Anna Shaleva
b66f666267
core: ensure memcached Seek operation is properly cancelled
...
PR #2495 is not enought, the problem is reproduced during dump restore
with the stacktrace attached down below.
The reason is that SeekAsync starts goroutine that performs Seek
operation over private MemCachedStore. The goroutine iterates over
MemCachedStore's map without holding the lock (it's OK, because it's
private), whereas the main thread continues invocation and
performs writes to the same map. To fix that ic.Exec() needs to
wait until all goroutines are properly exited.
```
2022-05-17T08:34:50.430+0300 INFO persisted to disk {"blocks": 632, "keys": 16546, "headerHeight": 54091, "blockHeight": 54091, "took": "57.904387ms"}
fatal error: concurrent map iteration and map write
goroutine 218853 [running]:
runtime.throw({0xf56a31, 0x614968})
runtime/panic.go:1198 +0x71 fp=0xc0000ceae0 sp=0xc0000ceab0 pc=0x4357b1
runtime.mapiternext(0x0)
runtime/map.go:858 +0x4eb fp=0xc0000ceb50 sp=0xc0000ceae0 pc=0x40f82b
runtime.mapiterinit(0xc0000cec18, 0xc00359ca40, 0x1a)
runtime/map.go:848 +0x236 fp=0xc0000ceb70 sp=0xc0000ceb50 pc=0x40f2f6
github.com/nspcc-dev/neo-go/pkg/core/storage.(*MemCachedStore).prepareSeekMemSnapshot(0xc005315680, {{0xc00359ca40, 0x1a, 0x1a}, {0x0, 0x0, 0x0}, 0x0})
github.com/nspcc-dev/neo-go/pkg/core/storage/memcached_store.go:209 +0x24a fp=0xc0000ced88 sp=0xc0000ceb70 pc=0x823fca
github.com/nspcc-dev/neo-go/pkg/core/storage.(*MemCachedStore).Seek(0xd94ac0, {{0xc00359ca40, 0x1a, 0x1a}, {0x0, 0x0, 0x0}, 0x0}, 0x20)
github.com/nspcc-dev/neo-go/pkg/core/storage/memcached_store.go:156 +0x9b fp=0xc0000cee20 sp=0xc0000ced88 pc=0x82369b
github.com/nspcc-dev/neo-go/pkg/core/storage.performSeek({0x11c3330, 0xc002240dc0}, {0x11cb258, 0xc005315680}, {0x0, 0x0, 0x1}, {{0xc00359ca40, 0x1a, 0x1a}, ...}, ...)
github.com/nspcc-dev/neo-go/pkg/core/storage/memcached_store.go:304 +0x4b7 fp=0xc0000cef00 sp=0xc0000cee20 pc=0x824a37
github.com/nspcc-dev/neo-go/pkg/core/storage.(*MemCachedStore).SeekAsync.func1()
github.com/nspcc-dev/neo-go/pkg/core/storage/memcached_store.go:176 +0x16c fp=0xc0000cefe0 sp=0xc0000cef00 pc=0x823b8c
runtime.goexit()
runtime/asm_amd64.s:1581 +0x1 fp=0xc0000cefe8 sp=0xc0000cefe0 pc=0x468a41
created by github.com/nspcc-dev/neo-go/pkg/core/storage.(*MemCachedStore).SeekAsync
github.com/nspcc-dev/neo-go/pkg/core/storage/memcached_store.go:175 +0x1f6
goroutine 1 [runnable]:
github.com/nspcc-dev/neo-go/pkg/core/mpt.MapToMPTBatch.func1(0x4, 0x0)
github.com/nspcc-dev/neo-go/pkg/core/mpt/batch.go:28 +0x95
sort.doPivot_func({0xc000457878, 0xc003305bc0}, 0x0, 0x1a)
sort/zfuncversion.go:121 +0x46a
sort.quickSort_func({0xc000457878, 0xc003305bc0}, 0xc001014d20, 0x0, 0xc003304ff0)
sort/zfuncversion.go:143 +0x85
sort.Slice({0xd94800, 0xc001014d20}, 0x1a)
sort/slice.go:20 +0x9f
github.com/nspcc-dev/neo-go/pkg/core/mpt.MapToMPTBatch(0xc003304ff0)
github.com/nspcc-dev/neo-go/pkg/core/mpt/batch.go:28 +0x2e7
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).storeBlock(0xc000400280, 0xc000f178c0, 0xc005a04370)
github.com/nspcc-dev/neo-go/pkg/core/blockchain.go:1136 +0xfef
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).AddBlock(0xc000400280, 0xc000f178c0)
github.com/nspcc-dev/neo-go/pkg/core/blockchain.go:893 +0x755
github.com/nspcc-dev/neo-go/pkg/core/chaindump.Restore({0x11c3528, 0xc000400280}, 0xc350, 0x0, 0x4c221, 0xc000458710)
github.com/nspcc-dev/neo-go/pkg/core/chaindump/dump.go:73 +0x2ca
github.com/nspcc-dev/neo-go/cli/server.restoreDB(0xc000410000)
github.com/nspcc-dev/neo-go/cli/server/server.go:381 +0xcfa
github.com/urfave/cli.HandleAction({0xdbbfa0, 0x10a1078}, 0x7)
github.com/urfave/cli@v1.22.5/app.go:524 +0xa8
github.com/urfave/cli.Command.Run({{0xf32b10, 0x7}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0xf4a41d, 0x1c}, {0x0, ...}, ...}, ...)
