tlogserver

Go Tlog Server

erasure coding

It use isa-l C library and templexxx/reedsolomon Go library for erasure coding.

Only one can be used at a time.

By default, the erasure coding is done in go.

When using the C isa-l library for the erasure coding, -tags isal needs be passed to go build. And GODEBUG=cgocheck=0 environment variable need to be set in order to run it.

Build

From this repo root directory

make tlogserver

Usage

Run it

./bin/tlogserver  -storage-addresses=127.0.0.1:16379 -k 16 -m 4

It starts tlog server that:

• listen on default listen address 0.0.0.0:11211
• need 16 data shards and 4 parity/coding shards -> total 20 ardb
• first ardb address is 127.0.0.1:16379, the seconds is in same IP but in port 16380, the third in port 16381, and so on...

To specify each ardb adddress, use array as address, example:-storage-addresses=127.0.0.1:16379,127.0.0.1:16380,127.0.0.1:16381 to specify 3 ardbs

Use tlog client as described in client readme to send transaction log to this tlog server.

benchmark

GODEBUG=cgocheck=0 go test -tags isal -bench=.