A small fix

Fix of .drone.jsonnet

Author: mariadb-SergeyZefirov

.drone.jsonnet

@@ -693,7 +693,7 @@ local Pipeline(branch, platform, event, arch='amd64', server='10.6-enterprise')
                SCCACHE_BUCKET: 'cs-sccache',
                SCCACHE_REGION: 'us-east-1',
                SCCACHE_S3_USE_SSL: 'true',
-               SCCACHE_S3_KEY_PREFIX: branch + server + arch + '${DRONE_PULL_REQUEST}',
+               SCCACHE_S3_KEY_PREFIX: result + branch + server + arch + '${DRONE_PULL_REQUEST}',
                //SCCACHE_ERROR_LOG: '/tmp/sccache_log.txt',
                //SCCACHE_LOG: 'debug',
              },

writeengine/client/we_clients.cpp

@@ -501,9 +501,10 @@ void WEClients::write(const messageqcpp::ByteStream& msg, uint32_t connection)
     fPmConnections[connection]->write(msg);
   else
   {
-    ostringstream os;
-    os << "Lost connection to WriteEngineServer on pm" << connection;
-    throw runtime_error(os.str());
+    // new behavior: connection client is nullptr means it is read-only.
+//    ostringstream os;
+//    os << "Lost connection to WriteEngineServer on pm" << connection;
+//    throw runtime_error(os.str());
   }
 }