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set sqlite3 options for full durability

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Scott Lamb 2019-07-10 01:09:52 -07:00
parent 1c904b925a
commit f80c99a43f
2 changed files with 8 additions and 0 deletions
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4
db/db.rs
View File

@ -1791,6 +1791,8 @@ impl LockedDatabase {
/// test code.
pub fn init(conn: &mut rusqlite::Connection) -> Result<(), Error> {
conn.execute("pragma foreign_keys = on", &[] as &[&ToSql])?;
conn.execute("pragma fullfsync = on", &[] as &[&ToSql])?;
conn.execute("pragma synchronous = 2", &[] as &[&ToSql])?;
let tx = conn.transaction()?;
tx.execute_batch(include_str!("schema.sql"))?;
{
@ -1852,6 +1854,8 @@ impl<C: Clocks + Clone> Database<C> {
pub fn new(clocks: C, conn: rusqlite::Connection,
read_write: bool) -> Result<Database<C>, Error> {
conn.execute("pragma foreign_keys = on", &[] as &[&ToSql])?;
conn.execute("pragma fullfsync = on", &[] as &[&ToSql])?;
conn.execute("pragma synchronous = 2", &[] as &[&ToSql])?;
{
let ver = get_schema_version(&conn)?.ok_or_else(|| format_err!(
"no such table: version. \

4
db/upgrade/mod.rs
View File

@ -97,6 +97,10 @@ pub fn run(args: &Args, conn: &mut rusqlite::Connection) -> Result<(), Error> {
// be careful about the order of operations during the upgrade.
conn.execute("pragma foreign_keys = on", &[] as &[&ToSql])?;
// Make the database actually durable.
conn.execute("pragma fullfsync = on", &[] as &[&ToSql])?;
conn.execute("pragma synchronous = 2", &[] as &[&ToSql])?;
// WAL is the preferred journal mode for normal operation; it reduces the number of syncs
// without compromising safety.
set_journal_mode(&conn, "wal").unwrap();