github.com/urfave/cli@v1.22.5/command.go:173 +0x652
github.com/urfave/cli.(*App).RunAsSubcommand(0xc0001f7880, 0xc0001adce0)
github.com/urfave/cli@v1.22.5/app.go:405 +0x9ec
github.com/urfave/cli.Command.startApp({{0xf2e982, 0x2}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0xf41af9, 0x16}, {0x0, ...}, ...}, ...)
github.com/urfave/cli@v1.22.5/command.go:372 +0x6e9
github.com/urfave/cli.Command.Run({{0xf2e982, 0x2}, {0x0, 0x0}, {0x0, 0x0, 0x0}, {0xf41af9, 0x16}, {0x0, ...}, ...}, ...)
github.com/urfave/cli@v1.22.5/command.go:102 +0x808
github.com/urfave/cli.(*App).Run(0xc0001f76c0, {0xc00012e000, 0x8, 0x8})
github.com/urfave/cli@v1.22.5/app.go:277 +0x705
main.main()
./main.go:19 +0x33
goroutine 66 [select]:
github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0xc00027e1c0)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/util/buffer_pool.go:209 +0xcd
created by github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/util/buffer_pool.go:240 +0x19b
goroutine 67 [select]:
github.com/syndtr/goleveldb/leveldb.(*session).refLoop(0xc0002441e0)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/session_util.go:189 +0x5bb
created by github.com/syndtr/goleveldb/leveldb.newSession
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/session.go:93 +0x2de
goroutine 85 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc0001f7a40)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:91 +0x15e
created by github.com/syndtr/goleveldb/leveldb.openDB
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db.go:148 +0x4ef
goroutine 86 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mpoolDrain(0xc0001f7a40)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_state.go:101 +0xae
created by github.com/syndtr/goleveldb/leveldb.openDB
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db.go:149 +0x531
goroutine 87 [runnable]:
github.com/syndtr/goleveldb/leveldb.(*compaction).shouldStopBefore(0xc001787440, {0xc001890720, 0x29, 0x30})
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/session_compaction.go:272 +0x10a
github.com/syndtr/goleveldb/leveldb.(*tableCompactionBuilder).run(0xc0001ca140, 0xc002039638)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:461 +0x565
github.com/syndtr/goleveldb/leveldb.(*DB).compactionTransact(0xc0001f7a40, {0xf369f0, 0xb}, {0x11b9b60, 0xc0001ca140})
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:186 +0x22f
github.com/syndtr/goleveldb/leveldb.(*DB).tableCompaction(0xc0001f7a40, 0xc001787440, 0x0)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:580 +0xa30
github.com/syndtr/goleveldb/leveldb.(*DB).tableAutoCompaction(0xc0001f7a40)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:644 +0x39
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc0001f7a40)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:863 +0x43b
created by github.com/syndtr/goleveldb/leveldb.openDB
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db.go:155 +0x5a7
goroutine 88 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc0001f7a40)
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db_compaction.go:773 +0x119
created by github.com/syndtr/goleveldb/leveldb.openDB
github.com/syndtr/goleveldb@v1.0.1-0.20210305035536-64b5b1c73954/leveldb/db.go:156 +0x5e9
goroutine 78 [select]:
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).Run(0xc000400280)
github.com/nspcc-dev/neo-go/pkg/core/blockchain.go:615 +0x185
created by github.com/nspcc-dev/neo-go/cli/server.initBCWithMetrics
github.com/nspcc-dev/neo-go/cli/server/server.go:217 +0x23d
goroutine 79 [IO wait]:
internal/poll.runtime_pollWait(0x7ffb00b2aad8, 0x72)
runtime/netpoll.go:229 +0x89
internal/poll.(*pollDesc).wait(0xc00012e180, 0x4, 0x0)
internal/poll/fd_poll_runtime.go:84 +0x32
internal/poll.(*pollDesc).waitRead(...)
