Error during SubscribeForUpdates for prefix

Report a Dgraph Bug

What version of Dgraph are you using?

Dgraph Version
$ dgraph version
 
Dgraph version   : v21.03.0                                                                                            
Dgraph codename  : rocket                                                                                              
Dgraph SHA-256   : b4e4c77011e2938e9da197395dbce91d0c6ebb83d383b190f5b70201836a773f                                    
Commit SHA-1     : a77bbe8ae                                                                                           
Commit timestamp : 2021-04-07 21:36:38 +0530                                                                           
Branch           : HEAD                                                                                                
Go version       : go1.16.2                                                                                            
jemalloc enabled : true

Have you tried reproducing the issue with the latest release?

Yes, Iā€™m using it.

What is the hardware spec (RAM, OS)?

  • Fedora 33
  • 16 GB RAM
  • 256 GB HD
  • AMD Ryzen 7 3700X 8-Core Processor

Steps to reproduce the issue (command/config used to run Dgraph).

First, do the normal installation:

curl -sSf https://get.dgraph.io | bash

Second, try to start the alpha server:

dgraph alpha

Errors and logs appers:

I0608 10:56:58.857075  326642 run.go:756] x.Config: {PortOffset:0 Limit:mutations=allow; query-edge=1000000; normalize-node=10000; mutations-nquad=1000000; disallow-drop=false; txn-abort-after=5m; query-timeout=0ms; max-retries=-1; max-pending-queries=10000 LimitMutationsNquad:1000000 LimitQueryEdge:1000000 BlockClusterWideDrop:false LimitNormalizeNode:10000 QueryTimeout:0s MaxRetries:-1 GraphQL:extensions=true; poll-interval=1s; lambda-url=; introspection=true; debug=false GraphQLDebug:false}
I0608 10:56:58.857114  326642 run.go:757] x.WorkerConfig: {TmpDir:t ExportPath:export Trace:ratio=0.01; jaeger=; datadog= MyAddr: ZeroAddr:[localhost:5080] TLSClientConfig:<nil> TLSServerConfig:<nil> Raft:snapshot-after-duration=30m; pending-proposals=256; idx=; group=; learner=false; snapshot-after-entries=10000 Badger:{Dir: ValueDir: SyncWrites:false NumVersionsToKeep:1 ReadOnly:false Logger:0xc0004169b0 Compression:1 InMemory:false MetricsEnabled:true NumGoroutines:8 MemTableSize:67108864 BaseTableSize:2097152 BaseLevelSize:10485760 LevelSizeMultiplier:10 TableSizeMultiplier:2 MaxLevels:7 VLogPercentile:0 ValueThreshold:1048576 NumMemtables:5 BlockSize:4096 BloomFalsePositive:0.01 BlockCacheSize:697932185 IndexCacheSize:375809638 NumLevelZeroTables:5 NumLevelZeroTablesStall:15 ValueLogFileSize:1073741823 ValueLogMaxEntries:1000000 NumCompactors:4 CompactL0OnClose:false LmaxCompaction:false ZSTDCompressionLevel:0 VerifyValueChecksum:false EncryptionKey:[] EncryptionKeyRotationDuration:240h0m0s BypassLockGuard:false ChecksumVerificationMode:0 DetectConflicts:true NamespaceOffset:-1 managedTxns:false maxBatchCount:0 maxBatchSize:0 maxValueThreshold:0} WhiteListedIPRanges:[] StrictMutations:false AclEnabled:false HmacSecret:**** AbortOlderThan:5m0s ProposedGroupId:0 StartTime:2021-06-08 10:56:58.522106251 -0300 -03 m=+0.134630109 Ludicrous:enabled=false; concurrency=2000 LudicrousEnabled:false Security:token=; whitelist= EncryptionKey:**** LogRequest:0 HardSync:false Audit:false}
I0608 10:56:58.857161  326642 run.go:758] worker.Config: {PostingDir:p WALDir:w MutationsMode:0 AuthToken: HmacSecret:**** AccessJwtTtl:0s RefreshJwtTtl:0s CachePercentage:0,65,35 CacheMb:1024 Audit:<nil> ChangeDataConf:file=; kafka=; sasl_user=; sasl_password=; ca_cert=; client_cert=; client_key=;}
