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release-notes-2.11
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HTML header: <title>dCache 2.11 Release Notes</title>
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<h1>What's new in dCache 2.11<br/>
<small>The release notes</small></h1>
<address>
<strong>Authors</strong><br/>
Paul Millar <[email protected]>
</address>
</div>
## Executive summary
* Faster deletion speeds
* Better integration of alarms service, easier configuration, and predefined alarms
* Multiple GIDs in kpwd
* Less clutter in GLUE 2 StorageShare
* Improved pool response during HSM request bursts
* Reduced latency on write
* Automatic throttling of SRM request rate when database request queue is full
* Decoupling of transfer managers from srm database
## Incompatibilities
This section describes potential incompatibilities with previous
versions of dCache.
### Configuration properties
All properties marked forbidden or obsolete are now no longer
recognised by dCache. All properties that were deprecated in 2.10 are
now marked forbidden.
## Release 2.11.51
### Changes affecting multiple services
Fixed an issue with the dcache heap `dump command` when called with a simple file name as the output path.
In this case the dump could in some cases be written to a different directory while the script claimed the dump had failed.
The dcache dump heap command has a `--force` option for cases in which the
JVM is unresponsive. This option was ignored for processes not running
as root.
This is fixed now.
### cells
A bouncing message bug in System cell is fixed.
### pool
Fix race condition in request scheduler.
### Changelog 2.11.50..2.11.51
<!-- git log 2.11.50..2.11.51 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[010e44f](https://github.com/dcache/dcache/commit/010e44f0fda51fd2b2ea539923179964f4ae58e3)
: [maven-release-plugin] prepare release 2.11.51
[a6949c5](https://github.com/dcache/dcache/commit/a6949c58ed93dd496926231a7bed57ec4669f365)
: dcache: fix heap dump to simple file names
[8080ee3](https://github.com/dcache/dcache/commit/8080ee36c547be40f2d02cebff12e6ac56291939)
: script: Make dump heap --force work for non-root processes
[c5a1f6d](https://github.com/dcache/dcache/commit/c5a1f6d7378935ed62e715dbed37450a914d5aa9)
: billing: additional fixes to insert triggers
[9dcb113](https://github.com/dcache/dcache/commit/9dcb11374bff49f3085369e5715437016db2f2b4)
: srm: Do not expose TURL before request is ready
[0038371](https://github.com/dcache/dcache/commit/00383710e81e3d022ab150a1f439cd2cbd1bd41f)
: pool: Fix race condition in request scheduler
[44c2af1](https://github.com/dcache/dcache/commit/44c2af1d881538c35853e410b16fed45e78e147f)
: system-test: update disposable-CA generated credentials
[c4f72e7](https://github.com/dcache/dcache/commit/c4f72e7ef0630fc2d6bff74f18c2e8fd39dc25d7)
: cells: Avoid bouncing message on no-route errors in System cell
[4e11bbe](https://github.com/dcache/dcache/commit/4e11bbeceb1837d8c3bd218f2b1d81404ef6ea48)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.50
### many
When representing checksums in the admin interface and configuration files, checksums are now presented in an improved format.
### Changelog 2.11.49..2.11.50
<!-- git log 2.11.49..2.11.50 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[919e8dc](https://github.com/dcache/dcache/commit/919e8dc4b9833376d06670658af3c2b3fc2287a5)
: [maven-release-plugin] prepare release 2.11.50
[a18e783](https://github.com/dcache/dcache/commit/a18e783fd51059b5992924c13aecbe94823da071)
: common: fix ChecksumType.toString()
[d18016b](https://github.com/dcache/dcache/commit/d18016bb7695cff1ac4545bcef1ce93cea40c107)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.49
### cells
LoginManager would occasionally generate error messages similar to "Discarding listening on $LOCATION 53684' because its age of 18721640 ms exceeds its time to live of 4500 ms.". This was due to erroneous reuse of old message envelopes in the internal messaging. This change fixes that problem.
This change addresses a potential problem in which messages sent between cells in the same domain could appear older than they are and thus would risk being discarded due to the time-to-live being expired.
