周知，spark ui的默认端口是4040，然后被占用了就会顺序取+1的端口，当开了多个spark程序之后，当端口号加到了4045，在chrome浏览器里面就打不开了。会返回一个UNSAFE PORT的错误信息，其实这是浏览器禁用了你访问这个端口，程序其实是正常运行的。

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Spark port 4040

It allows the Spark web UI served in the driver pod to be accessed locally. By default, it forwards from local port 4040 to remote port 4040, which is the default Spark web UI port. Users can specify different local port and Spark dashboard by default runs on port 4040. To access it, open your web browser and type the url in the following format: http://:4040 Spark提供一种Web方式查看工作状态 UI，因此再次启动防火墙，并在firewall中加入对Spark 4040 zone=public --add-port=4040/tcp 4040端口: 2.3 Spark当前执行的任务页面查看端口4040（例如：使用spark-shell启动spark，此时的任务可以在4040端口页面查看），如果任务结束了4040端口页面不能访问 This article explains and provides solutions for some of the most common errors developers come across when installing the Spark application on Windows. So all Spark files are in a folder called C:\spark\spark-1.6.2-bin-hadoop2.6. From now on, I will refer to this folder as SPARK_HOME in this post. To test if your installation was successful, open a Command Prompt, change to SPARK_HOME directory and type bin\pyspark.

2018-09-19 · 4040 - The default port for Spark UI. Storage Server. Cassandra: 7000 - For Inter node communication within cluster nodes; 7001 - For inter node

4040. The port web UI binds to.

Every SparkContext launches a web UI, by default on port 4040, that displays useful information about the application.

16/04/13 00:09:41 INFO ui.SparkUI: Started SparkUI at http://192.168.1.121:4040. Där beställer du snabbt och smidigt din nya port, direkt från Dieden-Ekodoor till en Ingen sparkplåt; Sparkplåt Aluzink (standard); Sparkplåt Brun; Sparkplåt Koppar /favorit_vipport_ncs_s_4040_y80r_00068_tegelrod.png?itok=VyOwq6rz Oavsett om du väljer vipport eller slagport är valfriheten näst intill NCS S 4040-Y80R. Mörkröd stålplåt är sparkplåt i samma kulör som portbladet. Favorit om du önskar, välja en färg för portbladet och en annan för sparkplåten. Genomtänkt konstruktion med port och karm som en enhet, NCS S 4040-Y80R. Spark skiftnyckel vägguttag, storlek 14, 16, 18, 19, 21 mm, inre torget 3 / 8 tum 5 tändstift hylsnyckel: 14 / 16 / 18 / 19 / 21 Castoldi Turbo Drive 238, Castoldi Control flap port, Castoldi 515.61076 Schenker Watermaker membrane 4040 Running Spark using the REST application submission protocol.

spark.ui.retainedJobs: 1000: How many jobs the Spark UI and status APIs remember before garbage collecting. This is a target maximum, and fewer elements may be retained in some circumstances.
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If this port is taken, 4041 will be tried, if this one is taken, 4042 is tried and so on, until an available port is found (or maximum attempts are met).

java.net.BindException: Address already in use: Service 'SparkUI' failed after 16 retries (starting from 4040)! How to access the Spark UI. The Spark UI is the essential monitoring tool built-in with Spark. It’s a different way to access it whether the app is live or not: When the app is running, the Spark UI is served by the Spark driver directly on port 4040. ip:4040无法访问时spark history server未启动或者暂时无spark任务运行启动命令：在主节点spark_home/sbin ./start-history-server.sh 注意：4040端口显示的是正在运行的spark任务，一旦任务运行完成或者没有任务运行，4040端口是无法访问的 ip:18080无法访问时spark history server未 docker run -p : IMAGE_NAME docker run — rm -dit -p 14040:4040 — name test001 spark-base-image Note that we are exposing 4040 port of the docker container as 14040 14/05/22 11:31:54 WARN component.AbstractLifeCycle: FAILED SelectChannelConnector@0.0.0.0:4041: java.net.BindException: Address already in use java.net.BindException @Alicia Alicia did you see any port bind exception in driver logs, spark ui try to bind 4040 and if it fail then try for 4041,4042 to 44.
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I am not able to access Spark dashboard because I have another service running on port 4040,4041,4042. So, I want to change the port for Spark dashboard.

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Lägg till Där beställer du snabbt och smidigt din nya port, direkt från Dieden-Ekodoor till en Ingen sparkplåt; Sparkplåt Aluzink (standard); Sparkplåt Brun; Sparkplåt Koppar /favorit_vipport_ncs_s_4040_y80r_00068_tegelrod.png?itok=VyOwq6rz pyFiles=/home/hadoop/workspace/pycharm/test/ImageR.zip spark.ui.port=4040 2015-04-23 19:08:48,961 WARN [Thread-2] util.NativeCodeLoader: Unable to Den här artikeln undersöker noggrant komponenterna i en Spark-applikation, Drivrutinen betjänar också applikationsgränssnittet på port 4040, som visas i Oavsett om du väljer vipport eller slagport är valfriheten näst intill NCS S 4040-Y80R. Mörkröd stålplåt är sparkplåt i samma kulör som portbladet. Favorit om du önskar, välja en färg för portbladet och en annan för sparkplåten.