| Commit message (Collapse) | Author | Age | Files | Lines |
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reader for wide table
## What changes were proposed in this pull request?
1) fix the RowEncoder for wide table (many columns) by splitting the generate code into multiple functions.
2) Separate DataSourceScan as RowDataSourceScan and BatchedDataSourceScan
3) Disable the returning columnar batch in parquet reader if there are many columns.
4) Added a internal config for maximum number of fields (nested) columns supported by whole stage codegen.
Closes #12098
## How was this patch tested?
Add a tests for table with 1000 columns.
Author: Davies Liu <davies@databricks.com>
Closes #12047 from davies/many_columns.
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updated
## What changes were proposed in this pull request?
Make sure QueryProgress is post after committedOffsets is updated. If QueryProgress is post before committedOffsets is updated, the listener may see a wrong sinkStatus (created from committedOffsets).
See https://amplab.cs.berkeley.edu/jenkins/job/spark-master-test-maven-hadoop-2.2/644/testReport/junit/org.apache.spark.sql.util/ContinuousQueryListenerSuite/single_listener/ for an example of the failure.
## How was this patch tested?
Existing unit tests.
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #12155 from zsxwing/SPARK-14382.
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logistic regression
## What changes were proposed in this pull request?
Adding Python API for training summaries of LogisticRegression and LinearRegression in PySpark ML.
## How was this patch tested?
Added unit tests to exercise the api calls for the summary classes. Also, manually verified values are expected and match those from Scala directly.
Author: Bryan Cutler <cutlerb@gmail.com>
Closes #11621 from BryanCutler/pyspark-ml-summary-SPARK-13430.
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## What changes were proposed in this pull request?
In order to leverage a data structure like `AggregateHashMap` (https://github.com/apache/spark/pull/12055) to speed up aggregates with keys, we need to make `ColumnarBatch.Row` mutable.
## How was this patch tested?
Unit test in `ColumnarBatchSuite`. Also, tested via `BenchmarkWholeStageCodegen`.
Author: Sameer Agarwal <sameer@databricks.com>
Closes #12103 from sameeragarwal/mutable-row.
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JIRA: https://issues.apache.org/jira/browse/SPARK-13538
## What changes were proposed in this pull request?
Add GaussianMixture and GaussianMixtureModel to ML package
## How was this patch tested?
unit tests and manual tests were done.
Local Scalastyle checks passed.
Author: Zheng RuiFeng <ruifengz@foxmail.com>
Author: Ruifeng Zheng <ruifengz@foxmail.com>
Author: Joseph K. Bradley <joseph@databricks.com>
Closes #11419 from zhengruifeng/mlgmm.
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## What changes were proposed in this pull request?
jira: https://issues.apache.org/jira/browse/SPARK-14322
OnlineLDAOptimizer uses RDD.reduce in two places where it could use treeAggregate. This can cause scalability issues. This should be an easy fix.
This is also a bug since it modifies the first argument to reduce, so we should use aggregate or treeAggregate.
See this line: https://github.com/apache/spark/blob/f12f11e578169b47e3f8b18b299948c0670ba585/mllib/src/main/scala/org/apache/spark/mllib/clustering/LDAOptimizer.scala#L452
and a few lines below it.
## How was this patch tested?
unit tests
Author: Yuhao Yang <hhbyyh@gmail.com>
Closes #12106 from hhbyyh/ldaTreeReduce.
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## What changes were proposed in this pull request?
https://issues.apache.org/jira/browse/SPARK-13786
Add save/load for Python CrossValidator/Model and TrainValidationSplit/Model.
## How was this patch tested?
Test with Python doctest.
Author: Xusen Yin <yinxusen@gmail.com>
Closes #12020 from yinxusen/SPARK-13786.
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## What changes were proposed in this pull request?
A very trivial one. It missed "|" between DISTRIBUTE and UNSET.
## How was this patch tested?
I do not think it is really needed.
Author: bomeng <bmeng@us.ibm.com>
Closes #12156 from bomeng/SPARK-14383.
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<pattern>" DDL
LIKE <pattern> is commonly used in SHOW TABLES / FUNCTIONS etc DDL. In the pattern, user can use `|` or `*` as wildcards.
