When trying to deploy an app with ruby 2.2.0 and rails 4.2.0 with gems redis v3.0.1 and hiredis v0.4.5 task which responsible for interactions with redis server fails with the following error:
.....ruby/2.2.0/gems/hiredis-0.4.5/lib/hiredis/ext/hiredis_ext.so: undefined symbol: rb_thread_select
cap aborted!
Does anyone faced the same issue?
rb_thread_select has been deprecated and removed from trunk so you will need to use a current version of hiredis which has removed the rb_thread_select dependency.