•	Saidump for DNX-SAI sonic-net/sonic-buildimage#13561

Solution and modification:
To use the redis-db SAVE option to save the snapshot of DB each time and recover later, instead of looping through each entry in the table and saving it.

(1) Updated sonic-buildimage/build_debian.sh, to install Python library rdbtools into the host.
(2) Updated sonic-buildimage/src/sonic-sairedis/saidump/saidump.cpp, add a new option -r, which updates the rdbtools's output-JSON files' format.
(3) Add a new script file: files/scripts/saidump.sh, to do the below steps
  For each ASIC0, such as ASIC0,

  sonic-net#1. Save the Redis data.
  sudo sonic-db-cli -n asic$1 SAVE > /dev/null

  sonic-net#2. Move dump files to /var/run/redisX/
  docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

  sonic-net#3. Run rdb command to convert the dump files into JSON files
  sudo python /usr/local/bin/rdb --command json  /var/run/redis$1/dump.rdb | sudo tee /var/run/redis$1/dump.json > /dev/null

  sonic-net#4. Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump result in standard output.
  docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json"

  sonic-net#5. clear
  sudo rm -f /var/run/redis$1/dump.rdb
  sudo rm -f /var/run/redis$1/dump.json

(4) Update sonic-buildimage/src/sonic-utilities/scripts/generate_dump, replace saidump with saidump.sh

•	Saidump for DNX-SAI sonic-net/sonic-buildimage#13561

Solution and modification:
To use the redis-db SAVE option to save the snapshot of DB each time and recover later, instead of looping through each entry in the table and saving it.

(1) Updated sonic-buildimage/build_debian.sh, to install Python library rdbtools into the host.
(2) Updated sonic-buildimage/src/sonic-sairedis/saidump/saidump.cpp, add a new option -r, which updates the rdbtools's output-JSON files' format.
(3) Add a new script file: files/scripts/saidump.sh, to do the below steps
  For each ASIC0, such as ASIC0,

  1. Save the Redis data.
  sudo sonic-db-cli -n asic$1 SAVE > /dev/null

  2. Move dump files to /var/run/redisX/
  docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

  3. Run rdb command to convert the dump files into JSON files
  sudo python /usr/local/bin/rdb --command json  /var/run/redis$1/dump.rdb | sudo tee /var/run/redis$1/dump.json > /dev/null

  4. Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump result in standard output.
  docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json"

  5. clear
  sudo rm -f /var/run/redis$1/dump.rdb
  sudo rm -f /var/run/redis$1/dump.json

(4) Update sonic-buildimage/src/sonic-utilities/scripts/generate_dump, replace saidump with saidump.sh

    •       Saidump for DNX-SAI sonic-net/sonic-buildimage#13561

    Solution and modification:
    To use the redis-db SAVE option to save the snapshot of DB each time and recover later, instead of looping through each entry in the table and saving it.

    (1) Updated sonic-buildimage/build_debian.sh, to install Python library rdbtools into the host.
    (2) Updated sonic-buildimage/src/sonic-sairedis/saidump/saidump.cpp, add a new option -r, which updates the rdbtools's output-JSON files' format.
    (3) Add a new script file: files/scripts/saidump.sh, to do the below steps
      For each ASIC0, such as ASIC0,

      1. Save the Redis data.
      sudo sonic-db-cli -n asic$1 SAVE > /dev/null

      2. Move dump files to /var/run/redisX/
      docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

      3. Run rdb command to convert the dump files into JSON files
      sudo python /usr/local/bin/rdb --command json  /var/run/redis$1/dump.rdb | sudo tee /var/run/redis$1/dump.json > /dev/null

      4. Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump result in standard output.
      docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json"

      5. clear
      sudo rm -f /var/run/redis$1/dump.rdb
      sudo rm -f /var/run/redis$1/dump.json

    (4) Update sonic-buildimage/src/sonic-utilities/scripts/generate_dump, replace saidump with saidump.sh

        •       Saidump for DNX-SAI sonic-net/sonic-buildimage#13561

        Solution and modification:
        To use the redis-db SAVE option to save the snapshot of DB each time and recover later, instead of looping through each entry in the table and saving it.

        (1) Updated sonic-buildimage/build_debian.sh, to install Python library rdbtools into the host.
        (2) Updated sonic-buildimage/src/sonic-sairedis/saidump/saidump.cpp, add a new option -r, which updates the rdbtools's output-JSON files' format.
        (3) Add a new script file: files/scripts/saidump.sh, to do the below steps
          For each ASIC0, such as ASIC0,

          1. Save the Redis data.
          sudo sonic-db-cli -n asic$1 SAVE > /dev/null

          2. Move dump files to /var/run/redisX/
          docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

          3. Run rdb command to convert the dump files into JSON files
          sudo python /usr/local/bin/rdb --command json  /var/run/redis$1/dump.rdb | sudo tee /var/run/redis$1/dump.json > /dev/null

          4. Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump result in standard output.
          docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json"

          5. clear
          sudo rm -f /var/run/redis$1/dump.rdb
          sudo rm -f /var/run/redis$1/dump.json

        (4) Update sonic-buildimage/src/sonic-utilities/scripts/generate_dump, replace saidump with saidump.sh

sonic-net#2972
SAI DUMP based on the route table size

* [saidump]
• Saidump for DNX-SAI sonic-net/sonic-buildimage#13561

Solution and modification:
To use the Redis-db SAVE option to save the snapshot of DB each time and recover later, instead of looping through each entry in the table and saving it.

(1) Updated platform/broadcom/docker-syncd-brcm-dnx/Dockerfile.j2, install Python library rdbtools into the syncd containter.
(2) Updated sonic-buildimage/src/sonic-sairedis/saidump/saidump.cpp, add a new option -r, which updates the rdbtools's output-JSON files' format.
(3) Updated sonic-buildimage/build_debian.sh, to add a new script file: files/scripts/saidump.sh into the host. This shell file does the below steps:
  For each ASIC0, such as ASIC0,

  1. Save the Redis data.
  sudo sonic-db-cli -n asic$1 SAVE > /dev/null

  2. Move dump files to /var/run/redisX/
  docker exec database$1 sh -c "mv /var/lib/redis/dump.rdb /var/run/redis$1/"

  3. Run rdb command to convert the dump files into JSON files
  docker exec syncd$1 sh -c "rdb --command json /var/run/redis$1/dump.rdb | tee /var/run/redis$1/dump.json > /dev/null"

  4. Run saidump -r to update the JSON files' format as same as the saidump before. Then we can get the saidump result in standard output.
  docker exec syncd$1 sh -c "saidump -r /var/run/redis$1/dump.json -m 100"

  5. clear
  sudo rm -f /var/run/redis$1/dump.rdb
  sudo rm -f /var/run/redis$1/dump.json

(4) Update sonic-buildimage/src/sonic-utilities/scripts/generate_dump, to check the asic db size and if it is larger than xxx entries, then do with REDIS SAVE, otherwise, to do with old method: looping through each entry of Redis DB.

…_LIMIT_DIRECT_ITERATION to 24000

To add the rdbtools into base docker.
Move saidump.sh from host to syncd docker container.

sonic-net#2972 (comment)