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release-notes-4.1
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HTML header: <title>dCache 4.1 Release Notes</title>
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<h1>What's new in dCache 4.1<br/>
<small>Release notes</small></h1>
</div>
## Highlights
File transfers using GridFTP can now reuse TCP connections, which makes them faster and improves
compatibility with the Globus transfer service.
This release of dCache introduces a new approach to external messaging. With the introduction
of Apache-Kafka as a message transport, for now in Billing, we start switching to a more modern
and efficient messaging system. The goal for the Billing service is easier inclusion with
systems like Elasticsearch: Instead of adding messages to a textual log and having an external
component parse that log, a Kafka-aware ingester can import them directly into the remote
system.
Various administrative tasks are now possible for users with
the 'admin' role using frontend.
The frontend REST API is documented with Swagger, allowing the
auto-generation of clients.
The frontend also now comes with a built-in web-browser based Swagger
client.
The configuration of several components has been simplified. For example, creating LDAP-only setups
for gplazma now only requires the configuration of a single plugin, `ldap`.
## Incompatibilities
- Starting from version 4.1 dCache head nodes are incompatible with pools older that 3.0.
- NFSv4.1/pNFS is not compatible with older linux kernels when used with flexfile layout.
As a result, by updating to dCache-4.1 a new export options can be used to enforce layout
driver. If nothing is specified, then nfsv4_1_files only is offered to the clients. For
linux clients with kernel versions starting from 4.14 as well as RHEL-7.5 is flexfile layout
is recommended.
```
/ moder_client_host(rw,lt=nfsv4_1_files:flex_files)
```
The **nfs.pnfs.layouts** property is obsolete in favour of **lt=** export option.
### Acknowledgements
Once again, we have received important code contributions from our users.
Thanks to Christoph Anton Mitterer for his constributions.
We would like to thank the students of HTW Berlin Alexandra Konovalova, Hagen Wittlich and Marcus Kopp,
for their contributions during the HTW course.
## Release 4.1.43
### pool
Attempting to start a full checksum scan (with `csm check *`) while an
existing scan is still running is no longer reported as a bug.
### Changelog 4.1.42..4.1.43
<!-- git log 4.1.42..4.1.43 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[f1020142ba](https://github.com/dcache/dcache/commit/f1020142bae50f410c27428e543b7fc3a534178b)
: [maven-release-plugin] prepare release 4.1.43
[6a1ea2f940](https://github.com/dcache/dcache/commit/6a1ea2f940aed5cabd929cdd863cb2e8952d68ee)
: pool: avoid IllegalStateException in 'csm check *' command
[d39b791553](https://github.com/dcache/dcache/commit/d39b7915539d6dc6ef78c3c556e2bbc5c37db4c0)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.42
### alarms
To ease troubleshooting, the POOL_DEAD alarm message now includes the pool name.
### pinmanager
A bug was fixed where PinManager's `bulk ls` admin command yielded a
NullPointerException if the optional argument was omitted.
A typo prevented the error message "Remote connection failure while unpinning..." from
appearing completely and correctly in the logs. The error message string now contains
the message string of the underlying Exception, hopefully providing helpful details for
troubleshooting.
### pool
A regression that prevented a replica's last access time from being updated was fixed.
A regression that prevented a replica's position in the LRU queue for garbage collection from being updated was fixed.
### webdav
Users asserting the "admin" role would occasionally receive
NullPointerExceptions when trying to transfer files through
WebDAV. This release fixes that issue.
### Changelog 4.1.41..4.1.42
<!-- git log 4.1.41..4.1.42 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[c3dd241ee0](https://github.com/dcache/dcache/commit/c3dd241ee06c459dadea0cc8abe1f22ac47467cf)
: [maven-release-plugin] prepare release 4.1.42
[f0492bed39](https://github.com/dcache/dcache/commit/f0492bed39138e4f22777e6046e375ed50bf8b6b)
: UnpinProcessor: fix assumed typo `{)`
[8d47367472](https://github.com/dcache/dcache/commit/8d4736747230d39e0b8840dcfb80f0f3b9ef6559)
: webdav: allow transfers as user with role 'admin'
[1c04c3376d](https://github.com/dcache/dcache/commit/1c04c3376d4373970f44daec461c7f071ed84eb1)
: pinmanager: avoid NPE if no argument given for 'bulk ls' command
[53d12c8e3b](https://github.com/dcache/dcache/commit/53d12c8e3b1443ca76469e5cdf61e01b04eb6c29)
: alarms: add pool name to POOL_DEAD alarm
[18eff2bf7b](https://github.com/dcache/dcache/commit/18eff2bf7b6b4b2bc84845a27aa0abd0ac11e5c8)
: pool: fix reordering of removable replicas on access
[c7309cd722](https://github.com/dcache/dcache/commit/c7309cd7223404bf4d868fe9d111b7c5ec577ad6)
: pool: fix storage of replica last access time
[e7fff466cb](https://github.com/dcache/dcache/commit/e7fff466cbd9150c8cf0848f5f23e7281f794a69)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.41
### Changes affecting multiple services
Stage request from unknown locations resulted in NPE in dcap and pinmanager services.
