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All,
On 2/25/15 9:10 AM, Christopher Schultz wrote:
> We are testing on Tomcat 8.0.17 and we have been getting failures
> that look like this:
>
> SEVERE: Exception while dispatching incoming RPC call
> java.lang.IllegalArgumentException at
> java.nio.Buffer.limit(Buffer.java:275) at
> org.apache.coyote.ajp.AjpNioProcessor.readSocket(AjpNioProcessor.java:179)
>
>
at
> org.apache.coyote.ajp.AjpNioProcessor.read(AjpNioProcessor.java:159)
>
>
at
> org.apache.coyote.ajp.AbstractAjpProcessor.readMessage(AbstractAjpProcessor.java:1067)
>
>
at
> org.apache.coyote.ajp.AbstractAjpProcessor.receive(AbstractAjpProcessor.java:1005)
>
>
at
> org.apache.coyote.ajp.AbstractAjpProcessor.refillReadBuffer(AbstractAjpProcessor.java:1131)
>
> The error message itself comes from GWT's server-side component,
> but the exception indicates the failure is occurring at the Tomcat
> level. We are re-testing with Tomcat 8.0.20, as there have been
> some improvements to NIO, but I wasn't sure if those changes would
> affect the AJP connector.
>
> We will also be testing on Tomcat 7.0.59. Is the NIO implementation
> in Tomat 7 different (stable) enough that this kind of (presumed)
> bug won't exist in that version?
Back in 7.0.59, and we are getting an immediate failure on login to
our application, which is great because it's reproducible. Since the
failure is being reported as part of a failure, it's looping forever
with the same exception, filling the log file. I think this ought to
be enough to see what might be happening. Stack trace follows the
<Connector> configuration. Switching to the BIO connector solves all
problems.
<Connector port="@connector-port@"
redirectPort="443"
protocol="org.apache.coyote.ajp.AjpNioProtocol"
packetSize="65536"
URIEncoding="UTF-8"
executor="tomcatThreadPool" />
Our packet size matches the configuration for mod_jk.
Feb 25, 2015 9:39:02 AM org.apache.catalina.core.ApplicationDispatcher
invoke
SEVERE: Servlet.service() for servlet velocity threw exception
java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
at
org.apache.coyote.ajp.AjpNioProcessor.output(AjpNioProcessor.java:305)
at
org.apache.coyote.ajp.AbstractAjpProcessor$SocketOutputBuffer.doWrite(AbstractAjpProcessor.java:1228)
at org.apache.coyote.Response.doWrite(Response.java:499)
at
org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:402)
at
org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:480)
at
org.apache.catalina.connector.OutputBuffer.realWriteChars(OutputBuffer.java:485)
at
org.apache.tomcat.util.buf.CharChunk.flushBuffer(CharChunk.java:464)
at org.apache.tomcat.util.buf.CharChunk.append(CharChunk.java:302)
at
org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:527)
at
org.apache.catalina.connector.CoyoteWriter.write(CoyoteWriter.java:152)
at
org.apache.velocity.io.VelocityWriter.flushBuffer(VelocityWriter.java:129)
at
org.apache.velocity.io.VelocityWriter.write(VelocityWriter.java:306)
at
org.apache.velocity.io.VelocityWriter.write(VelocityWriter.java:322)
at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:491)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
at org.apache.velocity.Template.merge(Template.java:356)
at org.apache.velocity.Template.merge(Template.java:260)
at
org.apache.velocity.tools.view.VelocityView.performMerge(VelocityView.java:942)
at
org.apache.velocity.tools.view.VelocityView.merge(VelocityView.java:902)
at
org.apache.velocity.tools.view.VelocityViewServlet.mergeTemplate(VelocityViewServlet.java:318)
at
org.apache.velocity.tools.view.VelocityLayoutServlet.mergeTemplate(VelocityLayoutServlet.java:247)
at
org.apache.velocity.tools.view.VelocityViewServlet.doRequest(VelocityViewServlet.java:220)
at
org.apache.velocity.tools.view.VelocityViewServlet.doGet(VelocityViewServlet.java:182)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748)
at
org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:604)
at
org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:543)
at
org.apache.struts.chain.commands.servlet.PerformForward.handleAsInclude(PerformForward.java:141)
at
org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:92)
at
org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:54)
at
org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)
at
org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at
org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:305)
at
org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191)
at
org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at
org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
Any ideas?
- -chris
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