1. Currently, we used `replaceAll()` to replace `*` with `.*`, but the replacement was scattered in several places; I have created an utility method and use it in all the places;
2. Consistency with Hive: the pattern is case insensitive in Hive and white spaces will be trimmed, but current pattern matching does not do that. For example, suppose we have tables (t1, t2, t3), `SHOW TABLES LIKE ' T* ' ` will list all the t-tables. Please use Hive to verify it.
3. Combined with `|`, the result will be sorted. For pattern like `' B*|a* '`, it will list the result in a-b order.
I've made some changes to the utility method to make sure we will get the same result as Hive does.
A new method was created in StringUtil and test cases were added.
andrewor14
Author: bomeng <bmeng@us.ibm.com>
Closes #12206 from bomeng/SPARK-14429.
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## What changes were proposed in this pull request?
We have ParserUtils and ParseUtils which are both utility collections for use during the parsing process.
Those names and what they are used for is very similar so I think we can merge them.
Also, the original unescapeSQLString method may have a fault. When "\u0061" style character literals are passed to the method, it's not unescaped successfully.
This patch fix the bug.
## How was this patch tested?
Added a new test case.
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Closes #12199 from sarutak/merge-ParseUtils-and-ParserUtils.
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## What changes were proposed in this pull request?
Currently, Broaccast.unpersist() will remove the file of broadcast, which should be the behavior of destroy().
This PR added destroy() for Broadcast in Python, to match the sematics in Scala.
## How was this patch tested?
Added regression tests.
Author: Davies Liu <davies@databricks.com>
Closes #12189 from davies/py_unpersist.
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This PR exposes the internal testing `MemorySink` though the data source API. This will allow users to easily test streaming applications in the Spark shell or other local tests.
Usage:
```scala
inputStream.write
.format("memory")
.queryName("memStream")
.startStream()
// Now you can query the result of the stream here.
sqlContext.table("memStream")
```
The most complicated part of the logic is choosing the checkpoint directory. There are a few requirements we are attempting to satisfy here:
- when working in the shell locally, it should just work with no extra configuration.
- when working on a cluster you should be able to make it easily create the checkpoint on a distributed file system so you can test aggregation (state checkpoints are also stored in this directory and must be accessible from workers).
- it should be clear that you can't resume since the data is just in memory.
The chosen algorithm proceeds as follows:
- the user gives a checkpoint directory, use it
- if the conf has a checkpoint location, use `$location/$queryName`
- if neither, create a local directory
- always check to make sure there are no offsets written to the directory
Author: Michael Armbrust <michael@databricks.com>
Closes #12119 from marmbrus/memorySink.
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## What changes were proposed in this pull request?
`./build/mvn` file was downloading binaries in non HTTPS mode. This PR tends to fix it.
## How was this patch tested?
By running `./build/mvn clean package` locally
Author: Prajwal Tuladhar <praj@infynyxx.com>
Closes #12182 from infynyxx/mvn_use_https.
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## What changes were proposed in this pull request?
Added an omitted word in the error message displayed by the Graphx Pregel API when `maxIterations <= 0`
## How was this patch tested?
Manual test
Author: Victor Chima <blazy2k9@gmail.com>
Closes #12205 from blazy2k9/hotfix/pregel-error-message.
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#### What changes were proposed in this pull request?
This PR is to fix the compilation errors in Scala 2.10 build, as shown in the link:
https://amplab.cs.berkeley.edu/jenkins/job/spark-master-compile-maven-scala-2.10/735/console
```
[error] /home/jenkins/workspace/spark-master-compile-maven-scala-2.10/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveDDLCommandSuite.scala:266: value contains is not a member of Option[String]
[error] assert(desc.viewText.contains("SELECT * FROM tab1"))
[error] ^
[error] /home/jenkins/workspace/spark-master-compile-maven-scala-2.10/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveDDLCommandSuite.scala:267: value contains is not a member of Option[String]
[error] assert(desc.viewOriginalText.contains("SELECT * FROM tab1"))
[error] ^
[error] /home/jenkins/workspace/spark-master-compile-maven-scala-2.10/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveDDLCommandSuite.scala:293: value contains is not a member of Option[String]
[error] assert(desc.viewText.contains("SELECT * FROM tab1"))
[error] ^
[error] /home/jenkins/workspace/spark-master-compile-maven-scala-2.10/sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveDDLCommandSuite.scala:294: value contains is not a member of Option[String]
[error] assert(desc.viewOriginalText.contains("SELECT * FROM tab1"))
[error] ^
[error] four errors found
[error] Compile failed at Apr 5, 2016 10:59:09 PM [10.502s]
```
#### How was this patch tested?
Not sure how to trigger Scala 2.10 compilation in the test environment.