this is now fixed and using `dccp` to stage a file should work even if the location is unknown. '--'
### resilience
The current release fixed race condition on replica state and no `inaccessible file errors` occures for a newly written file.
### Changelog 4.1.40..4.1.41
<!-- git log 4.1.40..4.1.41 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[50c89ff](https://github.com/dcache/dcache/commit/50c89ff1b33db52f3d77d0a974078231fe7fb05b)
: [maven-release-plugin] prepare release 4.1.41
[b1bd482](https://github.com/dcache/dcache/commit/b1bd482ec32106132f0068b006d2afb23c76b93f)
: dcap/pinmanager: stage request for unknown location results in NPE
[cfe24ef](https://github.com/dcache/dcache/commit/cfe24efc316d08de318ff814e82a6222cfd3a181)
: dcache-resilience (stable branches): fix race condition on replica state
[f948fb1](https://github.com/dcache/dcache/commit/f948fb19235ff608e2d272fd0df1eef1359a0bb9)
: [maven-release-plugin] prepare for next development iteration
[3803f65](https://github.com/dcache/dcache/commit/3803f6540ca6e898229a9a9f95c96a7d6b8bbb4a)
: resilience: adjust synchronization of file operation removal from map
## Release 4.1.40
### pool
An unhelpful error message "Parameter `directory` is not a directory" is
replaced with one that provides information on which directory is
missing.
Update error messages (previously "Could not create mover") to provide
more information about why the mover could not be created.
The pool no longer logs configuration or deployment problems that
prevent the pool from creating a mover as if that problem was a bug.
The current release fixed certain error cases, where a pool is unable to create a mover are no
longer logged as a bug in dCache.
### transfermanager
The current release fixed a NPE if transfer was cancelled.
### Changelog 4.1.39..4.1.40
<!-- git log 4.1.39..4.1.40 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[a81d695](https://github.com/dcache/dcache/commit/a81d69511eb87c60bef681920a5f34106f7904b0)
: [maven-release-plugin] prepare release 4.1.40
[1907425](https://github.com/dcache/dcache/commit/1907425f8d0e5c4b585cdbc7f86725530392f97e)
: pool: avoid throwing a RuntimeException for non-bugs
[8bfd05c](https://github.com/dcache/dcache/commit/8bfd05ceb04a3e12154c7f46d228567d60852fa6)
: pool: avoid log-and-throw anti-pattern
[7661f70](https://github.com/dcache/dcache/commit/7661f70578ec090b1a5d06b3a21c67419689f965)
: transfermanager: avoid NPE on shutdown
[354f955](https://github.com/dcache/dcache/commit/354f955ea1459f13fdbb60249a8de405a15b35c7)
: pool: throw exception with meaningful error message
[e6ac348](https://github.com/dcache/dcache/commit/e6ac3489b06ab9ce7f0cfee61facf63f2787d304)
: pool: update error messages to make them distinct
[668b305](https://github.com/dcache/dcache/commit/668b3053e48bc9814e55b3e6c5d9bc9f8f80ed1b)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.39
### pool
The current release improved time formatting for Json mover info.
### Changelog 4.1.38..4.1.39
<!-- git log 4.1.38..4.1.39 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[66c2ab3](https://github.com/dcache/dcache/commit/66c2ab3c8318fe6200d67c7be67da8deb26cb1eb)
: [maven-release-plugin] prepare release 4.1.39
[ff956d5](https://github.com/dcache/dcache/commit/ff956d566511cd46021e8430bcb422ca5044177b)
: pools: JSON mover info timeInSeconds should be timeInMilliseconds
[32b21a5](https://github.com/dcache/dcache/commit/32b21a5e274402216b57675dc9dc8a38a80cbb36)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.38
### dcache
Jetty version is updated to 9.4.12.v20180830.
### resilience
It is now possible to record resilience activity (on the receiving
end), which may prove useful in understanding
behaviour.
