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https://issues.apache.org/jira/browse/OPENMEETINGS-2358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111511#comment-17111511
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Sebastian Wagner commented on OPENMEETINGS-2358:
------------------------------------------------
Why do we need to send the image data via websocket at all ?
Is that what you mean by "send via Rest call" ?
> Download as PDF with 1 image in the whiteboard crashes the application
> ----------------------------------------------------------------------
>
> Key: OPENMEETINGS-2358
> URL: https://issues.apache.org/jira/browse/OPENMEETINGS-2358
> Project: Openmeetings
> Issue Type: Bug
> Components: WhiteBoard
> Affects Versions: 5.0.0-M4
> Reporter: Sebastian Wagner
> Priority: Major
> Fix For: 5.0.0-M5
>
> Attachments: StackTrace-Crash-Room.rtf,
> image-2020-05-17-09-13-26-975.png
>
>
> Steps to reproduce:
> * Open any conference room
> * Upload a PNG/jpeg to the library
> * Put it into the whiteboard
> * Go via the menu bar > Download as PDF
> Results in:
> {code:java}
> ERROR 05-17 09:02:57.783 o.a.w.p.w.j.WicketEndpoint:100 [tp467402189-196] -
> An error occurred in web socket connection with id : 4
> org.eclipse.jetty.websocket.api.MessageTooLargeException: Text message size
> [90791] exceeds maximum size [65536]
> at
> org.eclipse.jetty.websocket.api.WebSocketPolicy.assertValidTextMessageSize(WebSocketPolicy.java:140)
> at
> org.eclipse.jetty.websocket.common.Parser.assertSanePayloadLength(Parser.java:131)
> at org.eclipse.jetty.websocket.common.Parser.parseFrame(Parser.java:499)
> at
> org.eclipse.jetty.websocket.common.Parser.parseSingleFrame(Parser.java:256)
> at
> org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:582)
> at
> org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:441)
> at
> org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:428)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
> at
> org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:426)
> at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:320)
> at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:158)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
> at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
> at
> org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
> at
> org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:367)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:782)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:918)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
>
> !image-2020-05-17-09-13-26-975.png|width=353,height=220!
> And if you do this few times it will crash the OpenMeetings instance and you
> have to restart the server.
>
> There is a more complete stack trace attached. Above stack trace is when the
> server is basically crashed. See: [^StackTrace-Crash-Room.rtf]
>
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