Author: gatorsmile <gatorsmile@gmail.com>
Closes #12201 from gatorsmile/buildBreak2.10.
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## What changes were proposed in this pull request?
As mentioned in the ticket this was because one get path in the refactored `BlockManager` did not check for remote storage.
## How was this patch tested?
Unit test, also verified manually with reproduction in the ticket.
cc JoshRosen
Author: Eric Liang <ekl@databricks.com>
Closes #12193 from ericl/spark-14252.
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#### What changes were proposed in this pull request?
Because the concept of partitioning is associated with physical tables, we disable all the supports of partitioned views, which are defined in the following three commands in [Hive DDL Manual](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-Create/Drop/AlterView):
```
ALTER VIEW view DROP [IF EXISTS] PARTITION spec1[, PARTITION spec2, ...];
ALTER VIEW view ADD [IF NOT EXISTS] PARTITION spec;
CREATE VIEW [IF NOT EXISTS] [db_name.]view_name [(column_name [COMMENT column_comment], ...) ]
[COMMENT view_comment]
[TBLPROPERTIES (property_name = property_value, ...)]
AS SELECT ...;
```
An exception is thrown when users issue any of these three DDL commands.
#### How was this patch tested?
Added test cases for parsing create view and changed the existing test cases to verify if the exceptions are thrown.
Author: gatorsmile <gatorsmile@gmail.com>
Author: xiaoli <lixiao1983@gmail.com>
Author: Xiao Li <xiaoli@Xiaos-MacBook-Pro.local>
Closes #12169 from gatorsmile/viewPartition.
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CoarseGrainedSchedulerBackend's fields
## What changes were proposed in this pull request?
While I was reviewing #12078, I found most of CoarseGrainedSchedulerBackend's mutable fields doesn't have any comments about the thread-safe assumptions and it's hard for people to figure out which part of codes should be protected by the lock. This PR just added comments/annotations for them and also added strict access modifiers for some fields.
## How was this patch tested?
Existing unit tests.
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #12188 from zsxwing/comments.
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## What changes were proposed in this pull request?
This is just a followup to #12121, which implemented the alter table DDLs using the `SessionCatalog`. Specially, this corrects the behavior of setting the location of a datasource table. For datasource tables, we need to set the `locationUri` in addition to the `path` entry in the serde properties. Additionally, changing the location of a datasource table partition is not allowed.
## How was this patch tested?
`DDLSuite`
Author: Andrew Or <andrew@databricks.com>
Closes #12186 from andrewor14/alter-table-ddl-followup.
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## What changes were proposed in this pull request?
This PR adds a new operator `MapElements` for `Dataset.map`, it's a 1-1 mapping and is easier to adapt to whole stage codegen framework.
## How was this patch tested?
new test in `WholeStageCodegenSuite`
Author: Wenchen Fan <wenchen@databricks.com>
Closes #12087 from cloud-fan/map.
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created from non-existent checkpoint directory
## What changes were proposed in this pull request?
Take 2: avoid None.get NoSuchElementException in favor of more descriptive IllegalArgumentException if a non-existent checkpoint dir is used without a SparkContext
## How was this patch tested?
Jenkins test plus new test for this particular case
Author: Sean Owen <sowen@cloudera.com>
Closes #12174 from srowen/SPARK-13211.
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## What changes were proposed in this pull request?
Adds unit tests for java 8 lambda syntax with typed aggregates as a follow-up to #12168
## How was this patch tested?
Unit tests.
Author: Eric Liang <ekl@databricks.com>
Closes #12181 from ericl/sc-2794-2.
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## What changes were proposed in this pull request?
The `window` function was added to Dataset with [this PR](https://github.com/apache/spark/pull/12008).
This PR adds the R API for this function.
