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https://issues.apache.org/jira/browse/SOLR-7460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prasanta Behera updated SOLR-7460:
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Labels: easyfix easytest (was: )
> bin/solr start command shows an error when used with Java 1.7.0 - bin/solr:
> line 1290: [[: .0: syntax error: operand expected (error token is ".0")
> ---------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-7460
> URL: https://issues.apache.org/jira/browse/SOLR-7460
> Project: Solr
> Issue Type: Bug
> Components: scripts and tools
> Affects Versions: 5.1
> Reporter: Prasanta Behera
> Priority: Trivial
> Labels: easyfix, easytest
>
> I am trying to start Solr 5.1.0 using Java 1.7.0, Solr does start but I see
> this error:
> $ bin/solr start
> bin/solr: line 1290: [[: .0: syntax error: operand expected (error token is
> ".0")
> Waiting to see Solr listening on port 8983 [/]
> Started Solr server on port 8983 (pid=13627). Happy searching!
> Digging further, I saw in solr script:
> 1285 JAVA_VERSION=`echo "$("$JAVA" -version 2>&1)" | grep "java version" |
> awk '{ print substr($3, 2, length($3)-2); }'`
> 1286 if [ "${JAVA_VERSION:0:3}" == "1.7" ]; then
> 1287 # Specific Java version hacking
> 1288 #GC_TUNE+=('-XX:CMSFullGCsBeforeCompaction=1'
> '-XX:CMSTriggerPermRatio=80')
> 1289 JAVA_MINOR_VERSION=${JAVA_VERSION:(-2)}
> 1290 if [[ $JAVA_MINOR_VERSION -ge 40 && $JAVA_MINOR_VERSION -le 51 ]];
> then
> 1291 GC_TUNE+=('-XX:-UseSuperWord')
> 1292 echo -e "\nWARNING: Java version $JAVA_VERSION has known bugs with
> Lucene and requires the -XX:-UseSuperWord flag. Please consider upgrading
> your JVM.\n"
> When JAVA_VERSION is 1.7.0 to 1.7.9 the line (#1289):
> JAVA_MINOR_VERSION=${JAVA_VERSION:(-2)}
> will evaluate JAVA_MINOR_VERSION as .0 hence the if check that follows fails.
> The above code would work fine for Java versions 1.7.10 and above
> This line should be changed to (chop the string 4 positions from start to get
> the minor version, instead of chopping 2 positions from the end
> JAVA_MINOR_VERSION=${JAVA_VERSION:(4)}
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