solr/bin/solr.in.cmd - lucene-solr - Git at Google

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

 @echo off

 REM Settings here will override settings in existing env vars or in bin/solr.  The default shipped state
 REM of this file is completely commented.

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

 REM Increase Java Min/Max Heap as needed to support your indexing / query needs
 REM set SOLR_JAVA_MEM=-Xms512m -Xmx512m

 REM Configure verbose GC logging:
 REM For Java 8: if this is set, additional params will be added to specify the log file & rotation
 REM For Java 9 or higher: GC_LOG_OPTS is currently not supported unless you are using OpenJ9. Otherwise if you set it, the startup script will exit with failure.
 REM set GC_LOG_OPTS=-verbose:gc -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime

 REM Various GC settings have shown to work well for a number of common Solr workloads.
 REM See solr.cmd GC_TUNE for the default list.
 REM set GC_TUNE=-XX:+ExplicitGCInvokesConcurrent
 REM set GC_TUNE=-XX:SurvivorRatio=4
 REM set GC_TUNE=%GC_TUNE% -XX:TargetSurvivorRatio=90
 REM set GC_TUNE=%GC_TUNE% -XX:MaxTenuringThreshold=8
 REM set GC_TUNE=%GC_TUNE% -XX:+UseConcMarkSweepGC
 REM set GC_TUNE=%GC_TUNE% -XX:ConcGCThreads=4
 REM set GC_TUNE=%GC_TUNE% -XX:ParallelGCThreads=4
 REM set GC_TUNE=%GC_TUNE% -XX:+CMSScavengeBeforeRemark
 REM set GC_TUNE=%GC_TUNE% -XX:PretenureSizeThreshold=64m
 REM set GC_TUNE=%GC_TUNE% -XX:+UseCMSInitiatingOccupancyOnly
 REM set GC_TUNE=%GC_TUNE% -XX:CMSInitiatingOccupancyFraction=50
 REM set GC_TUNE=%GC_TUNE% -XX:CMSMaxAbortablePrecleanTime=6000
 REM set GC_TUNE=%GC_TUNE% -XX:+CMSParallelRemarkEnabled
 REM set GC_TUNE=%GC_TUNE% -XX:+ParallelRefProcEnabled      etc.

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

 REM Set to true if your ZK host has a chroot path, and you want to create it automatically.
 REM set ZK_CREATE_CHROOT=true

 REM Set the ZooKeeper client timeout (for SolrCloud mode)
 REM set ZK_CLIENT_TIMEOUT=30000

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

 REM By default Solr will try to connect to Zookeeper with 30 seconds in timeout; override the timeout if needed
 REM set SOLR_WAIT_FOR_ZK=30

 REM By default the start script uses UTC; override the timezone if needed
 REM set SOLR_TIMEZONE=UTC

 REM Set to true to activate the JMX RMI connector to allow remote JMX client applications
 REM to monitor the JVM hosting Solr; set to "false" to disable that behavior
 REM (false is recommended in production environments)
 REM set ENABLE_REMOTE_JMX_OPTS=false

 REM The script will use SOLR_PORT+10000 for the RMI_PORT or you can set it here
 REM set RMI_PORT=18983

 REM Anything you add to the SOLR_OPTS variable will be included in the java
 REM start command line as-is, in ADDITION to other options. If you specify the
 REM -a option on start script, those options will be appended as well. Examples:
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.autoSoftCommit.maxTime=3000
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.autoCommit.maxTime=60000

 REM Path to a directory for Solr to store cores and their data. By default, Solr will use server\solr
 REM If solr.xml is not stored in ZooKeeper, this directory needs to contain solr.xml
 REM set SOLR_HOME=

 REM Path to a directory that Solr will use as root for data folders for each core.
 REM If not set, defaults to <instance_dir>/data. Overridable per core through 'dataDir' core property
 REM set SOLR_DATA_HOME=

 REM Changes the logging level. Valid values: ALL, TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF. Default is INFO
 REM This is an alternative to changing the rootLogger in log4j2.xml
 REM set SOLR_LOG_LEVEL=INFO