In rare circumstances dark removes can result in data loss by
removing of all replicas for a given file. The current release fixed the issue.
Pool operations now can successfully be restarted from the
command line after they have been shutdown, without
restarting resilience.
### Changelog 4.1.37..4.1.38
<!-- git log 4.1.37..4.1.38 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[e28f2f2](https://github.com/dcache/dcache/commit/e28f2f2cb895af15b1047f5b86655f7a12518822)
: [maven-release-plugin] prepare release 4.1.38
[4ef1910](https://github.com/dcache/dcache/commit/4ef19108adf8c6e7ee81939b3d88f96d45e743da)
: resilience: update state on pool operations when restarted from admin command
[96d6fc7](https://github.com/dcache/dcache/commit/96d6fc7105784839b7c99400faff53c2c9096f34)
: chimera-shell: fix class cast of extractor in constructor
[24db9e6](https://github.com/dcache/dcache/commit/24db9e66e9d96ad0b67a39371de574bfa4b2a240)
: libs: update jetty version to 9.4.12.v20180830
[485ef68](https://github.com/dcache/dcache/commit/485ef68e0d68c80dbc2998e65ea50adbd55b8dfc)
: resilience: do simple existence check of replica on pool to avoid dark removes
[85a15c7](https://github.com/dcache/dcache/commit/85a15c7bde68916ecf4aac0deeb57ba788f8de00)
: Fixed method name error (getPool() -> getPoolName()) compilation error
[b5d405a](https://github.com/dcache/dcache/commit/b5d405a26b89d9a9ee3917ff60dc52e56d331c88)
: [maven-release-plugin] prepare for next development iteration
[5928fb7](https://github.com/dcache/dcache/commit/5928fb7221e871400f36fbe1867a6ba314ee9c33)
: resilience: add ability to log resilience activity (incoming)
[c302851](https://github.com/dcache/dcache/commit/c302851393c0a9214c7819de4fe7abfec9b41c55)
: resilience: add ability to log resilience activity
## Release 4.1.37
### webdav
The current release fixed resource name for door root error.
### Changelog 4.1.36..4.1.37
<!-- git log 4.1.36..4.1.37 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[f756896](https://github.com/dcache/dcache/commit/f75689645bbc4ffc3e934ec278d4a6359eaadafb)
: [maven-release-plugin] prepare release 4.1.37
[10c5a76](https://github.com/dcache/dcache/commit/10c5a76e6777d6f1e3e0c88345d4e19838c69062)
: webdav: fix resource name for door root
[788f7f5](https://github.com/dcache/dcache/commit/788f7f56f5d9e6ad61551b720f0d14b679c3884d)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.36
### ftp
Now clients can request the checksum value of a file not owned by that
user and where dCache does not already know the checksum value.
### pool
The current release fixed some logging on the pool where messages were recorded against an
arbitrary context (i.e., the bit in square brackets), resulting in
misleading information.
### Changelog 4.1.35..4.1.36
<!-- git log 4.1.35..4.1.36 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[015c55b](https://github.com/dcache/dcache/commit/015c55baec1cfd35ac0f9b4fe447aefab8a05b81)
: [maven-release-plugin] prepare release 4.1.36
[bd1cbc9](https://github.com/dcache/dcache/commit/bd1cbc9df663ce372a39ca6c78959673bfacaf17)
: pool: fix CDC for repository listener notification
[044f0fe](https://github.com/dcache/dcache/commit/044f0fef3dc7478ffcdcc4ecce409bb9d282958f)
: ftp: store calculated checksum using root privileges
[e76c9c1](https://github.com/dcache/dcache/commit/e76c9c16e29ff1c7345ae41948eda3bfb96546ba)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.35
### webdav
When users request a macaroon via an HTTP POST request targeting
a specific path, a caveat is created that restricts the macaroon
to that path (requests to / result in a non-limited macaroon).
Commit 99c726e3 resulted in users getting back a non-limited
macaroon for every request. This issue was fixed with this
release.
### Changelog 4.1.34..4.1.35
<!-- git log 4.1.34..4.1.35 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[2aec4f2f34](https://github.com/dcache/dcache/commit/2aec4f2f34b25ab219b7fae1f3350138f8f58557)
: [maven-release-plugin] prepare release 4.1.35
[ebbe61de6a](https://github.com/dcache/dcache/commit/ebbe61de6acf32dbeaa14be8437f0aa96def7aa6)
: systemtest: fix OpenSSL DN format change
[4562cf2ef1](https://github.com/dcache/dcache/commit/4562cf2ef11249298f3c12a3f96956d6693db88a)
: webdav: fix path-to-caveat for macaroon minting endpoint
[fd04861a37](https://github.com/dcache/dcache/commit/fd04861a3745da960cd133e98a90b34e756dd82c)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.34
### alarms
Pool errors involving a fatal repository fault, for
instance, can be sent now as an email alarm without
having to send all pool disabled alarms.