With this PR, SQL, Java, and Scala will share the same APIs as in users can use:
- `window(timeColumn, windowDuration)`
- `window(timeColumn, windowDuration, slideDuration)`
- `window(timeColumn, windowDuration, slideDuration, startTime)`
In Python and R, users can access all APIs above, but in addition they can do
- In R:
`window(timeColumn, windowDuration, startTime=...)`
that is, they can provide the startTime without providing the `slideDuration`. In this case, we will generate tumbling windows.
## How was this patch tested?
Unit tests + manual tests
Author: Burak Yavuz <brkyvz@gmail.com>
Closes #12141 from brkyvz/R-windows.
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## What changes were proposed in this pull request?
This PR fixes the following line.
```
private[spark] val STAGING_DIR = ConfigBuilder("spark.yarn.stagingDir")
.doc("Staging directory used while submitting applications.")
.stringConf
- .optional
+ .createOptional
```
## How was this patch tested?
Pass the build.
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #12187 from dongjoon-hyun/hotfix.
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Because SQL keeps track of all known configs, some customization was
needed in SQLConf to allow that, since the core API does not have that
feature.
Tested via existing (and slightly updated) unit tests.
Author: Marcelo Vanzin <vanzin@cloudera.com>
Closes #11570 from vanzin/SPARK-529-sql.
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## What changes were proposed in this pull request?
onQueryProgress is asynchronous so the user may see some future status of `ContinuousQuery`. This PR just updated comments to warn it.
## How was this patch tested?
Only updated comments.
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #12180 from zsxwing/ContinuousQueryListener-doc.
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## What changes were proposed in this pull request?
In Spark 2.0, we want to handle the most common `ALTER TABLE` commands ourselves instead of passing the entire query text to Hive. This is done using the new `SessionCatalog` API introduced recently.
The commands supported in this patch include:
```
ALTER TABLE ... RENAME TO ...
ALTER TABLE ... SET TBLPROPERTIES ...
ALTER TABLE ... UNSET TBLPROPERTIES ...
ALTER TABLE ... SET LOCATION ...
ALTER TABLE ... SET SERDE ...
```
The commands we explicitly do not support are:
```
ALTER TABLE ... CLUSTERED BY ...
ALTER TABLE ... SKEWED BY ...
ALTER TABLE ... NOT CLUSTERED
ALTER TABLE ... NOT SORTED
ALTER TABLE ... NOT SKEWED
ALTER TABLE ... NOT STORED AS DIRECTORIES
```
For these we throw exceptions complaining that they are not supported.
## How was this patch tested?
`DDLSuite`
Author: Andrew Or <andrew@databricks.com>
Closes #12121 from andrewor14/alter-table-ddl.
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lowercasing rest of string
## What changes were proposed in this pull request?
Current, SparkSQL `initCap` is using `toTitleCase` function. However, `UTF8String.toTitleCase` implementation changes only the first letter and just copy the other letters: e.g. sParK --> SParK. This is the correct implementation `toTitleCase`.
```
hive> select initcap('sParK');
Spark
```
```
scala> sql("select initcap('sParK')").head
res0: org.apache.spark.sql.Row = [SParK]
```
This PR updates the implementation of `initcap` using `toLowerCase` and `toTitleCase`.
## How was this patch tested?
Pass the Jenkins tests (including new testcase).
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #12175 from dongjoon-hyun/SPARK-14402.
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## What changes were proposed in this pull request?
The `window` function was added to Dataset with [this PR](https://github.com/apache/spark/pull/12008).
This PR adds the Python, and SQL, API for this function.
With this PR, SQL, Java, and Scala will share the same APIs as in users can use:
- `window(timeColumn, windowDuration)`
- `window(timeColumn, windowDuration, slideDuration)`
- `window(timeColumn, windowDuration, slideDuration, startTime)`
In Python, users can access all APIs above, but in addition they can do
- In Python:
`window(timeColumn, windowDuration, startTime=...)`
that is, they can provide the startTime without providing the `slideDuration`. In this case, we will generate tumbling windows.
## How was this patch tested?
Unit tests + manual tests
Author: Burak Yavuz <brkyvz@gmail.com>
Closes #12136 from brkyvz/python-windows.
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## What changes were proposed in this pull request?
This PR implements CreateFunction and DropFunction commands. Besides implementing these two commands, we also change how to manage functions. Here are the main changes.
