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Difference between revisions of "Preview 2.31.0"

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The [http://www.nordugrid.org/arc/ Advanced Resource Connector (ARC) middleware] is an Open Source software solution to enable distributed computing infrastructures with the emphasis on processing large volumes of data. ARC provides an abstraction layer over computational resources, complete with input and output data movement functionalities. The security model of ARC is identical to that of Grid solutions, relying on delegation of user credentials and the concept of Virtual Organisations. ARC also provides client tools, as well as API in C++, Python and Java.
The [http://www.nordugrid.org/arc/ Advanced Resource Connector (ARC) middleware] is an Open Source software solution to enable distributed computing infrastructures with the emphasis on processing large volumes of data. ARC provides an abstraction layer over computational resources, complete with input and output data movement functionalities. The security model of ARC is identical to that of Grid solutions, relying on delegation of user credentials and the concept of Virtual Organisations. ARC also provides client tools, as well as API in C++, Python and Java.
After the brief release of ARC 6.10.0 and the retraction quickly after, this release tackles the slowness encountered from the hashing code related to Bug [http://bugzilla.nordugrid.org/show_bug.cgi?id=3980 3980] (GDPR). We at the same time spotted a problem in the accounting code which also has been fixed, see Bug [http://bugzilla.nordugrid.org/show_bug.cgi?id=3992 3992].
'''Highlights in this release'''
There are two important updates in this release. The first handles the submitter information in regards to GDPR, and the second fixes a bug causing AREX to crash.
* Submitters certificate DN and GDPR (Bugzilla [http://bugzilla.nordugrid.org/show_bug.cgi?id=3980 3980]).
With ARC 6.10 the submitters DN is now exposed in a hashed format. This means that ARC no longer publishes the submitters DN in clear text and therefore complies with GDPR regulations. '''Note that the ''arcsync'' command from ARC clients version <= 6.9.0 will not work''', as the DN's no longer will match. Updating the ARC client is required for arcsync to work.
* AREX crashes related to the security processing in AREX (Bugzilla [http://bugzilla.nordugrid.org/show_bug.cgi?id=3978 3978]).
Some sites experienced regular AREX crashes with the ARC 6.9.0 release. This was due to a bug in the code which handled the detection of failure in the security processing. This is now fixed.
In addition to these important changes, the release contains several other bugfixes and improvements as can be seen in the list of adressed Bugzilla tickets below.


= CVMFS 2.7.5 and egi-cvmfs-2-7.12 =
= CVMFS 2.7.5 and egi-cvmfs-2-7.12 =

Revision as of 10:03, 19 February 2021

Back to repository configuration

TO UPDATE

APEL-SSM 3.0.1

Secure STOMP Messenger (SSM) is designed to simply send messages using the STOMP protocol or via the ARGO Messaging Service (AMS). Messages are signed and may be encrypted during transit. Persistent queues should be used to guarantee delivery.

SSM is written in Python. Packages are available for RHEL 7 and Ubuntu Trusty.

The installation and configuration guide is available here: https://github.com/apel/ssm

Check also the EGI wiki for more information about APEL SSM.

Release notes:

  • As part of the migration to Python 3, this release removes support for Python 2.6.
  • The argo-ams-library is now an optional module, depending on whether the Argo Messaging Service is used or not.
  • Fixed how the use_ssl config option is retrieved to avoid "referenced before assignment" errors leading to SSM failing to run.
  • Changes made to messaging loops to avoid high CPU usage.

ARC 6.10.1

The Advanced Resource Connector (ARC) middleware is an Open Source software solution to enable distributed computing infrastructures with the emphasis on processing large volumes of data. ARC provides an abstraction layer over computational resources, complete with input and output data movement functionalities. The security model of ARC is identical to that of Grid solutions, relying on delegation of user credentials and the concept of Virtual Organisations. ARC also provides client tools, as well as API in C++, Python and Java.

