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.
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 Head | 1.9.1-9 Pool | ||
|---|---|---|---|
| Head | 1.9.0-x | no | yes |
| 1.9.1-1..7,9 | yes | yes | |
| 1.9.1-8 | yes | yes[1] | |
| 1.9.2-1..5 | no | yes | |
| 1.9.2-6 | no | yes[1] | |
| 1.9.2-7 | no | yes[1] | |
| Pool | 1.9.0-x | yes | yes |
| 1.9.1-1..7,9 | yes | yes | |
| 1.9.1-8 | yes[1] | yes | |
| 1.9.2-1..5 | yes | yes | |
| 1.9.2-6 | yes[1] | yes | |
| 1.9.2-7 | yes[1] | yes |