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= 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
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