Hi ~okeanos users,

Recently ~okeanos service faced some disruptions, as we informed you on a previous blog post. Let's shed some light on what caused them.

The ~okeanos storage backend (Archipelago) is backed by Ceph, an open-source distributed software-defined storage solution. On Friday, September 9, at 9 p.m., Object Storage Daemons (OSDs) of the RADOS cluster became unstable resulting in the cluster erroneously marking OSDs as down. This incident led to I/O freeze and cluster malfunctioning. In order to ensure data integrity, we had to resort to special handling and tooling and managed ... read more

UPDATE: All works completed successfully

We'd like to inform you about scheduled maintenance/upgrade for ~okeanos service between 09:00 EET and 11:00 EET on Wednesday, October 19.

Your VMs and Pithos+ files should remain unaffected. Maintenance is expected to cause minor disruptions to the ~okeanos service. Astakos, Cyclades and Pithos+ Web UIs and their APIs will be unavailable for a short time during the upgrade.

No loss of connectivity is expected for the VMs.

Hello ~okeanos users,

We are happy to announce that on Wednesday, September 21 2016 between 09:00 and 11:00 EET we will be doing a major upgrade to the ~okeanos service, with a new version of the Synnefo software.

During the upgrade Astakos, Cyclades and Pithos+ Web UIs and their APIs will be unavailable. Your VMs and Pithos+ files should remain unaffected.

After the upgrade, you will be able to enjoy more robust services with several improvements and additions across ~okeanos, as well as some pithos+ performance enhancements.

Last but not least, don't forget to check out our ... read more

UPDATE: Everything is operating normally. If you still encounter any problems, please let us know at support@okeanos.grnet.gr

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Dear ~okeanos users,

From Friday September 9, at 9 p.m., we have observed some functionality problems that affect a number of Virtual Machines as well as Pithos+.
We are working hard in order to resolve the issue as soon as possible.

We apologise for the inconvenience,
the ~okeanos team

Beware! An ~orka is now "swimming" in the ~okeanos waters, representing what else? Big Data!

~okeanos and big data analytics can now be combined using the Hadoop ecosystem over the ~orka Platform.
But what does this practically mean? Well, now you can easily configure, spawn and maintain big data deployments in ~okeanos choosing from a variety of mature, well established tools and solutions around the Hadoop 2.x (YARN) ecosystem.
Select the flavours you need for master and slave nodes and move on to manage your cluster. Forgot to mention though; ~orka runs out-of-the-box: No ... read more