[Bug 63223] org.apache.coyote.http2.Http2UpgradeHandler.pruneClosedStreams

2019-03-07 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=63223

Mark Thomas  changed:

   What|Removed |Added

 Status|REOPENED|RESOLVED
 Resolution|--- |FIXED

--- Comment #4 from Mark Thomas  ---
Looking at the code, those messages should never appear if everything is being
tracked correctly. I've found a couple of places where pushed streams weren't
being properly tracked and I've fixed them. I've also improved the error
message so, if it should be logged, it is clearer what is happening.

I'm still a little concerned at the rate the messages were being logged. The
most they can appear - even if the tracking has gone wrong - is once every 10
new streams created for a connection. The rate you were seeing the messages
suggests a very high rate of stream creation. The access log should be able to
confirm this.

Should you still see this in 9.0.17 the improved log messages will help. The
other thing that would be useful is a thread dump. ideally three thread dumps
taken one after another.

Fixed in:
- trunk for 9.0.17 onwards
- 8.5.x for 8.5.39 onwards

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[Bug 63223] org.apache.coyote.http2.Http2UpgradeHandler.pruneClosedStreams

2019-03-05 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=63223

--- Comment #3 from Mark Thomas  ---
We can look at reducing the logging frequency but the remainder of this issue
belongs on the users@ list for now.

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[Bug 63223] org.apache.coyote.http2.Http2UpgradeHandler.pruneClosedStreams

2019-03-04 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=63223

TehKantz  changed:

   What|Removed |Added

 Resolution|INVALID |---
 Status|RESOLVED|REOPENED

--- Comment #2 from TehKantz  ---
This is is the configuration used for the ssl connection as part of the tomcat
server.xml template:









I am not sure that the behavior is correct. 
when it happens, the server gets into a blocking state rejecting requests from
all users across all WebApps, and the only way to stop it is killing the
process.  
It Doesn't seems to be a desired behaviour, on top of that the logs created
from this are insane it blocks the IO of the server make it even harder to
shutdown the process

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[Bug 63223] org.apache.coyote.http2.Http2UpgradeHandler.pruneClosedStreams

2019-03-04 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=63223

Mark Thomas  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |INVALID

--- Comment #1 from Mark Thomas  ---
That behaviour looks to be correct. The client for Connection 3442 has exceeded
the maximum number of open streams per connection so subsequent requests to
open a new stream are rejected.

Please follow the up on the users@ mailing list where you can provide more
details about the use case and potential configuration changes can be
discussed.

If further investigation does identify a Tomcat bug then this issue can be
re-opened.

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