[GitHub] [arrow] westonpace commented on a diff in pull request #33739: GH-33655: [C++][Parquet] Fix occasional failure in TestArrowReadWrite.MultithreadedWrite

[GitBox]

westonpace commented on code in PR #33739:
URL: https://github.com/apache/arrow/pull/33739#discussion_r1082545465


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cpp/src/parquet/arrow/writer.cc:
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@@ -291,8 +291,13 @@ class FileWriterImpl : public FileWriter {
         arrow_properties_(std::move(arrow_properties)),
         closed_(false) {
     if (arrow_properties_->use_threads()) {
-      parallel_column_write_contexts_.resize(schema_->num_fields(),
-                                             {pool, arrow_properties_.get()});

Review Comment:
   I believe `parquet::AllocateBuffer` returns a `shared_ptr` which might make 
that difficult.  However, we could probably change that too.



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