Linux JNA-based affinity not usable

[Chris]

Hi,

I am getting the following error trying to write for 1st time calling ExcerptAppender --> startExcerpt():

Warning: Linux JNA-based affinity not usable because it failed to load! Reason: java.lang.UnsatisfiedLinkError: /tmp/jna-100923095/jna6977498764791098418.tmp: /tmp/jna-100923095/jna6977498764791098418.tmp: failed to map segment from shared object:

Operation not permitted

Seems that the user (it is not root) does not have proper permissions to extract libjndidispatch.so from jna-4.1.0.jar (to /tmp/jna-xxxxxxx directory). OS is CentOS release 6.8 

What is the way to fix this issue? 

Regards,

Chris

[Peter Lawrey]

Hello,

   The Chronicle Queue v4.x doesn't do this.  I would suggest you use v4.4.3 and it shouldn't be a problem.

Regards,

   Peter.

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[Chris]

Hello Peter,

Thank you for your answer. Our application is bound to Java 7 for some reasons. I just saw "Java library for persisted low latency messaging (Java 8+)" description about v. 4.4.3. 

We're currently using version 3.4.2. I saw here the latest version for Java 7 is 3.6.2. 

Is there a chance that 3.6.2 or any other older version(intended for Java 7) does not produce this issue?

Regards

Chris

[Peter Lawrey]

It is possible though if this is a permissions issue it should still be a problem in older versions. It might not produce the warning however.

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