, use method Streamingcontext.actorstream (Actorprops, Actor-name). Spark Streaming uses the Streamingcontext.queuestream (Queueofrdds) method to create an RDD queue-based DStream, and each RDD queue is treated as a piece of data stream in DStream. 2.2.2.2 Advanced Sources
This type of source requires an interface to an external Non-spark library, some of which have complex dependencies (such as Kafka, Flume). Therefore, creating dstreams from these sources requires a clear dependency. For examp
backup optimization off; # default -- whether TO enable backup optimization configure default device type to disk; # default -- channel configuration supports two SBT and DISK types, and SBT is the tape configure controlfile autobackup off; # default -- whether to automatically back up the control file CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE D Isk to '% F'; # default -- specify the automati
Print(Args,type (args))5 Print(Kwargs,type (Kwargs))6 #Show (11,22,33,44,aa= "SDF", bb= "456") #联合使用时, ask to write a star in front, write two stars behind, or will error7Li = [11,22,33,44,55]8DIC = {"N1": 44,"N2":"DSF"}9Show (Li,dic)#Put Li and dic as 2 elements into a tuple, the dictionary is emptyTenShow (*li,**dic)#If you want to output the value in the original format, add a star or add 2 stars to the corresponding One A #Execution Result: -([11, 22, 33, 44, 55], {'N1': 44,'N2':'D
1. Configure JDK: see here2. Download Scala and install3. Configure the Scala environment variable to include Scala's installation path in pathPS: Verify that the installation is correct: cmd-"input Scala, if a Scala environment is present, the configuration is successful4. Download IntelliJ idea, and install5. Open the IDE: Click Configure->plugins:Point of Browse repositories to: Enter Scala display For example, there is an installation option on the right (because I have installed it, so the
spark1.4 Windows Local debugging Environment Building summary Version 1.scalaSCALA-2.10.4 Official recommendationscala-2.11.7 "Not recommended, non-SBT project, load after need" Version 2.sparkSpark-1.4.0-bin-hadoop2.6.tgz 3.hadoopVersion 3.1Hadoop-2.6.0.tar.gz3.2 Environment variableshadoop_home=e:/ysg.tools/spark/hadoop-2.6.0OrSystem.setproperty ("Hadoop.home.dir", "E:\ysg.tools\spark\hadoop-2.6.0");3.3winutils.exe winutils.exe拷贝至spark/hadoop-2.6.0/
Last time we introduced:OracleExamples of Common Database rman commands. This article introduces the Oracle databaseRman environment ConfigurationNext, let's take a look at this part!
1. Configure Automatic Channels
Configure Automatic channel concurrency. RMAN automatically allocates two channels:
RMAN>configuredevicetypediskparallelism2;
RMAN>configuredevicetypesbtparallelism2;
Configure the backup file format for all channels
RMAN>configurechanneldevicetypedisk
2>format'/ora
Today, I am running the normal Play framwork 2.0 project on the server, the following error occurs [plain] [info] Compiling 25 Scala sources and 1 Java source to/home/admin/git/project/target/scala-2.9.1/classes... [error] {file:/home/admin/git/project/} project/compile: java. lang. stackOverflowError [error] Total time: 19 s, completed 15:35:14 google, mostly because the conf/routes file is too large (about 200 rows, run the [plain] export _ JAVA_OPTIONS = "-Xms64m-Xmx1 M-Xss2m "can be solved,
too high (some disks are busy with IO up to 100%). We can solve this problem by using rman to read the disk at the current speed during Backup.
The script is adjusted as follows:
Run {
Allocate channel t1 type 'sbt _ tape 'parms' ENV = (TDPO_OPTFILE =/usr/tivoli/tsm/client/oracle/bin64/tdpo. opt) 'rate20m;
Allocate channel t2 type 'sbt _ tape 'parms' ENV = (TDPO_OPTFILE =/usr/tivoli/tsm/client/oracle/bin64
My 64-bit machine, when Hadoop started with this problem because the local library that Hadoop itself comes with is 32-bit, I now hadoop2.2.0 have replaced the local library with 64 bits, and the corresponding version was used when compiling spark:spark_hadoop_version=2.2.0 spark_yarn=true./SBT/SBT AssemblyBut now when you get into the spark shell, there's still the following warning: Has anyone successfull
cd sparkapp/
ls
find .
/usr/local/sbt/sbt package
Package Complete:
[emailprotected]:~/sparkapp$ ls
project simple.sbt src target
Packing location:We can then submit the generated jar package to spark through Spark-submit:
/ usr / Span class= "KWD" >local / spark / bin / spark - submit -- class "Simpleapp" ~/ sparkapp / targe
1. Install SBTNormal installation process.When running in CMD, to set the agent in advance (if the Internet has a proxy), set java_opts=-dhttp.proxyset=true-dhttp.proxyhost=172.17.18.84-dhttp.proxyport= 8080. In this way, SBT can be downloaded on the Internet, or subsequent installations will not succeed.2. Install ScalaNormal installation process.3. Install gitNormal installation. If you have an agent on the Internet, you need to set it in bash, git
Study Splay Time reference a lot of different materials, but the result of too miscellaneous reference material is template recall has always been problematic, especially the last found on the Internet to find all kinds of data have different degrees of error.Fortunately, after a few days of gnawing down at last.Splay is also a kind of balance tree, but unlike AVL tree, SBT, splay not always maintain a strict balance, so it may be slower in speed, but
Basic Environment:I was in the Win7 environment, spark1.0.2,hbase0.9.6.1Tools for use: IDEA14.1, Scala 2.11.6, SBT. I am now a test environment that uses a single node1. After using idea to create an SBT project, add the configuration file to the BUILD.SBT fileLibrarydependencies + = "Org.apache.spark"% "spark-core_2.10"% "1.0.2"% "provided" + = " Org.apache.spark "%" spark-streaming_2.10 "%" 1.0.2 "%" pr
POJ_3481
To practice the sbt I just learned yesterday, I wrote it with SBT. But in fact, this question can be implemented by maintaining a maximum heap and a minimum heap.
#include#include#define MAXD 1000010int T, node, key[MAXD], client[MAXD], left[MAXD], right[MAXD], size[MAXD];void left_rotate(int T){int k = right[T]; right[T] = left[k]; left[k] = T; size[k] = size[T]; size[T] = size[left[T]
channel command to unallocate the channel.
Allocate channel for maintenance device type (disk, SBT ...)
RMAN> Delete Obsolete; -- delete old backup
RMAN> Delete expired backup;
RMAN> Delete backupset ID;
RMAN> Delete backup; -- delete all backups
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1. List the corresponding event RMAN> List in
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