I0608 10:56:58.858837  326642 storage.go:125] Init Raft Storage with snap: 0, first: 1, last: 0
I0608 10:56:58.858873  326642 server_state.go:141] Opening postings BadgerDB with options: {Dir:p ValueDir:p SyncWrites:false NumVersionsToKeep:2147483647 ReadOnly:false Logger:0x32c8038 Compression:1 InMemory:false MetricsEnabled:true NumGoroutines:8 MemTableSize:67108864 BaseTableSize:2097152 BaseLevelSize:10485760 LevelSizeMultiplier:10 TableSizeMultiplier:2 MaxLevels:7 VLogPercentile:0 ValueThreshold:1048576 NumMemtables:5 BlockSize:4096 BloomFalsePositive:0.01 BlockCacheSize:697932185 IndexCacheSize:375809638 NumLevelZeroTables:5 NumLevelZeroTablesStall:15 ValueLogFileSize:1073741823 ValueLogMaxEntries:1000000 NumCompactors:4 CompactL0OnClose:false LmaxCompaction:false ZSTDCompressionLevel:0 VerifyValueChecksum:false EncryptionKey:[] EncryptionKeyRotationDuration:240h0m0s BypassLockGuard:false ChecksumVerificationMode:0 DetectConflicts:false NamespaceOffset:1 managedTxns:false maxBatchCount:0 maxBatchSize:0 maxValueThreshold:0}
I0608 10:56:58.992487  326642 log.go:34] All 0 tables opened in 0s
I0608 10:56:58.994101  326642 log.go:34] Discard stats nextEmptySlot: 0
I0608 10:56:58.994114  326642 log.go:34] Set nextTxnTs to 0
I0608 10:56:58.995356  326642 groups.go:99] Current Raft Id: 0x0
I0608 10:56:58.995372  326642 groups.go:115] Sending member request to Zero: addr:"localhost:7080" 
I0608 10:56:58.995504  326642 worker.go:111] Worker listening at address: [::]:7080
I0608 10:56:58.996166  326642 run.go:568] Bringing up GraphQL HTTP API at 0.0.0.0:8080/graphql
I0608 10:56:58.996173  326642 run.go:569] Bringing up GraphQL HTTP admin API at 0.0.0.0:8080/admin
E0608 10:56:58.996171  326642 groups.go:1177] Error during SubscribeForUpdates for prefix "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15dgraph.graphql.schema\x00": Unable to find any servers for group: 1. closer err: <nil>
I0608 10:56:58.996181  326642 run.go:596] gRPC server started.  Listening on port 9080
I0608 10:56:58.996298  326642 run.go:597] HTTP server started.  Listening on port 8080
I0608 10:56:59.095676  326642 pool.go:162] CONNECTING to localhost:5080
W0608 10:56:59.096715  326642 pool.go:267] Connection lost with localhost:5080. Error: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp [::1]:5080: connect: connection refused"
E0608 10:56:59.997312  326642 groups.go:1177] Error during SubscribeForUpdates for prefix "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15dgraph.graphql.schema\x00": Unable to find any servers for group: 1. closer err: <nil>
E0608 10:57:00.997743  326642 groups.go:1177] Error during SubscribeForUpdates for prefix "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15dgraph.graphql.schema\x00": Unable to find any servers for group: 1. closer err: <nil>
E0608 10:57:01.997929  326642 groups.go:1177] Error during SubscribeForUpdates for prefix "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15dgraph.graphql.schema\x00": Unable to find any servers for group: 1. closer err: <nil>
E0608 10:57:02.998152  326642 groups.go:1177] Error during SubscribeForUpdates for prefix "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15dgraph.graphql.schema\x00": Unable to find any servers for group: 1. closer err: <nil>
I0608 10:57:03.997210  326642 admin.go:824] Error reading GraphQL schema: Please retry again, server is not ready to accept requests.

Expected behaviour and actual result.

To just run the alpha server for development tests without using docker environment. Detail: with docker, the services just works fine.


Have you started the zero instance? Is it reacheble?

1 Like

No.
Now the db works. Thanks.

Issue closed.