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· One min read

The 'snapshot' command of the client CLI is deprecated​

With the release of the new distribution 2412, we have deprecated the snapshot command of the client CLI.

The snapshot command has been superseded by the cardano-db snapshot command. In order to give time to our users to use the new command, the now legacy snapshot command is still available, but it will be removed in a near future.

In order to proceed to the upgrade, install the latest stable client CLI, and replace the legacy command with the new command, e.g.:

mithril-client -vvv snapshot download latest --json

Should be replaced with

mithril-client -vvv cardano-db snapshot download latest --json

For any inquiries or assistance, don't hesitate to reach out to the team on the Discord channel.

· 3 min read

Breaking change introduced in the output of Mithril client CLI​

With the release of the new distribution 2408, we have introduced a breaking change to the Mithril client CLI version 0.7.0: all logs are now written to stderr instead of stdout. This allows for cleaner command results that you can directly pipe into tools like jq.

Below, the stdout output of mithril-client -vvv snapshot download latest --json command before the update:

{"timestamp": "2024-02-27T10:41:55.576645+00:00", "step_num": 1, "total_steps": 5, "message": "Checking local disk info…"}
{"timestamp": "2024-02-27T10:41:55.576932+00:00", "step_num": 2, "total_steps": 5, "message": "Fetching the certificate and verifying the certificate chain…"}
{"timestamp": "2024-02-27T10:41:55.847199+00:00", "step_num": 3, "total_steps": 5, "message": "Downloading and unpacking the snapshot…"}
{"timestamp": "2024-02-27T10:41:56.023585+00:00", "bytes_downloaded": 390, "bytes_total": 345223208, "seconds_left": 75797.765, "seconds_elapsed": 0.085}
{"timestamp": "2024-02-27T10:41:56.356820+00:00", "bytes_downloaded": 9487846, "bytes_total": 345223208, "seconds_left": 32.674, "seconds_elapsed": 0.418}
{"timestamp": "2024-02-27T10:41:56.690001+00:00", "bytes_downloaded": 21682030, "bytes_total": 345223208, "seconds_left": 18.209, "seconds_elapsed": 0.752}
{"timestamp": "2024-02-27T10:41:57.023923+00:00", "bytes_downloaded": 33795639, "bytes_total": 345223208, "seconds_left": 14.218, "seconds_elapsed": 1.085}
{"timestamp": "2024-02-27T10:41:57.356999+00:00", "bytes_downloaded": 45934938, "bytes_total": 345223208, "seconds_left": 12.204, "seconds_elapsed": 1.419}
{"timestamp": "2024-02-27T10:41:57.690031+00:00", "bytes_downloaded": 58130472, "bytes_total": 345223208, "seconds_left": 10.894, "seconds_elapsed": 1.752}
{"timestamp": "2024-02-27T10:41:58.023964+00:00", "bytes_downloaded": 70235494, "bytes_total": 345223208, "seconds_left": 9.922, "seconds_elapsed": 2.086}
{"timestamp": "2024-02-27T10:41:58.357817+00:00", "bytes_downloaded": 82456663, "bytes_total": 345223208, "seconds_left": 9.134, "seconds_elapsed": 2.419}
{"timestamp": "2024-02-27T10:41:58.690945+00:00", "bytes_downloaded": 94618128, "bytes_total": 345223208, "seconds_left": 8.463, "seconds_elapsed": 2.753}
{"timestamp": "2024-02-27T10:41:59.024599+00:00", "bytes_downloaded": 106765259, "bytes_total": 345223208, "seconds_left": 7.868, "seconds_elapsed": 3.086}
{"timestamp": "2024-02-27T10:41:59.358139+00:00", "bytes_downloaded": 118941687, "bytes_total": 345223208, "seconds_left": 7.325, "seconds_elapsed": 3.420}
