solr/bin/solr.in.sh

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# By default the script will use JAVA_HOME to determine which java
# to use, but you can set a specific path for Solr to use without
# affecting other Java applications on your server/workstation.
#SOLR_JAVA_HOME=""

# Increase Java Min/Max Heap as needed to support your indexing / query needs
SOLR_JAVA_MEM="-Xms512m -Xmx512m -XX:MaxPermSize=256m -XX:PermSize=256m"

# Enable verbose GC logging
GC_LOG_OPTS="-verbose:gc -XX:+PrintHeapAtGC -XX:+PrintGCDetails \
-XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime"

# These GC settings have shown to work well for a number of common Solr workloads
GC_TUNE="-XX:-UseSuperWord \
-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:CMSFullGCsBeforeCompaction=1 \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSTriggerPermRatio=80 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled \
-XX:+AggressiveOpts"

# Mac OSX and Cygwin don't seem to like the UseLargePages flag
thisOs=`uname -s`
# for now, we don't support running this script from cygwin due to problems
# like not having lsof, ps waux, curl, and awkward directory handling
if [[ "$thisOs" != "Darwin" && "${thisOs:0:6}" != "CYGWIN" ]]; then
  # UseLargePages flag causes JVM crash on Mac OSX
  GC_TUNE="$GC_TUNE -XX:+UseLargePages"
fi

# Set the ZooKeeper connection string if using an external ZooKeeper ensemble
# e.g. host1:2181,host2:2181/chroot
# Leave empty if not using SolrCloud
#ZK_HOST=""

# Set the ZooKeeper client timeout (for SolrCloud mode)
#ZK_CLIENT_TIMEOUT="15000"

# By default the start script uses "localhost"; override the hostname here
# for production SolrCloud environments to control the hostname exposed to cluster state
#SOLR_HOST="192.168.1.1"

# By default the start script uses UTC; override the timezone if needed
#SOLR_TIMEZONE="UTC"

# By default the start script enables some RMI related parameters to allow attaching
# JMX savvy tools like VisualVM remotely, set to "false" to disable that behavior
# (recommended in production environments)
ENABLE_REMOTE_JMX_OPTS="true"