Galaxy FDS Migration Tool

A MapReduce tool to migrate objects or files parallely between different object storage systems like AWS S3, XIAOMI Galaxy FDS and so on.

Config

The source and target for migiration is set by the configs: migration.source.class and migration.target.class. Current suppoted source classes are

• com.xiaomi.infra.galaxy.fds.source.S3Source for AWS S3
• com.xiaomi.infra.galaxy.fds.source.FDSSource for XIAOMI Galaxy FDS
• com.xiaomi.infra.galaxy.fds.source.HTTPSource for downloading objects through http protocal

Othe sources can be supported by a class implementing Source interface.

AWS S3

To support the AWS S3 as a migration source, following configs must be set.

  <property>
    <name>migration.source.class</name>
    <value>com.xiaomi.infra.galaxy.fds.source.S3Source</value>
  </property>
  <property>
    <name>migration.source.s3.endpoint.name</name>
    <value>${endpoint-name}</value>
  </property>
  <property>
    <name>migration.source.s3.bucket.name</name>
    <value>${bucket-name}</value>
  </property>
  <property>
    <name>migration.source.s3.access.key</name>
    <value>${access-key}</value>
  </property>
  <property>
    <name>migration.source.s3.access.secret</name>
    <value>${access-secret}</value>
  </property>

If the AWS S3 is the migration target, you need change the prefix “migration.source” to “migration.target”.

XIAOMI Galaxy FDS(dev.xiaomi.com)

To support the XIAOMI Galaxy FDS as a migration source, following configs must be set.

  <property>
    <name>migration.source.class</name>
    <value>com.xiaomi.infra.galaxy.fds.source.FDSSource</value>
  </property>
  <property>
    <name>migration.source.fds.region.name</name>
    <value>${region-name}</value>
  </property>
  <property>
    <name>migration.source.fds.bucket.name</name>
    <value>${bucket-name}</value>
  </property>
  <property>
    <name>migration.source.fds.access.key</name>
    <value>${access-key}</value>
  </property>
  <property>
    <name>migration.source.fds.access.secret</name>
    <value>${access-secret}</value>
  </property>

If the FDS is the migration target, you need change the prefix “migration.source” to “migration.target”.

HTTPSource

HTTP source only can be the migration source.

  <property>
    <name>migration.source.class</name>
    <value>com.xiaomi.infra.galaxy.fds.source.HTTPSource</value>
  </property>
  <property>
    <name>migration.source.http.url.pattern</name>
    <value>${url-pattern}</value>
  </property>
  <property>
    <name>migration.source.http.downloader.list</name>
    <value>ip1,ip2</value>
  </property>

Run

Local Test

Set the configs for the migration source and target, then run following cmds:

bash target/galaxy-fds-migration-tool-1.0-SNAPSHOT/bin/migration.sh -conf conf/job-local.xml list prefix fileList
bash target/galaxy-fds-migration-tool-1.0-SNAPSHOT/bin/migration.sh -conf conf/job-local.xml copy demo.input output/

Yarn Mode

Set the configs for the migration source and target, then run following cmds:

hadoop jar target/galaxy-fds-migration-tool-1.0-SNAPSHOT-jar-with-dependencies.jar com.xiaomi.infra.galaxy.fds.migration.Migration -conf conf/job-yarn.xml list hdfs:///user/input/fileList
hadoop jar target/galaxy-fds-migration-tool-1.0-SNAPSHOT-jar-with-dependencies.jar com.xiaomi.infra.galaxy.fds.migration.Migration -Dmapreduce.job.user.classpath.first=true -Dmapreduce.application.classpath="./" -conf conf/job-yarn.xml copy hdfs:///user/input hdfs:///user/output

TODO

• Support other object/File storage systems like HDFS, Azure Blob Storage and Aliyun OSS.