### srm
A Tier-1 site reported problems with a major WLCG VO's read requests. Investigating the source of the problems showed that the srm_ifce library, used by the (outdated) GFAL v1 and the (supported) GFAL v2 SRM libraries, drastically limits the permitted lifetime of requests without providing admins any way to configure this.
For sites seeing errors related to desiredTotalRequestTime being exceeded, this change provides the new configuration option srm.request.maximum-client-assumed-bandwidth in srm.properties as a work-around.
Sites not observing such errors do not need to change anything with regard to this value.
### Changelog 2.11.48..2.11.49
<!-- git log 2.11.48..2.11.49 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[f526620](https://github.com/dcache/dcache/commit/f5266206fea57041d7077d5adeb8b3390a5873a3)
: [maven-release-plugin] prepare release 2.11.49
[1bdc3e9](https://github.com/dcache/dcache/commit/1bdc3e91d5fec21b9b3684c7dd4b252c4759ef48)
: srm: add short request lifetime work-around
[5577ba2](https://github.com/dcache/dcache/commit/5577ba2e622763c4f065130b541ce0c0c0e6ba1b)
: chimera: Fix regression in inheriting ACLs on directory creation (HSQLDB)
[0992e32](https://github.com/dcache/dcache/commit/0992e322cbc618a46c530d3e4e66ff7c3ef2dd9d)
: cells: Improve robustness of message time to live
[b46ca1a](https://github.com/dcache/dcache/commit/b46ca1a6bff83d08b705c15cadfedc8f16b805d8)
: cells: Fix erroneous reuse of message envelope in location manager registration
[60bef1d](https://github.com/dcache/dcache/commit/60bef1d4658459d51bd10c530855ef800d0b86b4)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.48
### pnfsmanager
Billing entries for SRM uploads recently lost the storage class part of the entry. This update fixes that issue.
### poolmanager
This modification fixes a potential race condition in pool manager.
### webdav
This modification corrects the error reporting under WebDAV. When attempting to delete a non-existing file, unauthenticated users receive a 401 Unauthorized response, while authenticated users receive a 404 Not Found response.
### Changelog 2.11.47..2.11.48
<!-- git log 2.11.47..2.11.48 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[c7fa199](https://github.com/dcache/dcache/commit/c7fa1991c4a378f7e716a4c72cb4ab91673c6c6b)
: [maven-release-plugin] prepare release 2.11.48
[489bbcb](https://github.com/dcache/dcache/commit/489bbcb1a602a9acf13b01ed2e8c6ea3327f6d42)
: pnfsmanager: Fix regression in SRM billing entries
[db0f3f1](https://github.com/dcache/dcache/commit/db0f3f1e1952d1cd7b691ee3d9db1677132b9069)
: poolmanager: Fix race condition in pool selection unit
[ba9df79](https://github.com/dcache/dcache/commit/ba9df79abbe9575f06a5fa116a4fde206fea8b64)
: webdav: fix 404 error if attempting to delete a nonexistent file
[ad5442d](https://github.com/dcache/dcache/commit/ad5442d78548d89c0ac89b568e11ef5c77bc0a2d)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.47
### pnfsmanager
With this release, PnfsManager adds safety checks rejecting invalid upload paths that SRM might erroneously supply. This release hardens an installation against possible bugs triggering data loss.
This release adds a check that detects failed or incomplete SRM uploads and prevents the file from being committed to its final path. Common symptoms of this bug were zero sized files that experiment catalogues registered as successfully uploaded.
### srm
This release adds a check to detect broken uploads using SRM during the final stage of file transmission. While it causes transfers to take a little more time, resilience against upload failures is increased.
