i user 1.7.1 version elastic, now i want to 1.5 version.
i download 1.7. and 5.5.1 version, and execute in single.
in one second, 1.7 has 356260 success post. but 5.5.1 only have 63183 success post.
is has different default config param between 1.7 and 5.5.1， it make me confuse.