Hi, Can you provide some information on how you use the cluster? How many reads/writes/updates per second? Also CPU / RAM spec of cluster nodes?
We observed full GC / CPU load / OOM killer when loading big amount of data (15 mln records, data streamer + allowOverwrite=true). We've seen 200-400k updates per sec on JMX metrics, but load up to 10 on nodes, iowait to 30%. Our cluster is 3 x 4CPU, 16GB RAM (already upgradingto 8CPU, 32GB RAM). Ignite 2.10 Regards, Piotr On 2021/09/02 08:36:07, Ibrahim Altun <ibrahim.al...@segmentify.com> wrote: > After upgrading from 2.7.1 version to 2.10.0 version ignite nodes facing > huge full GC operations after 24-36 hours after node start. > > We try to increase heap size but no luck, here is the start configuration > for nodes; > > JVM_OPTS="$JVM_OPTS -Xms12g -Xmx12g -server > -javaagent:/etc/prometheus/jmx_prometheus_javaagent-0.14.0.jar=8090:/etc/prometheus/jmx.yml > -Dcom.sun.management.jmxremote > -Dcom.sun.management.jmxremote.authenticate=false > -Dcom.sun.management.jmxremote.port=49165 > -Dcom.sun.management.jmxremote.host=localhost > -XX:MaxMetaspaceSize=256m -XX:MaxDirectMemorySize=1g > -DIGNITE_SKIP_CONFIGURATION_CONSISTENCY_CHECK=true > -DIGNITE_WAL_MMAP=true -DIGNITE_BPLUS_TREE_LOCK_RETRIES=100000 > -Djava.net.preferIPv4Stack=true" > > JVM_OPTS="$JVM_OPTS -XX:+AlwaysPreTouch -XX:+UseG1GC > -XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC > -XX:+UseStringDeduplication -Xloggc:/var/log/apache-ignite/gc.log > -XX:+PrintGCDetails -XX:+PrintGCDateStamps > -XX:+PrintTenuringDistribution -XX:+PrintGCCause > -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 > -XX:GCLogFileSize=100M" > > here is the 80 hours of GC analyize report: > https://gceasy.io/my-gc-report.jsp?p=c2hhcmVkLzIwMjEvMDgvMzEvLS1nYy5sb2cuMC5jdXJyZW50LnppcC0tNS01MS0yOQ==&channel=WEB > > do we need more heap size or is there a BUG that we need to be aware? > > here is the node configuration: > > <?xml version="1.0" encoding="UTF-8"?> > <beans xmlns="http://www.springframework.org/schema/beans"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation=" > http://www.springframework.org/schema/beans > http://www.springframework.org/schema/beans/spring-beans.xsd";> > <bean id="ignite.cfg" > class="org.apache.ignite.configuration.IgniteConfiguration"> > <property name="gridLogger"> > <bean class="org.apache.ignite.logger.log4j2.Log4J2Logger"> > <constructor-arg type="java.lang.String" > value="/etc/apache-ignite/ignite-log4j2.xml"/> > </bean> > </property> > <property name="communicationSpi"> > <bean > class="org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi"> > <property name="usePairedConnections" value="true"/> > </bean> > </property> > <property name="failureDetectionTimeout" value="60000"/> > <property name="systemThreadPoolSize" value="128"/> > <property name="publicThreadPoolSize" value="128"/> > <property name="queryThreadPoolSize" value="128"/> > <property name="serviceThreadPoolSize" value="128"/> > <property name="stripedPoolSize" value="128"/> > <property name="dataStreamerThreadPoolSize" value="4"/> > <property name="rebalanceThreadPoolSize" value="16"/> > > <!-- Explicitly enable peer class loading. --> > <property name="peerClassLoadingEnabled" value="true"/> > > <!-- Enable deploymentSpi, > /usr/share/apache-ignite/libs/segmentify directory will be checked > every 5 seconds for changed files--> > <property name="deploymentSpi"> > <bean class="org.apache.ignite.spi.deployment.uri.UriDeploymentSpi"> > <property name="temporaryDirectoryPath" > value="/tmp/temp_ignite_libs"/> > <property name="uriList"> > <list> > > <value>file://freq=5000@localhost/usr/share/apache-ignite/libs/segmentify/</value> > </list> > </property> > </bean> > </property> > > <property name="cacheConfiguration"> > <list> > <!-- Partitioned cache example configuration (Atomic mode). --> > <bean class="org.apache.ignite.configuration.CacheConfiguration"> > <property name="name" value="default"/> > <property name="atomicityMode" value="ATOMIC"/> > <property name="backups" value="1"/> > </bean> > </list> > </property> > > <!-- Explicitly configure TCP discovery SPI to provide list of > initial nodes. --> > <property name="discoverySpi"> > <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi"> > <property name="networkTimeout" value="60000"/> > <property name="ipFinder"> > <bean > class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder"> > <property name="addresses"> > <list> > <!-- THERE ARE 10 NODES --> > </list> > </property> > </bean> > </property> > </bean> > </property> > > <!-- Enabling Apache Ignite native persistence. --> > <property name="dataStorageConfiguration"> > <bean > class="org.apache.ignite.configuration.DataStorageConfiguration"> > <property name="defaultDataRegionConfiguration"> > <bean > class="org.apache.ignite.configuration.DataRegionConfiguration"> > <property name="persistenceEnabled" value="true"/> > <property name="checkpointPageBufferSize" > value="#{ 2L * 1024 * 1024 * 1024}"/> > <property name="maxSize" value="#{ 40L * 1024 * > 1024 * 1024 }"/> > </bean> > </property> > <property name="storagePath" value="/srv/ignite/persist"/> > <property name="walPath" value="/srv/ignite/wal"/> > <property name="walArchivePath" value="/srv/ignite/wal"/> > <property name="walMode" value="LOG_ONLY"/> > <property name="walSegmentSize" value="#{ 256L * 1024 * 1024 }"/> > <property name="walFlushFrequency" value="5000"/> > <property name="maxWalArchiveSize" value="#{ 512L * 1024 * 1024 > }"/> > <property name="writeThrottlingEnabled" value="true"/> > <property name="checkpointFrequency" value="300000"/> > <property name="checkpointWriteOrder" value="SEQUENTIAL" /> > </bean> > </property> > </bean> > > > -- > <https://www.segmentify.com/>İbrahim Halil AltunSenior Software Engineer+90 > 536 3327510 • segmentify.com → <https://www.segmentify.com/>UK • Germany • > Turkey <https://www.segmentify.com/ecommerce-growth-show> > <https://www.g2.com/products/segmentify/reviews> >
