[ https://issues.apache.org/jira/browse/ACCUMULO-4041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eric Newton updated ACCUMULO-4041: ---------------------------------- Attachment: ACCUMULO-4041-01.patch Proposed fix. > Java reflection eats too much CPU > --------------------------------- > > Key: ACCUMULO-4041 > URL: https://issues.apache.org/jira/browse/ACCUMULO-4041 > Project: Accumulo > Issue Type: Bug > Components: tserver > Affects Versions: 1.7.0 > Environment: Ubuntu 15.10, jdk1.8.0_60 > Reporter: Volth > Attachments: ACCUMULO-4041-01.patch, profiling.jpg > > > This is called so many times that it eats too much CPU, even more than the > snappy compressor: http://i.imgur.com/vqX4pFi.png > Perhaps the annotation data should be copied into regular variables which can > be accessed without reflection. > - org.apache.accumulo.core.client.impl.Tables.getZooCache() > - > org.apache.accumulo.server.client.HdfsZooInstance.getZooKeepersSessionTimeOut() > - org.apache.accumulo.core.conf.AccumuloConfiguration.getTimeInMillis() > - org.apache.accumulo.core.conf.SiteConfiguration.get() > - org.apache.accumulo.core.conf.Property.isSensitive() > - org.apache.accumulo.core.conf.Property.hasAnnotation() > - java.lang.Class.getField() -- This message was sent by Atlassian JIRA (v6.3.4#6332)