### Changelog 2.11.46..2.11.47
<!-- git log 2.11.46..2.11.47 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[56d90b3](https://github.com/dcache/dcache/commit/56d90b3ec3b3d9f2a8c371863bb0dba04a65d749)
: [maven-release-plugin] prepare release 2.11.47
[271fa08](https://github.com/dcache/dcache/commit/271fa086aafb62e89b48a12fb7e2c4722f737249)
: srm: Check for broken files during srmPutDone
[33713a7](https://github.com/dcache/dcache/commit/33713a7d6975233bd7660e784c56d5bbb364b7a3)
: pnfsmanager: Check file size and upload completion when committing temporary upload paths
[11931a0](https://github.com/dcache/dcache/commit/11931a001fddc49f37c1c95a040cb3d6b2ab0d88)
: pnfsmanager: Protect against erroneous upload paths
[d9e2e57](https://github.com/dcache/dcache/commit/d9e2e5733ef82e177b51721aa4bc6561e2aafdc2)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.46
### Changes affecting multiple services
Several cases of slow performance were reported while deleting
directory in Chimera. This is now fixed.
### pool
When command execution to migrate files between pools (e.g. `migration
concurrency` or `migration copy`) is interrupted due to the failure to
find migration job the returned error message is considered as a bug.
This is now fixed so that a new message is returned indicating that
the job being requested does not exist.
### srm
When file upload is cancelled the value of temporary upload path
tracked by SRM could be a value different from a regular path, either
because it was changed outside of dCache, or it contains entries from
a very old version of dCache. This could result in data loss while
canceling upload. The current release fixed a potential data loss
scenario.
### statistics
The statistics service creates static HTML pages that describe dCache
usage over time as simple files that the webadmin service can
serve. This includes information about pools and store-units. The
problem is that the statistics webpages do not show information about
any pool or store-unit that contains a `/` in the name. This is now
fixed. A side-effect is that the history of any pool or store-unit
containing a `^` in the name is lost.
### Changelog 2.11.45..2.11.46
<!-- git log 2.11.45..2.11.46 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[3a6fb84](https://github.com/dcache/dcache/commit/3a6fb84798566e084ce6d6d9f629fe44b1019ecf)
: [maven-release-plugin] prepare release 2.11.46
[311c77b](https://github.com/dcache/dcache/commit/311c77b758c8f5bbe555f40955f36e4201bcd948)
: chimera: Alter statistics target for t_tags(itagid)
[e180fa7](https://github.com/dcache/dcache/commit/e180fa7de2e618299e1f5914b2160326d6147898)
: srm: Add safe-guard against invalid file ID in put requests
[fecb34d](https://github.com/dcache/dcache/commit/fecb34d804ebb0e460b34d0e1f9ead15ffe25f71)
: pool: Don't consider failure to find migration job a bug
[b1cde64](https://github.com/dcache/dcache/commit/b1cde64fc24d1dfd169a9f85add0a8aa7039e7bf)
: statistics: encode '/' in filenames
[ecdf23d](https://github.com/dcache/dcache/commit/ecdf23d54a4a246c75135203fb08098e675b4837)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.45
### nfs
Pinning files is now a non-blocking operation. For files stored on tape, this should result in a more responsive system behaviour, avoiding NFS blocking in situations with many concurrent pin requests.
### Changelog 2.11.44..2.11.45
<!-- git log 2.11.44..2.11.45 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[9474044](https://github.com/dcache/dcache/commit/94740448a404c454436cf9341d06e3ca6c82a3a0)
: [maven-release-plugin] prepare release 2.11.45
[8074557](https://github.com/dcache/dcache/commit/8074557686b89407429c451d336411457600ab79)
: adapt 3eab402754b814f681a14d296d808031b05f2737 to 2.11 branch code
[9115ff4](https://github.com/dcache/dcache/commit/9115ff4beedffece4dfcf11b7a0dbea8a7e30a72)
: nfs: use noitify instead of blocking sendAndWait when sending pin/unpin messages via touch ".(get)(<file_name>)(pin)" command
[1970035](https://github.com/dcache/dcache/commit/1970035a2bc31e1f9a63dc5a613ff9bf3482dc27)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.44
### Changes affecting multiple services
Sometimes when a cell start up was interrupted an error message was logged as a bug. This is now fixed.
### info-provider
The GLUE infomation provider supplies information about the dCache instance, which is important for the clients in WLCG area.
Because in dCache different doors can have different roots, clients may need to adjust their path when accessing dCache through different doors.
The info-provider is updated so that a new **path root** property is provided. This allows clients to modify paths, as necessary. Note that
the SRM door already supports this translation when redirecting clients for transfers.
