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Pega application stopped responding for 10-15 min

SA-53624

Summary



Pega application stopped responding for 10-15 min and thread dump was generated.


Error Messages



Offending thread with thread stack below,

"a-thread-id" Id=242 in RUNNABLE (running in native)

BlockedCount : 43114, BlockedTime : -1, WaitedCount : 47897, WaitedTime : -1

    at java.io.FileInputStream.readBytes(Native Method)

    at java.io.FileInputStream.read(FileInputStream.java:272)

    at sun.security.provider.NativePRNG$RandomIO.readFully(NativePRNG.java:202)

    at sun.security.provider.NativePRNG$RandomIO.implGenerateSeed(NativePRNG.java:219)

      - locked java.lang.Object@1cd65913

    at sun.security.provider.NativePRNG$RandomIO.access$300(NativePRNG.java:125)

    at sun.security.provider.NativePRNG.engineGenerateSeed(NativePRNG.java:119)

    at java.security.SecureRandom.generateSeed(SecureRandom.java:517)

    at com.pega.pegarules.exec.internal.util.PRRandom.reseedGenerator(PRRandom.java:101)

    at com.pega.pegarules.exec.internal.util.PRRandom.checkToReseed(PRRandom.java:106)

    at com.pega.pegarules.exec.internal.util.PRRandom.nextInt(PRRandom.java:89)

    at com.pegarules.generated.activity.ra_action_retrievevolumemetrics_48ebd747d706912ee8a1358d0caa7251.step2_0_circum0_Embed_PegaCA_ServiceVolume(ra_action_retrievevolumemetrics_48ebd747d706912ee8a1358d0caa7251.java:266)

    at com.pegarules.generated.activity.ra_action_retrievevolumemetrics_48ebd747d706912ee8a1358d0caa7251.perform(ra_action_retrievevolumemetrics_48ebd747d706912ee8a1358d0caa7251.java:112)

    at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3375)

    at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10450)

   at com.pegarules.generated.activity.ra_action_getcontactcentervolume_41e3e84bca768cc9b56e5b90a4604382.step1_circum0(ra_action_getcontactcentervolume_41e3e84bca768cc9b56e5b90a4604382.java:205)

at com.pegarules.generated.activity.ra_action_getcontactcentervolume_41e3e84bca768cc9b56e5b90a4604382.perform(ra_action_getcontactcentervolume_41e3e84bca768cc9b56e5b90a4604382.java:69)

…………..


Steps to Reproduce



Unknown.


Root Cause



Possible defect with Oracle JDK running on Red Hat.  

https://access.redhat.com/solutions/34626

Resolution


 

Per Red Hat, include additional JVM argument -Djava.security.egd=file:/dev/./urandom.

Suggest Edit

Published July 23, 2018 - Updated October 8, 2020

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