 REM Location where Solr should write logs to. Absolute or relative to solr start dir
 REM set SOLR_LOGS_DIR=logs

 REM Enables log rotation before starting Solr. Setting SOLR_LOG_PRESTART_ROTATION=true will let Solr take care of pre
 REM start rotation of logs. This is false by default as log4j2 handles this for us. If you choose to use another log
 REM framework that cannot do startup rotation, you may want to enable this to let Solr rotate logs on startup.
 REM set SOLR_LOG_PRESTART_ROTATION=false

 REM Enables jetty request log for all requests
 REM set SOLR_REQUESTLOG_ENABLED=false

 REM Set the host interface to listen on. Jetty will listen on all interfaces (0.0.0.0) by default.
 REM This must be an IPv4 ("a.b.c.d") or bracketed IPv6 ("[x::y]") address, not a hostname!
 REM set SOLR_JETTY_HOST=0.0.0.0

 REM Sets the port Solr binds to, default is 8983
 REM set SOLR_PORT=8983

 REM Restrict access to solr by IP address.
 REM Specify a comma-separated list of addresses or networks, for example:
 REM   127.0.0.1, 192.168.0.0/24, [::1], [2000:123:4:5::]/64
 REM set SOLR_IP_WHITELIST=

 REM Block access to solr from specific IP addresses.
 REM Specify a comma-separated list of addresses or networks, for example:
 REM   127.0.0.1, 192.168.0.0/24, [::1], [2000:123:4:5::]/64
 REM set SOLR_IP_BLACKLIST=

 REM Enables HTTPS. It is implictly true if you set SOLR_SSL_KEY_STORE. Use this config
 REM to enable https module with custom jetty configuration.
 REM set SOLR_SSL_ENABLED=true
 REM Uncomment to set SSL-related system properties
 REM Be sure to update the paths to the correct keystore for your environment
 REM set SOLR_SSL_KEY_STORE=etc/solr-ssl.keystore.p12
 REM set SOLR_SSL_KEY_STORE_PASSWORD=secret
 REM set SOLR_SSL_TRUST_STORE=etc/solr-ssl.keystore.p12
 REM set SOLR_SSL_TRUST_STORE_PASSWORD=secret
 REM Require clients to authenticate
 REM set SOLR_SSL_NEED_CLIENT_AUTH=false
 REM Enable clients to authenticate (but not require)
 REM set SOLR_SSL_WANT_CLIENT_AUTH=false
 REM Verify client hostname during SSL handshake
 REM set SOLR_SSL_CLIENT_HOSTNAME_VERIFICATION=false
 REM SSL Certificates contain host/ip "peer name" information that is validated by default. Setting
 REM this to false can be useful to disable these checks when re-using a certificate on many hosts
 REM set SOLR_SSL_CHECK_PEER_NAME=true
 REM Override Key/Trust Store types if necessary
 REM set SOLR_SSL_KEY_STORE_TYPE=PKCS12
 REM set SOLR_SSL_TRUST_STORE_TYPE=PKCS12

 REM Uncomment if you want to override previously defined SSL values for HTTP client
 REM otherwise keep them commented and the above values will automatically be set for HTTP clients
 REM set SOLR_SSL_CLIENT_KEY_STORE=
 REM set SOLR_SSL_CLIENT_KEY_STORE_PASSWORD=
 REM set SOLR_SSL_CLIENT_TRUST_STORE=
 REM set SOLR_SSL_CLIENT_TRUST_STORE_PASSWORD=
 REM set SOLR_SSL_CLIENT_KEY_STORE_TYPE=
 REM set SOLR_SSL_CLIENT_TRUST_STORE_TYPE=