internal/poll/fd_poll_runtime.go:89
internal/poll.(*FD).Accept(0xc00012e180)
internal/poll/fd_unix.go:402 +0x22c
net.(*netFD).accept(0xc00012e180)
net/fd_unix.go:173 +0x35
net.(*TCPListener).accept(0xc000280090)
net/tcpsock_posix.go:140 +0x28
net.(*TCPListener).Accept(0xc000280090)
net/tcpsock.go:262 +0x3d
net/http.(*Server).Serve(0xc00027e380, {0x11bd4a8, 0xc000280090})
net/http/server.go:3001 +0x394
net/http.(*Server).ListenAndServe(0xc00027e380)
net/http/server.go:2930 +0x7d
github.com/nspcc-dev/neo-go/pkg/network/metrics.(*Service).Start(0xc000097d10)
github.com/nspcc-dev/neo-go/pkg/network/metrics/metrics.go:29 +0x115
created by github.com/nspcc-dev/neo-go/cli/server.initBCWithMetrics
github.com/nspcc-dev/neo-go/cli/server/server.go:218 +0x285
goroutine 9 [syscall]:
os/signal.signal_recv()
runtime/sigqueue.go:169 +0x98
os/signal.loop()
os/signal/signal_unix.go:24 +0x19
created by os/signal.Notify.func1.1
os/signal/signal.go:151 +0x2c
goroutine 8 [select]:
github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).notificationDispatcher(0xc000400280)
github.com/nspcc-dev/neo-go/pkg/core/blockchain.go:739 +0x2e7
created by github.com/nspcc-dev/neo-go/pkg/core.(*Blockchain).Run
github.com/nspcc-dev/neo-go/pkg/core/blockchain.go:612 +0xe5
goroutine 10 [chan receive]:
github.com/nspcc-dev/neo-go/cli/server.newGraceContext.func1()
github.com/nspcc-dev/neo-go/cli/server/server.go:117 +0x28
created by github.com/nspcc-dev/neo-go/cli/server.newGraceContext
github.com/nspcc-dev/neo-go/cli/server/server.go:116 +0xde
```
2022-05-18 07:35:48 +03:00
Anna Shaleva
c5c5e4c208
core: do not panic if transaction with empty script is being serialized
...
See https://github.com/nspcc-dev/neo-go/pull/2485#discussion_r872695786 .
Allows to avoid panic:
```
(18:28:29)[sergio@transient:morph-control-load]% downloads/neofs-adm morph -c configuration/config.yaml init --contracts downloads/neofs-contract-v0.15.1
Stage 1: transfer GAS to alphabet nodes.
Waiting for transactions to persist...
Stage 2: set notary and alphabet nodes in designate contract.
Stage 2: already performed.
Stage 3: deploy NNS contract.
NNS contract is already deployed.
Stage 4: deploy NeoFS contracts.
Alphabet contract #0 is already deployed.
Alphabet contract #1 is already deployed.
Alphabet contract #2 is already deployed.
Alphabet contract #3 is already deployed.
audit contract is already deployed.
balance contract is already deployed.
container contract is already deployed.
neofsid contract is already deployed.
netmap contract is already deployed.
proxy contract is already deployed.
reputation contract is already deployed.
subnet contract is already deployed.
