diff --git a/server/web3dbspider/session.js b/server/web3dbspider/session.js
index ec8d71a..af251de 100644
--- a/server/web3dbspider/session.js
+++ b/server/web3dbspider/session.js
@@ -65,23 +65,6 @@ class Session {
     return utils.jsonEncode(this.req.query);
   }
 
-  async getMarketDb() {
-    const idx = 0;
-    const dbKey = 'MarketDb' + idx;
-    if (this.useConns[dbKey]) {
-      return this.useConns[dbKey];
-    }
-    const {err, conn} = await app.getDbConn(dbKey);
-    if (err) {
-      console.log(err);
-    }
-    //console.log(new Error().stack);
-    if (!err && conn) {
-      this.useConns[dbKey] = conn;
-    }
-    return conn;
-  }
-
   createModel(name) {
     return modelsFactory.create(name, this);
   }
@@ -106,23 +89,6 @@ class Session {
     return metaFactory[name](this, ...args);
   }
 
-  async marketConn(method, ...args) {
-    const conn = await this.getMarketDb();
-    const ret = await conn[method](...args);
-    if (ret.err){
-      this.throwError(500, 'internal error');
-      log.error(ret.err);
-      return;
-    }
-    if (utils.hasKey(ret, 'row')) {
-      return ret['row'];
-    } else if (utils.hasKey(ret, 'rows')) {
-      return ret['rows'];
-    } else {
-      return null;
-    }
-  }
-
 }
 
 module.exports = Session;