[jira] [Commented] (NUTCH-1345) JAVA_HOME should not be required
[ https://issues.apache.org/jira/browse/NUTCH-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13552041#comment-13552041 ] Ben McCann commented on NUTCH-1345: --- You've probably set $NUTCH_JAVA_HOME then. I don't see why that should be required however if Java in on your path. It's fine to allow for an override, but it's just one extra thing to do to get setup for most people. JAVA_HOME should not be required Key: NUTCH-1345 URL: https://issues.apache.org/jira/browse/NUTCH-1345 Project: Nutch Issue Type: Improvement Affects Versions: 1.4 Reporter: Ben McCann Priority: Minor Attachments: nutch, nutch.patch Trying to run Nutch spits out the message Error: JAVA_HOME is not set. I already have java on my path, so I really wish I didn't need to set JAVA_HOME. It's an extra step to get up and running and is not updated by Ubuntu's update-alternatives, so it makes it a lot harder to switch between versions of Java. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1345) JAVA_HOME should not be required
[ https://issues.apache.org/jira/browse/NUTCH-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13552082#comment-13552082 ] Sebastian Nagel commented on NUTCH-1345: JAVA_HOME (or NUTCH_JAVA_HOME) is currently used for two things: # use $JAVA_HOME/bin/java as Java executable # determining the location of lib/tools.jar which is part of JDK (not JRE). It's probably an unneeded artifact, cf. MAPREDUCE-3624 and HADOOP-7374. If JAVA_HOME is not set bin/nutch definitely refuses to work. I agree that setting an environment variable may be a little hurdle, however there are arguments in favour of using JAVA_HOME: - I had to install Nutch on many customers' machines where the default java executable on PATH was not the correct one (= 1.6): setting JAVA_HOME is more transparent than manipulating PATH. NUTCH_JAVA_HOME is even more explicit. - back-ward compatibility: Nutch should be run by the same JVM as before, not accidentally by another one. - staying parallel to Hadoop which still uses JAVA_HOME Btw., let JAVA_HOME point to /usr/lib/jvm/default-java for Ubuntu's update-alternatives. JAVA_HOME should not be required Key: NUTCH-1345 URL: https://issues.apache.org/jira/browse/NUTCH-1345 Project: Nutch Issue Type: Improvement Affects Versions: 1.4 Reporter: Ben McCann Priority: Minor Attachments: nutch, nutch.patch Trying to run Nutch spits out the message Error: JAVA_HOME is not set. I already have java on my path, so I really wish I didn't need to set JAVA_HOME. It's an extra step to get up and running and is not updated by Ubuntu's update-alternatives, so it makes it a lot harder to switch between versions of Java. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (NUTCH-1345) JAVA_HOME should not be required
[ https://issues.apache.org/jira/browse/NUTCH-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13552083#comment-13552083 ] Ben McCann commented on NUTCH-1345: --- I think it's fine to allow overriding the version of Java used with JAVA_HOME or NUTCH_JAVA_HOME, but it shouldn't be required. Convention over configuration. There's far too much configuration required for Nutch. JAVA_HOME should not be required Key: NUTCH-1345 URL: https://issues.apache.org/jira/browse/NUTCH-1345 Project: Nutch Issue Type: Improvement Affects Versions: 1.4 Reporter: Ben McCann Priority: Minor Attachments: nutch, nutch.patch Trying to run Nutch spits out the message Error: JAVA_HOME is not set. I already have java on my path, so I really wish I didn't need to set JAVA_HOME. It's an extra step to get up and running and is not updated by Ubuntu's update-alternatives, so it makes it a lot harder to switch between versions of Java. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