Waiting for transactions to persist...
Stage 4.1: Transfer GAS to proxy contract.
Stage 5: register candidates.
Stage 6: transfer NEO to alphabet contracts.
Stage 7: set addresses in NNS.
NNS: Set alphabet0.neofs -> 2efeb27866fa774ec6bfb43babaadcc7b28f9bb7
NNS: Set alphabet1.neofs -> 5606bc6598a538ac59ded3caa842247b9b26097a
NNS: Set alphabet2.neofs -> 2a8308cfd2706ddd5f67adfdf3954c6836806b5d
NNS: Set alphabet3.neofs -> 718d0459e6787f0f13f1e1898bf2ce6bc4bb452d
NNS: Set audit.neofs -> 54d516b36c3380efa2b2f26bda300b6c6302b8e7
NNS: Set balance.neofs -> 72b3255944524cb822788a7542c9d06cba208c0c
NNS: Set container.neofs -> 20a20f4352a49f161eccb7d5a806fd46dcab81ea
NNS: Set neofsid.neofs -> 04a3a71535689b820093cefe7ae188ed7591ad27
NNS: Set netmap.neofs -> 9a34c97b2ba6bd986fd9140a9c3d59059fa430f4
NNS: Set proxy.neofs -> 4eba34ec016f8709a511b02765a1195e31a921ea
NNS: Set reputation.neofs -> 77b5b2cf596957cc05ca3d57503ef08d72792301
NNS: Set subnet.neofs -> b0abe16bc7f56b2e7e0694ae2b36207c6aaa8636
panic: error serializing *transaction.Transaction: transaction has no script
goroutine 1 [running]:
github.com/nspcc-dev/neo-go/pkg/io.GetVarSize({0xbf6240, 0xc0003634a0})
github.com/nspcc-dev/neo-go@v0.98.2/pkg/io/size.go:68 +0x6fd
github.com/nspcc-dev/neo-go/pkg/rpc/client.(*Client).AddNetworkFee(0xc0004080c0, 0xc0003634a0, 0x0, {0xc00000e248, 0x1, 0x93})
github.com/nspcc-dev/neo-go@v0.98.2/pkg/rpc/client/rpc.go:966 +0x6b
github.com/nspcc-dev/neo-go/pkg/rpc/client.(*Client).CreateTxFromScript(0x0, {0x0, 0x0, 0x0}, 0x1, 0x0, 0x0, {0xc0001c7990, 0x1, 0x1})
github.com/nspcc-dev/neo-go@v0.98.2/pkg/rpc/client/nep17.go:128 +0x345
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph.(*initializeContext).sendCommitteeTx(0xc00014a370, {0x0, 0x0, 0x0}, 0xc0016bcf30, 0x2)
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph/initialize.go:336 +0x131
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph.(*initializeContext).updateNNSGroup(0xc0001c7c88, {0x13, 0xd3, 0x6b, 0x85, 0x3e, 0x86, 0xbe, 0x77, 0xb7, ...}, ...)
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph/initialize_nns.go:89 +0x134
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph.(*initializeContext).setNNS(0xc00014a370)
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph/initialize_nns.go:74 +0x8c5
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph.initializeSideChainCmd(0x12a00e0, {0xc22a22, 0x4, 0x4})
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/morph/initialize.go:94 +0x2bc
github.com/spf13/cobra.(*Command).execute(0x12a00e0, {0xc00013a6c0, 0x4, 0x4})
github.com/spf13/cobra@v1.1.3/command.go:852 +0x60e
github.com/spf13/cobra.(*Command).ExecuteC(0x129c760)
github.com/spf13/cobra@v1.1.3/command.go:960 +0x3ad
github.com/spf13/cobra.(*Command).Execute(...)
github.com/spf13/cobra@v1.1.3/command.go:897
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules.Execute(...)
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/internal/modules/root.go:48
main.main()
github.com/nspcc-dev/neofs-node/cmd/neofs-adm/main.go:10 +0x25
zsh: exit 2 downloads/neofs-adm morph -c configuration/config.yaml init --contracts
```
2022-05-16 15:19:17 +03:00
