java 8 - How select a given JDK in CentOS -

-

i want update java version in centos machine,

actually when java -version gives me : 

$java -version java version "1.7.0_79" openjdk runtime environment (rhel-2.5.5.3.el6_6-x86_64 u79-b14) openjdk 64-bit server vm (build 24.79-b02, mixed mode)

i'm using alternatives configure java interpreter should used : 

 sudo alternatives --config java

it gives me : 

there 3 programs provide 'java'.        selection    command     -----------------------------------------------     *  1           /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java        2           /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java      + 3           /usr/lib/jvm/jdk1.8.0_91/bin/java  enter keep current selection[+], or type selection number:

and selected number 3 (which jdk1.8.0_91)

however when redo java -version still openjdk 1.7 selected !!!

$java -version java version "1.7.0_79" openjdk runtime environment (rhel-2.5.5.3.el6_6-x86_64 u79-b14) openjdk 64-bit server vm (build 24.79-b02, mixed mode)

run these command check configuration:

  • $ java , result should /bin/java or /usr/bin/java. otherwise, check environment profile (/etc/bashrc, /etc/profile, ~/.bash_profile, ~/.bashrc, etc.) , remove similar export java_home="/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.79.x86_64/jre" declared.
  • $ ls -al /bin/java or $ ls -al /usr/bin/java should point /etc/alternatives/java or alternatives ineffective.

Comments

Post a Comment

Popular posts from this blog

sequelize.js - Sequelize group by with association includes id -

-
so when requesting group sequelize follows: return models.workingcalendar .findall({ attributes: [ 'workingcalendar.periodid', 'workingcalendar.date', 'period.name' ], include: [ { model: models.period, attributes: [] } ], where: { getsudoid: currentgetsudo.id, unitplantid: unitplantid }, group: ['workingcalendar.periodid', 'workingcalendar.date', 'period.name'], }); sequelize run query: select [workingcalendar].[id], [workingcalendar].[periodid], [workingcalendar].[date], [period].[name] [workingcalendars] [workingcalendar] left outer join [periods] [period] on [wor...
Read more

delphi - Take screenshot in webcam using VFrames in Console Application -

-
i'm doing program take picture of webcam using delphi xe2 , vframes achieve this, problem have figured out, in graphic application works fine, when use unit in console application, returns me error saying first chance exception @ $76b6b727. exception class eaccessviolation message 'access violation @ address 004a271b in module 'console.exe'. read of address 00000260'. process console.exe (3676) my unit : unit webcam; interface uses sysutils, windows, vcl.imaging.jpeg, vcl.graphics, vsample, vframes, classes; type twebcam = class private procedure newvideoframeevent(sender: tobject; width, height: integer; dataptr: pointer); public constructor create; destructor destroy; override; procedure capture_webcam(take_name: string); end; var web_image: tvideoimage; name_screen: string; implementation constructor twebcam.create; begin inherited create; end; destructor twebcam.destroy; begin inherited destroy; end; ...
Read more

ubuntu - Executors lost when starting pyspark in YARN client mode -

-
i able run pyspark in yarn client mode in laptop , trying setup in laptop. however, time can't running. when try start pyspark in yarn client mode, gives me following error. using dynamic resource allocation, have set spark_executor_memory less yarn container memory. using hadoop 2.6.4, spark 1.6.1, ubuntu 15.10 is possible error due network issues? 16/06/12 01:49:34 info scheduler.dagscheduler: executor lost: 1 (epoch 0) in [1]: 16/06/12 01:49:34 info cluster.yarnclientschedulerbackend: disabling executor 1. 16/06/12 01:49:34 info storage.blockmanagermasterendpoint: trying remove executor 1 blockmanagermaster. 16/06/12 01:49:34 info storage.blockmanagermasterendpoint: removing block manager blockmanagerid(1, 192.168.2.16, 37900) 16/06/12 01:49:34 error client.transportclient: failed send rpc 9123554941984942265 192.168.2.16/192.168.2.16:47630: java.nio.channels.closedchannelexception java.nio.channels.closedchannelexception 16/06/12 01:49:34 info storage.blockmanagermast...
Read more