The BPM engine has many STUCK threads when working with Frevvo Web Forms. (Doc ID 2762620.1)

Last updated on JANUARY 08, 2024

Applies to:

Symptoms

The engine shows many STUCK threads with the following stack:

"[STUCK] ExecuteThread: '385' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=10 tid=0x00007f4c584b7000 nid=0x2c52 runnable [0x00007f4ba05bb000]
  java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
- locked (a sun.nio.ch.Util$2)
- locked (a java.util.Collections$UnmodifiableSet)
- locked (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
at weblogic.socket.NIOSocketMuxer$NIOInputStream.readInternal(NIOSocketMuxer.java:844)
at weblogic.socket.NIOSocketMuxer$NIOInputStream.read(NIOSocketMuxer.java:788)
at weblogic.socket.NIOSocketMuxer$NIOInputStream.read(NIOSocketMuxer.java:771)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
- locked (a java.io.BufferedInputStream)
at weblogic.net.http.MessageHeader.isHTTP(MessageHeader.java:310)
at weblogic.net.http.MessageHeader.parseHeader(MessageHeader.java:232)
at weblogic.net.http.HttpClient.parseHTTP(HttpClient.java:549)
at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.java:639)
- locked (a weblogic.net.http.SOAPHttpURLConnection)
at weblogic.net.http.SOAPHttpURLConnection.getInputStream(SOAPHttpURLConnection.java:37)
at weblogic.net.http.HttpURLConnection.getResponseCode(HttpURLConnection.java:1445)
at com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:535)

Cause

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