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* Boldly make SQLite WAL mode the default again. Hopefully the

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intermittent problems are gone by now.  WAL mode is preferrable
  because it does way fewer fsyncs.
This commit is contained in:
Eelco Dolstra 2011-11-07 21:11:59 +00:00
parent a6a3f3a8c2
commit c0b706213d
2 changed files with 4 additions and 5 deletions
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2
configure.ac
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@ -255,7 +255,7 @@ AC_ARG_WITH(sqlite, AC_HELP_STRING([--with-sqlite=PATH],
[prefix of SQLite]), [prefix of SQLite]),
sqlite=$withval, sqlite=) sqlite=$withval, sqlite=)
AM_CONDITIONAL(HAVE_SQLITE, test -n "$sqlite") AM_CONDITIONAL(HAVE_SQLITE, test -n "$sqlite")
SQLITE_VERSION=3070701 SQLITE_VERSION=3070900
AC_SUBST(SQLITE_VERSION) AC_SUBST(SQLITE_VERSION)
if test -z "$sqlite"; then if test -z "$sqlite"; then
sqlite_lib='${top_builddir}/externals/sqlite-autoconf-$(SQLITE_VERSION)/libsqlite3.la' sqlite_lib='${top_builddir}/externals/sqlite-autoconf-$(SQLITE_VERSION)/libsqlite3.la'

7
src/libstore/local-store.cc
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@ -327,10 +327,9 @@ void LocalStore::openDB(bool create)
if (sqlite3_exec(db, ("pragma synchronous = " + syncMode + ";").c_str(), 0, 0, 0) != SQLITE_OK) if (sqlite3_exec(db, ("pragma synchronous = " + syncMode + ";").c_str(), 0, 0, 0) != SQLITE_OK)
throwSQLiteError(db, "setting synchronous mode"); throwSQLiteError(db, "setting synchronous mode");
/* Set the SQLite journal mode. WAL mode is fastest, but doesn't /* Set the SQLite journal mode. WAL mode is fastest, so it's the
seem entirely stable at the moment (Oct. 2010). Thus, use default. */
truncate mode by default. */ string mode = queryBoolSetting("use-sqlite-wal", true) ? "wal" : "truncate";
string mode = queryBoolSetting("use-sqlite-wal", false) ? "wal" : "truncate";
string prevMode; string prevMode;
{ {
SQLiteStmt stmt; SQLiteStmt stmt;