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1969-12-31 23:50:00

java連結MongoDB處理大量資料時經常碰到cursor not found 的異常,其實是逾時所緻

Exception in thread "main" com.mongodb.MongoException$CursorNotFound: cursor not found on server

at com.mongodb.DBApiLayer$Result.init(DBApiLayer.java:379)

at com.mongodb.DBApiLayer$Result._advance(DBApiLayer.java:426)

at com.mongodb.DBApiLayer$Result.hasNext(DBApiLayer.java:408)

at com.mongodb.DBCursor._hasNext(DBCursor.java:495)

at com.mongodb.DBCursor.hasNext(DBCursor.java:515)

解決方法很簡單：

DBCursor cursor = collection.find(condtion);

cursor.addOption(com.mongodb.Bytes.QUERYOPTION_NOTIMEOUT);

隻要在查詢的DBCursor添加com.mongodb.Bytes.QUERYOPTION_NOTIMEOUT就解決！

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