PostTxOnChainFailed happens sometimes on concurrent Init and Fanout

[uhbif19]

Context & versions

• hydra-node is dockerized ghcr.io/input-output-hk/hydra-node:0.9.0
• Hydra API used is https://github.com/input-output-hk/hydra with tag df3f84863028ec4ab5f09b6ac2423b10cbc8d988
  But we do construct commands JSONs ourselves: https://github.com/mlabs-haskell/hydra-auction/blob/staging/src/HydraAuction/Hydra/Interface.hs#L25

Steps to reproduce

I get PostTxOnChainFailed couple of times on Init and Fanout. I think this may be related to that this commands are send concurrently. But I could not reproduce that in tests (in which I am sending concurrent requests just the same) or any other reliable way.

But our probable usecase is this:

1. Send Init command concurrently from three hydra-node clients

(or Fanout - seems like the same error ocures)

Actual behavior

1. Returns PostTxOnChainFailed to all hydra-node clients

Log for one of hydra-nodes, cut after fail (for Fanout case): hydra-1-cut.txt.gz

Expected behavior

1. Perform first Init command
2. Return HeadIsInitializing
3. Return CommandFailed for second and third Init command

[pgrange]

The logs are about the Fanout case so we only analyse this case in the following.

PostTxOnChainFailed is raised in HeadLogic in case of a PostTxError. The postTxError is returned to the client.

Looking at the log to find what are the postTxError:

