[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Mark Thomas changed: What|Removed |Added CC||huangzeling8...@dingtalk.co ||m --- Comment #18 from Mark Thomas --- *** Bug 68908 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Remy Maucherat changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #17 from Remy Maucherat --- Please do not reopen the BZ. No problem has been reported with this code, which never had any try/catch, so no try/catch needed. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839
Venkat changed:
What|Removed |Added
Ever confirmed|1 |0
Status|RESOLVED|UNCONFIRMED
Resolution|FIXED |---
--- Comment #16 from Venkat ---
(In reply to Remy Maucherat from comment #13)
> A previous refactoring of the Poller.events() could cause this uncaught
> exception to occur. This is fixed in 10.0.0-M10 and 9.0.40 where the NPE
> will be logged properly and Tomcat should be able to continue processing
> requests.
Iterator iterator =
keyCount > 0 ? selector.selectedKeys().iterator() : null;
// Walk through the collection of ready keys and dispatch
// any active event.
while (iterator != null && iterator.hasNext()) {
SelectionKey sk = iterator.next();
iterator.remove();
NioSocketWrapper socketWrapper = (NioSocketWrapper)
sk.attachment();
// Attachment may be null if another thread has called
// cancelledKey()
if (socketWrapper != null) {
processKey(sk, socketWrapper);
}
}
// Process timeouts
timeout(keyCount,hasEvents);
This piece of code in Poller run() is still not in try catch ,any unexpected
exception can cause this thread to die , are you taking care of this as well.
Any hints to reproduce and test this NPE exception in Poller run().
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[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Mark Thomas changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #15 from Mark Thomas --- Also back-ported to 8.5.x for 8.5.60 onwards. As always, the next round of releases will start around the beginning of the month once all the open issues have been addressed. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #14 from Arshiya --- Thanks a ton Remy! Any update on the tentative release date of 9.0.40 please . -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #13 from Remy Maucherat --- A previous refactoring of the Poller.events() could cause this uncaught exception to occur. This is fixed in 10.0.0-M10 and 9.0.40 where the NPE will be logged properly and Tomcat should be able to continue processing requests. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #12 from Remy Maucherat --- I made a mistake, I was not looking at the right call to events(). So this should be tightened up [although I don't see how it can end up in this situation]. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #11 from Arshiya --- Thank you for the swift response Remy. For a few hours the application accepts requests and processes fine , but suddenly after this exception is logged , none of the requests are accepted (tps drops to 0) . Is this because the external client closes the connection causing this issue in the Poller ? If the issue is due to the environment , what can the suspect be on ? -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #10 from Remy Maucherat --- Ok, so this NPE will be caught and logged with no major consequences. There is normally no way it could happen, however (the SocketChannel of the NioChannel is null, which only happens for the closed channel, which is not supposed to be in the poller). -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Arshiya changed: What|Removed |Added Status|NEEDINFO|NEW --- Comment #9 from Arshiya --- Please find the trace of the NullPointerException: Exception in thread "http-nio-x.y.x-1090-ClientPoller" java.lang.NullPointerException at org.apache.tomcat.util.net.NioEndpoint$Poller.events(NioEndpoint.java:614) at org.apache.tomcat.util.net.NioEndpoint$Poller.run(NioEndpoint.java:730) at java.lang.Thread.run(Thread.java:748) -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Remy Maucherat changed: What|Removed |Added Status|NEW |NEEDINFO --- Comment #8 from Remy Maucherat --- You previously reported this BufferOverflowException on the user list, and Mark found and fixed the (actually totally harmless) issue in Tomcat 9.0.39. Please provide details on the NPE using the JVM setting. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
Re: [Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