After the brief release of ARC 6.10.0 and the retraction quickly after, this release tackles the slowness encountered from the hashing code related to Bug 3980 (GDPR). We at the same time spotted a problem in the accounting code which also has been fixed, see Bug 3992.

Highlights in this release

There are two important updates in this release. The first handles the submitter information in regards to GDPR, and the second fixes a bug causing AREX to crash.

  • Submitters certificate DN and GDPR (Bugzilla 3980).

With ARC 6.10 the submitters DN is now exposed in a hashed format. This means that ARC no longer publishes the submitters DN in clear text and therefore complies with GDPR regulations. Note that the arcsync command from ARC clients version <= 6.9.0 will not work, as the DN's no longer will match. Updating the ARC client is required for arcsync to work.

  • AREX crashes related to the security processing in AREX (Bugzilla 3978).

Some sites experienced regular AREX crashes with the ARC 6.9.0 release. This was due to a bug in the code which handled the detection of failure in the security processing. This is now fixed. In addition to these important changes, the release contains several other bugfixes and improvements as can be seen in the list of adressed Bugzilla tickets below.

CVMFS 2.7.5 and egi-cvmfs-2-7.12

The CernVM File System provides a scalable, reliable and low-maintenance software distribution service. It was developed to assist High Energy Physics (HEP) collaborations to deploy software on the worldwide-distributed computing infrastructure used to run data processing applications. CernVM-FS is implemented as a POSIX read-only file system in user space (a FUSE module). Files and directories are hosted on standard web servers and mounted in the universal namespace /cvmfs.

Release notes

CernVM-FS 2.7.5 is a patch release. It contains bugfixes and improvements for Ubuntu clients and servers. Please see detailed release notes in the technical documentation.

dCache 5.2.35

dCache provides a system for storing and retrieving huge amounts of data, distributed among a large number of heterogeneous server nodes, under a single virtual filesystem tree with a variety of standard access methods.

Detailed release notes on the official product site: https://www.dcache.org/downloads/1.9/release-notes-5.2.shtml

DMLite/DPM 1.14.2

The Disk Pool Manager (DPM) is a lightweight storage solution for grid sites. It offers a simple way to create a disk-based grid storage element and supports relevant protocols (SRM, gridFTP, RFIO) for file management and access. It focus on manageability (ease of installation, configuration, low effort of maintenance), while providing all required functionality for a grid storage solution (support for multiple disk server nodes, different space types, multiple file replicas in disk pools)

N.B. the gridftp and http frontends are now build together with the dpm core, so they have new package names

  • lcgdm-dav -> dmlite-apache-httpd
  • dpm-dsi -> dmlite-dpm-dsi

as well as the xrootd frontend starting from v 1.12: dpm-xrootd -> dmlite-dpm-xrootd

Dynafed 1.6.0

The Dynamic Federations system allows to expose via HTTP and WebDAV a very fast dynamic name space, built on the fly by merging and caching (in memory) metadata items taken from a number of (remote) endpoints. More information.

STORM 1.11.19

The StoRM Product Team is pleased to announce the release of StoRM 1.11.19 that includes the following updated components:

This release mainly:

  • fixes a bug introduced with StoRM v1.11.18 about the final update of the status on database of a srmPtG or srmBoL requests;
  • introduces new metrics in storm-backend-metrics.log;
  • fixes a storm-webdav bug about the returned body content in case of HEAD requests.

Please, follow the upgrade instructions.

Read the release notes for more details.

VOMS 10-20 release

This new release for several VOMS components fixing outstanding bugs and providing new features. With this release all VOMS components are now ported to CENTOS 7.

The updated components are:

Please have a look at the release notes for more details.

xrootd 4.12.5 and 5.0.3

XRootD software framework is a fully generic suite for fast, low latency and scalable data access, which can serve natively any kind of data, organized as a hierarchical filesystem-like namespace, based on the concept of directory. As a general rule, particular emphasis has been put in the quality of the core software parts.

Detailled release notes: