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caretaker: make batch state atomic #323

Merged
merged 2 commits into from
May 30, 2023
Merged

caretaker: make batch state atomic #323

merged 2 commits into from
May 30, 2023

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jharveyb
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Fixes #296.

This was the cleanest way I saw to make these changes; we can't have BatchState as a type alias for atomic.Uint32, since then we can't define batch states with an enum.

Confirmed that this fixes make unit-race failing on my machine.

@jharveyb jharveyb requested review from guggero and ffranr May 25, 2023 14:30
guggero
guggero reviewed May 25, 2023
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@guggero guggero left a comment

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Nice change!

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@jharveyb
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New flake (?), seems important:

2023-05-25 14:33:39.732 [INF] UNIV: UniverseRoot(2fb56e101d8ea37759c5d5454153dd866ed43e9c268af9006aab2e29c9c6cccd): inserting new leaf
2023-05-25 14:33:39.733 [WRN] UNIV: unable to log sync event: unknown postgres error: ERROR: null value in column "universe_root_id" violates not-null constraint (SQLSTATE 23502)
2023-05-25 14:33:39.745 [WRN] UNIV: unable to log new proof event: unknown postgres error: ERROR: null value in column "universe_root_id" violates not-null constraint (SQLSTATE 23502)
2023-05-25 14:33:39.745 [ERR] RPCS: [/universerpc.Universe/SyncUniverse]: unable to sync universe: unable to register issuance proof: unable to register new issuance: sql unique constraint violation: ERROR: duplicate key value violates unique constraint "mssmt_nodes_pkey" (SQLSTATE 23505)
    test_harness.go:231: 
        	Error Trace:	/home/runner/work/taproot-assets/taproot-assets/itest/test_harness.go:231
        	            				/home/runner/work/taproot-assets/taproot-assets/itest/test_harness.go:377
        	            				/home/runner/work/taproot-assets/taproot-assets/itest/multi_asset_group_test.go:122
        	            				/home/runner/work/taproot-assets/taproot-assets/itest/test_harness.go:162
        	            				/home/runner/work/taproot-assets/taproot-assets/itest/integration_test.go:71
        	Error:      	Received unexpected error:
        	            	rpc error: code = Unknown desc = unable to sync universe: unable to register issuance proof: unable to register new issuance: sql unique constraint violation: ERROR: duplicate key value violates unique constraint "mssmt_nodes_pkey" (SQLSTATE 23505)
        	Test:       	TestTaprootAssetsDaemon/minting_multi_asset_groups
2023-05-25 14:33:40.565 [ERR] GRDN: Aborting main custodian event loop: receive failed: EOF

@jharveyb jharveyb force-pushed the caretaker_atomic_batch_state branch from 2693f4a to 665c000 Compare May 25, 2023 15:34
@jharveyb jharveyb mentioned this pull request May 25, 2023
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@jharveyb
tapgarden: use private atomic uint for batch state
ac1b661 
In this commit, we change the MintingBatch.BatchState variable from a
public uint32 to a private atomic.uint32, to prevent race conditions
when cancelling a batch. We also add methods to read and write this
private batch state, and new logic to check that plain uint32s are valid
BatchStates.
@jharveyb
rpcserver+tapdb: use new batch state R/W methods
837b930
@jharveyb jharveyb force-pushed the caretaker_atomic_batch_state branch from 665c000 to 837b930 Compare May 25, 2023 15:57
ffranr
ffranr approved these changes May 30, 2023
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@ffranr ffranr left a comment

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Good idea! 👍

I think a single commit would do, but it doesn't really matter.

@guggero guggero added this pull request to the merge queue May 30, 2023
Merged via the queue into main with commit 97c045e May 30, 2023
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@jharveyb jharveyb deleted the caretaker_atomic_batch_state branch July 5, 2023 17:57
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@guggero guggero guggero approved these changes

@ffranr ffranr ffranr approved these changes

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tarogarden: caretaker data race
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@jharveyb @guggero @ffranr