Encountered FDB_RESULT_KEY_NOT_FOUND error in indexer logs after which indexer panic observed

Steps:
1. Cluster configured.
2. 1000 items loaded in default bucket.
3. Changed projector.dcp.numConnections to 16
4. Tried creating indexes.

Index creation passed but UI didn't show any index created.
Following error was found in indexer.log:
[Error] EmbeddedServer.boostrap: error : Server Config Error : Key = LastCommittedTxid : FDB_RESULT_KEY_NOT_FOUND

After which There was a panic trace:
panic: close of nil channel

goroutine 1 [running]:
panic(0xd1d5e0, 0xc822164340)
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.6/go/src/runtime/panic.go:464 +0x3e6 fp=0xc822126ca8 sp=0xc822126c28
runtime.closechan(0x0)
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.6/go/src/runtime/chan.go:294 +0x75 fp=0xc822126cf8 sp=0xc822126ca8
github.com/couchbase/indexing/secondary/manager.(*IndexManager).Close(0xc82010f3f0)
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/manager/manager.go:271 +0x143 fp=0xc822126d20 sp=0xc822126cf8
github.com/couchbase/indexing/secondary/manager.NewIndexManagerInternal(0x7f70dbf8ebf8, 0xc8221f2f00, 0x7f70dbf8ec98, 0xc8222456e0, 0xc82013a870, 0xc82010f3f0, 0x7f70dc015fe8, 0xc8220f4480)
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/manager/manager.go:185 +0xcec fp=0xc822127060 sp=0xc822126d20
github.com/couchbase/indexing/secondary/manager.NewIndexManager(0x7f70dbf8ebf8, 0xc8221f2f00, 0xc82013a870, 0x7f70dbf8ebf8, 0x0, 0x0)
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/manager/manager.go:122 +0x222 fp=0xc822127138 sp=0xc822127060
github.com/couchbase/indexing/secondary/indexer.NewClustMgrAgent(0xc82000ed80, 0xc82000e9c0, 0xc82013a870, 0x0, 0x0, 0x0, 0x0)
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/indexer/cluster_manager_agent.go:71 +0x7e1 fp=0xc8221272e8 sp=0xc822127138
github.com/couchbase/indexing/secondary/indexer.NewIndexer(0xc8200183c0, 0x0, 0x0, 0x0, 0x0)
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/indexer/indexer.go:240 +0x20d1 fp=0xc822127c10 sp=0xc8221272e8
main.main()
/home/couchbase/jenkins/workspace/watson-unix/goproj/src/github.com/couchbase/indexing/secondary/cmd/indexer/main.go:153 +0x15b5 fp=0xc822127f30 sp=0xc822127c10
runtime.main()
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.6/go/src/runtime/proc.go:188 +0x2b0 fp=0xc822127f80 sp=0xc822127f30
runtime.goexit()
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.6/go/src/runtime/asm_amd64.s:1998 +0x1 fp=0xc822127f88 sp=0xc822127f80

goroutine 17 [syscall, locked to thread]:
runtime.goexit()
/home/couchbase/.cbdepscache/exploded/x86_64/go-1.6/go/src/runtime/asm_amd64.s:1998 +0x1 fp=0xc82003efb8 sp=0xc82003efb0

Logs: https://s3.amazonaws.com/bugdb/jira/mb-007/dcp_numConnections.tar