#> grep postTxError hydra-1-cut-2.txt
{"timestamp":"2023-04-20T23:33:44.269539705Z","threadId":80,"namespace":"HydraNode-\"1\"","message":{"directChain":{"postTxError":{"failureReason":"HardForkApplyTxErrFromEra S (S (S (S (S (Z (WrapApplyTxErr {unwrapApplyTxErr = ApplyTxError [UtxowFailure (FromAlonzoUtxowFail (NonOutputSupplimentaryDatums (fromList [SafeHash \"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5\"]) (fromList []))),UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0])),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)))])))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (ValueNotConservedUTxO (Value 96471200 (fromList [(PolicyID {policyID = ScriptHash \"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355\"},fromList [(14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215,-1),(4879647261486561645631,-1),(c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1,-1),(ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31,-1)])])) (Value 856471200 (fromList [(PolicyID {policyID = ScriptHash \"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7\"},fromList [(566f7563686572,1)])]))))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (BadInputsUTxO (fromList [TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)]))))]}))))))","tag":"FailedToPostTx"},"tag":"PostingFailed","tx":{"body":{"collateral":["0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7#1"],"fees":3528800,"inputs":["0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7#0","0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7#1"],"mint":{"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355":{"14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215":-1,"4879647261486561645631":-1,"c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1":-1,"ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31":-1}},"outputs":[{"address":"addr_test1vq2tq3wvy82rzmm2ezt2gw9vr98ur9tnvxgcr34yff2qy9g8ny6m3","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":250000000}},{"address":"addr_test1wzmgf6tetqh88fgxwj088v222wkcxkvgchngs60xuzx2g2grsaafx","datum":null,"inlineDatum":{"constructor":0,"fields":[{"constructor":0,"fields":[{"list":[]},{"constructor":0,"fields":[{"constructor":0,"fields":[{"bytes":"1052386136b347f3bb7c67fe3f2ee4ef120e1836e5d2707bb068afa6"},{"int":8000000000000}]}]}]},{"constructor":0,"fields":[{"bytes":"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}]}]},"inlineDatumhash":"cfc8aa1b3344cbb0544b1bee9fb7add731ce5b14c36f41429065d4c158e1ee0c","referenceScript":null,"value":{"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7":{"566f7563686572":1},"lovelace":2000000}},{"address":"addr_test1vrrgz02rthldruxkmkn3a0uh9pddzg22dh7n4086fd6q4vgeumv4j","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":500000000}},{"address":"addr_test1vrwaue9mdtng9v6tdxkk2ym4k6er40afscx5vv5lg3z06vgqehfxu","datum":null,"datumhash":"a654fb60d21c1fed48db2c320aa6df9737ec0204c0ba53b9b94a09fb40e757f3","inlineDatum":null,"referenceScript":null,"value":{"lovelace":100942400}}],"referenceInputs":["9b6787a1aecb93f748d0498222e31d6f41f68948f69bc1b6b8d94cd9649fda34#2"],"scriptIntegrityHash":"6cc695500d48b1d96b6cffa2ef42a936a3ac6e511c3b4cc586654b697d5dabea","validity":{"notAfter":null,"notBefore":13151}},"id":"daec36ab16422c3214489266812cc66ba0a2f32a5ce53af7eb1193f3287861e9","isValid":true,"witnesses":{"datums":{"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5":"d87b9f9f58207abcda7de6d883e7570118c1ccc8ee2e911f2e628a41ab0685ffee15f39bba965820b37aabd81024c043f53a069c91e51a5b52e4ea399ae17ee1fe3cb9c44db707eb5820f68e5624f885d521d2f43c3959a0de70496d5464bd3171aba8248f50d5d72b41ff0158200f77911d83755729182157cddcfb716a749c702e46e7374e7d858280bab779681b00000187a10443c0d8799f1903e8ff581c6b4a78a641be2867925749129f97f8a5965631b9c80a222f8218835580ff"},"keys":["8200825820e122239580c539cd211ed1bd789a9b4b3dfdf69cff82dd1a8e79bd73442e339c5840d918eac9cc0f590f213d5c0ecaeb67907d085cfa0242d16e2a6d5d02a80b049376a9204b86c01e5fb491c8dbaf3ac5d4dd644201073ebcde869a2d2d4110ce08"],"redeemers":"82840000d87d9f03ff821a007681a61b000000016b953070840100d87a80821a005f1dd91ae876b38f","scripts":{"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355":"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{"timestamp":"2023-04-20T23:33:44.271816487Z","threadId":75,"namespace":"HydraNode-\"1\"","message":{"node":{"by":{"vkey":"b37aabd81024c043f53a069c91e51a5b52e4ea399ae17ee1fe3cb9c44db707eb"},"effect":{"serverOutput":{"postChainTx":{"contestationDeadline":"2023-04-20T23:33:44Z","tag":"FanoutTx","utxo":{"8e8bf7795d7c3ed786758032085e14fe3127ffff302b519462984e0247d7f416#0":{"address":"addr_test1vq2tq3wvy82rzmm2ezt2gw9vr98ur9tnvxgcr34yff2qy9g8ny6m3","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":250000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#0":{"address":"addr_test1wzmgf6tetqh88fgxwj088v222wkcxkvgchngs60xuzx2g2grsaafx","datum":null,"inlineDatum":{"constructor":0,"fields":[{"constructor":0,"fields":[{"list":[]},{"constructor":0,"fields":[{"constructor":0,"fields":[{"bytes":"1052386136b347f3bb7c67fe3f2ee4ef120e1836e5d2707bb068afa6"},{"int":8000000000000}]}]}]},{"constructor":0,"fields":[{"bytes":"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}]}]},"inlineDatumhash":"cfc8aa1b3344cbb0544b1bee9fb7add731ce5b14c36f41429065d4c158e1ee0c","referenceScript":null,"value":{"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7":{"566f7563686572":1},"lovelace":2000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#1":{"address":"addr_test1vrrgz02rthldruxkmkn3a0uh9pddzg22dh7n4086fd6q4vgeumv4j","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":500000000}}}},"postTxError":{"failureReason":"HardForkApplyTxErrFromEra S (S (S (S (S (Z (WrapApplyTxErr {unwrapApplyTxErr = ApplyTxError [UtxowFailure (FromAlonzoUtxowFail (NonOutputSupplimentaryDatums (fromList [SafeHash \"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5\"]) (fromList []))),UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0])),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)))])))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (ValueNotConservedUTxO (Value 96471200 (fromList [(PolicyID {policyID = ScriptHash \"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355\"},fromList [(14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215,-1),(4879647261486561645631,-1),(c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1,-1),(ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31,-1)])])) (Value 856471200 (fromList [(PolicyID {policyID = ScriptHash \"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7\"},fromList [(566f7563686572,1)])]))))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (BadInputsUTxO (fromList [TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)]))))]}))))))","tag":"FailedToPostTx"},"tag":"PostTxOnChainFailed"},"tag":"ClientEffect"},"tag":"EndEffect"},"tag":"Node"}}
{"timestamp":"2023-04-20T23:33:44.271819339Z","threadId":75,"namespace":"HydraNode-\"1\"","message":{"node":{"by":{"vkey":"b37aabd81024c043f53a069c91e51a5b52e4ea399ae17ee1fe3cb9c44db707eb"},"event":{"postChainTx":{"contestationDeadline":"2023-04-20T23:33:44Z","tag":"FanoutTx","utxo":{"8e8bf7795d7c3ed786758032085e14fe3127ffff302b519462984e0247d7f416#0":{"address":"addr_test1vq2tq3wvy82rzmm2ezt2gw9vr98ur9tnvxgcr34yff2qy9g8ny6m3","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":250000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#0":{"address":"addr_test1wzmgf6tetqh88fgxwj088v222wkcxkvgchngs60xuzx2g2grsaafx","datum":null,"inlineDatum":{"constructor":0,"fields":[{"constructor":0,"fields":[{"list":[]},{"constructor":0,"fields":[{"constructor":0,"fields":[{"bytes":"1052386136b347f3bb7c67fe3f2ee4ef120e1836e5d2707bb068afa6"},{"int":8000000000000}]}]}]},{"constructor":0,"fields":[{"bytes":"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}]}]},"inlineDatumhash":"cfc8aa1b3344cbb0544b1bee9fb7add731ce5b14c36f41429065d4c158e1ee0c","referenceScript":null,"value":{"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7":{"566f7563686572":1},"lovelace":2000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#1":{"address":"addr_test1vrrgz02rthldruxkmkn3a0uh9pddzg22dh7n4086fd6q4vgeumv4j","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":500000000}}}},"postTxError":{"failureReason":"HardForkApplyTxErrFromEra S (S (S (S (S (Z (WrapApplyTxErr {unwrapApplyTxErr = ApplyTxError [UtxowFailure (FromAlonzoUtxowFail (NonOutputSupplimentaryDatums (fromList [SafeHash \"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5\"]) (fromList []))),UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0])),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)))])))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (ValueNotConservedUTxO (Value 96471200 (fromList [(PolicyID {policyID = ScriptHash \"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355\"},fromList [(14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215,-1),(4879647261486561645631,-1),(c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1,-1),(ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31,-1)])])) (Value 856471200 (fromList [(PolicyID {policyID = ScriptHash \"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7\"},fromList [(566f7563686572,1)])]))))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (BadInputsUTxO (fromList [TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)]))))]}))))))","tag":"FailedToPostTx"},"tag":"PostTxError"},"tag":"EndEvent"},"tag":"Node"}}
