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IGNITE-26495 .NET: Fix TestReadOnlyTxSeesOldDataAfterUpdate flakiness #6706

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Merged
ptupitsyn merged 6 commits into from
Oct 6, 2025
Merged

IGNITE-26495 .NET: Fix TestReadOnlyTxSeesOldDataAfterUpdate flakiness #6706

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IGNITE-26495 .NET: Apache.Ignite.Tests.Transactions.TransactionsTests…
ptupitsyn Oct 2, 2025
16d2e46
Merge branch 'main' into ignite-26495
ptupitsyn Oct 6, 2025
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wip
ptupitsyn Oct 6, 2025
7a28f14
Add workaround
ptupitsyn Oct 6, 2025
82079d6
Add workaround
ptupitsyn Oct 6, 2025
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ptupitsyn Oct 6, 2025
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23 changes: 16 additions & 7 deletions modules/platforms/dotnet/Apache.Ignite.Tests/Transactions/TransactionsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -211,27 +211,36 @@ public async Task TestTransactionFromAnotherClientThrows()
[Test]
public async Task TestReadOnlyTxSeesOldDataAfterUpdate([Values(true, false)] bool readBeforeUpdate)
{
// TODO IGNITE-26619 Implicit client ro tx does not include observableTimestamp - remove workaround below.
// Use single-node connection to work around causality issues due to round-robin in GetNextSocketWithoutReconnect.
var cfg = GetConfig();
cfg.Endpoints.Clear();
cfg.Endpoints.Add($"127.0.0.1:{ServerPort}");

using var client = await IgniteClient.StartAsync(cfg);
var recordView = (await client.Tables.GetTableAsync(TableName))!.GetRecordView<Poco>();

var key = Random.Shared.NextInt64(1000, long.MaxValue);
var keyPoco = new Poco { Key = key };

await PocoView.UpsertAsync(null, new Poco { Key = key, Val = "11" });
await recordView.UpsertAsync(null, new Poco { Key = key, Val = "11" });

await using var roTx = await Client.Transactions.BeginAsync(new TransactionOptions { ReadOnly = true });
await using var roTx = await client.Transactions.BeginAsync(new TransactionOptions { ReadOnly = true });

if (readBeforeUpdate)
{
Assert.AreEqual("11", (await PocoView.GetAsync(roTx, keyPoco)).Value.Val);
Assert.AreEqual("11", (await recordView.GetAsync(roTx, keyPoco)).Value.Val);
}

// Update data in a different (implicit) tx.
await PocoView.UpsertAsync(transaction: null, new Poco { Key = key, Val = "22" });
await recordView.UpsertAsync(transaction: null, new Poco { Key = key, Val = "22" });

// Old read-only tx sees old data.
Assert.AreEqual("11", (await PocoView.GetAsync(roTx, keyPoco)).Value.Val);
Assert.AreEqual("11", (await recordView.GetAsync(roTx, keyPoco)).Value.Val);

// New tx sees new data
await using var tx3 = await Client.Transactions.BeginAsync(new TransactionOptions { ReadOnly = true });
Assert.AreEqual("22", (await PocoView.GetAsync(tx3, keyPoco)).Value.Val);
await using var tx3 = await client.Transactions.BeginAsync(new TransactionOptions { ReadOnly = true });
Assert.AreEqual("22", (await recordView.GetAsync(tx3, keyPoco)).Value.Val);
}

[Test]
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