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  1. Acquia Support Knowledge Base
  2. Troubleshooting
  3. Common Problem

"Too many open files" OS error

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    • Updated
    • October 27, 2020 02:17

    Issue

    When running PHP commands, you see an error similar to the following:

    failed to open stream: Too many open files

    Resolution

    Find and follow a tutorial for your respective operating system (MacOS or Linux) to increase the open files limit:

    • https://rtcamp.com/tutorials/linux/increase-open-files-limit/

    Cause

    Operating systems impose a limit on the number of files and processes that can be opened at once by a given process. You have set this limit too low, and must increase it.

    Acquia Products

    • Acquia BLT
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    Dane Powell
    • October 27, 2020 02:17
    • Updated
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