### dcache-view
Troubles when using firefox and/or safari to browse dcache-view were reported. This is now fixed.
### gplazma
The JAAS gplazma plugin no longer logs a stacktrace on bad configuration.
### pool
The current release improved error messages making them clearer by avoid using the same error message in multiple places.
### srm
A stack-traces fixed for concurrent updates in pin-manager and similar
(expected) failures.
### transfermanager
Now Third-party transfers fail if the client is requesting to copy a file
from dCache that has not fully been uploaded.
### webdav
Disabling basic authn should not now disable macaroons. The current release fixed `webdav.authn.basic` and `frontend.authn.basic` so that setting
these configuration properties to `false` no longer blocks macaroons from being accepted in the HTTP Authorization header.
The current release impoved error messaging for unauthenticated request.
IllegalArgumentException exception is fixed now and attempts by a client to copy a file that has not fully been uploaded
results in a clear error response.
### Changelog 4.1.33..4.1.34
<!-- git log 4.1.33..4.1.34 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[5204213](https://github.com/dcache/dcache/commit/520421375c3b424c852799a8cc441d1499bf50ea)
: [maven-release-plugin] prepare release 4.1.34
[a870620](https://github.com/dcache/dcache/commit/a870620055a85172b6d824db512dcbb141e09809)
: webdav/frontend: disabling basic authn should not disable macaroons
[70698bc](https://github.com/dcache/dcache/commit/70698bcec6e1c3f9ca6201ca9e242797d38946f9)
: srm: do not log a stack-trace on expected Exception errors
[710892a](https://github.com/dcache/dcache/commit/710892a349e9be2615618a5766353b1c59647c2c)
: transfermanager: fail third-party copy if the file is still being uploaded
[0f41262](https://github.com/dcache/dcache/commit/0f41262ee61b8e65547a7a73ad1897835082f59f)
: webdav: fail COPY early if file is currently being uploaded
[429daff](https://github.com/dcache/dcache/commit/429daff23526d47e128c432b4f14e6c3b6298085)
: transfermanager: abort transfer if there is a bug
[356ff03](https://github.com/dcache/dcache/commit/356ff03593d5a853551e5464dc615cdb2aa1df9c)
: gplazma: JAAS plugin logs a stack-trace on misconfiguration
[1ecc08c](https://github.com/dcache/dcache/commit/1ecc08c32355523aff5bd6a484466b807e0a43a9)
: pool: avoid using the same error message in multiple places
[cf2fde5](https://github.com/dcache/dcache/commit/cf2fde563ac0c6d4fc5654661d1bff1bdbde257b)
: alarms: add pool dead alarm
[bdf0fc9](https://github.com/dcache/dcache/commit/bdf0fc9101596969a7a5ef0ecd35a4a6ed8cfa7d)
: [maven-release-plugin] prepare for next development iteration
[e3c1ffb](https://github.com/dcache/dcache/commit/e3c1ffb45e11557b44adcb48a1f1144c19ba6ad8)
: pool: don't update atime on flush
[8dd48e4](https://github.com/dcache/dcache/commit/8dd48e4a4aabf2be73b296aa2dbcaac208926291)
: scripts: fix 'dcache pool yaml' command
[d54104f](https://github.com/dcache/dcache/commit/d54104f66e8c083085a0bcc9b97fb554a7ff3011)
: webdav: 401 for unauthenticated requests; message in status line
[0c8045e](https://github.com/dcache/dcache/commit/0c8045e5afcc60bdfe7f2801968d06c6b23d8de2)
: dcache, frontend: release dcache-view version 1.4.8
## Release 4.1.33
### dcache-frontend
The current release added documentation concerning restores.
### ftp
The current release fixed MLSC command for non-small directories and Globus is now able to list directories with > 100 directories.
