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SEGFAULT on query using var as func #1195

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TBotV63 opened this issue Jul 14, 2017 · 1 comment
Closed

SEGFAULT on query using var as func #1195

TBotV63 opened this issue Jul 14, 2017 · 1 comment

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@TBotV63
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TBotV63 commented Jul 14, 2017 •
edited by manishrjain
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Version

Dgraph version   : v0.7.7
Commit SHA-1     : 6d934ae
Commit timestamp : 2017-06-29 16:24:30 +1000
Branch           : HEAD

I am on arch and I installed dgraph with the script from get.dgraph.io

Schema:

mutation {
  schema {
    ipaddr: string @index(fulltext) .
    sid: int @index(int) .
    network: uid @reverse .
  }
}

When I execute the following query (from the local http gui) the server segfaults:

{
    user(func: eq(steamid, <steamid>), first: 1) { _uid_, N AS network }
    addr(func: eq(ipaddr, <ip>), first: 1) { _uid_ }
    netw(func: var(N)) {
        name
        _uid_
    }
}

It appears to have something to do with my (attempted) use of var while fiddling around with dgraph.

-debugmode Log:

Starting commit routine.
2017/07/15 00:40:20 worker.go:90: Worker listening at address: [::]:12345
2017/07/15 00:40:20 main.go:1088: grpc server started.
2017/07/15 00:40:20 main.go:1089: http server started.
2017/07/15 00:40:20 main.go:1090: Server listening on port 8080
Node with GroupID: 0, ID: 1
Node with GroupID: 1, ID: 1
Found hardstate: {Data:[] Metadata:{ConfState:{Nodes:[] XXX_unrecognized:[]} Index:0 Term:0 XXX_unrecognized:[]} XXX_unrecognized:[]}
Found Snapshot: {Data:[9 1 0 0 0 0 0 0 0 16 1 26 15 108 111 99 97 108 104 111 115 116 58 49 50 51 52 53] Metadata:{ConfState:{Nodes:[1] XXX_unrecognized:[]} Index:6 Term:5 XXX_unrecognized:[]} XXX_unrecognized:[]}
Group 0 found 23 entries
Found hardstate: {Data:[9 1 0 0 0 0 0 0 0 16 1 26 15 108 111 99 97 108 104 111 115 116 58 49 50 51 52 53] Metadata:{ConfState:{Nodes:[1] XXX_unrecognized:[]} Index:6 Term:5 XXX_unrecognized:[]} XXX_unrecognized:[]}
Restarting node for group: 0
Group 1 found 0 entries
Restarting node for group: 1
raft2017/07/15 00:40:20 INFO: 1 became follower at term 5
raft2017/07/15 00:40:20 INFO: 1 became follower at term 5
raft2017/07/15 00:40:20 INFO: newRaft 1 [peers: [], term: 5, commit: 23, applied: 0, lastindex: 23, lastterm: 5]
raft2017/07/15 00:40:20 INFO: newRaft 1 [peers: [1], term: 5, commit: 6, applied: 6, lastindex: 6, lastterm: 5]
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: true dead: false
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:23}
----------------------------
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:23}]
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: false dead: false
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:4}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:9}
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: false dead: false
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: true dead: false
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:23}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:4}]
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
----------------------------
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: false dead: false
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:7}
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:13}
----------------------------
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: false dead: false
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}
----------------------------
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:3}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:6}
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: true dead: false
----------------------------
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:16}
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: false dead: false
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:21}
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: false dead: false
----------------------------
2017/07/15 00:40:20 draft.go:459: group: 0 Addr: "localhost:12345" leader: false dead: false
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: true dead: false
2017/07/15 00:40:20 draft.go:459: group: 1 Addr: "localhost:12345" leader: true dead: false
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:7}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:4}]
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:5}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:15}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:12}
----------------------------
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:18}
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:11}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:22}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:10}
----------------------------
----------------------------
====== APPLYING MEMBERSHIP UPDATE: {NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:17}
----------------------------
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:7}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:5}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:7}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:3}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:6}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:9}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:16}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:21}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:20}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:21}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:15}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:21}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:12}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:21}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:18}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:13}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:18}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:11}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:18}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:11}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:22}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:10}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:11}]
Group: 0. List: [{NodeId:1 Addr:localhost:12345 Leader:true RaftIdx:17}]
Group: 1. List: [{NodeId:1 Addr:localhost:12345 Leader:false RaftIdx:10}]
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0xc0028f]

goroutine 52 [running]:
github.com/dgraph-io/dgraph/algo.IntersectWith(0xc420220bc0, 0x0, 0xc420220bc0)
        /home/travis/gopath/src/github.com/dgraph-io/dgraph/algo/uidlist.go:44 +0x2f
github.com/dgraph-io/dgraph/query.ProcessGraph(0x173ef40, 0xc4202a5140, 0xc420087b00, 0x0, 0xc42048c300)
        /home/travis/gopath/src/github.com/dgraph-io/dgraph/query/query.go:1620 +0x2c41
created by github.com/dgraph-io/dgraph/query.ProcessQuery
        /home/travis/gopath/src/github.com/dgraph-io/dgraph/query/query.go:1254 +0x729
@TBotV63 TBotV63 changed the title SEGFAULT on query SEGFAULT on query using var as func Jul 14, 2017
@TBotV63
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TBotV63 commented Jul 15, 2017

Duh, updating fixed it.

@TBotV63 TBotV63 closed this as completed Jul 15, 2017
jarifibrahim pushed a commit that referenced this issue Mar 16, 2020
Update badger to commit 91c31ebe8c22 (#4935)
cc3c5cd 
Important changes
```
 - Changes to overlap check in compaction.
 - Remove 'this entry should've been caught' log.
 - Changes to write stalling on levels 0 and 1.
 - Compression is disabled by default in Badger.
 - Bloom filter caching in a separate ristretto cache.
 - Compression/Encryption in background.
 - Disable cache by default in badger.
```

The following new changes are being added from badger
`git log ab4352b00a17...91c31ebe8c22`

```
91c31eb Disable cache by default (#1257)
eaf64c0 Add separate cache for bloom filters (#1260)
1bcbefc Add BypassDirLock option (#1243)
c6c1e5e Add support for watching nil prefix in subscribe API (#1246)
b13b927 Compress/Encrypt Blocks in the background (#1227)
bdb2b13 fix changelog for v2.0.2 (#1244)
8dbc982 Add Dkron to README (#1241)
3d95b94 Remove coveralls from Travis Build(#1219)
5b4c0a6 Fix ValueThreshold for in-memory mode (#1235)
617ed7c Initialize vlog before starting compactions in db.Open (#1226)
e908818 Update CHANGELOG for Badger 2.0.2 release. (#1230)
bce069c Fix int overflow for 32bit (#1216)
e029e93 Remove ExampleDB_Subscribe Test (#1214)
8734e3a Add missing package to README for badger.NewEntry (#1223)
78d405a Replace t.Fatal with require.NoError in tests (#1213)
c51748e Fix flaky TestPageBufferReader2 test (#1210)
eee1602 Change else-if statements to idiomatic switch statements. (#1207)
3e25d77 Rework concurrency semantics of valueLog.maxFid (#1184) (#1187)
4676ca9 Add support for caching bloomfilters (#1204)
c3333a5 Disable compression and set ZSTD Compression Level to 1 (#1191)
0acb3f6 Fix L0/L1 stall test (#1201)
7e5a956 Support disabling the cache completely. (#1183) (#1185)
82381ac Update ristretto to version  8f368f2 (#1195)
3747be5 Improve write stalling on level 0 and 1
5870b7b Run all tests on CI (#1189)
01a00cb Add Jaegar to list of projects (#1192)
9d6512b Use fastRand instead of locked-rand in skiplist (#1173)
2698bfc Avoid sync in inmemory mode (#1190)
2a90c66 Remove the 'this entry should've caught' log from value.go (#1170)
0a06173 Fix checkOverlap in compaction (#1166)
0f2e629 Fix windows build (#1177)
03af216 Fix commit sha for WithInMemory in CHANGELOG. (#1172)
23a73cd Update CHANGELOG for v2.0.1 release. (#1181)
465f28a Cast sz to uint32 to fix compilation on 32 bit (#1175)
ea01d38 Rename option builder from WithInmemory to WithInMemory. (#1169)
df99253 Remove ErrGCInMemoryMode in CHANGELOG. (#1171)
8dfdd6d Adding changes for 2.0.1 so far (#1168)
```
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