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  1. Mule
  2. MULE-19072

HTTP Client should use a custom scheduler to stream responses

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    • S1
    • No
    • Production Defect
    • 0
    • Prod Eng - U2 12/16
    • S1
    • performance
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      Fixed a deadlock when streaming responses in proxy scenarios by using a dedicated thread-pool.

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      Fixed a deadlock when streaming responses in proxy scenarios by using a dedicated thread-pool.

    Description

      When streaming responses, the HTTP client uses a PipedInputStream/PipedOuputStream to write the body parts read from the socket, and it's currently doing this operation in an IO scheduler.

      These kind of streams are being read usually schedulers using threads from the same pool (the uber).

      So, it's possible to be using the same thread-pool (and therefore the same thread) to read/write from/to the same pipe. If it happens, we have a deadlock.

      To avoid this situation, we should use a custom scheduler to handle the response parts and write them to the pipes.

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          relates to

          Task - A task that needs to be done. MULE-19084 Investigate how many schedulers may be created in complex apps by GrizzlyHttpClient when streamResponse is activated

          • Major - Major loss of function.
          • New

          Bug - A problem which impairs or prevents the functions of the product. MULE-16597 HTTP client should use worker pool when streaming responses

          • To be reviewed - The priority for new issues filed by users
          • Resolved

          Enhancement Request - HTTPC-75 Use IO threads to handle HTTP response streaming

          • Major - Major loss of function.
          • Resolved

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              ewerner@mulesoft.com Ezequiel Maximiliano Werner
              ewerner@mulesoft.com Ezequiel Maximiliano Werner
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