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Type:
Question
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Resolution: Incomplete
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Priority:
Major - P3
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Affects Version/s: 2.6.3
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Component/s: MapReduce
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while starting up the mongo shell I am getting warnings for four collections which may be a result of a failure few hours back on my primary server. It went down and I had to restart mongo service to bring it back. After doing some research online I figured we can delete this temporary collection created by map reduce.
But when i do a search for them in the mongo shell I am not able to find any results. So I would like to know if they exist then where can I view them or delete them and if they don't then why am I getting such warnings?
PFB logs
[initandlisten] WARNING: the collection 'db.tmp.mr.coll_9363_inc' lacks a unique index on _id. This index is needed for replication to function properly [initandlisten] To fix this, you need to create a unique index on _id. See http://dochub.mongodb.org/core/build-replica-set-indexes [initandlisten] WARNING: the collection 'db.tmp.mr.coll_9362_inc' lacks a unique index on _id. This index is needed for replication to function properly [initandlisten] To fix this, you need to create a unique index on _id. See http://dochub.mongodb.org/core/build-replica-set-indexes [initandlisten] WARNING: the collection 'db.tmp.mr.coll_9361_inc' lacks a unique index on _id. This index is needed for replication to function properly [initandlisten] To fix this, you need to create a unique index on _id. See http://dochub.mongodb.org/core/build-replica-set-indexes [initandlisten] WARNING: the collection 'db.tmp.mr.coll_9364_inc' lacks a unique index on _id. This index is needed for replication to function properly [initandlisten] To fix this, you need to create a unique index on _id. See http://dochub.mongodb.org/core/build-replica-set-indexes
I tried searching on mongo shell using
db.system.namespaces.find({name: '/mr/'})
got no results