爲什麼我的MongoDB日誌滿足「getmore local.oplog.rs」？

這在我的MongoDB日誌中一遍又一遍地重複。一些注意事項：爲什麼我的MongoDB日誌滿足「getmore local.oplog.rs」？

的MongoDB 1.8.1在Ubuntu 11.04
初級副本中設置
64GB硬盤
5GB RAM
new Date(5610408224193773570)始終是相同的
verbose = true中註釋掉配置文件

難道是我的操作日誌太大，所以每次輔助查詢它需要4秒鐘？

Wed May 25 00:35:58 [dur] lsn set 1552362 
Wed May 25 00:36:02 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:06 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:11 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3884ms 
Wed May 25 00:36:15 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:19 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:23 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:27 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:31 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:35 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:39 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:43 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:47 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:51 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:55 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:36:58 [dur] lsn set 1582372 
Wed May 25 00:36:59 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:02 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:817 nreturned:1 3229ms 
Wed May 25 00:37:06 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3685ms 
Wed May 25 00:37:10 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:14 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:18 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:22 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:26 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:30 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:34 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:38 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:42 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:46 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:50 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:54 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:58 [conn14] getmore local.oplog.rs cid:265112601668423723 getMore: { ts: { $gte: new Date(5610408224193773570) } } bytes:20 nreturned:0 3979ms 
Wed May 25 00:37:58 [dur] lsn set 1612372

來源

2011-05-25 Seamus Abshere

Kristina Chodorow寫道：「...由於光標沒有死亡，時間不刷新光標可能會在您的oplog已滿並開始覆蓋舊的條目時死亡......」 – 2011-05-26 15:59:43