{"timestamp":"2023-04-20T23:33:44.272494594Z","threadId":257,"namespace":"HydraNode-\"1\"","message":{"api":{"sentOutput":{"postChainTx":{"contestationDeadline":"2023-04-20T23:33:44Z","tag":"FanoutTx","utxo":{"8e8bf7795d7c3ed786758032085e14fe3127ffff302b519462984e0247d7f416#0":{"address":"addr_test1vq2tq3wvy82rzmm2ezt2gw9vr98ur9tnvxgcr34yff2qy9g8ny6m3","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":250000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#0":{"address":"addr_test1wzmgf6tetqh88fgxwj088v222wkcxkvgchngs60xuzx2g2grsaafx","datum":null,"inlineDatum":{"constructor":0,"fields":[{"constructor":0,"fields":[{"list":[]},{"constructor":0,"fields":[{"constructor":0,"fields":[{"bytes":"1052386136b347f3bb7c67fe3f2ee4ef120e1836e5d2707bb068afa6"},{"int":8000000000000}]}]}]},{"constructor":0,"fields":[{"bytes":"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}]}]},"inlineDatumhash":"cfc8aa1b3344cbb0544b1bee9fb7add731ce5b14c36f41429065d4c158e1ee0c","referenceScript":null,"value":{"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7":{"566f7563686572":1},"lovelace":2000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#1":{"address":"addr_test1vrrgz02rthldruxkmkn3a0uh9pddzg22dh7n4086fd6q4vgeumv4j","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":500000000}}}},"postTxError":{"failureReason":"HardForkApplyTxErrFromEra S (S (S (S (S (Z (WrapApplyTxErr {unwrapApplyTxErr = ApplyTxError [UtxowFailure (FromAlonzoUtxowFail (NonOutputSupplimentaryDatums (fromList [SafeHash \"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5\"]) (fromList []))),UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0])),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)))])))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (ValueNotConservedUTxO (Value 96471200 (fromList [(PolicyID {policyID = ScriptHash \"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355\"},fromList [(14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215,-1),(4879647261486561645631,-1),(c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1,-1),(ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31,-1)])])) (Value 856471200 (fromList [(PolicyID {policyID = ScriptHash \"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7\"},fromList [(566f7563686572,1)])]))))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (BadInputsUTxO (fromList [TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)]))))]}))))))","tag":"FailedToPostTx"},"seq":14,"tag":"PostTxOnChainFailed","timestamp":"2023-04-20T23:33:44.271502914Z"},"tag":"APIOutputSent"},"tag":"APIServer"}}
{"timestamp":"2023-04-20T23:33:44.272791175Z","threadId":261,"namespace":"HydraNode-\"1\"","message":{"api":{"sentOutput":{"postChainTx":{"contestationDeadline":"2023-04-20T23:33:44Z","tag":"FanoutTx","utxo":{"8e8bf7795d7c3ed786758032085e14fe3127ffff302b519462984e0247d7f416#0":{"address":"addr_test1vq2tq3wvy82rzmm2ezt2gw9vr98ur9tnvxgcr34yff2qy9g8ny6m3","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":250000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#0":{"address":"addr_test1wzmgf6tetqh88fgxwj088v222wkcxkvgchngs60xuzx2g2grsaafx","datum":null,"inlineDatum":{"constructor":0,"fields":[{"constructor":0,"fields":[{"list":[]},{"constructor":0,"fields":[{"constructor":0,"fields":[{"bytes":"1052386136b347f3bb7c67fe3f2ee4ef120e1836e5d2707bb068afa6"},{"int":8000000000000}]}]}]},{"constructor":0,"fields":[{"bytes":"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}]}]},"inlineDatumhash":"cfc8aa1b3344cbb0544b1bee9fb7add731ce5b14c36f41429065d4c158e1ee0c","referenceScript":null,"value":{"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7":{"566f7563686572":1},"lovelace":2000000}},"99cf7222af2f656b00240b61fe25d2aa6f9e09966d71754a522f123f72f4d80d#1":{"address":"addr_test1vrrgz02rthldruxkmkn3a0uh9pddzg22dh7n4086fd6q4vgeumv4j","datum":null,"datumhash":null,"inlineDatum":null,"referenceScript":null,"value":{"lovelace":500000000}}}},"postTxError":{"failureReason":"HardForkApplyTxErrFromEra S (S (S (S (S (Z (WrapApplyTxErr {unwrapApplyTxErr = ApplyTxError [UtxowFailure (FromAlonzoUtxowFail (NonOutputSupplimentaryDatums (fromList [SafeHash \"94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5\"]) (fromList []))),UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0])),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)))])))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (ValueNotConservedUTxO (Value 96471200 (fromList [(PolicyID {policyID = ScriptHash \"6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355\"},fromList [(14b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215,-1),(4879647261486561645631,-1),(c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1,-1),(ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31,-1)])])) (Value 856471200 (fromList [(PolicyID {policyID = ScriptHash \"2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7\"},fromList [(566f7563686572,1)])]))))),UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (BadInputsUTxO (fromList [TxIn (TxId {_unTxId = SafeHash \"0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7\"}) (TxIx 0)]))))]}))))))","tag":"FailedToPostTx"},"seq":14,"tag":"PostTxOnChainFailed","timestamp":"2023-04-20T23:33:44.271502914Z"},"tag":"APIOutputSent"},"tag":"APIServer"}}

