you mean upgrade to log4j2? but all my projects, including spark, hadoop, kafka, they all use log4j1.x
2015-08-14 13:25 GMT+08:00 Ralph Goers <ralph.go...@dslextreme.com>: > Please see - > https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces > < > https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces > >. > > Ralph > > > On Aug 13, 2015, at 10:08 PM, Jinhong Lu <lujinho...@gmail.com> wrote: > > > > I met this exception when using syslogappender. > > > > my log4j version is 1.2.16. > > > > Any idea? thanks. > > > > > > > > > > java.lang.NoSuchFieldError: errorHandler > > at > org.apache.log4j.net.SyslogAppender.setSyslogHost(SyslogAppender.java:391) > > ~[log4j-1.2.16.jar:na] > > at > com.netease.sytopology.util.MySysLogger.<init>(MySysLogger.java:39) > > ~[stormjar.jar:na] > > at > com.netease.sytopology.util.MySysLogger.getInstance(MySysLogger.java:28) > > ~[stormjar.jar:na] > > at > com.netease.sytopology.bolt.FilterFunction.prepare(FilterFunction.java:65) > > ~[stormjar.jar:na] > > at > storm.trident.planner.processor.EachProcessor.prepare(EachProcessor.java:54) > > ~[storm-core-0.9.4.jar:0.9.4] > > at > storm.trident.planner.SubtopologyBolt.prepare(SubtopologyBolt.java:121) > > ~[storm-core-0.9.4.jar:0.9.4] > > at > storm.trident.topology.TridentBoltExecutor.prepare(TridentBoltExecutor.java:231) > > ~[storm-core-0.9.4.jar:0.9.4] > > at > backtype.storm.daemon.executor$fn__4722$fn__4734.invoke(executor.clj:692) > > ~[storm-core-0.9.4.jar:0.9.4] > > at backtype.storm.util$async_loop$fn__458.invoke(util.clj:461) > > ~[storm-core-0.9.4.jar:0.9.4] > > at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na] > > at java.lang.Thread.run(Thread.java:745) [na:1.7.0_67] > > > > > > And here is my code: > > > > > > import org.apache.log4j.Level; > > > > import org.apache.log4j.Logger; > > > > import org.apache.log4j.PatternLayout; > > > > import org.apache.log4j.helpers.OnlyOnceErrorHandler; > > > > import org.apache.log4j.net.SyslogAppender; > > > > import org.apache.log4j.varia.FallbackErrorHandler; > > > > > > public class MySysLogger { > > > > //以下参数均可根据需要放到配置文件中。 > > > > //默认日志级别 > > > > private static Level level = Level.INFO; > > > > //日志接收服务器 > > > > private static String syslogHost = "172.16.1.18"; > > > > //设置facility > > > > private static String facility = "local7"; > > > > private static String loggerName = ""; > > > > > > public static void setLoggerName(String loggerName2) { > > > > MySysLogger.loggerName = loggerName2; > > > > } > > > > > > private static Logger LOG = null; > > > > > > public static synchronized Logger getInstance() { > > > > if (LOG == null) { > > > > new MySysLogger(loggerName); > > > > } > > > > return LOG; > > > > } > > > > > > private MySysLogger(String loggerName) { > > > > > > LOG = Logger.getRootLogger(); > > > > LOG.setLevel(level); > > > > SyslogAppender appender = new SyslogAppender(); > > > > appender.setErrorHandler(new FallbackErrorHandler()); > > > > > > appender.setSyslogHost(syslogHost); > > > > appender.setLayout(new PatternLayout( > > > > "%r " + loggerName +" [%t] %-5p %C%x - %m")); > > > > appender.setHeader(true); > > > > appender.setFacility(facility); > > > > LOG.addAppender(appender); > > > > } > > > > > > } > >
