dCache 1.9.1-9 Release Notes

dCache 1.9.1-9 is a maintenance release.

Updates on pools: A regression that broke pool compatibility was fixed, see the upgrade instructions below. A bug in the migration module that affected target pool selection was fixed. For protocols that provide a checksum over the data connection (e.g. DCAP), this checksum is now respected, thus fixing a regression in the 1.9.1 pool code. Robustness of pool startup was improved for the Berkeley DB backend.

Updates on doors: Xrootd compatibility for the Alice project was improved. The choice of GridFTP 1 or GridFTP 2 is now registered in billing.

Updates on head nodes: A regression that broke pool compatibility was fixed, see the upgrade instructions below.

Upgrade Instructions

Please make sure to read the upgrade instructions of intermediary releases when upgrading from a release earlier than 1.9.1-8.

We distinguish between pool components and head nodes. Any component which is not a pool is considered a head node, including doors. The following table shows compatibility between different releases.

1.9.1-9 Head1.9.1-9 Pool
Head 1.9.0-xno yes
1.9.1-1..7,9yesyes
1.9.1-8yesyes[1]
1.9.2-1..5no yes
1.9.2-6no yes[1]
1.9.2-7no yes[1]
Pool 1.9.0-xyesyes
1.9.1-1..7,9yesyes
1.9.1-8yes[1]yes
1.9.2-1..5yesyes
1.9.2-6yes[1]yes
1.9.2-7yes[1]yes
  1. The migration module will not work for -target=pgroup and -target=link.

Changelog