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Keith Turner commented on ACCUMULO-4041: ---------------------------------------- Had a similar issue with {{Property.getDefaultValue()}} resolved those once and cached at [DefaultConfiguration.java line 31|https://github.com/apache/accumulo/blob/2e9643dcc406df3f1a502f9eaf543d1d9bdee560/core/src/main/java/org/apache/accumulo/core/conf/DefaultConfiguration.java#L31]. Could do something similar here, build a hashset of the sensitive props once. > 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 > > 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)