 REM Sets path of Hadoop credential provider (hadoop.security.credential.provider.path property) and
 REM enables usage of credential store.
 REM Credential provider should store the following keys:
 REM * solr.jetty.keystore.password
 REM * solr.jetty.truststore.password
 REM Set the two below if you want to set specific store passwords for HTTP client
 REM * javax.net.ssl.keyStorePassword
 REM * javax.net.ssl.trustStorePassword
 REM More info: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/CredentialProviderAPI.html
 REM set SOLR_HADOOP_CREDENTIAL_PROVIDER_PATH=localjceks://file/home/solr/hadoop-credential-provider.jceks
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.ssl.credential.provider.chain=hadoop

 REM Settings for authentication
 REM Please configure only one of SOLR_AUTHENTICATION_CLIENT_BUILDER or SOLR_AUTH_TYPE parameters
 REM set SOLR_AUTHENTICATION_CLIENT_BUILDER=org.apache.solr.client.solrj.impl.PreemptiveBasicAuthClientBuilderFactory
 REM set SOLR_AUTH_TYPE=basic
 REM set SOLR_AUTHENTICATION_OPTS=-Dbasicauth=solr:SolrRocks

 REM Settings for ZK ACL
 REM set SOLR_ZK_CREDS_AND_ACLS=-DzkACLProvider=org.apache.solr.common.cloud.VMParamsAllAndReadonlyDigestZkACLProvider ^
 REM  -DzkCredentialsProvider=org.apache.solr.common.cloud.VMParamsSingleSetCredentialsDigestZkCredentialsProvider ^
 REM  -DzkDigestUsername=admin-user -DzkDigestPassword=CHANGEME-ADMIN-PASSWORD ^
 REM  -DzkDigestReadonlyUsername=readonly-user -DzkDigestReadonlyPassword=CHANGEME-READONLY-PASSWORD
 REM set SOLR_OPTS=%SOLR_OPTS% %SOLR_ZK_CREDS_AND_ACLS%

 REM Jetty GZIP module enabled by default
 REM set SOLR_GZIP_ENABLED=true

 REM When running Solr in non-cloud mode and if planning to do distributed search (using the "shards" parameter), the
 REM list of hosts needs to be whitelisted or Solr will forbid the request. The whitelist can be configured in solr.xml,
 REM or if you are using the OOTB solr.xml, can be specified using the system property "solr.shardsWhitelist". Alternatively
 REM host checking can be disabled by using the system property "solr.disable.shardsWhitelist"
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.shardsWhitelist=http://localhost:8983,http://localhost:8984

 REM For a visual indication in the Admin UI of what type of environment this cluster is, configure
 REM a -Dsolr.environment property below. Valid values are prod, stage, test, dev, with an optional
 REM label or color, e.g. -Dsolr.environment=test,label=Functional+test,color=brown
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.environment=prod

 REM Specifies the path to a common library directory that will be shared across all cores.
 REM Any JAR files in this directory will be added to the search path for Solr plugins.
 REM If the specified path is not absolute, it will be relative to `%SOLR_HOME%`.
 REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.sharedLib=/path/to/lib

 REM Runs solr in a java security manager sandbox. This can protect against some attacks.
 REM Runtime properties are passed to the security policy file (server\etc\security.policy)
 REM You can also tweak via standard JDK files such as ~\.java.policy, see https://s.apache.org/java8policy
 REM This is experimental! It may not work at all with Hadoop/HDFS features.
 REM set SOLR_SECURITY_MANAGER_ENABLED=false

 REM Solr is by default allowed to read and write data from/to SOLR_HOME and a few other well defined locations
 REM Sometimes it may be necessary to place a core or a backup on a different location or a different disk
 REM This parameter lets you specify file system path(s) to explicitly allow. The special value of '*' will allow any path
 REM SOLR_OPTS="%SOLR_OPTS% -Dsolr.allowPaths=D:\,E:\other\path"
	@REM
	@REM Licensed to the Apache Software Foundation (ASF) under one or more
	@REM contributor license agreements. See the NOTICE file distributed with
	@REM this work for additional information regarding copyright ownership.
	@REM The ASF licenses this file to You under the Apache License, Version 2.0
	@REM (the "License"); you may not use this file except in compliance with
	@REM the License. You may obtain a copy of the License at
	@REM
	@REM http://www.apache.org/licenses/LICENSE-2.0
	@REM
	@REM Unless required by applicable law or agreed to in writing, software
	@REM distributed under the License is distributed on an "AS IS" BASIS,
	@REM WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	@REM See the License for the specific language governing permissions and
	@REM limitations under the License.

