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* Test whether distributed locking works on NFS.

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svn path=/nixos/branches/boot-order/; revision=22197
This commit is contained in:
Eelco Dolstra 2010-06-09 13:18:49 +00:00
parent 645ed8d3b4
commit 6e27ce8e8e
1 changed files with 33 additions and 16 deletions
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49
tests/nfs.nix
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@ -1,18 +1,25 @@
{ pkgs, ... }:
let
client =
{ config, pkgs, ... }:
{ fileSystems = pkgs.lib.mkOverride 50 {}
[ { mountPoint = "/data";
device = "server:/data";
fsType = "nfs";
options = "bootwait";
}
];
};
in
{
nodes =
{ client =
{ config, pkgs, ... }:
{ fileSystems = pkgs.lib.mkOverride 50 {}
[ { mountPoint = "/data";
device = "server:/data";
fsType = "nfs";
options = "bootwait";
}
];
};
{ client1 = client;
client2 = client;
server =
{ config, pkgs, ... }:
@ -33,14 +40,24 @@
$server->waitForJob("nfs-kernel-mountd");
$server->waitForJob("nfs-kernel-statd");
$client->waitForJob("nfs-kernel-statd");
$client->waitForJob("tty1"); # depends on filesystems
$client->succeed("echo bar > /data/foo");
$client1->waitForJob("tty1"); # depends on filesystems
$client1->succeed("echo bla > /data/foo");
$server->succeed("test -e /data/foo");
$client->shutdown;
$client2->waitForJob("tty1"); # depends on filesystems
$client2->succeed("echo bla > /data/bar");
$server->succeed("test -e /data/bar");
# Test whether we can get a lock. !!! This step takes about 90
# seconds because the NFS server waits that long after booting
# before accepting new locks.
$client2->succeed("time flock -n -s /data/lock true >&2");
# Test locking: client 1 acquires an exclusive lock, so client 2
# should then fail to acquire a shared lock.
$client1->succeed("flock -x /data/lock -c 'touch locked; sleep 100000' &");
$client1->waitForFile("locked");
$client2->fail("flock -n -s /data/lock true");
'';
}