Installs and deploys a Zookeeper managed Solr cluster.
Tested Platforms and [zookeeper]/[solr] versions
| Platform | 3.6.1 / 6.2.0 | 3.6.1 / 8.6.2 |
|---|---|---|
| centos/7 | ☑ | ☑ |
Recommended to run molecule in virtualenv.
Create a virtualenv with:
`virtualenv --python=python3 <venv_name>`
Note: Recommended to create virtualenv outside repos root, eg.
~/.venvs/Otherwise, linter will check virtualenv files and throw misleading errors
Once venv is activated, install requirements with:
`pip install -r requirements.txt`
Role can then be tested with molecule converge
Zookeeper version to install:
zk_version: 3.6.1
Path tar will be downloaded to
zk_tar_dir: /opt/src
Zookeeper install dir:
zk_dir: "/opt/zookeeper-{{ zk_version }}"
Zookeeper home:
zk_data_dir: /var/lib/zookeeper
Zookeeper log path:
zk_log_dir: /var/log/zookeeper
Mirrors role will attempt to download zookeeper from
zk_mirrors:
- "https://apache.osuosl.org/zookeeper/"
- "https://archive.apache.org/dist/zookeeper/"
Zookeeper tar checksum, algorithm, and remote path dynamically configured by default:
zk_checksum: ""
zk_checksum_algo: ""
zk_remote_path: ""
User that runs zookeeper and owns corresponding files and directories:
zk_user: zookeeper
Starts and/or restarts zookeeper service when true. Just installs zookeeper when false:
zk_deploy: true
Controls zookeeper dynamic config overwrite:
zk_reconfigure: false
Dictionary of key=>value pairs that populates "{{ zk_dir }}/conf/zoo.cfg":
zk_conf_params:
tickTime: 2000
initLimit: 10
syncLimit: 5
dataDir: "{{ zk_data_dir }}"
snapCount: 10000
leaderServes: yes
autopurge.snapRetainCount: 3
autopurge.purgeInterval: 0
4lw.commands.whitelist: "stat, ruok, conf, isro, wchc, mntr"
reconfigEnabled: true
dynamicConfigFile: "{{ zk_dir }}/conf/zoo.cfg.dynamic"
Dictionary of key=>value pairs that populate zookeeper systemd unit:
zk_systemd_params:
unit:
Description: "Zookeeper"
After: network.target
Wants: network.target
service:
Type: simple
User: "{{ zk_user }}"
Group: "{{ zk_user }}"
ExecStart: "/opt/zookeeper/bin/zkServer.sh start-foreground"
Restart: always
RestartSec: 3
TimeoutSec: 300
install:
WantedBy: multi-user.target
Dictionary of key=>value pairs that populate log4j config:
zk_log_params:
zk:
root.logger: "INFO,CONSOLE,ROLLINGFILE"
console.threshold: "INFO"
log.dir: "/var/log/zookeeper"
log.file: "zookeeper.log"
log.threshold: "INFO"
log.maxfilesize: "256MB"
log.maxbackupindex: "20"
log4j:
rootLogger: "${zookeeper.root.logger}"
appender.CONSOLE: "org.apache.log4j.ConsoleAppender"
appender.CONSOLE.Threshold: "${zookeeper.console.threshold}"
appender.CONSOLE.layout: "org.apache.log4j.PatternLayout"
appender.CONSOLE.layout.ConversionPattern: "%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n"
appender.ROLLINGFILE: "org.apache.log4j.RollingFileAppender"
appender.ROLLINGFILE.Threshold: "${zookeeper.log.threshold}"
appender.ROLLINGFILE.File: "${zookeeper.log.dir}/${zookeeper.log.file}"
appender.ROLLINGFILE.MaxFileSize: "${zookeeper.log.maxfilesize}"
appender.ROLLINGFILE.MaxBackupIndex: "${zookeeper.log.maxbackupindex}"
appender.ROLLINGFILE.layout: "org.apache.log4j.PatternLayout"
appender.ROLLINGFILE.layout.ConversionPattern: "%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L] - %m%n"
appender.TRACEFILE: "org.apache.log4j.FileAppender"
appender.TRACEFILE.Threshold: "TRACE"
appender.TRACEFILE.File: "${zookeeper.tracelog.dir}/${zookeeper.tracelog.file}"
appender.TRACEFILE.layout: "org.apache.log4j.PatternLayout"
appender.TRACEFILE.layout.ConversionPattern: "%d{ISO8601} [myid:%X{myid}] - %-5p [%t:%C{1}@%L][%x] - %m%n"
