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Type:
Bug
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Resolution: Done
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Priority:
Blocker - P1
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Affects Version/s: None
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Component/s: Cloud Manager
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Labels:None
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Environment:OSX 10.9.4
MongoDB 2.6.3
I have just tried to run through the instructions for restoring a replica set from a downloaded MMS backup (http://mms.mongodb.com/help/tutorial/restore-replica-set/).
I am running MongoDB 2.6.3 on OSX 10.9.4.
I have started a restore job on my MMS group, and then downloaded the tar.gz file via HTTPS.
I have created a new empty replica-set, then I follow step 1, "Shut down the entire replica set".
I then follow steps 2 through to 4. However, when I attempt to run the seedSecondary.sh script in step 4, this fails with:
./seedSecondary.sh 27017 1.8 MongoDB shell version: 2.6.3 connecting to: 127.0.0.1:27017/test 2014-07-31T13:15:07.883+1000 collection already exists
The script appears to be attempting to create the oplog.rs collection, which I believe already exists in my replicaset.
I increased my logging to logLevel2, and then ran that command again to confirm this:
2014-07-31T13:20:44.663+1000 [initandlisten] connection accepted from 127.0.0.1:62066 #6 (2 connections now open)
2014-07-31T13:20:44.663+1000 [conn6] run command admin.$cmd { whatsmyuri: 1 }
2014-07-31T13:20:44.664+1000 [conn6] command admin.$cmd command: whatsmyuri { whatsmyuri: 1 } ntoreturn:1 keyUpdates:0 numYields:0 reslen:62 0ms
2014-07-31T13:20:44.665+1000 [conn6] run command local.$cmd { create: "oplog.rs", capped: true, size: 1932735283.2 }
2014-07-31T13:20:44.665+1000 [conn6] create collection local.oplog.rs { capped: true, size: 1932735283.2 }
2014-07-31T13:20:44.665+1000 [conn6] command local.$cmd command: create { create: "oplog.rs", capped: true, size: 1932735283.2 } keyUpdates:0 numYields:0 locks(micros) w:163 reslen:75 0ms
2014-07-31T13:20:44.667+1000 [conn6] SocketException: remote: 127.0.0.1:62066 error: 9001 socket exception [CLOSED] server [127.0.0.1:62066]
2014-07-31T13:20:44.667+1000 [conn6] end connection 127.0.0.1:62066 (1 connection now open)
I then delete all of my local database files (local.0, local.1 and local.ns), and retry step 4:
./seedSecondary.sh 27017 1.8
MongoDB shell version: 2.6.3
connecting to: 127.0.0.1:27017/test
WriteResult({ "nInserted" : 1 })
Step 4 now appears to be successful (although I'm curious if there's a better way of working around this). I I continue with step 5 and step 6, however, I seem to hit an error at step 6 when it asks me to run rs.initiate():
mongo MongoDB shell version: 2.6.3 connecting to: test Server has startup warnings: 2014-07-31T13:30:57.659+1000 [initandlisten] 2014-07-31T13:30:57.660+1000 [initandlisten] ** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000 > rs.initiate() { "ok" : 0, "errmsg" : "local.oplog.rs is not empty on the initiating member. cannot initiate." }
Would it be possible to fix the instructions in step 1 as well as step 6 please?