* `FunctionRegistry` will be a container to store all functions builders and it will not actively load any functions. Because of this change, we do not need to maintain a separate registry for HiveContext. So, `HiveFunctionRegistry` is deleted.
* SessionCatalog takes care the job of loading a function if this function is not in the `FunctionRegistry` but its metadata is stored in the external catalog. For this case, SessionCatalog will (1) load the metadata from the external catalog, (2) load all needed resources (i.e. jars and files), (3) create a function builder based on the function definition, (4) register the function builder in the `FunctionRegistry`.
* A `UnresolvedGenerator` is created. So, the parser will not need to call `FunctionRegistry` directly during parsing, which is not a good time to create a Hive UDTF. In the analysis phase, we will resolve `UnresolvedGenerator`.
This PR is based on viirya's https://github.com/apache/spark/pull/12036/
## How was this patch tested?
Existing tests and new tests.
## TODOs
[x] Self-review
[x] Cleanup
[x] More tests for create/drop functions (we need to more tests for permanent functions).
[ ] File JIRAs for all TODOs
[x] Standardize the error message when a function does not exist.
Author: Yin Huai <yhuai@databricks.com>
Author: Liang-Chi Hsieh <simonh@tw.ibm.com>
Closes #12117 from yhuai/function.
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## What changes were proposed in this pull request?
Made the SPARK YARN STAGING DIR as configurable with the configuration as 'spark.yarn.staging-dir'.
## How was this patch tested?
I have verified it manually by running applications on yarn, If the 'spark.yarn.staging-dir' is configured then the value used as staging directory otherwise uses the default value i.e. file system’s home directory for the user.
Author: Devaraj K <devaraj@apache.org>
Closes #12082 from devaraj-kavali/SPARK-13063.
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same DataFrame
## What changes were proposed in this pull request?
Make StreamingRelation store the closure to create the source in StreamExecution so that we can start multiple continuous queries from the same DataFrame.
## How was this patch tested?
`test("DataFrame reuse")`
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #12049 from zsxwing/df-reuse.
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ObjectOperator
## What changes were proposed in this pull request?
This PR decouples deserializer expression resolution from `ObjectOperator`, so that we can use deserializer expression in normal operators. This is needed by #12061 and #12067 , I abstracted the logic out and put them in this PR to reduce code change in the future.
## How was this patch tested?
existing tests.
Author: Wenchen Fan <wenchen@databricks.com>
Closes #12131 from cloud-fan/separate.
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## What changes were proposed in this pull request?
In `LogPage`, the content to be rendered is defined as follows.
```
val content =
<html>
<body>
{linkToMaster}
<div>
<div style="float:left; margin-right:10px">{backButton}</div>
<div style="float:left;">{range}</div>
<div style="float:right; margin-left:10px">{nextButton}</div>
</div>
<br />
<div style="height:500px; overflow:auto; padding:5px;">
<pre>{logText}</pre>
</div>
</body>
</html>
UIUtils.basicSparkPage(content, logType + " log page for " + pageName)
```
As you can see, <html> and <body> tags will be rendered.
On the other hand, `UIUtils.basicSparkPage` will render those tags so those tags will be nested.
```
def basicSparkPage(
content: => Seq[Node],
title: String,
useDataTables: Boolean = false): Seq[Node] = {
<html>
<head>
{commonHeaderNodes}
{if (useDataTables) dataTablesHeaderNodes else Seq.empty}
<title>{title}</title>
</head>
<body>
<div class="container-fluid">
<div class="row-fluid">
<div class="span12">
<h3 style="vertical-align: middle; display: inline-block;">
<a style="text-decoration: none" href={prependBaseUri("/")}>
<img src={prependBaseUri("/static/spark-logo-77x50px-hd.png")} />
<span class="version"
style="margin-right: 15px;">{org.apache.spark.SPARK_VERSION}</span>
</a>
{title}
</h3>
</div>
</div>
{content}
</div>
</body>
</html>
}
```
These are the screen shots before this patch is applied.
![before1](https://cloud.githubusercontent.com/assets/4736016/14273236/03cbed8a-fb44-11e5-8786-bc1bfa4d3f8c.png)
![before2](https://cloud.githubusercontent.com/assets/4736016/14273237/03d1741c-fb44-11e5-9dee-ea93022033a6.png)
And these are the ones after this patch is applied.
