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fs mounts: reduce nfs timeouts, for faster shutdown

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it still takes 90s; maybe the issue is nested mounts?
This commit is contained in:
Colin 2023-06-15 09:25:48 +00:00
parent 9eb36441e1
commit 17041384e9
1 changed files with 35 additions and 17 deletions
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52
hosts/common/fs.nix
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@ -7,30 +7,48 @@ let fsOpts = rec {
"x-systemd.requires=network-online.target"
"x-systemd.after=network-online.target"
];
sshCommon = common ++ [
"user"
"identityfile=/home/colin/.ssh/id_ed25519"
"allow_other"
"default_permissions"
];
sshColin = sshCommon ++ [
"transform_symlinks"
"idmap=user"
"uid=1000"
"gid=100"
];
sshRoot = sshCommon ++ [
# we don't transform_symlinks because that breaks the validity of remote /nix stores
"sftp_server=/run/wrappers/bin/sudo\\040/run/current-system/sw/libexec/sftp-server"
];
auto = [ "x-systemd.automount" ];
noauto = [ "noauto" ];
wg = [
"x-systemd.requires=wireguard-wg-home.service"
"x-systemd.after=wireguard-wg-home.service"
];
ssh = common ++ [
"user"
"identityfile=/home/colin/.ssh/id_ed25519"
"allow_other"
"default_permissions"
];
sshColin = ssh ++ [
"transform_symlinks"
"idmap=user"
"uid=1000"
"gid=100"
];
sshRoot = ssh ++ [
# we don't transform_symlinks because that breaks the validity of remote /nix stores
"sftp_server=/run/wrappers/bin/sudo\\040/run/current-system/sw/libexec/sftp-server"
];
# in the event of hunt NFS mounts, consider:
# - <https://unix.stackexchange.com/questions/31979/stop-broken-nfs-mounts-from-locking-a-directory>
# NFS options: <https://linux.die.net/man/5/nfs>
# actimeo=n = how long (in seconds) to cache file/dir attributes (default: 3-60s)
# bg = retry failed mounts in the background
# retry=n = for how many minutes `mount` will retry NFS mount operation
# soft = on "major timeout", report I/O error to userspace
# retrans=n = how many times to retry a NFS request before giving userspace a "server not responding" error (default: 3)
# timeo=n = number of *deciseconds* to wait for a response before retrying it (default: 600)
# note: client uses a linear backup, so the second request will have double this timeout, then triple, etc.
nfs = common ++ [
# "actimeo=10"
# "bg"
"retrans=4"
"retry=0"
"soft"
"timeo=15"
];
};
in
{
@ -44,7 +62,7 @@ in
device = "servo-hn:/";
noCheck = true;
fsType = "nfs";
options = fsOpts.common ++ fsOpts.auto ++ fsOpts.wg;
options = fsOpts.nfs ++ fsOpts.auto ++ fsOpts.wg;
};
# fileSystems."/mnt/servo-media-nfs" = {
# device = "servo-hn:/media";