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  1. MariaDB Server
  2. MDEV-34803

innodb_lru_flush_size configuration is no longer used

Details

    Description

      MDEV-33613 eliminated page flush from LRU by session thread ( ) when no free pages are found in LRU. The configuration innodb_lru_flush_size used to control the number of pages to be flushed also got unused.

      buf_block_t *buf_LRU_get_free_block(bool have_mutex)
      		 
      {
      		 
      ...
      		 
      if (!buf_flush_LRU(innodb_lru_flush_size, true)) {
      		 
                      MONITOR_INC(MONITOR_LRU_SINGLE_FLUSH_FAILURE_COUNT);
      		 
                      ++flush_failures;
      		 
      }

      Based on discussion with marko, we can deprecate the parameter and eventually remove.

      Attachments

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-36378 The deprecated parameter innodb_purge_rseg_truncate_frequency is not being recognized

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-33613 InnoDB may still hang when temporarily running out of buffer pool

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Activity

            Transition Time In Source Status Execution Times
            Marko Mäkelä made transition -
            Open In Progress
            		4d 7h 45m 1
            Marko Mäkelä made transition -
            In Progress In Review
            		45m 25s 1
            Debarun Banerjee made transition -
            In Review Stalled
            		13m 58s 1
            Marko Mäkelä made transition -
            Stalled Closed
            		13h 48m 1

            People

              marko Marko Mäkelä
              debarun Debarun Banerjee
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              Dates

                Created:
                Updated:
                Resolved:

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