todo
performance related
timestamp path set to t
doc
ajust batch size
es thrift idl
rm pretty
ticker show lines processed and speed
in case of divide by zero
exclude post by default
run GC in ticker
use option instead of const
log for test
go test
should we try use break instead of return
work can decide its index name by itself
add kernal and phperror log parser and unit test
fix empty json syntax
read mem info must
logging EOF