Specified key was too long error.

The following error message is shown when creating table.

# mysql -uroot < ./s2core/target/scala-2.11/classes/org/apache/s2graph/core/mysqls/schema.sql
ERROR 1071 (42000) at line 26: Specified key was too long; max key length is 767 bytes

There is restriction for index key length under the default mysql configuration.
I succeeded creating table after setting some variables. See the following article.

http://mechanics.flite.com/blog/2014/07/29/using-innodb-large-prefix-to-avoid-error-1071/