### Changelog 4.1.32..4.1.33
<!-- git log 4.1.32..4.1.33 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[26e32b0](https://github.com/dcache/dcache/commit/26e32b03562c775d69d736d3ac550834fda72a46)
: [maven-release-plugin] prepare release 4.1.33
[12ea15a](https://github.com/dcache/dcache/commit/12ea15a41608a6af075fab9460b0ea1fd58ceb2c)
: ftp: fix MLSC command for non-small directories
[534595a](https://github.com/dcache/dcache/commit/534595add38bf3606868149120f828c33c08d7aa)
: dcache-frontend: add documentation concerning restores
[90310c1](https://github.com/dcache/dcache/commit/90310c1eafa7502dbc4496d60a84da1d8cf244c0)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.32
### billing
Database connection loss now is reported for billing.
### webdav
The current release fixed the problem where all but one requests fail, if multiple concurrent PUT requests have directories in the path that do not already exist.
### Changelog 4.1.31..4.1.32
<!-- git log 4.1.31..4.1.32 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[65742b3](https://github.com/dcache/dcache/commit/65742b3a3e16f8d742f488000a16dd16556cbebe)
: [maven-release-plugin] prepare release 4.1.32
[b0f6314](https://github.com/dcache/dcache/commit/b0f6314448307b54e56609272e24258071b90117)
: dcache: wrap billing data source with AlarmEnabledDataSource
[06de91f](https://github.com/dcache/dcache/commit/06de91fd97f9333c697c90e1d08e78ac09ac9804)
: common: fix random data generation in TimeseriesHistogram unit test
[dccb333](https://github.com/dcache/dcache/commit/dccb33339ced6bd41892bce531ba269c5c8d1e34)
: webdav: work-around Milton racy API for creating collections
[789d99d](https://github.com/dcache/dcache/commit/789d99dd3220e9ceb7777b26a8a48c1b03c04f93)
: webdav: fix name of root
[649d857](https://github.com/dcache/dcache/commit/649d857b86ecf8c9fbc7c0189746d50f264ae948)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.31
### dcache-view
The following new functionalities have been added for dCache View:
Now it is possible to use macaroon for file sharing.
Files can be shared by sending the generated link, QR code or macaroon for the files to the person you want to give access to your files.
Gravatar request is now make optional and how the images are stored are now more efficient to reduce the number of request made.
### gplazma
Since update to newer BC and voms-java-api libraries
sites report VOMS certificate validation errors like
This is now fixed.
### srm
iThe `dcache ports` command now includes the srm's TLS/SSL interface.
### Changelog 4.1.30..4.1.31
<!-- git log 4.1.30..4.1.31 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[bd315b0](https://github.com/dcache/dcache/commit/bd315b06205f5c8368f735fb0aebaa30ee1c290e)
: [maven-release-plugin] prepare release 4.1.31
[ba68f63](https://github.com/dcache/dcache/commit/ba68f63825d6c3c44f9f9537493e8419ba06c1b5)
: gplazma voms plugin: add trust anchor refresh paramater
[b369668](https://github.com/dcache/dcache/commit/b3696683aacefd5c28a5ab15fdeda4155f7dd63f)
: srm: include TLS/SSL port in 'dcache ports' command
[995f688](https://github.com/dcache/dcache/commit/995f6884569a48046a1b31b304364e3b9dcbf151)
: dcache/frontend: release dcache-view version 1.4.7
[c276c9e](https://github.com/dcache/dcache/commit/c276c9eb73432fdfc5e3d4ea787ed60779bda63a)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.30
### Changes affecting multiple services
The current release corrected the properties for access-log.
### Changelog 4.1.29..4.1.30
<!-- git log 4.1.29..4.1.30 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[1a071a3](https://github.com/dcache/dcache/commit/1a071a39ebef6b540b507de41b5c021710cf8f13)
: [maven-release-plugin] prepare release 4.1.30
[a84db5d](https://github.com/dcache/dcache/commit/a84db5d168c980811f7af3f150792b6fe5264439)
: correct the properties for access-log
[7ce9e23](https://github.com/dcache/dcache/commit/7ce9e233b551a263b1eead798aeda03753504fe6)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.29
### Changes affecting multiple services
If a client specifies a checksum value with either a WebDAV or FTP upload,
a `Restriction check by-passed due to missing path` warning was logged occasionally.
This was fixed now, ensuring that restrictions are always applied.
### pool
Space reservations on pools that are connected to tape showed a problem with
failing restore requests: If a restore failed, the space that was reserved to
hold the file that was supposed to come in from tape was not freed again but
kept in the 'sticky' state. This resulted in lots of unusable space on pools
that could only be reclaimed through a restart.
With the current release, this issue is fixed and space is freed as soon
as possible after a failed restore request.
