Anthony Abate created ARROW-7040:
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Summary: StringArrayBuilder.AppendRange - Crashes
Key: ARROW-7040
URL: https://issues.apache.org/jira/browse/ARROW-7040
Project: Apache Arrow
Issue Type: Bug
Components: C#
Affects Versions: 0.15.0, 0.14.1
Reporter: Anthony Abate
The following code crashes on 8 cores.
{code:java}
public async Task StringArrayBuilder_StressTest()
{
var wait = new List<Task>(); for (int i = 0; i < 30; ++i)
{
var data = Enumerable.Range(0, 1000).Select(x => $"Item {x +
1}").ToArray(); var t = Task.Run(() =>
{
for (int j = 0; j < 10000000; ++j)
{
var builder = new StringArray.Builder();
builder.AppendRange(data);
}
}); wait.Add(t);
} await Task.WhenAll(wait);
} {code}
It does not happen with the primitive arrays.
I suspect it is due to the offset array / and all the copy / resizing going on
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