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Checkpointing a set of stream computing data

  • US 10,536,502 B2
  • Filed: 04/23/2019
  • Issued: 01/14/2020
  • Est. Priority Date: 04/25/2017
  • Status: Active Grant
First Claim
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1. A computer-implemented method for checkpointing a set of stream computing data with respect to a stream computing environment having a set of windowed stream operators including both a first windowed stream operator and a second windowed stream operator, the method comprising:

  • modifying, based on both the first windowed stream operator having a first subset of the set of stream computing data and the second windowed stream operator having the first subset of the set of stream computing data, a set of checkpoint access permissions to authorize the first windowed stream operator to perform a checkpointing operation with respect to the first subset of the set of stream computing data;

    checkpointing the first subset of the set of stream computing data using the first windowed stream operator based on the modified set of checkpoint access permissions; and

    preventing the second windowed stream operator from checkpointing the first subset of the set of stream computing data based on the modified set of checkpoint access permissions.

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