That is precisely the sort of stuff you get when your application or
newer version is actually worse than your older version, and now you
need to do effort to "persuade" others in joining you when you have not
really improved things ;-).
I was writing some longer email I guess, I will send it later, I guess.
Bye.
Op 14-8-2015 om 10:27 schreef Mikael Ståldal:
Perhaps the Log4j developers should spend some time to persuade other
Apache projects to start using Log4j 2.
On Fri, Aug 14, 2015 at 8:05 AM, Jinhong Lu <[email protected]> wrote:
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 <[email protected]>:
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 <[email protected]> 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);
}
}
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