Error receiving response: ReceiveResponse: receive pkg hdr failed: ReceivePkgHdr: not

[Chris.G]

Hi Guys

Any idea on this error ?

Error receiving response: ReceiveResponse: receive pkg hdr failed: ReceivePkgHdr: nothing to read from backend socket

[sumesh]

Hi Chris

Long time : I guess you have Mod_LSAPI running in your server. Can you please confirm if that is the case. 

If you have cloudlinux installed , then please check the below things

1. Check the site for any resource limit faults and especially memory related limits. 

You can check the lve details using the below command 



# lveinfo --by-fault ep


2. Another thing is if you are having mod_lsapi , please disable lsapi_terminate_backends_on_exit  value in /etc/apache2/conf.d/lsapi.conf and restart Apache and check the issue again. 

3.  Another possiblity is mix installation of opcache like APC, Opcache etc . Please try disabling the opcaches completely 

4. Also try increasing values like lsapi_backend_pgrp_max_idle, lsapi_backend_max_process_time to higher values . 

Let me know chris whch ones works for you so that others can also get help from this at some point of time.