### Changelog 2.11.43..2.11.44
<!-- git log 2.11.43..2.11.44 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[9476747](https://github.com/dcache/dcache/commit/9476747740312c79cbbfa2108c08c11eaad27483)
: [maven-release-plugin] prepare release 2.11.44
[6746bd6](https://github.com/dcache/dcache/commit/6746bd62b7a27c3ed25b9315f2497bc81b73d067)
: info-provider: publish door root path
[20e2d4d](https://github.com/dcache/dcache/commit/20e2d4d86cc3def116d6d4f626fd5c83762c07e2)
: cells: Suppress illegal state exception during initialization
[a5c6109](https://github.com/dcache/dcache/commit/a5c6109dba3a0df4aa03b773b4c736b395169948)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.43
### pool
Revert Netty version back to v3.9.9. A previous release upgraded the
version of Netty, but this appears to have introduced problems for
some HTTP transfers where the pools run out of memory.
### spacemanager
Spacemanager backs off when it encounters a problem writing to the
database. Previously, if the problem was due to deadlocks then the
two tasks involved are delayed by the same amount, which means it is
possible that subsequent attempt will also deadlock. This release
randomises the delay to reduce the likelihood of this problem
occuring.
### Changelog 2.11.42..2.11.43
<!-- git log 2.11.42..2.11.43 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[ccf844b](https://github.com/dcache/dcache/commit/ccf844b4267fac4e6215d3cf61f15f0a05acb89c)
: [maven-release-plugin] prepare release 2.11.43
[3e6242d](https://github.com/dcache/dcache/commit/3e6242d321b36c6463256d21d1d6ee3ec3eda2a3)
: pool: revert Netty back to v3.9.9
[11b4e4b](https://github.com/dcache/dcache/commit/11b4e4b959a9b069653f3cbf303b2377331a5d98)
: spacemanager: Randomize backoff in case of transient errors
[74e6bf0](https://github.com/dcache/dcache/commit/74e6bf00059aaf979f6694bf13826a9d8b81cc36)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.42
### xrootd
Fix dCache handling of open requests where uploads were considered
downloads.
### Changelog 2.11.41..2.11.42
<!-- git log 2.11.41..2.11.42 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[5529bae](https://github.com/dcache/dcache/commit/5529bae20160ebe94213a9a161b9278d1fdb6f39)
: [maven-release-plugin] prepare release 2.11.42
[abc99ab](https://github.com/dcache/dcache/commit/abc99ab7f1bdc230f1ef5ec93096338a7ee9756c)
: xrootd: Fix classification of uploads
[51f0784](https://github.com/dcache/dcache/commit/51f078488c691bc9d53f3fd9cdcdde36eacf586a)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.41
### Changes affecting multiple services
Don't log `Error while reading from tunnel:
java.nio.channels.AsynchronousCloseException` when a domain shuts
down.
### Changelog 2.11.40..2.11.41
<!-- git log 2.11.40..2.11.41 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[17822a3](https://github.com/dcache/dcache/commit/17822a344bf71fd2db031da21336210433b63129)
: [maven-release-plugin] prepare release 2.11.41
[f38624f](https://github.com/dcache/dcache/commit/f38624fcbfc3017aae728a0832db6a84374ad540)
: cells: Don't log AsynchronousCloseException when tunnel closes
[09ad53e](https://github.com/dcache/dcache/commit/09ad53e18b567ecd074359659f97f45c1aeb5909)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.40
### Changes affecting multiple services
Update the Spring, Milton, AspectJ, Jetty and DataNucleus-core
libraries to latest version. All dCache services are affected.
### pool
If a 3rd-party transfer fails then the pool may log and report
incomplete information on why this happened. This release fixes this
problem.
