commit | 15b597460d922a0e9df463bd3f2990cf6abdacb0 | [log] [tgz] |
---|---|---|
author | Nick Vatamaniuc <vatamane@apache.org> | Sat Apr 18 15:16:23 2020 -0400 |
committer | Nick Vatamaniuc <vatamane@apache.org> | Sat Apr 18 15:16:23 2020 -0400 |
tree | b6be5f60c79d65fc1ea3b93c7623e70a241398ff | |
parent | 5396535067c99b45b22cf915d3b67961c2a68aad [diff] |
Do not create a new transaction object during retries `on_error` function automatically resets the transaction object but preserves retry and backoff-related information in the object. Avoid creating a new transaction object which would lose that context in case transactions retry more than 2 times. Reference: https://apple.github.io/foundationdb/api-c.html#c.fdb_transaction_on_error
This project is a NIF wrapper for the FoundationDB C API. Documentation on the main API can be found here.
This project also provides a conforming implementation of the Tuple and Directory layers.
Assuming you have installed the FoundationDB C API library, building erlfdb is as simple as:
$ make
Alternatively, adding erlfdb as a rebar dependency should Just Work ®.
Documentation for installing FoundationDB can be found here for macOS or here for Linux.
A simple example showing how to open a database and read and write keys:
Eshell V9.3.3.6 (abort with ^G) 1> Db = erlfdb:open(<<"/usr/local/etc/foundationdb/fdb.cluster">>). {erlfdb_database,#Ref<0.2859661758.3941466120.85406>} 2> ok = erlfdb:set(Db, <<"foo">>, <<"bar">>). ok 3> erlfdb:get(Db, <<"foo">>). <<"bar">> 4> erlfdb:get(Db, <<"bar">>). not_found
FoundationDB has a custom binding tester that can be used to test whether changes have broken compatibility. See the BINDING_TESTER documentation for instructions on building and running that system.