![after1](https://cloud.githubusercontent.com/assets/4736016/14273248/1b6a7d8a-fb44-11e5-8a3b-69964f3434f6.png)
![after2](https://cloud.githubusercontent.com/assets/4736016/14273249/1b6b9c38-fb44-11e5-9d6f-281d64c842e4.png)
The appearance is not changed but the html source code is changed.
## How was this patch tested?
Manually run some jobs on my standalone-cluster and check the WebUI.
Author: Kousuke Saruta <sarutak@oss.nttdata.co.jp>
Closes #12170 from sarutak/SPARK-14397.
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## What changes were proposed in this pull request?
KMeansSummary class : deprecated size and added clusterSizes
Author: Shally Sangal <shallysangal@gmail.com>
Closes #12084 from shallys/master.
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SQL Context.
#### What changes were proposed in this pull request?
Currently, the weird error messages are issued if we use Hive Context-only operations in SQL Context.
For example,
- When calling `Drop Table` in SQL Context, we got the following message:
```
Expected exception org.apache.spark.sql.catalyst.parser.ParseException to be thrown, but java.lang.ClassCastException was thrown.
```
- When calling `Script Transform` in SQL Context, we got the message:
```
assertion failed: No plan for ScriptTransformation [key#9,value#10], cat, [tKey#155,tValue#156], null
+- LogicalRDD [key#9,value#10], MapPartitionsRDD[3] at beforeAll at BeforeAndAfterAll.scala:187
```
Updates:
Based on the investigation from hvanhovell , the root cause is `visitChildren`, which is the default implementation. It always returns the result of the last defined context child. After merging the code changes from hvanhovell , it works! Thank you hvanhovell !
#### How was this patch tested?
A few test cases are added.
Not sure if the same issue exist for the other operators/DDL/DML. hvanhovell
Author: gatorsmile <gatorsmile@gmail.com>
Author: xiaoli <lixiao1983@gmail.com>
Author: Herman van Hovell <hvanhovell@questtec.nl>
Author: Xiao Li <xiaoli@Xiaos-MacBook-Pro.local>
Closes #12134 from gatorsmile/hiveParserCommand.
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## What changes were proposed in this pull request?
This PR adds Native execution of SHOW TBLPROPERTIES command.
Command Syntax:
``` SQL
SHOW TBLPROPERTIES table_name[(property_key_literal)]
```
## How was this patch tested?
Tests added in HiveComandSuiie and DDLCommandSuite
Author: Dilip Biswal <dbiswal@us.ibm.com>
Closes #12133 from dilipbiswal/dkb_show_tblproperties.
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## What changes were proposed in this pull request?
This adds the corresponding Java static functions for built-in typed aggregates already exposed in Scala.
## How was this patch tested?
Unit tests.
rxin
Author: Eric Liang <ekl@databricks.com>
Closes #12168 from ericl/sc-2794.
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## What changes were proposed in this pull request?
This fix tries to address the issue in PySpark where `spark.python.worker.memory`
could only be configured with a lower case unit (`k`, `m`, `g`, `t`). This fix
allows the upper case unit (`K`, `M`, `G`, `T`) to be used as well. This is to
conform to the JVM memory string as is specified in the documentation .
## How was this patch tested?
This fix adds additional test to cover the changes.
Author: Yong Tang <yong.tang.github@outlook.com>
Closes #12163 from yongtang/SPARK-14368.
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types
## What changes were proposed in this pull request?
In spark.ml, GBT and RandomForest expose the trait DecisionTreeModel in the trees method, but they should not since it is a private trait (and not ready to be made public). It will also be more useful to users if we return the concrete types.
This PR: return concrete types
The MIMA checks appear to be OK with this change.
## How was this patch tested?
Existing unit tests
Author: Joseph K. Bradley <joseph@databricks.com>
Closes #12158 from jkbradley/hide-dtm.
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With the addition of StreamExecution (ContinuousQuery) to Datasets, data will become unbounded. With unbounded data, the execution of some methods and operations will not make sense, e.g. `Dataset.count()`.
A simple API is required to check whether the data in a Dataset is bounded or unbounded. This will allow users to check whether their Dataset is in streaming mode or not. ML algorithms may check if the data is unbounded and throw an exception for example.
