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From Weibin Yao <nbubi...@gmail.com>
Subject Invalid message recieved with signature
Date Mon, 01 Nov 2010 08:35:02 GMT
Hi tomcat developers,
    Our tomcat_5.5.20 servers encounter a lot of error logs:

/2010-11-1 14:58:10 org.apache.coyote.ajp.AjpMessage processHeader
▒▒▒▒: Invalid message recieved with signature 13410
2010-11-1 14:58:10 
org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler process
▒▒▒▒: Error reading request, ignored
java.lang.StringIndexOutOfBoundsException: String index out of range: 30076
        at java.lang.String.checkBounds(String.java:402)
        at java.lang.String.<init>(String.java:443)
        at 
org.apache.tomcat.util.buf.ByteChunk.toStringInternal(ByteChunk.java:498)
        at 
org.apache.tomcat.util.buf.StringCache.toString(StringCache.java:310)
        at org.apache.tomcat.util.buf.ByteChunk.toString(ByteChunk.java:491)
        at 
org.apache.tomcat.util.buf.MessageBytes.toString(MessageBytes.java:209)
        at 
org.apache.coyote.RequestInfo.updateCounters(RequestInfo.java:146)
        at org.apache.coyote.Request.updateCounters(Request.java:488)
        at 
org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:450)
        at 
org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:452)
        at 
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
        at java.lang.Thread.run(Thread.java:619)
/

    We use this servers as upload servers, most of the AJP requests are 
POST method. This a debug log:

/2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage processHeader
▒▒▒▒: Invalid message recieved with signature 11565
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: In: : [B@cc5b10 4/11569
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 2d 2d 2d 2d 02 04 00 08 48 54 54 50 2f 31 2e 30  | ----....HTTP/1.0
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 00 00 0a 2f 75 70 6c 6f 61 64 2e 64 6f 00 00 0c  | .../upload.do...
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 31 38 33 2e 31 37 2e 38 2e 32 30 38 00 ff ff 00  | 183.17.8.208.??.
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 14 75 70 6c 6f 61 64 2e 70 68 6f 74 6f 2e 31 36  | .upload.photo.16
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 33 2e 63 6f 6d 00 00 50 00 00 0d a0 0b 00 14 75  | 3.com..P...?...u
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 70 6c 6f 61 64 2e 70 68 6f 74 6f 2e 31 36 33 2e  | pload.photo.163.
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 63 6f 6d 00 00 0f 58 2d 46 6f 72 77 61 72 64 65  | com...X-Forwarde
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 64 2d 46 6f 72 00 00 0c 31 38 33 2e 31 37 2e 38  | d-For...183.17.8
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 2e 32 30 38 00 00 09 58 2d 46 72 6f 6d 2d 49 50  | .208...X-From-IP
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 00 00 0c 31 38 33 2e 31 37 2e 38 2e 32 30 38 00  | ...183.17.8.208.
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 00 0a 58 2d 46 72 6f 6d 2d 49 53 50 00 00 01 32  | ..X-From-ISP...2
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 00 a0 06 00 05 63 6c 6f 73 65 00 a0 0d 00 14 75  | .?...close.?...u
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 70 6c 6f 61 64 2e 70 68 6f 74 6f 2e 31 36 33 2e  | pload.photo.163.
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
▒▒▒: 63 6f 6d 00 a0 01 00 06 74 65 78 74 2f 2a 00 a0  | com.?...text/*.?
2010-11-1 14:19:33 org.apache.coyote.ajp.AjpMessage dump
.../*

    *It seems that the packet's 4 bytes in the beginning are incorrect.
   
    Meanwhile I also captured all the TCP packets with port 8009 by 
tcpdump. I found all the TCP packet's header are all fine which is 
beginning with 0x1234.

    We use apache2.2.3, libapache2-mod-jk_1.2.21 and tomcat_5.5.20.
    The boxes system are 2.6.18-4-686 #1 SMP Mon Mar 26 17:17:36 UTC 
2007 i686 GNU/Linux.

-- 

Weibin Yao


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