### resilience
A very rare race-condition is fixed where a failed upload results in
resilience recording a stack-trace.
### webdav
An issue with the Milton WebDAV library prevented Partial (or vector-read) GET requests
from succeeding. This was fixed now through both an update of the dependency and a local
patch while we wait for the proposed fix to be included upstream.
### Changelog 4.1.28..4.1.29
<!-- git log 4.1.28..4.1.29 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[69b1a98226](https://github.com/dcache/dcache/commit/69b1a98226a4a3a62e3346afb4a4394435d006f2)
: [maven-release-plugin] prepare release 4.1.29
[f285e97109](https://github.com/dcache/dcache/commit/f285e97109460393a92e5b287128a1026465981b)
: webdav: fix proxied partial (vector-read) GET requests
[239d9c38ea](https://github.com/dcache/dcache/commit/239d9c38eab87ae3c3938f017083c4f18ff22a83)
: pool: fix pool space accounting on failed restores
[d6f3b6d1e1](https://github.com/dcache/dcache/commit/d6f3b6d1e160d389effb39ad7507dfc902da1d73)
: resilience: fix NPE if file unlinked when resilience processes a broken file
[c399f14ebe](https://github.com/dcache/dcache/commit/c399f14ebe61239e41640cfafc4de5d94eea66b4)
: ftp/webdav: fix bypass of restrictions
[ed5b2f2167](https://github.com/dcache/dcache/commit/ed5b2f2167ec54b1fac7cb51f42a6cdfce7a9e96)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.28
### alarms
An internal issue with the alarms configuration was fixed, which
should prevent a rare NullPointerException from occuring.
### dcap
Creating a file or directory using the DCAP protocol with a URL
as parameter, the file permissions were not set correctly.
With the current release, this was corrected, and such files
use the client-supplied file permissions. If none are provided,
the default modes 0700 (for directories) and 0600 (for files)
are used.
### xrootd
An uncaught exception in xrootd doors was fixed.
### Changelog 4.1.27..4.1.28
<!-- git log 4.1.27..4.1.28 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[f4a8299da1](https://github.com/dcache/dcache/commit/f4a8299da1316d86f5d174071fae7c61b1484e1e)
: [maven-release-plugin] prepare release 4.1.28
[10cd61f23d](https://github.com/dcache/dcache/commit/10cd61f23ddf7b5a96323cc5c3c1dff8999f5925)
: alarms: fix persistence.xml configuration
[2f7260b151](https://github.com/dcache/dcache/commit/2f7260b151fb77a48f687d9469f1882a2772d74b)
: dcap: fix permission propagation with DCAP
[19a502af5f](https://github.com/dcache/dcache/commit/19a502af5f224e74e2700a708fa0e11747f612c7)
: dcache-xrootd: handle possible race condition in directory listing
[25aefdd9b5](https://github.com/dcache/dcache/commit/25aefdd9b5c1c601c3d2a99cdf3b407235beae36)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.27
### statistics
Metadata merge was using max when it should had used min, this is now fixed.
### Changelog 4.1.26..4.1.27
<!-- git log 4.1.26..4.1.27 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[1fa662a](https://github.com/dcache/dcache/commit/1fa662af69e73a54b264975a5e400d03cf778e8d)
: [maven-release-plugin] prepare release 4.1.27
[4fc7fba](https://github.com/dcache/dcache/commit/4fc7fbaabdfd936092c3700357ef1299a790ee6f)
: common: fix histogram metadata merge
[a66a9e3](https://github.com/dcache/dcache/commit/a66a9e340c76004570b846b9bf0df4f79fe923d8)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.26
### dcache-view
The current release added several bug fixes and improvement to dCache view.
### Changelog 4.1.25..4.1.26
<!-- git log 4.1.25..4.1.26 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[b68e311](https://github.com/dcache/dcache/commit/b68e3112bacac40d55a26ede92b1dad2f0cb4e54)
: [maven-release-plugin] prepare release 4.1.26
[51ec9b6](https://github.com/dcache/dcache/commit/51ec9b6355e6a20cfdca659638392b2953a29710)
: [maven-release-plugin] prepare for next development iteration
[113d961](https://github.com/dcache/dcache/commit/113d961db29b1b8f959151b97038524fec6a42b1)
: dcache: release dcache-view version 1.4.6
## Release 4.1.25
### ftp
The current release provides better protection against leaking proxy/data TCP sockets if client
aborts a proxied transfer.
### pool
The current release fixed stopwatch error and now IO-statistics collecting is more robust,
avoiding stack-traces with the message `This stopwatch is already stopped`.