On Thu, Oct 22, 2020 at 5:56 PM wrote: > https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 > > Arshiya changed: > >What|Removed |Added > > > Status|NEEDINFO|NEW > > --- Comment #7 from Arshiya --- > The BufferOverFlow Exception was printed for about 4 times and then the > NullPointer Exception.. The exact time stamp of the trace is not known. > > Exception in thread "http-nio-x.y.z-1090-exec-20" > java.nio.BufferOverflowException > I think this has been fixed in 9.0.39. Please upgrade! > at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:206) > at > org.apache.tomcat.util.net > .SocketBufferHandler.unReadReadBuffer(SocketBufferHandler.java:100) > at > org.apache.tomcat.util.net > .SocketWrapperBase.unRead(SocketWrapperBase.java:401) > at > > org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.completed(Http2AsyncParser.java:306) > at > > org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.completed(Http2AsyncParser.java:163) > at > org.apache.tomcat.util.net > .SocketWrapperBase$VectoredIOCompletionHandler.completed(SocketWrapperBase.java:1087) > at > org.apache.tomcat.util.net > .NioEndpoint$NioSocketWrapper$NioOperationState.run(NioEndpoint.java:1511) > at > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at > > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) > at java.lang.Thread.run(Thread.java:748) > > Please let us know if this is of any help ? > > Please find the hardware specs /Java version > Hardware Spec > Environment - OpenStack Compute hosted on VM > RAM - RAM - 119478416 - 119 GB > Cores of CPU - 12 > OS - RHEL 7.4 > Kernel version - 3.10.0-693.58.1.el7.x86_64 > Java Version:1.8.0_241 > > -- > You are receiving this mail because: > You are the assignee for the bug. > - > To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org > For additional commands, e-mail: dev-h...@tomcat.apache.org > >
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Arshiya changed: What|Removed |Added Status|NEEDINFO|NEW --- Comment #7 from Arshiya --- The BufferOverFlow Exception was printed for about 4 times and then the NullPointer Exception.. The exact time stamp of the trace is not known. Exception in thread "http-nio-x.y.z-1090-exec-20" java.nio.BufferOverflowException at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:206) at org.apache.tomcat.util.net.SocketBufferHandler.unReadReadBuffer(SocketBufferHandler.java:100) at org.apache.tomcat.util.net.SocketWrapperBase.unRead(SocketWrapperBase.java:401) at org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.completed(Http2AsyncParser.java:306) at org.apache.coyote.http2.Http2AsyncParser$FrameCompletionHandler.completed(Http2AsyncParser.java:163) at org.apache.tomcat.util.net.SocketWrapperBase$VectoredIOCompletionHandler.completed(SocketWrapperBase.java:1087) at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper$NioOperationState.run(NioEndpoint.java:1511) 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) Please let us know if this is of any help ? Please find the hardware specs /Java version Hardware Spec Environment - OpenStack Compute hosted on VM RAM - RAM - 119478416 - 119 GB Cores of CPU - 12 OS - RHEL 7.4 Kernel version - 3.10.0-693.58.1.el7.x86_64 Java Version:1.8.0_241 -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #6 from Mark Thomas --- +1 to adding that JVM option and then review tge full stack trace as the next step. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Remy Maucherat changed: What|Removed |Added Status|NEW |NEEDINFO --- Comment #5 from Remy Maucherat --- (In reply to Mark Thomas from comment #4) > The most that looks > possible at this stage is to add some additional try/catch blocks with > logging of exceptions. I don't see any legitimate place where a NPE can occur, nor any place to add such a try/catch in a useful way. Would setting -XX:-OmitStackTraceInFastThrow allow getting the NPE trace ? If not, then IMO it's a NIO error with the JVM and this should be closed. And actually, I think it's probably good to check a new JVM (11 or more recent, lots of fixes and refactorings in NIO). -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #4 from Mark Thomas --- Without the stack trace there isn't much we can do. The most that looks possible at this stage is to add some additional try/catch blocks with logging of exceptions. It would be helpful to see the following: - hardware specification - exact OS version - exact JRE vendor and version Given our inability so far to recreate these issues with the provided test cases and that the issues don't seem to be occurring for other users, I am beginning to suspect an issue in a component other than Tomcat. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Arshiya changed: What|Removed |Added Status|NEEDINFO|NEW --- Comment #3 from Arshiya --- This is was the only line that was printed in the logs in production , and we are not aware why this will happen . -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 Mark Thomas changed: What|Removed |Added Status|NEW |NEEDINFO Severity|blocker |normal --- Comment #2 from Mark Thomas --- We need the full stack trace to investigate this further. Note: maxThreads="200" is the Tomcat default. If you are referring to a different setting please be explicit about which one. -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
[Bug 64839] HTTP2: Exception in thread "http-nio-x.y.z-1090-ClientPoller" java.lang.NullPointerException
https://bz.apache.org/bugzilla/show_bug.cgi?id=64839 --- Comment #1 from Remy Maucherat --- Can you provide the full stack trace of the exception ? -- You are receiving this mail because: You are the assignee for the bug. - To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
