Raise ElasticJournal @bufferSize
Raise ElasticJournal @bufferSize

- When running znclient, we can generate more than 500 requests in the @flushTimeout of 1s;
- As such, they are synchronously written to ElasticSearch, which causes one request to take significantly longer;
- This makes it useless, since we are trying to tweak HttpClient settings :p

filipetoscano/Zinc