{"timestamp": "2024-02-27T10:41:59.691176+00:00", "bytes_downloaded": 131052374, "bytes_total": 345223208, "seconds_left": 6.824, "seconds_elapsed": 3.753}
{"timestamp": "2024-02-27T10:42:00.025189+00:00", "bytes_downloaded": 143190076, "bytes_total": 345223208, "seconds_left": 6.351, "seconds_elapsed": 4.087}
{"timestamp": "2024-02-27T10:42:00.358735+00:00", "bytes_downloaded": 155448192, "bytes_total": 345223208, "seconds_left": 5.896, "seconds_elapsed": 4.420}
{"timestamp": "2024-02-27T10:42:00.693529+00:00", "bytes_downloaded": 167494850, "bytes_total": 345223208, "seconds_left": 5.466, "seconds_elapsed": 4.755}
{"timestamp": "2024-02-27T10:42:01.026885+00:00", "bytes_downloaded": 179789000, "bytes_total": 345223208, "seconds_left": 5.043, "seconds_elapsed": 5.088}
{"timestamp": "2024-02-27T10:42:01.360483+00:00", "bytes_downloaded": 187536751, "bytes_total": 345223208, "seconds_left": 4.778, "seconds_elapsed": 5.422}
{"timestamp": "2024-02-27T10:42:01.693978+00:00", "bytes_downloaded": 199737576, "bytes_total": 345223208, "seconds_left": 4.389, "seconds_elapsed": 5.756}
{"timestamp": "2024-02-27T10:42:02.027113+00:00", "bytes_downloaded": 211879712, "bytes_total": 345223208, "seconds_left": 4.006, "seconds_elapsed": 6.089}
{"timestamp": "2024-02-27T10:42:02.360139+00:00", "bytes_downloaded": 224033698, "bytes_total": 345223208, "seconds_left": 3.626, "seconds_elapsed": 6.422}
{"timestamp": "2024-02-27T10:42:02.694407+00:00", "bytes_downloaded": 236212871, "bytes_total": 345223208, "seconds_left": 3.249, "seconds_elapsed": 6.756}
{"timestamp": "2024-02-27T10:42:03.027431+00:00", "bytes_downloaded": 248301091, "bytes_total": 345223208, "seconds_left": 2.878, "seconds_elapsed": 7.089}
{"timestamp": "2024-02-27T10:42:03.361001+00:00", "bytes_downloaded": 260428703, "bytes_total": 345223208, "seconds_left": 2.509, "seconds_elapsed": 7.423}
{"timestamp": "2024-02-27T10:42:03.694430+00:00", "bytes_downloaded": 272673595, "bytes_total": 345223208, "seconds_left": 2.139, "seconds_elapsed": 7.756}
{"timestamp": "2024-02-27T10:42:04.028557+00:00", "bytes_downloaded": 284878102, "bytes_total": 345223208, "seconds_left": 1.774, "seconds_elapsed": 8.090}
{"timestamp": "2024-02-27T10:42:04.361686+00:00", "bytes_downloaded": 296835374, "bytes_total": 345223208, "seconds_left": 1.418, "seconds_elapsed": 8.423}
{"timestamp": "2024-02-27T10:42:04.695532+00:00", "bytes_downloaded": 309005759, "bytes_total": 345223208, "seconds_left": 1.058, "seconds_elapsed": 8.757}
{"timestamp": "2024-02-27T10:42:05.028705+00:00", "bytes_downloaded": 321118015, "bytes_total": 345223208, "seconds_left": 0.702, "seconds_elapsed": 9.090}
{"timestamp": "2024-02-27T10:42:05.361956+00:00", "bytes_downloaded": 333264477, "bytes_total": 345223208, "seconds_left": 0.347, "seconds_elapsed": 9.424}
{"timestamp": "2024-02-27T10:42:05.711065+00:00", "step_num": 4, "total_steps": 5, "message": "Computing the snapshot message"}
{"timestamp": "2024-02-27T10:42:12.540752+00:00", "step_num": 5, "total_steps": 5, "message": "Verifying the snapshot signature…"}
{"timestamp": "2024-02-27T10:42:12.540913+00:00", "db_directory": "/mithril-client-0.5.17/db"}

Now the stdout output with Mithril client CLI version 0.7.0:

{"timestamp": "2024-02-27T10:43:06.357962+00:00", "db_directory": "/mithril-client-0.7.0/db"}

In addition, the --log-format-json option that enable JSON output is now written to stderr as well.

For any inquiries or assistance, don't hesitate to reach out to the team on the Discord channel.