Hi, I have problems with starting Neo4J on a server with 256GiB of RAM.
$ ./neo4j-community-2.1.5/bin/neo4j start ERROR! Neo4j cannot be started using java version . * Please use Oracle(R) Java(TM) 7 or OpenJDK(TM) to run Neo4j Server. * Please see http://docs.neo4j.org/ for Neo4j Server installation instructions. The problem comes from the checkjvmcompatibility function in ./bin/utils, as it tries to run JVM without giving initial and maximum heap size. Due the large amount of RAM in the server, JVM tries to allocate to many GiB which are not always free. # check if running Oracle JDK 7 or OpenJDK 7, warn if not checkjvmcompatibility() { # Shut down if java version < 1.7 JAVAVERSION=$("$JAVACMD" ${JAVA_OPTS} -version 2>&1 | awk -F '"' '/version/ {print $2}') if [[ "$JAVAVERSION" < "1.7" ]]; then complain_about_java_version #exit 1 fi $JAVACMD ${JAVA_OPTS} -version 2>&1 | egrep -q "(Java HotSpot\\(TM\\)|OpenJDK) (64-Bit Server|Server|Client) VM" if [ $? -eq 1 ] then warn_about_java_runtime fi } After fixing the function to the following, I can start Neo4J correctly. # check if running Oracle JDK 7 or OpenJDK 7, warn if not checkjvmcompatibility() { # Get Java version output JAVAVERSIONOUTPUT=$("$JAVACMD" -Xms10M -Xmx10M -version 2>&1) # Check if JVM was able to start correctly. if [ $? -ne 0 ] ; then echo 'ERROR: Problem with starting JVM.' exit 1 fi # Shut down if java version < 1.7 JAVAVERSION=$(echo "$JAVAVERSIONOUTPUT" | awk -F '"' '/version/ {print $2}') if [[ "$JAVAVERSION" < "1.7" ]]; then complain_about_java_version exit 1 fi echo "$JAVAVERSIONOUTPUT" | egrep -q "(Java HotSpot\\(TM\\)|OpenJDK) (64-Bit Server|Server|Client) VM" if [ $? -eq 1 ] then warn_about_java_runtime fi } According to the manual of grep: egrep is deprecated, so it might be better to use grep -E instead: In addition, three variant programs egrep, fgrep and rgrep are available. egrep is the same as grep -E. fgrep is the same as grep -F. rgrep is the same as grep -r. Direct invocation as either egrep or fgrep is deprecated, but is provided to allow historical applications that rely on them to run unmodified. Kind regards, Gert Hulselmans -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