### Changelog 2.11.39..2.11.40
<!-- git log 2.11.39..2.11.40 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[94877da](https://github.com/dcache/dcache/commit/94877da20e452547e03005b6868e3ea9c0512a86)
: [maven-release-plugin] prepare release 2.11.40
[9a50720](https://github.com/dcache/dcache/commit/9a507205ad3f432aeaf8a533734d18884fc5ad77)
: 2.11: upgrade third party dependencies
[e93efef](https://github.com/dcache/dcache/commit/e93efef3994e69d416a83d825c7dbde61221290c)
: http-3rd-party: ensure IOException logged with toString
[6267fa8](https://github.com/dcache/dcache/commit/6267fa8509de8d7a2644c9d9db4307b69b042bbb)
: info: fix test to be less critical on timing
[d60977f](https://github.com/dcache/dcache/commit/d60977fe77e5e3a03b445f8197a684e42d5de925)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.39
### nfs
Report EOF when client undertakes mixed read/write workload and
attempts to read beyond currently written data.
### poolmanager
Previous releases of dCache contained a bug where replicas generated
by pool-to-pool copies failed to include the access latency and
retention policy. While not directly affecting dCache operations, the
result is that this information is no longer reliable.
### spacemanager
Fix listing by PNFS-ID. Glob support is removed as it was
non-functional.
### Changelog 2.11.38..2.11.39
<!-- git log 2.11.38..2.11.39 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[0f7347a](https://github.com/dcache/dcache/commit/0f7347a19d67e003e3b5e0f1b50053e771ab2807)
: [maven-release-plugin] prepare release 2.11.39
[e4aa4a2](https://github.com/dcache/dcache/commit/e4aa4a2c97ce3f10b382d1dc25215997bac3a62d)
: poolmanager: Fix missing access latency and retention policy on pool to pool copy
[8ddd796](https://github.com/dcache/dcache/commit/8ddd796b4208d57909381dca7a3ba79ffe02ff04)
: spacemanager: Fix listing by pnfs id
[4611bd1](https://github.com/dcache/dcache/commit/4611bd10c925074666744bdf5c1be7d42684ca2a)
: nfs-proxy: keep track of written bytes
[16445a0](https://github.com/dcache/dcache/commit/16445a089237d99d9437b5b0eb382e9975b69fb8)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.38
### Changes affecting multiple services
This release fixes a caching issue where changes to inode metadata
(e.g., ownership or permissions) for `/` (the root directory of
Chimera) are not visible until the service is restarted. This affects
NFS doors and pnfsmanager service.
### Changelog 2.11.37..2.11.38
<!-- git log 2.11.37..2.11.38 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[310eb5d](https://github.com/dcache/dcache/commit/310eb5d51d4f8f9527389cc18157b56824cb06dc)
: [maven-release-plugin] prepare release 2.11.38
[447822a](https://github.com/dcache/dcache/commit/447822a89ac3731d0413603a7eaa59f488220213)
: chimera: Prevent filling of stat cache of root inode
[c30f84c](https://github.com/dcache/dcache/commit/c30f84c07c0ff592a254adc4a507700761947b9c)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.37
### Changes affecting multiple services
The chimera library, used by PnfsManager and NFS, contains possible
race conditions that can lead to a NullPointerException. These are
updated so that Chimera gives the correct error message under these
circumstances.
The chimera library, used by the pnfsmanager and nfs services,
contains a bug where two near-simultaneous attempts to delete a
hitherto empty directory and write a file into the same directory will
both succeed but leave an orphaned file: it exists in the `t_dirs`
table but the parent does not exist in `t_inodes` table. This seems
to be triggered when an ftp door fails with `no write pool
configured`. This release fixes this problem.
### pnfsmanager
Fix the error message (logged by the domain hosting pnfsmanager) if an
attempt to finalise an SRM upload fails within pnfsmanager, or if an
attempt to cancel an SRM upload fails within pnfsmanager.
### webdav
Update to the latest version of milton.
### xrootd
Update the `alice-token` plugin to allow the host name check to
succeed on dual-stack (IPv4 and IPv6) machines.
