mongodbレプリセットが非常に遅くなる原因は何ですか？

Question

これは、プライマリ・ノードへの最初の同期である：

2017-03-03T02:26:22.035+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 283940/5543302 5% (documents copied) 
2017-03-03T02:36:17.984+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 564884/5543302 10% (documents copied) 
2017-03-03T02:48:31.792+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 849813/5543302 15% (documents copied) 
2017-03-03T03:02:14.751+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 1138030/5543302 20% (documents copied) 
2017-03-03T03:14:10.938+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 1474370/5543302 26% (documents copied) 
2017-03-03T03:32:53.645+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 1846885/5543302 33% (documents copied) 
2017-03-03T03:46:50.211+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 2207922/5543302 39% (documents copied) 
2017-03-03T03:56:41.963+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 2568851/5543302 46% (documents copied) 
2017-03-03T04:08:13.513+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 2921563/5543302 52% (documents copied) 
2017-03-03T04:27:33.926+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 3230454/5543302 58% (documents copied) 
2017-03-03T05:09:17.002+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 3408499/5543302 61% (documents copied) 
2017-03-03T05:27:33.817+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 3531029/5543302 63% (documents copied) 
2017-03-03T06:12:44.765+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 3747209/5543302 67% (documents copied) 
2017-03-03T06:49:28.263+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 3894147/5543302 70% (documents copied) 
2017-03-03T07:46:30.452+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 4001247/5543302 72% (documents copied) 
2017-03-03T08:06:56.895+0100 I -  [repl writer worker 3] prodbase.offer collection clone progress: 4108649/5543302 74% (documents copied) 

すべてのサーバーは、それらの間の250メガビット/秒と同じデータセンター内にあります。

Answer 1

提案：最初の同期

と

ビッグ改善をバージョン3.4.xへ移動それ以外の場合は、すべての主要

にあなたが持っているどのくらいのデータに依存し、これを回避するための別の解決策は、

にあります

1. バックアッププライマリセカンダリ
へ
2. が主を復元
3. レプリケーションを構成して開始します。