	@echo off

	REM Settings here will override settings in existing env vars or in bin/solr. The default shipped state
	REM of this file is completely commented.

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

	REM Increase Java Min/Max Heap as needed to support your indexing / query needs
	REM set SOLR_JAVA_MEM=-Xms512m -Xmx512m

	REM Configure verbose GC logging:
	REM For Java 8: if this is set, additional params will be added to specify the log file & rotation
	REM For Java 9 or higher: GC_LOG_OPTS is currently not supported unless you are using OpenJ9. Otherwise if you set it, the startup script will exit with failure.
	REM set GC_LOG_OPTS=-verbose:gc -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime

	REM Various GC settings have shown to work well for a number of common Solr workloads.
	REM See solr.cmd GC_TUNE for the default list.
	REM set GC_TUNE=-XX:+ExplicitGCInvokesConcurrent
	REM set GC_TUNE=-XX:SurvivorRatio=4
	REM set GC_TUNE=%GC_TUNE% -XX:TargetSurvivorRatio=90
	REM set GC_TUNE=%GC_TUNE% -XX:MaxTenuringThreshold=8
	REM set GC_TUNE=%GC_TUNE% -XX:+UseConcMarkSweepGC
	REM set GC_TUNE=%GC_TUNE% -XX:ConcGCThreads=4
	REM set GC_TUNE=%GC_TUNE% -XX:ParallelGCThreads=4
	REM set GC_TUNE=%GC_TUNE% -XX:+CMSScavengeBeforeRemark
	REM set GC_TUNE=%GC_TUNE% -XX:PretenureSizeThreshold=64m
	REM set GC_TUNE=%GC_TUNE% -XX:+UseCMSInitiatingOccupancyOnly
	REM set GC_TUNE=%GC_TUNE% -XX:CMSInitiatingOccupancyFraction=50
	REM set GC_TUNE=%GC_TUNE% -XX:CMSMaxAbortablePrecleanTime=6000
	REM set GC_TUNE=%GC_TUNE% -XX:+CMSParallelRemarkEnabled
	REM set GC_TUNE=%GC_TUNE% -XX:+ParallelRefProcEnabled etc.

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

	REM Set to true if your ZK host has a chroot path, and you want to create it automatically.
	REM set ZK_CREATE_CHROOT=true

	REM Set the ZooKeeper client timeout (for SolrCloud mode)
	REM set ZK_CLIENT_TIMEOUT=30000

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

	REM By default Solr will try to connect to Zookeeper with 30 seconds in timeout; override the timeout if needed
	REM set SOLR_WAIT_FOR_ZK=30

	REM By default the start script uses UTC; override the timezone if needed
	REM set SOLR_TIMEZONE=UTC

	REM Set to true to activate the JMX RMI connector to allow remote JMX client applications
	REM to monitor the JVM hosting Solr; set to "false" to disable that behavior
	REM (false is recommended in production environments)
	REM set ENABLE_REMOTE_JMX_OPTS=false

	REM The script will use SOLR_PORT+10000 for the RMI_PORT or you can set it here
	REM set RMI_PORT=18983

	REM Anything you add to the SOLR_OPTS variable will be included in the java
	REM start command line as-is, in ADDITION to other options. If you specify the
	REM -a option on start script, those options will be appended as well. Examples:
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.autoSoftCommit.maxTime=3000
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.autoCommit.maxTime=60000

	REM Path to a directory for Solr to store cores and their data. By default, Solr will use server\solr
	REM If solr.xml is not stored in ZooKeeper, this directory needs to contain solr.xml
	REM set SOLR_HOME=