### srm
Clients that use the gridsite protocol, such as davix, can now delegate
their credential.
### Changelog 4.1.24..4.1.25
<!-- git log 4.1.24..4.1.25 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[1d819ee](https://github.com/dcache/dcache/commit/1d819ee706ec8b7d980721788d00b04898ddbad1)
: [maven-release-plugin] prepare release 4.1.25
[ef535ac](https://github.com/dcache/dcache/commit/ef535ac6fe2066b70f116cfdcf3c3a5cc656c978)
: ftp: make shutdown more robust
[f303edf](https://github.com/dcache/dcache/commit/f303edffcdff26138a517f1ea5fa7c2bb93d7f90)
: pool: fix stopwatch error
[72c7bb3](https://github.com/dcache/dcache/commit/72c7bb351068bf10e3bafb6c60ec4f5615b434cf)
: common: fix bug in CountingHistogram index computation
[290a335](https://github.com/dcache/dcache/commit/290a335b5d143eeb751e4abf5122167933cd09bb)
: [maven-release-plugin] prepare for next development iteration
[19150ba](https://github.com/dcache/dcache/commit/19150baa3d569c970892943adb61ea313c7b8b87)
: srm: gridsite fix querying validity of delegated credential
## Release 4.1.24
### ftp
The behaviour of FTP transfers was made more robust in cases where a client
disconnects from the control channel prematurely.
The performance markers that dCache sends back to the client in FTP transfers
are now more robust against bugs.
### nfs
When transient errors in pools cause NFS transfers to have to wait and retry,
the system's behaviour is now more robust and no StackOverflowErrors should be logged any more.
### scripts
Maven's findbugs plugin is now granted more working memory in order
to make builds, especially on our continuous integration system,
more robust.
### srm
Certificate lifetime considerations for VOMS proxy certificates are
improved in this release: if a
client delegates a credential where the VOMS AC expires before the X.509
proxies, dCache now will not use the credential beyond the AC expiry time.
This avoids unnecessary authentication errors.
### webdav
When the WebDAV door is considering an HTTP third-party-copy request
that uses grid-site delegation, there is a minimum 20 minute validity
that any existing delegated credential must satisfy. If this is not
satisfied then dCache will request a fresh delegated credential.
Until now, if the client failed to delegate a fresh certificate then the
subsequent COPY request was rejected. This release changes that behaviour
and enables such transfers.
### Changelog 4.1.23..4.1.24
<!-- git log 4.1.23..4.1.24 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[62456f1976](https://github.com/dcache/dcache/commit/62456f19761f7cf2899647cf1b7565888de8a359)
: [maven-release-plugin] prepare release 4.1.24
[e8ffe81e2c](https://github.com/dcache/dcache/commit/e8ffe81e2c1eb54c9118d4ca7c5d93fb75ac01a8)
: scripts: Avoid findbugs memory errors
[4f45c29f8e](https://github.com/dcache/dcache/commit/4f45c29f8e798420646074c6632042d1eb2fe52e)
: nfs: increase request retry delay when selecting/starting pool or mover
[9abaac003c](https://github.com/dcache/dcache/commit/9abaac003ca9ff12b3dbd608b9591c00d11ff484)
: webdav: adjust minimum validity after requesting delegation
[4e7a6646c9](https://github.com/dcache/dcache/commit/4e7a6646c9ca296dd7d06dcce6d3ba86c8c5aeb1)
: srmmanager/webdav: consider VOMS AC validity of delegated credential
[648e13e9cd](https://github.com/dcache/dcache/commit/648e13e9cdc1d5e64d59e2050126a7a868dd938f)
: ftp: make performance marker task robust.
[650542c1b6](https://github.com/dcache/dcache/commit/650542c1b6b1c9fd6adf4c263d97b7f2bf8b7ce4)
: ftp: avoid NullPointerException if adapter is not connected
[4bb1eb2cee](https://github.com/dcache/dcache/commit/4bb1eb2cee4b598445d6a535c17a23069aa8c90e)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.23
### pool
Diagnostic logging for failed HTTP third-party transfers was improved.
Billing records for failed transfers now show more detailed information.
The handling of cancelled flush requests for nearline media
was rewritten to be more efficient. This resolves issues where pools
report "Flush of 0000... failed with: CacheException" followed by
"Pool restart required: Internal repository error".
Compatibility with DPM was improved by increasing HTTP GET requests' timeouts.
This should allow more transfers to succeed.