The implementation of this method is simple, however naming it is the challenge. Some possible names for this method are:
- isStreaming
- isContinuous
- isBounded
- isUnbounded
I've gone with `isStreaming` for now. We can change it before Spark 2.0 if we decide to come up with a different name. For that reason I've marked it as `Experimental`
Author: Burak Yavuz <brkyvz@gmail.com>
Closes #12080 from brkyvz/is-streaming.
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Use PartitionerAwareUnionRDD when possbile for optimizing shuffling and
preserving the partitioner.
Author: Guillaume Poulin <poulin.guillaume@gmail.com>
Closes #10382 from gpoulin/dstream_union_optimisation.
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## What changes were proposed in this pull request?
Remove sbt-idea plugin as importing sbt project provides much better support.
Author: Luciano Resende <lresende@apache.org>
Closes #12151 from lresende/SPARK-14366.
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This change modifies the "assembly/" module to just copy needed
dependencies to its build directory, and modifies the packaging
script to pick those up (and remove duplicate jars packages in the
examples module).
I also made some minor adjustments to dependencies to remove some
test jars from the final packaging, and remove jars that conflict with each
other when packaged separately (e.g. servlet api).
Also note that this change restores guava in applications' classpaths, even
though it's still shaded inside Spark. This is now needed for the Hadoop
libraries that are packaged with Spark, which now are not processed by
the shade plugin.
Author: Marcelo Vanzin <vanzin@cloudera.com>
Closes #11796 from vanzin/SPARK-13579.
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## What changes were proposed in this pull request?
This PR basically re-do the things in #12068 but with a different model, which should work better in case of small files with different sizes.
## How was this patch tested?
Updated existing tests.
Ran a query on thousands of partitioned small files locally, with all default settings (the cost to open a file should be over estimated), the durations of tasks become smaller and smaller, which is good (the last few tasks will be shortest).
Author: Davies Liu <davies@databricks.com>
Closes #12095 from davies/file_cost.
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## What changes were proposed in this pull request?
RDD.toLocalIterator() could be used to fetch one partition at a time to reduce the memory usage. Right now, for Dataset/Dataframe we have to use df.rdd.toLocalIterator, which is super slow also requires lots of memory (because of the Java serializer or even Kyro serializer).
This PR introduce an optimized toLocalIterator for Dataset/DataFrame, which is much faster and requires much less memory. For a partition with 5 millions rows, `df.rdd.toIterator` took about 100 seconds, but df.toIterator took less than 7 seconds. For 10 millions row, rdd.toIterator will crash (not enough memory) with 4G heap, but df.toLocalIterator could finished in 12 seconds.
The JDBC server has been updated to use DataFrame.toIterator.
## How was this patch tested?
Existing tests.
Author: Davies Liu <davies@databricks.com>
Closes #12114 from davies/local_iterator.
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## What changes were proposed in this pull request?
Scala traits are difficult to maintain binary compatibility on, and as a result we had to introduce JavaSparkListener. In Spark 2.0 we can change SparkListener from a trait to an abstract class and then remove JavaSparkListener.
## How was this patch tested?
Updated related unit tests.
Author: Reynold Xin <rxin@databricks.com>
Closes #12142 from rxin/SPARK-14358.
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## What changes were proposed in this pull request?
It's a mistake that HeartbeatReceiver object was made public in Spark 1.x.
## How was this patch tested?
N/A
Author: Reynold Xin <rxin@databricks.com>
Closes #12148 from rxin/SPARK-14364.
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## What changes were proposed in this pull request?
Currently we extract Python UDFs into a special logical plan EvaluatePython in analyzer, But EvaluatePython is not part of catalyst, many rules have no knowledge of it , which will break many things (for example, filter push down or column pruning).
We should treat Python UDFs as normal expressions, until we want to evaluate in physical plan, we could extract them in end of optimizer, or physical plan.
This PR extract Python UDFs in physical plan.
Closes #10935
## How was this patch tested?
Added regression tests.
Author: Davies Liu <davies@databricks.com>
Closes #12127 from davies/py_udf.
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## What changes were proposed in this pull request?
Add a processing time trigger to control the batch processing speed
## How was this patch tested?
Unit tests
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #11976 from zsxwing/trigger.
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