	REM Path to a directory that Solr will use as root for data folders for each core.
	REM If not set, defaults to <instance_dir>/data. Overridable per core through 'dataDir' core property
	REM set SOLR_DATA_HOME=

	REM Changes the logging level. Valid values: ALL, TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF. Default is INFO
	REM This is an alternative to changing the rootLogger in log4j2.xml
	REM set SOLR_LOG_LEVEL=INFO

	REM Location where Solr should write logs to. Absolute or relative to solr start dir
	REM set SOLR_LOGS_DIR=logs

	REM Enables log rotation before starting Solr. Setting SOLR_LOG_PRESTART_ROTATION=true will let Solr take care of pre
	REM start rotation of logs. This is false by default as log4j2 handles this for us. If you choose to use another log
	REM framework that cannot do startup rotation, you may want to enable this to let Solr rotate logs on startup.
	REM set SOLR_LOG_PRESTART_ROTATION=false

	REM Enables jetty request log for all requests
	REM set SOLR_REQUESTLOG_ENABLED=false

	REM Set the host interface to listen on. Jetty will listen on all interfaces (0.0.0.0) by default.
	REM This must be an IPv4 ("a.b.c.d") or bracketed IPv6 ("[x::y]") address, not a hostname!
	REM set SOLR_JETTY_HOST=0.0.0.0

	REM Sets the port Solr binds to, default is 8983
	REM set SOLR_PORT=8983

	REM Restrict access to solr by IP address.
	REM Specify a comma-separated list of addresses or networks, for example:
	REM 127.0.0.1, 192.168.0.0/24, [::1], [2000:123:4:5::]/64
	REM set SOLR_IP_WHITELIST=

	REM Block access to solr from specific IP addresses.
	REM Specify a comma-separated list of addresses or networks, for example:
	REM 127.0.0.1, 192.168.0.0/24, [::1], [2000:123:4:5::]/64
	REM set SOLR_IP_BLACKLIST=

	REM Enables HTTPS. It is implictly true if you set SOLR_SSL_KEY_STORE. Use this config
	REM to enable https module with custom jetty configuration.
	REM set SOLR_SSL_ENABLED=true
	REM Uncomment to set SSL-related system properties
	REM Be sure to update the paths to the correct keystore for your environment
	REM set SOLR_SSL_KEY_STORE=etc/solr-ssl.keystore.p12
	REM set SOLR_SSL_KEY_STORE_PASSWORD=secret
	REM set SOLR_SSL_TRUST_STORE=etc/solr-ssl.keystore.p12
	REM set SOLR_SSL_TRUST_STORE_PASSWORD=secret
	REM Require clients to authenticate
	REM set SOLR_SSL_NEED_CLIENT_AUTH=false
	REM Enable clients to authenticate (but not require)
	REM set SOLR_SSL_WANT_CLIENT_AUTH=false
	REM Verify client hostname during SSL handshake
	REM set SOLR_SSL_CLIENT_HOSTNAME_VERIFICATION=false
	REM SSL Certificates contain host/ip "peer name" information that is validated by default. Setting
	REM this to false can be useful to disable these checks when re-using a certificate on many hosts
	REM set SOLR_SSL_CHECK_PEER_NAME=true
	REM Override Key/Trust Store types if necessary
	REM set SOLR_SSL_KEY_STORE_TYPE=PKCS12
	REM set SOLR_SSL_TRUST_STORE_TYPE=PKCS12

	REM Uncomment if you want to override previously defined SSL values for HTTP client
	REM otherwise keep them commented and the above values will automatically be set for HTTP clients
	REM set SOLR_SSL_CLIENT_KEY_STORE=
	REM set SOLR_SSL_CLIENT_KEY_STORE_PASSWORD=
	REM set SOLR_SSL_CLIENT_TRUST_STORE=
	REM set SOLR_SSL_CLIENT_TRUST_STORE_PASSWORD=
	REM set SOLR_SSL_CLIENT_KEY_STORE_TYPE=
	REM set SOLR_SSL_CLIENT_TRUST_STORE_TYPE=

