this is my question: when I get an error of ---Error parsing HTTP request header-- the reason of this error i already know. the header is too large. by setting maxHttpHeaderSize to a bigger size can solve this error, but this is not my point. the total message of this error is : Info: Error parsing HTTP request header Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. java.lang.IllegalArgumentException: Request header is too large at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:530) at org.apache.coyote.http11.InternalInputBuffer.fill(InternalInputBuffer.java:519) at org.apache.coyote.http11.InternalInputBuffer.parseHeader(InternalInputBuffer.java:407) at org.apache.coyote.http11.InternalInputBuffer.parseHeaders(InternalInputBuffer.java:281) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1066) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:317) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)
this bold font-Note: further occurrences of HTTP header parsing errors will be logged at DEBUG level. is control by system properties: org.apache.juli.logging.UserDataHelper.CONFIG=INFO_THEN_DEBUG and INFO_THEN_DEBUG is the default value. when i change the value INFO_THEN_DEBUG to DEBUG_ALL, the console will not show any log error again, but the error is here. i know the reason is my default root log level is INFO config in my logging.properites. but in my opinion， DEBUG_ALL is lower than INFO_THEN_DEBUG, when i change to a lower value, i can't get any error log again. i dont know whether this is a bug? if not, i want to know why is this logic? thanks! My environment: win 10 eclipse tomcat-embed-core:7.0.93 tomcat-embed-logging-juli:7.0.93 logging.properties: handlers = java.util.logging.ConsoleHandler java.util.logging.ConsoleHandler.level = FINEST java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter
