We have been getting some crashes in Tomcat 8.5.43 lately.
The environment is:
* JDK 1.8.0_202
* Windows Server 2012 R2
The logs shows a tcnative exception.
Crash Log:
Current thread JavaThread "https-openssl-apr-8081-exec-298" daemon
_thread_in_native
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
J 15034 org.apache.tomcat.jni.Socket.sendb(JLjava/nio/ByteBuffer;II)I (0
bytes) @ 0x0000000002962ddf [0x0000000002962d80+0x5f]
J 29164 C2
org.apache.tomcat.util.net.AprEndpoint$AprSocketWrapper.doWrite(ZLjava/nio/ByteBuffer;)V
(242 bytes) @ 0x0000000006d6933c [0x0000000006d68b20+0x81c]
J 27479 C2 org.apache.tomcat.util.net.SocketWrapperBase.flush(Z)Z (20 bytes) @
0x00000000053f6144 [0x00000000053f60a0+0xa4]
J 24666 C2
org.apache.coyote.http2.Http2OutputBuffer.doWrite(Ljava/nio/ByteBuffer;)I (28
bytes) @ 0x0000000006b51b74 [0x0000000006b51660+0x514]
J 24689 C2 org.apache.catalina.connector.OutputBuffer.writeBytes([BII)V (38
bytes) @ 0x00000000031c09f8 [0x00000000031c04c0+0x538]
J 27348 C2 org.apache.catalina.connector.CoyoteOutputStream.write([BII)V (26
bytes) @ 0x00000000071d51a8 [0x00000000071d5120+0x88]
Tomcat logs:
org.apache.catalina.connector.ClientAbortException:
org.apache.coyote.CloseNowException: Connection [214], Stream [279], This
stream is not writable
I was able to cause a crash in my development environment but I do not think
that is the same error, I got the same error with version 9.0.24
Sample app[1]
Crash logs:
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j org.apache.tomcat.jni.Address.get(IJ)J+0
j
org.apache.tomcat.util.net.AprEndpoint$AprSocketWrapper.populateRemoteAddr()V+21
J 4645 C1
org.apache.coyote.AbstractProcessor.action(Lorg/apache/coyote/ActionCode;Ljava/lang/Object;)V
(1019 bytes) @ 0x00000000024a4774 [0x000000000249f700+0x5074]
j
org.apache.coyote.Request.action(Lorg/apache/coyote/ActionCode;Ljava/lang/Object;)V+31
j org.apache.catalina.connector.Request.getRemoteAddr()Ljava/lang/String;+18
j
org.apache.catalina.connector.RequestFacade.getRemoteAddr()Ljava/lang/String;+27
j
org.springframework.web.servlet.FrameworkServlet.publishRequestHandledEvent(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;JLjava/lang/Throwable;)V+37
Dev environment:
* Tomcat 8.5.43
* Windows Server 2012 R2
* Windows 10.0.18362.295
The keystore was created with:
keytool -genkey -keyalg RSA -alias tomcat -keystore tomcat.jks -storepass
tomcat -validity 360 -keysize 2048
The HTTPS connector is configured with:
<Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol"
maxThreads="150" SSLEnabled="true" >
<UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />
<SSLHostConfig>
<Certificate certificateKeystoreFile="conf/tomcat.jks"
certificateKeystorePassword="tomcat" certificateKeyPassword="tomcat"
type="RSA" />
</SSLHostConfig>
</Connector>
I am running the tests with Gatling 3.2.0[3] configured with requestTimeout =
60 so it causes client disconnections.
Sample test[2]
The issue could be fixed in the app code but I think that is also a Tomcat bug.
Any tipos or suggestions?
[1][
https://github.com/lalo-mx/app-tomcat-sample/blob/master/src/main/java/sample/AppController.java]
[2][ https://gist.github.com/lalo-mx/0a690290f6aac5017f15a65fc100eaa2]
[3][ https://gatling.io/open-source]
Eduardo Quintanilla
Software Developer
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