### poolmanager
Supplying poolmanager with an unresolvable hostname as the target will
now result in an UnknownHostException instead of the previous behaviour
where an (unnecessary) NullPointerException was thrown.
### scripts
The format and content of the Storage Description JSON file have been updated
according to WLCG suggestions:
- 'capacity_id' field is renamed to 'name'
- 'total_space' and 'used_space' renamed to 'totalsize' and 'usedsize'
respectively.
- 'timestamp' field added
- 'vos' field added
- 'assignedendpoints' added. Currently hardcoded to "all".
### srm
Logging of errors in the SRM credential store was improved.
### webdav
If a non-resolvable host name is given as the source or destination
of a third-party copy request, WebDAV will now fail the transfer
immediately instead of waiting for a Poolmanager timeout.
Diagnostic logging for failed HTTP third-party transfers was improved.
### xrootd
dCache allows xrootd clients to specify a query/opaque string in a
kXR_mv request's source path.
### Changelog 4.1.22..4.1.23
<!-- git log 4.1.22..4.1.23 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[c5596cbe10](https://github.com/dcache/dcache/commit/c5596cbe1044e547ec1cc7ab6b8c940d84abe22e)
: [maven-release-plugin] prepare release 4.1.23
[412078eaee](https://github.com/dcache/dcache/commit/412078eaeeadae2ebdd6afd720371ffd10dd5482)
: pool: HTTP TPC rework exception logging
[932b9e838c](https://github.com/dcache/dcache/commit/932b9e838c40e75b1eab7db1a414ff298644bf90)
: pool: increase TPC socket timeout for GET requests
[0df6f3862e](https://github.com/dcache/dcache/commit/0df6f3862ea8eeb920f72604da0176de3a61f128)
: srm: fix credential store logging
[acc5fee6c4](https://github.com/dcache/dcache/commit/acc5fee6c43caa84b114565df3acf711313489b2)
: pool: update log status using exception class name if no message
[45067402ee](https://github.com/dcache/dcache/commit/45067402eed700739796d00f7d9e44dbebb6ff8b)
: storagedescriptor: update information based on WLCG feedback
[0459c95bea](https://github.com/dcache/dcache/commit/0459c95bea6f4ed01f5766c17212faa1d21b8845)
: xrootd: strip off query part from kXR_mv source
[4b91884fee](https://github.com/dcache/dcache/commit/4b91884feeb7889b761e2fc0f22f07592221db8b)
: webdav: fail TPC request early on unknown hostname
[a5dac05b31](https://github.com/dcache/dcache/commit/a5dac05b31888728760a41ad9a2ed330b76da014)
: nearline-provider: do not propagate thread interrupt flag
[0a5ff9e2fd](https://github.com/dcache/dcache/commit/0a5ff9e2fda777802b57d6e1b224d888ed769d88)
: poolmanager: fix NPE on unknown host
[267bbc9938](https://github.com/dcache/dcache/commit/267bbc993895dd8660ec44b3cb4f46f0b88c6acd)
: webdav: improve logging of TPC requests
[cb4b1bde42](https://github.com/dcache/dcache/commit/cb4b1bde42e6d66e7784ed1b19ad8bfa4ca24cb2)
: [maven-release-plugin] prepare for next development iteration
## Release 4.1.22
### Changes affecting multiple services
In order to more easily identify a rejected macaroon in the logs, its ID is now included in the log message.
An irrelevant stacktrace was logged on unexpected CacheExceptions. This
was removed, leading to less clutter in the logs.
Different macaroons that were issued against the same secret are now discernible in the logs.
Users now get more information about the reasons why an invalid macaroon was
rejected: HTTP requests that are made with an invalid macaroon have a 401 HTTP
response with the status-line explanation phrase that describes why the
macaroon is invalid.
The access log file also logs why a macaroon was rejected.
### core
A library dependency was updated to avoid [CVE-2018-11771](https://nvd.nist.gov/vuln/detail/CVE-2018-11771). This patch introduces no user-visible changes.
### frontend
[Github issue #4242](https://github.com/dCache/dcache/issues/4242) was resolved;
cell information can now be be gathered using the REST interface without
specifying domains.
### gplazma
Invalid macaroon logins no longer "spam" gPlazma.
### pnfsmanager
When creating a macaroon to allow uploading of data, the desired path
may not already exist. Without restrictions, WebDAV will auto-create
parent directory items that are missing, or the client can create these
directory elements explicitly with MKCOL.
With restrictions (such as from a macaroon) such directory creation