	REM Sets path of Hadoop credential provider (hadoop.security.credential.provider.path property) and
	REM enables usage of credential store.
	REM Credential provider should store the following keys:
	REM * solr.jetty.keystore.password
	REM * solr.jetty.truststore.password
	REM Set the two below if you want to set specific store passwords for HTTP client
	REM * javax.net.ssl.keyStorePassword
	REM * javax.net.ssl.trustStorePassword
	REM More info: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-common/CredentialProviderAPI.html
	REM set SOLR_HADOOP_CREDENTIAL_PROVIDER_PATH=localjceks://file/home/solr/hadoop-credential-provider.jceks
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.ssl.credential.provider.chain=hadoop

	REM Settings for authentication
	REM Please configure only one of SOLR_AUTHENTICATION_CLIENT_BUILDER or SOLR_AUTH_TYPE parameters
	REM set SOLR_AUTHENTICATION_CLIENT_BUILDER=org.apache.solr.client.solrj.impl.PreemptiveBasicAuthClientBuilderFactory
	REM set SOLR_AUTH_TYPE=basic
	REM set SOLR_AUTHENTICATION_OPTS=-Dbasicauth=solr:SolrRocks

	REM Settings for ZK ACL
	REM set SOLR_ZK_CREDS_AND_ACLS=-DzkACLProvider=org.apache.solr.common.cloud.VMParamsAllAndReadonlyDigestZkACLProvider ^
	REM -DzkCredentialsProvider=org.apache.solr.common.cloud.VMParamsSingleSetCredentialsDigestZkCredentialsProvider ^
	REM -DzkDigestUsername=admin-user -DzkDigestPassword=CHANGEME-ADMIN-PASSWORD ^
	REM -DzkDigestReadonlyUsername=readonly-user -DzkDigestReadonlyPassword=CHANGEME-READONLY-PASSWORD
	REM set SOLR_OPTS=%SOLR_OPTS% %SOLR_ZK_CREDS_AND_ACLS%

	REM Jetty GZIP module enabled by default
	REM set SOLR_GZIP_ENABLED=true

	REM When running Solr in non-cloud mode and if planning to do distributed search (using the "shards" parameter), the
	REM list of hosts needs to be whitelisted or Solr will forbid the request. The whitelist can be configured in solr.xml,
	REM or if you are using the OOTB solr.xml, can be specified using the system property "solr.shardsWhitelist". Alternatively
	REM host checking can be disabled by using the system property "solr.disable.shardsWhitelist"
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.shardsWhitelist=http://localhost:8983,http://localhost:8984

	REM For a visual indication in the Admin UI of what type of environment this cluster is, configure
	REM a -Dsolr.environment property below. Valid values are prod, stage, test, dev, with an optional
	REM label or color, e.g. -Dsolr.environment=test,label=Functional+test,color=brown
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.environment=prod

	REM Specifies the path to a common library directory that will be shared across all cores.
	REM Any JAR files in this directory will be added to the search path for Solr plugins.
	REM If the specified path is not absolute, it will be relative to `%SOLR_HOME%`.
	REM set SOLR_OPTS=%SOLR_OPTS% -Dsolr.sharedLib=/path/to/lib

	REM Runs solr in a java security manager sandbox. This can protect against some attacks.
	REM Runtime properties are passed to the security policy file (server\etc\security.policy)
	REM You can also tweak via standard JDK files such as ~\.java.policy, see https://s.apache.org/java8policy
	REM This is experimental! It may not work at all with Hadoop/HDFS features.
	REM set SOLR_SECURITY_MANAGER_ENABLED=false

	REM Solr is by default allowed to read and write data from/to SOLR_HOME and a few other well defined locations
	REM Sometimes it may be necessary to place a core or a backup on a different location or a different disk
	REM This parameter lets you specify file system path(s) to explicitly allow. The special value of '*' will allow any path
	REM SOLR_OPTS="%SOLR_OPTS% -Dsolr.allowPaths=D:\,E:\other\path"