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improving postgres wal

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Richie Cahill
2026-03-28 20:28:35 -04:00
parent 261ff139f7
commit dda318753b
3 changed files with 14 additions and 0 deletions
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12
systems/jeeves/services/postgress.nix
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@@ -5,6 +5,18 @@ in
{
networking.firewall.allowedTCPPorts = [ 5432 ];
# Symlink pg_wal to a ZFS dataset on the special (metadata) vdev for fast WAL writes
systemd.services.postgresql.preStart = pkgs.lib.mkAfter ''
if [ ! -L "${vars.database}/postgres/pg_wal" ] && [ -d "${vars.database}/postgres/pg_wal" ]; then
echo "Moving pg_wal to ${vars.postgres_wal} and creating symlink..."
cp -a "${vars.database}/postgres/pg_wal/." "${vars.postgres_wal}/"
rm -rf "${vars.database}/postgres/pg_wal"
ln -s "${vars.postgres_wal}" "${vars.database}/postgres/pg_wal"
elif [ ! -e "${vars.database}/postgres/pg_wal" ]; then
ln -s "${vars.postgres_wal}" "${vars.database}/postgres/pg_wal"
fi
'';
services.postgresql = {
enable = true;
package = pkgs.postgresql_17_jit;