Nexus 2.15 upgrade to nexus 3 latest consuming a large amount of memory and stuck since hours

Sonatype Nexus Repository
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1

Hello,
I’m upgrading my OSS nexus repository from version 2.15.1-02 to 3.39.0-01
I’m using docker as my installation method and volumes to persist data
I’m using the download method to transfer 60 GB of data from nexus 2 to nexus 3 server
nexus 2 and nexus 3 are on different machines

the migration process always gets stuck after a while and it shows me this message : " X days and Y hours since last change, press continue when ready"
I had at the beginning 4 GB of RAM on the nexus 2 machine and it was all consumed by the container
I decided to double the RAM and now I have 8 GB of RAM but it’s also consumed totally by the nexus container.

My questions are:

  • How much RAM does the migration process needs?
  • How long does it take approximately to transfer 60 GB of data using the download method?
2

The help documentation for both versions should have system requirements.

Your other question can’t be answered - its entirely dependent upon your systems & network.

It doesn’t sound ‘stuck’, it sounds like the existing files have been migrated and Nexus is waiting until you decide to continue.