshuai Pei] Update Optimizer.scala 7bc7d28 [Zhongshuai Pei] Merge pull request alteryx#17 from apache/master 0ba5f42 [Zhongshuai Pei] Update Optimizer.scala f8b9314 [Zhongshuai Pei] Update FilterPushdownSuite.scala c529d9f [Zhongshuai Pei] Update FilterPushdownSuite.scala ae3af6d [Zhongshuai Pei] Update FilterPushdownSuite.scala a04ffae [Zhongshuai Pei] Update Optimizer.scala 11beb61 [Zhongshuai Pei] Update FilterPushdownSuite.scala f2ee5fe [Zhongshuai Pei] Update Optimizer.scala be6b1d5 [Zhongshuai Pei] Update Optimizer.scala b01e622 [Zhongshuai Pei] Merge pull request alteryx#15 from apache/master 8df716a [Zhongshuai Pei] Update FilterPushdownSuite.scala d98bc35 [Zhongshuai Pei] Update FilterPushdownSuite.scala fa65718 [Zhongshuai Pei] Update Optimizer.scala ab8e9a6 [Zhongshuai Pei] Merge pull request alteryx#14 from apache/master 14952e2 [Zhongshuai Pei] Merge pull request alteryx#13 from apache/master f03fe7f [Zhongshuai Pei] Merge pull request alteryx#12 from apache/master f12fa50 [Zhongshuai Pei] Merge pull request alteryx#10 from apache/master f61210c [Zhongshuai Pei] Merge pull request alteryx#9 from apache/master 34b1a9a [Zhongshuai Pei] Merge pull request alteryx#8 from apache/master 802261c [DoingDone9] Merge pull request alteryx#7 from apache/master d00303b [DoingDone9] Merge pull request alteryx#6 from apache/master 98b134f [DoingDone9] Merge pull request alteryx#5 from apache/master 161cae3 [DoingDone9] Merge pull request alteryx#4 from apache/master c87e8b6 [DoingDone9] Merge pull request #3 from apache/master cb1852d [DoingDone9] Merge pull request #2 from apache/master c3f046f [DoingDone9] Merge pull request #1 from apache/master
markhamstra
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Apr 27, 2016
…onfig option.
## What changes were proposed in this pull request?
Currently, `OptimizeIn` optimizer replaces `In` expression into `InSet` expression if the size of set is greater than a constant, 10.
This issue aims to make a configuration `spark.sql.optimizer.inSetConversionThreshold` for that.
After this PR, `OptimizerIn` is configurable.
```scala
scala> sql("select a in (1,2,3) from (select explode(array(1,2)) a) T").explain()
== Physical Plan ==
WholeStageCodegen
: +- Project [a#7 IN (1,2,3) AS (a IN (1, 2, 3))alteryx#8]
: +- INPUT
+- Generate explode([1,2]), false, false, [a#7]
+- Scan OneRowRelation[]
scala> sqlContext.setConf("spark.sql.optimizer.inSetConversionThreshold", "2")
scala> sql("select a in (1,2,3) from (select explode(array(1,2)) a) T").explain()
== Physical Plan ==
WholeStageCodegen
: +- Project [a#16 INSET (1,2,3) AS (a IN (1, 2, 3))alteryx#17]
: +- INPUT
+- Generate explode([1,2]), false, false, [a#16]
+- Scan OneRowRelation[]
```
## How was this patch tested?
Pass the Jenkins tests (with a new testcase)
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes apache#12562 from dongjoon-hyun/SPARK-14796.
markhamstra
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Sep 26, 2016
…aggregations
## What changes were proposed in this pull request?
Partial aggregations are generated in `EnsureRequirements`, but the planner fails to
check if partial aggregation satisfies sort requirements.
For the following query:
```
val df2 = (0 to 1000).map(x => (x % 2, x.toString)).toDF("a", "b").createOrReplaceTempView("t2")
spark.sql("select max(b) from t2 group by a").explain(true)
```
Now, the SortAggregator won't insert Sort operator before partial aggregation, this will break sort-based partial aggregation.
```
== Physical Plan ==
SortAggregate(key=[a#5], functions=[max(b#6)], output=[max(b)alteryx#17])
+- *Sort [a#5 ASC], false, 0
+- Exchange hashpartitioning(a#5, 200)
+- SortAggregate(key=[a#5], functions=[partial_max(b#6)], output=[a#5, max#19])
+- LocalTableScan [a#5, b#6]
```
Actually, a correct plan is:
```
== Physical Plan ==
SortAggregate(key=[a#5], functions=[max(b#6)], output=[max(b)alteryx#17])
+- *Sort [a#5 ASC], false, 0
+- Exchange hashpartitioning(a#5, 200)
+- SortAggregate(key=[a#5], functions=[partial_max(b#6)], output=[a#5, max#19])
+- *Sort [a#5 ASC], false, 0
+- LocalTableScan [a#5, b#6]
```
## How was this patch tested?
Added tests in `PlannerSuite`.
Author: Takeshi YAMAMURO <linguin.m.s@gmail.com>
Closes apache#14865 from maropu/SPARK-17289.
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