[
https://issues.apache.org/jira/browse/SOLR-8080?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jan Høydahl updated SOLR-8080:
------------------------------
Attachment: SOLR-8080.patch
Attaching fix.
Sample output on Debian when no Java installed:
{noformat}
root@a57c6a4949aa:/# service solr start
Java not found, or an error was encountered when running java.
A working Java 8 JRE is required to run Solr!
Please install latest version of Java 8 or set JAVA_HOME properly.
Command that we tried: 'java -version', with response:
/opt/solr/bin/solr: line 124: java: command not found
Debug information:
JAVA_HOME: N/A
Active Path:
/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
{noformat}
Sample print when Java version too old:
{noformat}
root@a57c6a4949aa:/# service solr start
Your current version of Java is too old to run this version of Solr
We found version 1.7.0_111, using command 'java'
Please install latest version of Java 8 or set JAVA_HOME properly.
Debug information:
JAVA_HOME: N/A
Active Path:
/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
{noformat}
> 'bin/solr start' should print informative errors when the JVM version is
> insufficient
> -------------------------------------------------------------------------------------
>
> Key: SOLR-8080
> URL: https://issues.apache.org/jira/browse/SOLR-8080
> Project: Solr
> Issue Type: Bug
> Components: scripts and tools
> Affects Versions: 5.3, 5.4, 6.0
> Reporter: Steve Rowe
> Priority: Minor
> Attachments: SOLR-8080.patch
>
>
> From the unpacked 5.3.0 distribution, with Java6 set in {{$JAVA_HOME}} and
> the {{$PATH}}, there is some indication that there is a problem (Java7 is
> minimum supported JVM version) - bin/solr times out waiting for Solr to start
> up - but no info is printed about what the problem might be:
> {noformat}
> $ echo $JAVA_HOME
> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
> $ java -version
> java version "1.6.0_65"
> Java(TM) SE Runtime Environment (build 1.6.0_65-b14-466.1-11M4716)
> Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-466.1, mixed mode)
> $ bin/solr start
> Waiting up to 30 seconds to see Solr running on port 8983 [\] Still not
> seeing Solr listening on 8983 after 30 seconds!
> tail:~/temp/solr-5.3.0/server/logs/solr.log: No such file or directory
> {noformat}
> On trunk (built via {{ant server}} with Java8), the situation is worse -
> although Solr started, it's not in a usable state, and there is no indication
> given that there is a problem:
> {noformat}
> $ java -version
> java version "1.7.0_71"
> Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
> Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)
> $ echo $JAVA_HOME
> /Library/Java/JavaVirtualMachines/jdk1.7.0_71.jdk/Contents/Home
> sarowe@smb [2048]$ bin/solr start
> Waiting up to 30 seconds to see Solr running on port 8983 [/]
> Started Solr server on port 8983 (pid=50551). Happy searching!
> {noformat}
> From {{server/logs/solr.log}}:
> {noformat}
> 2015-09-21 17:15:28.991 WARN (main) [ ] o.e.j.u.c.AbstractLifeCycle FAILED
> So
> lrRequestFilter: java.lang.UnsupportedClassVersionError:
> org/apache/solr/servlet
> /SolrDispatchFilter : Unsupported major.minor version 52.0
> java.lang.UnsupportedClassVersionError:
> org/apache/solr/servlet/SolrDispatchFilt
> er : Unsupported major.minor version 52.0
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
> at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:14
> 2)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> [...]
> 2015-09-21 17:15:29.020 INFO (main) [ ] o.e.j.s.ServerConnector Started
> ServerConnector@24d25ddc{HTTP/1.1}{0.0.0.0:8983}
> 2015-09-21 17:15:29.020 INFO (main) [ ] o.e.j.s.Server Started @1237ms
> {noformat}
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