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Add configurable ZK memory limits

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This commit is contained in:
Joshua Boniface
2020-12-21 00:05:15 -05:00
parent 98e3e39570
commit ac071f4bf0
2 changed files with 9 additions and 4 deletions
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11
group_vars/default/pvc.yml
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@@ -72,11 +72,16 @@ pvc_asn: "65500"
pvc_routers:
- "192.168.100.1"
# Ceph OSD tuning
# > Uncomment in low-memory situation (nodes with <32GB RAM).
# > These options are *only* applied at cluster bootstrap and cannot be changed later.
# Memory tuning
# > Uncomment these options in low-memory situations (nodes with <32GB RAM).
# OSD memory limit - 939524096 (~900MB) is the lowest possible value; default is 4GB.
# > This option is *only* applied at cluster bootstrap and cannot be changed later
# here, only by editing the `files/ceph/<cluster>/ceph.conf` file directly.
#pvc_osd_memory_limit: 939524096
# Zookeeper heap memory limit, sets Xms and Xmx values to the Java process.
#pvc_zookeeper_heap_limit: 32M
# Zookeeper stack memory limit, sets Xss value to the Java process.
#pvc_zookeeper_stack_limit: 32M
# Node list
# > Every node configured with this playbook must be specified in this list.

2
roles/pvc/templates/zookeeper/environment.j2
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@@ -13,6 +13,6 @@ JMXLOCALONLY=false
# cluster is only ~5.2MB of raw JSON data and beyond 12x that seems like a cluster too large for PVC.
# Xms/Xmx=128M
# Reduce the Java memory size to minimize RAM consumption by Zookeeper.
JAVA_OPTS="-Djava.net.preferIPv4Stack=True -Djute.maxbuffer=67108864 -Xms128M -Xmx128M"
JAVA_OPTS="-Djava.net.preferIPv4Stack=True -Djute.maxbuffer=67108864 -Xms{{ pvc_zookeeper_heap_limit }} -Xmx{{ pvc_zookeeper_heap_limit }} -Xss{{ pvc_zookeeper_stack_limit }}"
JAVA=/usr/bin/java
CLASSPATH="/etc/zookeeper/conf:/usr/share/java/jline.jar:/usr/share/java/log4j-1.2.jar:/usr/share/java/xercesImpl.jar:/usr/share/java/xmlParserAPIs.jar:/usr/share/java/netty.jar:/usr/share/java/slf4j-api.jar:/usr/share/java/slf4j-log4j12.jar:/usr/share/java/zookeeper.jar"