Array of dictionaries of zookeeper hosts in cluster with connection information. Defaults empty:
zk_hosts:
- host: "zk-solr1"
addr: "10.0.1.111"
id: 1
leader_port: 2888
election_port: 3888
client_port: 2181
- host: "zk-solr2"
addr: "10.0.1.112"
id: 2
leader_port: 2888
election_port: 3888
client_port: 2181
- host: "zk-solr3"
addr: "10.0.1.113"
id: 3
leader_port: 2888
election_port: 3888
client_port: 2181
Solr version to install:
solr_version: "6.2.0"
Path tar will be downloaded to:
solr_tar_dir: /opt/src
Solr install dir:
solr_dir: "/opt/solr-{{ solr_version }}"
Solr home:
solr_data_dir: /var/solr
Mirrors role will attempt to download solr from:
solr_mirrors:
- "https://apache.osuosl.org/lucene/solr/"
- "https://archive.apache.org/dist/lucene/solr/"
Solr tar checksum and algorithm dynamically configured by default:
solr_checksum: ""
solr_checksum_algo: ""
User that runs solr and owns corresponding files and directories
solr_user: solr
Starts and/or restarts solr service when true. Just installs solr when false:
solr_deploy: true
Dictionary of key=>value pairs that populates "{{ solr_dir }}"/bin/solr.in.sh:
solr_params:
SOLR_HOST: "{% for h in zk_hosts %}{% if h.host is defined %}{% if h.host == inventory_hostname %}{{ h.addr }}{% endif %}{% endif %}{% endfor %}"
SOLR_JAVA_HOME: /usr/lib/jvm/jre-1.8.0
SOLR_JAVA_MEM: "{% if ansible_facts['memory_mb']['swap']['total'] > ansible_facts['memory_mb']['real']['total'] %}\
\"-Xms{{ (ansible_facts['memory_mb']['real']['total'] * 8) // 20 }}m -Xmx{{ (ansible_facts['memory_mb']['real']['total'] * 8) // 10 }}m\"\
{% else %}\
\"-Xms{{ (ansible_facts['memory_mb']['real']['total'] * 5) // 20 }}m -Xmx{{ (ansible_facts['memory_mb']['real']['total'] * 5) // 10 }}m\"\
{% endif %}"
SOLR_PID_DIR: "{{ solr_data_dir }}"
SOLR_HOME: "{{ solr_data_dir }}/data"
LOG4J_PROPS: "{{ solr_data_dir }}/log4j.properties"
SOLR_LOGS_DIR: "{{ solr_data_dir }}/logs"
SOLR_PORT: 8983
Array of options that populates GC_TUNE in solr.in.sh:
gc_tune:
- NewRatio=3
- SurvivorRatio=4
- TargetSurvivorRatio=90
- MaxTenuringThreshold=8
- +UseConcMarkSweepGC
- +UseParNewGC
- ConcGCThreads=4
- ParallelGCThreads=4
- +CMSScavengeBeforeRemark
- PretenureSizeThreshold=64m
- +UseCMSInitiatingOccupancyOnly
- CMSInitiatingOccupancyFraction=50
- CMSMaxAbortablePrecleanTime=6000
- +CMSParallelRemarkEnabled
- +ParallelRefProcEnabled
Array of options to pass to SOLR_OPTS in solr.in.sh':
solr_opts:
- "-Xss256k"
- "-Djetty.host=$SOLR_HOST"
Dictionary of key=>value pairs that populate solr systemd unit:
solr_systemd_params:
unit:
Description: Apache SOLR
After: syslog.target network.target remote-fs.target nss-lookup.target
service:
PIDFile: "{{ solr_data_dir }}/solr-8983.pid"
ExecStart: "/opt/solr/bin/solr start -noprompt"
ExecStop: "/opt/solr/bin/solr stop -noprompt"
# ExecStatus: "/opt/solr/bin/solr status -noprompt"
ExecReload: "/bin/kill -s HUP $MAINPID"
Environment: "SOLR_INCLUDE=/opt/solr/bin/solr.in.sh"
User: "solr"
Group: "solr"
PrivateTmp: "true"
install:
WantedBy: multi-user.target
"geerlingguy.java" role must be installed
- hosts: zk-solr-servers
roles:
- tag1consulting.zk-solr
zk_hosts:
- host: "zk-solr1"
addr: "10.0.1.111"
id: 1
leader_port: 2888
election_port: 3888
client_port: 2181
- host: "zk-solr2"
addr: "10.0.1.112"
id: 2
leader_port: 2888
election_port: 3888
client_port: 2181
- host: "zk-solr3"
addr: "10.0.1.113"
id: 3
leader_port: 2888
election_port: 3888
client_port: 2181BSD
This role was created in 2020 by Kerry Vance, for Tag1 Consulting