| :linkattrs: | 
 | = MigrateAccountPatchReviewDb | 
 |  | 
 | == NAME | 
 | MigrateAccountPatchReviewDb - Migrates AccountPatchReviewDb from one database | 
 | backend to another. | 
 |  | 
 | == SYNOPSIS | 
 | [verse] | 
 | -- | 
 | _java_ -jar gerrit.war MigrateAccountPatchReviewDb | 
 |   -d <SITE_PATH> | 
 |   [--sourceUrl] [--chunkSize] | 
 | -- | 
 |  | 
 | == DESCRIPTION | 
 | Migrates AccountPatchReviewDb from one database backend to another. The | 
 | AccountPatchReviewDb is a database used to store the user file reviewed flags. | 
 |  | 
 | This command is only intended to be run if the configuration parameter | 
 | link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url] | 
 | is set or changed. | 
 |  | 
 | To migrate AccountPatchReviewDb: | 
 |  | 
 | * Stop Gerrit | 
 | * Configure new value for link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url] | 
 | * Migrate data using this command | 
 | * Start Gerrit | 
 |  | 
 | [NOTE] | 
 | When using MySQL, the file_name column length in the account_patch_reviews table will be shortened | 
 | from the standard 4096 characters down to 255 characters. This is due to a | 
 | link:https://dev.mysql.com/doc/refman/5.7/en/innodb-restrictions.html[MySQL limitation,role=external,window=_blank] | 
 | on the max size of 767 bytes for each column in an index. | 
 |  | 
 | == OPTIONS | 
 |  | 
 | -d:: | 
 | --site-path:: | 
 | 	Location of the `gerrit.config` file, and all other per-site | 
 | 	configuration data, supporting libraries and log files. | 
 |  | 
 | --sourceUrl:: | 
 | 	Url of source database. Only need to be specified if the source is not H2. | 
 |  | 
 | --chunkSize:: | 
 | 	Chunk size of fetching from source and pushing to target on each time. | 
 | 	Defaults to 100000. | 
 |  | 
 | == CONTEXT | 
 | This command can only be run on a server which has direct | 
 | connectivity to the database. | 
 |  | 
 | == EXAMPLES | 
 | To migrate from H2 to the database specified by | 
 | link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url] | 
 | in gerrit.config: | 
 |  | 
 | ---- | 
 | 	$ java -jar gerrit.war MigrateAccountPatchReviewDb -d site_path | 
 | ---- | 
 |  | 
 | == SEE ALSO | 
 |  | 
 | * Configuration parameter link:config-gerrit.html#accountPatchReviewDb.url[accountPatchReviewDb.url] | 
 |  | 
 | GERRIT | 
 | ------ | 
 | Part of link:index.html[Gerrit Code Review] | 
 |  | 
 | SEARCHBOX | 
 | --------- |