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-rw-r--r--client/changes/feature_sqlite-optimization-pragmas1
-rw-r--r--client/src/leap/soledad/client/sqlcipher.py20
2 files changed, 21 insertions, 0 deletions
diff --git a/client/changes/feature_sqlite-optimization-pragmas b/client/changes/feature_sqlite-optimization-pragmas
new file mode 100644
index 00000000..7a35f005
--- /dev/null
+++ b/client/changes/feature_sqlite-optimization-pragmas
@@ -0,0 +1 @@
+ o Add sync=off and tem_store=mem to soledad client, for optimization.
diff --git a/client/src/leap/soledad/client/sqlcipher.py b/client/src/leap/soledad/client/sqlcipher.py
index 43c871c3..ef059e9b 100644
--- a/client/src/leap/soledad/client/sqlcipher.py
+++ b/client/src/leap/soledad/client/sqlcipher.py
@@ -190,6 +190,10 @@ class SQLCipherDatabase(sqlite_backend.SQLitePartialExpandDatabase):
self._set_crypto_pragmas(
self._db_handle, password, raw_key, cipher, kdf_iter,
cipher_page_size)
+ if os.environ.get('LEAP_SQLITE_NOSYNC'):
+ self._pragma_synchronous_off(self._db_handle)
+ if os.environ.get('LEAP_SQLITE_MEMSTORE'):
+ self._pragma_mem_temp_store(self._db_handle)
self._real_replica_uid = None
self._ensure_schema()
self._crypto = crypto
@@ -734,6 +738,22 @@ class SQLCipherDatabase(sqlite_backend.SQLitePartialExpandDatabase):
# XXX change passphrase param!
db_handle.cursor().execute('PRAGMA rekey = "x\'%s"' % passphrase)
+ @classmethod
+ def _pragma_synchronous_off(cls, db_handle):
+ """
+ Change the setting of the "synchronous" flag to OFF.
+ """
+ logger.debug("SQLCIPHER: SETTING SYNCHRONOUS OFF")
+ db_handle.cursor().execute('PRAGMA synchronous=OFF')
+
+ @classmethod
+ def _pragma_mem_temp_store(cls, db_handle):
+ """
+ Use a in-memory store for temporary tables.
+ """
+ logger.debug("SQLCIPHER: SETTING TEMP_STORE MEMORY")
+ db_handle.cursor().execute('PRAGMA temp_store=MEMORY')
+
# Extra query methods: extensions to the base sqlite implmentation.
def get_count_from_index(self, index_name, *key_values):