Description:
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Initially I have tested with the default php-5.3.3 RH php_mod version.
Also compiled version 3.0.8 of php_memcache for it.
Then I tested php56 with rh-php56-php-pecl-memcache-3.0.8-12.el6.x86_64, but got the same results.

I'm testing php_memcache with 2 memcache backends.
I have a script running that creates a session though php and than checks with memcached-tool if both memcached backends have this session.

I use repcached als memcached backend.

This works fine.
But when I stop one of the memcache backends I see that the server with memcached stopped still regularly is called to set the session and it is not retried on the online memcached service, meaning setting this session fails.

I tried tuning 'retry_interval' to see if it has impact, is does not.


session.save_handler = memcache
session.save_path = "tcp://10.1.11.154:11211?persistent=1&timeout=1&retry_interval=900,tcp://10.1.11.156:11211?persistent=1&timeout=1&retry_interval=900"
memcache.allow_failover=1
memcache.redundancy=1


Test script:
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if needed let me know.

Expected result:
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The remaining memcached backend should have the session set.

Actual result:
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The remaining memcached backend does not have the session set.