如果我对问题的措词方式有误，请告诉我，这样下次我可以做得更好或编辑问题。
我做了什么。
使用rancher与Amazon EKS创建集群。
在“默认”名称空间中部署了一个nodejs应用。
使用默认设置从rancher应用程序目录中安装了MongoDB副本集。
当我使用mongodb://mongodb-replicaset:27017/tradeit_system?replicaSet=rs作为连接字符串时。
我得到了错误。
MongoNetworkError：第一次连接时无法连接到服务器[mongodb-replicaset-：27017] [MongoNetworkError：getaddrinfo ENOTFOUND mongodb-replicaset mongodb-replicaset：27017]
然后我在kubernetes documentation中读到，要访问其他命名空间中的服务，您还需要指定命名空间以及服务名称。
所以我这样做了mongodb://mongodb-replicaset.mongodb-replicaset:27017/tradeit_system?replicaSet=rss作为连接URL，我得到了错误。
MongoError：在副本集中找不到主副本或副本集名称无效
答案 0 :(得分：0)
因此，如果要访问它，还必须在主机字符串中包含名称空间，并引用不使用的群集域。
此服务管理的域的格式为：$（服务名称）。$（名称空间）.svc.cluster.local，其中“ cluster.local”是群集域。
因此，在您的情况下，您的pod DNS将写为：
` SELECT F.PBC_NUMBER, F.EY_SAMPLE, F.DISTRIBUTION_CENTER, F.SITE_ID, F.NIIN, MIN(F.CAT) AS CAT
FROM (
SELECT DISTINCT E.PBC_NUMBER, E.EY_SAMPLE, E.DISTRIBUTION_CENTER, E.SITE_ID, E.NIIN, CONCAT(E.TRX_DT, E.SEQ_TIME) AS CAT
FROM (
SELECT C.PBC_NUMBER, C.EY_SAMPLE, C.NIIN, C.DISTRIBUTION_CENTER, C.SITE_ID, C.TRX_DT, MIN(D.SEQ_TIME) AS SEQ_TIME
FROM (
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDRVENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HERV'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDJFENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID IN ('HEJF', 'HEJG')
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDCNENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018225' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HECN'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDDEENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018225' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'EGDE'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDWGENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018226' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HEWG'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDAAENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018233' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HEAA'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDDKENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'YKBK'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, MIN(B.TRX_DT) AS TRX_DT, A.NIIN, B.SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDPJENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'YYAL'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.SEQ_TIME) AS C
INNER JOIN
(
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDRVENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HERV'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDJFENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID IN ('HEJF', 'HEJG')
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDCNENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018225' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HECN'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDDEENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018225' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'EGDE'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDWGENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018226' AND '2018229') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HEWG'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDAAENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018233' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'HEAA'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDDKENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'YKBK'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT
UNION
SELECT A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, B.TRX_DT, A.NIIN, MIN(B.SEQ_TIME) AS SEQ_TIME
FROM KCA0001.TRANS12 A
LEFT OUTER JOIN DDPJENVR.ATR B
ON B.SITE_ID = A.SITE_ID AND B.NIIN = A.NIIN AND (B.TRX_DT BETWEEN '2018232' AND '2018236') AND B.DOC_ID IN ('D8A', 'D9A')
WHERE A.SITE_ID = 'YYAL'
GROUP BY A.PBC_NUMBER, A.EY_SAMPLE, A.DISTRIBUTION_CENTER, A.SITE_ID, A.NIIN, B.MED_STA_CD, B.TRX_DT) AS D
ON C.NIIN = D.NIIN AND C.SITE_ID = D.SITE_ID AND C.TRX_DT = D.TRX_DT AND C.SEQ_TIME = D.SEQ_TIME
GROUP BY C.PBC_NUMBER, C.EY_SAMPLE, C.TRX_DT, C.DISTRIBUTION_CENTER, C.SITE_ID, C.NIIN) AS E
) AS F
GROUP BY F.PBC_NUMBER, F.EY_SAMPLE, F.DISTRIBUTION_CENTER, F.SITE_ID, F.NIIN `