diff options
Diffstat (limited to 'nixos/modules/services/databases/foundationdb.xml')
| -rw-r--r-- | nixos/modules/services/databases/foundationdb.xml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/nixos/modules/services/databases/foundationdb.xml b/nixos/modules/services/databases/foundationdb.xml index d10a5cfe836..2a0e3c76c9d 100644 --- a/nixos/modules/services/databases/foundationdb.xml +++ b/nixos/modules/services/databases/foundationdb.xml @@ -16,8 +16,8 @@ <para>FoundationDB (or "FDB") is a distributed, open source, high performance, transactional key-value store. It can store petabytes of data and deliver -exceptional performance while maintaining consistency and ACID semantics over a -large cluster.</para> +exceptional performance while maintaining consistency and ACID semantics +(serializable transactions) over a large cluster.</para> <section><title>Configuring and basic setup</title> @@ -101,7 +101,7 @@ FoundationDB worker processes that should be started on the machine.</para> <para>FoundationDB worker processes typically require 4GB of RAM per-process at minimum for good performance, so this option is set to 1 by default since the -maximum aount of RAM is unknown. You're advised to abide by this restriction, +maximum amount of RAM is unknown. You're advised to abide by this restriction, so pick a number of processes so that each has 4GB or more.</para> <para>A similar option exists in order to scale backup agent processes, @@ -129,7 +129,8 @@ client applications will use to find and join coordinators. Note that this file <emphasis>can not</emphasis> be managed by NixOS so easily: FoundationDB is designed so that it will rewrite the file at runtime for all clients and nodes when cluster coordinators change, with clients transparently handling this -without intervention.</para> +without intervention. It is fundamentally a mutable file, and you should not +try to manage it in any way in NixOS.</para> <para>When dealing with a cluster, there are two main things you want to do:</para> |