We are in the process of migrating services to use Node 4.2. Some of them, most notably Graphoid and Mathoid, already strongly depend on it. So we need to move the BetaCluster instances to Jessie and upgrade them to Node 4.2.
=== Task list ===
[x] ~~Upgrade Node on `deployment-restbase02`~~
[x] ~~Shift clients from `deployment-restbase01` to `deployment-restbase02`~~
[x] ~~Reconfigure Cassandra temporarily to use `consistency = one`~~
[x] ~~Re-image `deployment-restbase01` to Jessie~~
[x] ~~Re-deploy Cassandra and RESTBase on `deployment-restbase01` and reconfigure Cassandra back~~
[x] ~~Re-image `deployment-mathoid` and redeploy~~
[x] ~~Re-image `deployment-cxserver03` and redeploy~~ cxserver moved to deployment-sca0x
[ ] Re-image `deployment-parsoid05` and redeploy
[x] ~~Re-image `deployment-sca01` and redeploy~~
[x] ~~Re-image `deployment-sca02` and redeploy~~