* break up code and use lazy reading and pool bufio.Writer
* close underlying connection when operation failed
* allocate bufWriter and streamWriter only once
* refactor record writing
* rebase from master
* handle err
* Fix type assertion
Also reduce some duplication
* Refactor client and clientCloser for logging
Should reduce allocations
* Minor cosmetic adjustments; apply Apache license
* Appease the linter
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>