### Changelog 2.11.36..2.11.37
<!-- git log 2.11.36..2.11.37 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[68608ee](https://github.com/dcache/dcache/commit/68608ee8e9b593c66451ad092191c6f14b060ceb)
: [maven-release-plugin] prepare release 2.11.37
[77339bc](https://github.com/dcache/dcache/commit/77339bcf72bb57db75eac937215029b773d37bbc)
: xrootd: Update alice token plugin to fix IPv6 compatibility
[435f26c](https://github.com/dcache/dcache/commit/435f26cadd98955ff7cc51927ad036bbbfbf9c0b)
: chimera: Detect races in directory deletion
[d2fdea0](https://github.com/dcache/dcache/commit/d2fdea02ebe1dfbb76c1677cce1b65dc590ccc14)
: chimera: Detect races during move
[cf7c8c5](https://github.com/dcache/dcache/commit/cf7c8c59dfdbfaae1c52e60e36195a308fb20b02)
: webdav: update to latest milton
[ef188e5](https://github.com/dcache/dcache/commit/ef188e52ab3ae266f7ea59a482c359976926dd08)
: PnfsManager: remove copy-n-paste error in error message
[9c4315d](https://github.com/dcache/dcache/commit/9c4315de5148a31024a9bb0549791b82f96c49a7)
: system-test: Fix grid-security settings
[7b154e7](https://github.com/dcache/dcache/commit/7b154e7b8d931906227c5259ad68f5e9513efdfe)
: rpm: enforce SL5 compatibility when building RPM packages
[5287e2b](https://github.com/dcache/dcache/commit/5287e2b21ffb8c279845c716ab81a55410c25120)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.36
### Changes affecting multiple services
Eliminate race condition that can lead to a NullPointerException if a
cell does not shut down cleanly.
The `dcache` script no longer checks whether the `hostkey.pem` file is in
PKCS#8 format when `dcache stop` is invoked. Previously this could lead
to orphaned dCache domains; for example, when upgrading dCache RPM.
### admin
Fix potential IndexOutOfBoundsException should the response from the
`acm` cell be malformed.
### pnfsmanager
Contribution from Kurchatov: update the ChimeraCleaner to work-around
the Java compiler's inability to produce compatible Java 7 binaries
when compiling with JDK 8. **Note**: sites using official dCache.org
packages do NOT need to upgrade as a result of this change.
### pool
Fix an intended pool-to-pool transfer optimisation: the receiving pool
failed to reuse a delayed mover, should the pool-to-pool request
timeout and be retried.
Fix pools so that they do not log NullPointerException if a pool
receives a request to restore a file from an HSM to which it has no
access.
### Scripts
Fix how the `writedata` command in the `chimera` shell accepted data:
the command-line argument was ignored if supplied and data was taken
from stdin, if no argument was supplied then the command would fail
with NullPointerException. ***Note***: this command does NOT write
data into dCache, but into Chimera.
### srm
Fix the context information included when logging failures to write
job information to the database.
### Changelog 2.11.35..2.11.36
<!-- git log 2.11.35..2.11.36 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[f00f303](https://github.com/dcache/dcache/commit/f00f303b9c4642cfb47e2ccfeae8403952eb74a2)
: [maven-release-plugin] prepare release 2.11.36
[9e1d0e2](https://github.com/dcache/dcache/commit/9e1d0e26cc645c6d2b15a54de0487708234c2821)
: srm-client, dcache: fixed passing incompatible arguments to functions
[57e8e75](https://github.com/dcache/dcache/commit/57e8e757c67143659d10fca15055ca8dc9254ac7)
: dcache: removed unecessary use of non-short-circuit logic
[f311296](https://github.com/dcache/dcache/commit/f311296f50f9d05861737e7e136206771e5cc07f)
: pool: Fix NPE when restoring file
[8cf34a9](https://github.com/dcache/dcache/commit/8cf34a9a9454cd68187370c0c7b85932f5f176e7)
: ChimeraCleaner: reallow to be compiled/run on different Java versions
[ff3c1c9](https://github.com/dcache/dcache/commit/ff3c1c944e62a0cde9ca528002730dff48cb65b2)
: scripts: do not check for PKCS#8 formatted hostkey.pem on shutdown
[d56bf7a](https://github.com/dcache/dcache/commit/d56bf7ad1704fd2b8fc2fd05b14d719f10db671a)
: chimera: Null value passed to non-null parameter in org.dcache.chimera.cli.Shell$WriteCommand.call()
[cbe3e69](https://github.com/dcache/dcache/commit/cbe3e697eccd3d24633af97620eda6034d246916)
: srm: Use correct logging context when saving jobs
[23c82bb](https://github.com/dcache/dcache/commit/23c82bb72e2150773c8e2d18a6482908404218ef)
: cells: Fix NPE during shutdown
[cfd0e9a](https://github.com/dcache/dcache/commit/cfd0e9adc200926bad2abebc01346f6736a19a18)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.35
### Changes affecting multiple services
When starting up, all doors (dcap, ftp, nfs, srm, webdav, xrootd) and
pools advertise their presence to other dCache components before they
are able to handle incoming requests. This can lead to subsequent
queries timing out as the service finishes starting up. With this
version of dCache, doors and pools only advertise their presence once
they can handle incoming requests.
