NOISSUE - Add Things Migration#2
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rodneyosodo wants to merge 41 commits into
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dborovcanin
requested changes
Mar 28, 2023
| @@ -0,0 +1,39 @@ | |||
| package main | |||
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No need for a migrate subdirectory, cmd/main.go is just fine.
| func connectToThingsDB(dbConfig mf13thingspostgres.Config) *sqlx.DB { | ||
| db, err := mf13thingspostgres.Connect(dbConfig) | ||
| if err != nil { | ||
| log.Panic(fmt.Errorf("Failed to connect to things postgres: %s", err)) |
| // Root Flags | ||
| rootCmd.PersistentFlags().StringVarP(&cfg.FromVersion, "fromversion", "f", "0.13.0", "mainflux version you want to migrate from") | ||
| rootCmd.PersistentFlags().StringVarP(&cfg.ToVersion, "toversion", "t", "0.14.0", "mainflux version you want to migrate to") | ||
| rootCmd.PersistentFlags().StringVarP(&cfg.Operation, "operation", "o", "export", "export dataor import data to a new mainflux deployment") |
| } | ||
| o := limit | ||
| limit = util.UpdateLimit(usersPage.Total) | ||
| for o < usersPage.Total { |
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The idea of fetching everything from the DB to the RAM. That's the point of pagination. This should be more like a pipe where we stream (channel) the batch, and publish it to the next phase to process. Bear in mind that we'll need to remember "last saved" so in case something goes wrong we don't need to start over.
rodneyosodo
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Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
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Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
SammyOina
suggested changes
Jul 27, 2023
| ) | ||
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| const ( | ||
| migrationDuration = 1 * time.Hour |
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this might not be a good idea to set a fixed value because we don't know how long it could take for different sizes of migrations
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| switch { | ||
| case total <= limit1000: | ||
| return defLimit | ||
| case total <= limit10000: | ||
| return limit1000 | ||
| case total <= limit100000: | ||
| return limit10000 | ||
| case total <= limit1000000: |
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this can be reduced a mathematical statement
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| func Migrate(ctx context.Context, cfg migrations.Config, logger logger.Logger) { | ||
| go func() { | ||
| log.Println(http.ListenAndServe("localhost:6060", nil)) |
Contributor
|
regarding the token timeout, you can add to documentation on how to change env var to create a longer duration token for migration purposes |
Signed-off-by: rodneyosodo <blackd0t@protonmail.com>
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Signed-off-by: rodneyosodo blackd0t@protonmail.com
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