steveloughran commented on pull request #2599:
URL: https://github.com/apache/hadoop/pull/2599#issuecomment-756134591


   if it's not found you don't get any attempts to patch in the wildfly/openssl 
library. HTTPS connections may be slower. 
   
   You will stay with the java https factory. I think you may retain the 
inefficient algorithm which came with java8; there's a bit of fixup in the 
hadoop-common lib to strip out one of them.
   
   Other than that, if you have wildfly and openssl on the CP, you won't see 
any speedup, because you won't get that native library binding
   
   that wildfly/openssl binding has been a PITA; very brittle. I don't want to 
go near it if I can help it, and doing the fixup for unshaded JARs will add a 
codepath which will not get tested during normal builds. We have enough 
problems that the JAR and various openssl releases have been incompatible, 
making it brittle on some linux images. The fact that an azure SDK kept the old 
widfly classes hidden unshaded in its JAR made this very hard to eliminate as 
source of stack traces.
   
   
   Given you want to use the unshaded JARs for lighter images, I think you'll 
have to accept that a price of that is "no speedup from native openssl". That's 
all. What is important is: you won't get linkage errors any more


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