Add more tunes to sqlite

diff --git a/src/libutil/sqlite_utils.c b/src/libutil/sqlite_utils.c
index 0458a0a020a2582bcdd718d5a66ca01da1abac28..bf8210c714ff018cad8a5e74989c22179f435679 100644 (file)
--- a/src/libutil/sqlite_utils.c
+++ b/src/libutil/sqlite_utils.c
@@ -248,11 +248,20 @@ rspamd_sqlite3_open_or_create (rspamd_mempool_t *pool, const gchar *path, const
        sqlite3 *sqlite;
        gint rc, flags, lock_fd;
        gchar lock_path[PATH_MAX], dbdir[PATH_MAX], *pdir;
-       static const char sqlite_wal[] = "PRAGMA journal_mode=\"wal\";",
-                       exclusive_lock_sql[] = "PRAGMA locking_mode=\"exclusive\";",
-                       fsync_sql[] = "PRAGMA synchronous=1;",
-                       foreign_keys[] = "PRAGMA foreign_keys=\"ON\";",
-                       enable_mmap[] = "PRAGMA mmap_size=268435456;";
+       static const char sqlite_wal[] =
+                                                                       "PRAGMA journal_mode=\"wal\";"
+                                                                       "PRAGMA wal_autocheckpoint = 16;"
+                                                                       "PRAGMA journal_size_limit = 1536;",
+                       exclusive_lock_sql[] =  "PRAGMA locking_mode=\"exclusive\";",
+
+                       fsync_sql[] =                   "PRAGMA synchronous=\"NORMAL\";",
+
+                       foreign_keys[] =                "PRAGMA foreign_keys=\"ON\";",
+
+                       enable_mmap[] =                 "PRAGMA mmap_size=268435456;",
+
+                       other_pragmas[] =               "PRAGMA read_uncommitted=\"ON\";"
+                                                                       "PRAGMA cache_size=262144";
        gboolean create = FALSE, has_lock = FALSE;
 
        flags = SQLITE_OPEN_READWRITE;
@@ -307,6 +316,8 @@ rspamd_sqlite3_open_or_create (rspamd_mempool_t *pool, const gchar *path, const
                has_lock = TRUE;
        }
 
+       sqlite3_enable_shared_cache (1);
+
        if ((rc = sqlite3_open_v2 (path, &sqlite,
                        flags, NULL)) != SQLITE_OK) {
 #if SQLITE_VERSION_NUMBER >= 3008000
@@ -393,6 +404,12 @@ rspamd_sqlite3_open_or_create (rspamd_mempool_t *pool, const gchar *path, const
                                sqlite3_errmsg (sqlite));
        }
 
+       if ((rc = sqlite3_exec (sqlite, other_pragmas, NULL, NULL, NULL)) !=
+                       SQLITE_OK) {
+               msg_warn_pool ("cannot execute tuning pragmas: %s",
+                               sqlite3_errmsg (sqlite));
+       }
+
        if (has_lock) {
                msg_debug_pool ("removing lock from %s", lock_path);
                rspamd_file_unlock (lock_fd, FALSE);