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b66f666267
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 ``` |
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|---|---|---|
| .. | ||
| compiler | ||
| config | ||
| consensus | ||
| core | ||
| crypto | ||
| encoding | ||
| interop | ||
| io | ||
| neotest | ||
| network | ||
| rpc | ||
| services | ||
| smartcontract | ||
| util | ||
| vm | ||
| wallet | ||