prserv: Ensure data is committed

In exclusive mode, we need to complete the transaction for writes to make
it to the database. Therefore add sync calls to ensure this happens.

Autocommit mode is significantly (100 times) slower so caching the
data is of significant benefit.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/prserv/db.py b/lib/prserv/db.py
index 559935544af9e98904d91be5e2a779a4b8cdd5f2..86eafe338c432792bdf11e01b4506ba7fbf04a12 100644 (file)
--- a/lib/prserv/db.py
+++ b/lib/prserv/db.py
@@ -43,6 +43,10 @@ class PRTable(object):
                     continue
                 raise exc
 
+    def sync(self):
+        self.conn.commit()
+        self._execute("BEGIN EXCLUSIVE TRANSACTION")
+
     def _getValueHist(self, version, pkgarch, checksum):
         data=self._execute("SELECT value FROM %s WHERE version=? AND pkgarch=? AND checksum=?;" % self.table,
                            (version, pkgarch, checksum))

diff --git a/lib/prserv/serv.py b/lib/prserv/serv.py
index a9c7ed104c10d4975349d7920080b62f4f9415a3..7864594bb6cf34caf11a581c282d9b70b2bb37a3 100644 (file)
--- a/lib/prserv/serv.py
+++ b/lib/prserv/serv.py
@@ -74,7 +74,7 @@ class PRServer(SimpleXMLRPCServer):
             except:
                 self.handle_error(request, client_address)
                 self.shutdown_request(request)
-
+                self.table.sync()
 
     def process_request(self, request, client_address):
         self.requestqueue.put((request, client_address))
@@ -120,6 +120,7 @@ class PRServer(SimpleXMLRPCServer):
         while not self.quit:
             self.handle_request()
 
+        self.table.sync()
         logger.info("PRServer: stopping...")
         self.server_close()
         return