When looking at the failureReason we see the following:

HardForkApplyTxErrFromEra
    S
    ( S
        ( S
            ( S
                ( S
                    ( Z
                        ( WrapApplyTxErr
                            { unwrapApplyTxErr =
                                ApplyTxError
                                  [ UtxowFailure
                                      ( FromAlonzoUtxowFail
                                          ( NonOutputSupplimentaryDatums
                                              ( fromList
                                                  [SafeHash "94823cbee8d16b5154da8f6e57cbd6a9de165ffef1299fa8520d3ca6acd36da5"]
                                              )
                                              (fromList [])
                                          )
                                      )
                                  , UtxowFailure (FromAlonzoUtxowFail (ExtraRedeemers [RdmrPtr Spend 0]))
                                  , UtxowFailure (UtxoFailure (FromAlonzoUtxoFail (UtxosFailure (CollectErrors [BadTranslation (TranslationLogicMissingInput (TxIn (TxId{_unTxId = SafeHash "0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7"}) (TxIx 0)))]))))
                                  , UtxowFailure
                                      ( UtxoFailure
                                          ( FromAlonzoUtxoFail
                                              ( ValueNotConservedUTxO
                                                  ( Value
                                                      96471200
                                                      ( fromList
                                                          [
                                                            ( PolicyID{policyID = ScriptHash "6b4a78a641be2867925749129f97f8a5965631b9c80a222f82188355"}
                                                            , fromList
                                                                [ (14 b045cc21d4316f6ac896a438ac194fc19573619181c6a44a540215, -1)
                                                                , (4879647261486561645631, -1)
                                                                , (c6813d435dfed1f0d6dda71ebf97285ad1214a6dfd3abcfa4b740ab1, -1)
                                                                , (ddde64bb6ae682b34b69ad651375b6b23abfa9860d46329f4444fd31, -1)
                                                                ]
                                                            )
                                                          ]
                                                      )
                                                  )
                                                  ( Value
                                                      856471200
                                                      ( fromList
                                                          [
                                                            ( PolicyID{policyID = ScriptHash "2035da628491aba52c1ab37ff68124d40fd49c0e5f258992229f0da7"}
                                                            , fromList [(566 f7563686572, 1)]
                                                            )
                                                          ]
                                                      )
                                                  )
                                              )
                                          )
                                      )
                                  , UtxowFailure
                                      ( UtxoFailure
                                          ( FromAlonzoUtxoFail
                                              ( BadInputsUTxO
                                                  ( fromList
                                                      [TxIn (TxId{_unTxId = SafeHash "0b7ada4617bf2a7180f9eac4ea60a7a95f5c90c853af8bb309f37b4d2a2092c7"}) (TxIx 0)]
                                                  )
                                              )
                                          )
                                      )
                                  ]
                            }
                        )
                    )
                )
            )
        )
    )

This transaction is missing an input as shown by TranslationLogicMissingInput. This transaction is a Fanout transaction.

This kind of error is expected: if all the nodes try to post the Fanout transaction at the same time then
only one of them can succeed since this transaction needs to spend the output of the close which can only
be consumed once.

In your text you mention that you see PostTxOnChainFailed on all hydra-node clients. I would say that you should see
PostTxOnChainFailed on all but one node. Could you double check that you, indeed, see it in all node. In which case,
could you share the log of all your nodes with us?

Cheers,

[uhbif19]

@pgrange

Sorry, you are right, nodes actually got HeadIsFinalized, so one Fanout tx worked.

But I still think this is wrong API behavior. I think if Tx fail on Hydra side is okay in some case - it should not return internal details but return some client-side understandable message.

[pgrange]

Of course @uhbif19 , you're right. The hydra-node is really not kind with you in this situation.

I'll close this bug in favor of #839 which idea is to see if and how we can, indeed, improve this feedback.

Also, this makes perfect sense to me for simultaneous Fanout (but with a lame feedback, I agree) but I would expect something quite different from simultaneous Init. So, just in case you observe strange things with Init, please raise an issue.