[GitHub] [iotdb] zyk990424 opened a new pull request #4019: [To rel/0.12][IOTDB-1727] Fix Slow creation of timeseries with tag

[GitBox <gi...@apache.org>]

zyk990424 opened a new pull request #4019:
URL: https://github.com/apache/iotdb/pull/4019


   ## Description
   
   
   ### Problem
   When user creates a timeseries with tag or attribute, the tag/attribute record will be persisted to TagLogFile.
   Currently, every TagLogFile writing operation will be force flushed to  disk, and too many disk I/O will cause poor performance.
   A example case is that, one timeseries creation costs 48ms and around 8000 timeseries with tag creation costs 5-6min.
   
   ### Solution
   Set the force flush mode of FileChannel to false and execute force flush every N writing operations. N is an customized interval value that user can config.
   


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[GitHub] [iotdb] JackieTien97 merged pull request #4019: [To rel/0.12][IOTDB-1727] Fix Slow creation of timeseries with tag

[GitBox <gi...@apache.org>]

JackieTien97 merged pull request #4019:
URL: https://github.com/apache/iotdb/pull/4019


   


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