lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hoss Man (JIRA)" <>
Subject [jira] [Commented] (SOLR-8689) bin/solr.cmd does not start with recent Verona builds of Java 9 because of version parsing issue
Date Mon, 21 Aug 2017 16:27:00 GMT


Hoss Man commented on SOLR-8689:

My thoughts in no particular order -- w/o having looked at /understood the patch (i'm not
familar with most windows batch file syntax)...

bq. BTW, I set this as blocker, as we cannot release Solr 7 at the same time like Java 9 and
it won't work.

I don't think "solr + windows + jdk9" is an important enough use case to warrant holding up
lucene/solr 7.  We can release note that solr.cmd startup script doesn't work in that permutation
and focus on fixing later (if anyone is really hardcore about using solr + windows + jdk9
they can probably work around using the solr.cmd script)

bq. The GC_LOG_OPTS used as it was before the change on Java <= 8, but for Java 9 it is
ignored. I have no better idea how to do this. IMHO, this is better than not working at all!
I added documentation for this.

My personal opinion is that it would be better to continue to support things as best we can
for existing solr users who may upgrade solr w/o caring about jdk9 at all -- ie: keep supporting/using
GC_LOG_OPTS -- but in the special in the case where they use jdk9 _and_ try to specify a value
for the GC_LOG_OPTS ... we should hard fail w/message that solr can't support GC_LOG_OPTS
 when using jdk9.  

I believe you said in your current patch you "ignored" GC_LOG_OPTS when using jdk9? ... i
think that's a mistake, as existing solr users who may have already set GC_LOG_OPTS and then
later upgrade to jdk9 will get confusing silently different behavior.  better to fail fast
and be clear that they can't do that (unless/until we find a better solution)

> bin/solr.cmd does not start with recent Verona builds of Java 9 because of version parsing
> ------------------------------------------------------------------------------------------------
>                 Key: SOLR-8689
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: scripts and tools
>    Affects Versions: 5.5, 6.0
>         Environment: Windows 7
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>            Priority: Blocker
>              Labels: Java9
>             Fix For: 7.0, master (8.0), 7.1
>         Attachments: SOLR-8689.patch, SOLR-8689.patch, SOLR-8689.patch, SOLR-8689.patch
> At least on Windows, Solr 5.5 does not start with the shell script using a Verona-Java-9
> {noformat}
> *****************************************************
> JAVA_HOME = C:\Program Files\Java\jdk-9
> java version "9-ea"
> Java(TM) SE Runtime Environment (build
> Java HotSpot(TM) 64-Bit Server VM (build, mixed
> *****************************************************
> C:\Users\Uwe Schindler\Desktop\solr-5.5.0\bin>solr start
> ERROR: Java 1.7 or later is required to run Solr. Current Java version is: 9-ea
> {noformat}
> I don't know if this is better with Linux, but I assume the version parsing is broken
(e.g., String#startsWith, interpret as floating point number,...)
> We should fix this before Java 9 gets released! The version numbering scheme changed

This message was sent by Atlassian JIRA

To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message