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  1. MariaDB Server
  2. MDEV-18644

Support FULL_CRC32 for compressed pages.

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    Description

      Allow compressed page in full_crc32 format. The format of full_crc32 is also follows:

      • Set the MSB of FIL_PAGE_TYPE as 1 for compressed page
      • Allocate the 10 bits for storing compressed (length + (4 + 63)) / 64. The 4 extra bytes are for storing the checksum over the compressed (and optionally encrypted) stream. The checksum would be stored in the last 4 bytes of a 64-byte aligned block.

      FSP_SPACE_FLAGS already contains COMPRESSED_PAGE_ALGORITHM. So that InnoDB shouldn't allow the tablespace to open if particular algorithm is not supported.

      The following should be fixed as part of this task:

      • ha_innobase::check_if_supported_inplace_alter() must allow instant change of page_compressed=1
      • buf_dblwr_check_page_lsn() must evaluate fil_space_t::full_crc32()
      • More use of #define FIL_* or #define FSP_ should be replaced with inline member functions of fil_space_t

      Attachments

        Issue Links

          blocks

          Task - A task that needs to be done. MDEV-11916 Page compression - use smaller writes, avoid trimming/zeroing rest of the page if possible

          • Major - Major loss of function.
          • Open
          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-23986 [ERROR] [FATAL] InnoDB: Page ... name ... page_type ... key_version 1 lsn ... compressed_len ...

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-18958 InnoDB buffer pool load is opening an inaccessible data file

          • Major - Major loss of function.
          • Stalled

          Task - A task that needs to be done. MDEV-19534 Make innodb_checksum_algorithm=full_crc32 by default, and remove innodb_checksums

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-20588 Mariabackup incorrectly thinks a compressed table is corrupted

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-23199 page_compression flag is missing for full_crc32 tablespace

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-27091 log_phys_t::apply_status log_phys_t::apply(const buf_block_t&, uint16_t&) const: Assertion `mach_read_from_4(frame + 34U) == block.page.id().space()' failed during CrashRecovery

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28168 Compressed page is read for non-compressed space during recovery

          • Major - Major loss of function.
          • Confirmed

          Task - A task that needs to be done. MDEV-12026 Support encrypted SPATIAL INDEX

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

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              marko Marko Mäkelä
              thiru Thirunarayanan Balathandayuthapani
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                Created:
                Updated:
                Resolved:

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