Question

我正在尝试使Solr 6.6与G1GC垃圾收集器一起使用。根据文档，设置GC_TUNE属性就足够了。但它没有帮助。我已经设置

GC_TUNE="-XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+AggressiveOpts"

下一条运行命令并打印出详细输出

$SOLR_INSTALL_DIR/bin/solr start -cloud -z $ZK_HOST -h $SOLR_HOST -m 6g -V

Starting Solr using the following settings:
    JAVA            = java
    SOLR_SERVER_DIR = /opt/solr/server
    SOLR_HOME       = /opt/solr/server/solr
    SOLR_HOST       = REDACTED
    SOLR_PORT       = 8983
    STOP_PORT       = 7983
    JAVA_MEM_OPTS   = -Xms6g -Xmx6g
    GC_TUNE         = -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:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=50 -XX:CMSMaxAbortablePrecleanTime=6000 -XX:+CMSParallelRemarkEnabled -XX:+ParallelRefProcEnabled -XX:-OmitStackTraceInFastThrow
    GC_LOG_OPTS     = -verbose:gc -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintTenuringDistribution -XX:+PrintGCApplicationStoppedTime -Xloggc:/opt/solr/server/logs/solr_gc.log -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=9 -XX:GCLogFileSize=20M
    SOLR_TIMEZONE   = UTC
    CLOUD_MODE_OPTS = -DzkClientTimeout=15000 -DzkHost=REDACTED:2181
    SOLR_OPTS       = -Xss256k

我不明白为什么GC_TUNE与设置的不同。

未在启动脚本中设置Solr 6 GC_TUNE变量

0 个答案: