Hello,
Last November, my tomcat webapps was suddenly not working. I restarted tomcat
service and it's come back to normal state.
Access log returned 400 for request at the time
Time Taken: 0.000 0 10.176.94.121 - - [20/Nov/2019:17:54:32 +0800] "-" 400 -
Time Taken: 0.000 0 10.176.94.121 - - [20/Nov/2019:17:54:32 +0800] "-" 400 -
Time Taken: 0.000 0 10.176.94.121 - - [20/Nov/2019:18:01:45 +0800] "-" 400 -
Time Taken: 0.000 0 10.176.94.121 - - [20/Nov/2019:18:01:45 +0800] "-" 400 -
>From Catalina log, before the time that I cannot access webapp, there is some
>log as below:
Nov 20, 2019 5:54:32 PM org.apache.coyote.http11.AbstractHttp11Processor process
INFO: Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG
level.
java.lang.IllegalArgumentException: Invalid character found in method name.
HTTP method names must be tokens
at
org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:135)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:996)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Nov 20, 2019 6:01:45 PM org.apache.coyote.http11.AbstractHttp11Processor process
INFO: Error parsing HTTP request header
Note: further occurrences of HTTP header parsing errors will be logged at DEBUG
level.
java.lang.IllegalArgumentException: Invalid character found in method name.
HTTP method names must be tokens
at
org.apache.coyote.http11.InternalInputBuffer.parseRequestLine(InternalInputBuffer.java:135)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:996)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
As there is no others error, I can't know why it was not working. Could you
please help check if those error can made the tomcat to hang and webapps cannot
access?
Thank you very much.