### pool
This release updates how dCache configures the Berkeley DB when used
for storing pool metadata. In addition, dCache will now no longer
disable the pool when suffering a Berkeley DB-related problem if the
Berkeley DB environment is still valid. Combined, these two changed
should greatly reduce the occurances of pools disabling themselves
when under heavy IO load.
### Changelog 2.11.34..2.11.35
<!-- git log 2.11.34..2.11.35 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[a10d104](https://github.com/dcache/dcache/commit/a10d1041b9c7ea8db5ffa8a6a6a710b2972c3684)
: [maven-release-plugin] prepare release 2.11.35
[3b3ba40](https://github.com/dcache/dcache/commit/3b3ba40ca8b1350ebde258608de6a00e7da69e20)
: pool: Refine Berkeley DB failure handling
[1ed3b48](https://github.com/dcache/dcache/commit/1ed3b485329cb10ed169e16af36c2707054614ee)
: Don't announce cells to other services until they have started
[aa64225](https://github.com/dcache/dcache/commit/aa6422507d8fc8ba3409220cd3ad3feda81ceb90)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.34
### Changes affecting multiple services
The `ftp`, `webdav` and `xrootd` doors will delete the target file if
an upload was unsuccessful. The copy manager (part of the
`transfermanagers` service) has a similar behaviour if an internal
copy is unsuccessful. If this delete was unsuccessful (e.g., the
client deleted the file itself) previous dCache versions would log
this at `ERROR` level. With this dCache version, such occurrences are
logged at `DEBUG` level.
### nfs
Fix race condition that can occur when a pool is first accepting pNFS
transfers if multiple requests are processed almost simultaneously.
### webdav
The webdav door has separate configuration allowing the admin to
configure the door-local path that contains site-local files and the
URI prefix to access those files. Earlier versions of dCache
mistakenly used the former for the latter, which this release fixes.
### Changelog 2.11.33..2.11.34
<!-- git log 2.11.33..2.11.34 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[96732e6](https://github.com/dcache/dcache/commit/96732e61a980d3339825b6172eebf81d56c7948b)
: [maven-release-plugin] prepare release 2.11.34
[7472ae6](https://github.com/dcache/dcache/commit/7472ae6de2ee7a202ec97cd943653cd8549113b0)
: Revert "webdav: Add robots.txt"
[ded846d](https://github.com/dcache/dcache/commit/ded846db4f54791ed9adcdf465dbda28085d1b36)
: webdav: Respect webdav.static-content.uri property
[f083d2f](https://github.com/dcache/dcache/commit/f083d2fa464f1e7d69338286a43ce19d3861b2d9)
: doors: Do not log failure to delete absent files on upload failures:
[8349731](https://github.com/dcache/dcache/commit/8349731615a9c0c0c46efee6fce3b1777d4bdfc8)
: nfs4: fix race in request processing
[c61fb66](https://github.com/dcache/dcache/commit/c61fb66086198fffc4be1699db6094436c48b372)
: webdav: Add robots.txt
[46c3745](https://github.com/dcache/dcache/commit/46c37455f5fbdd903a748e0e6c9a0e6dae976e4d)
: [maven-release-plugin] prepare for next development iteration
## Release 2.11.33
### Changes affecting multiple services
In earlier versions of dCache, the code-base would always establish a
node's FQDN through a DNS query on start-up. For some services and
for dCache scripts (for example, the `chimera` script), this
information is not used. With this release, dCache only makes the DNS
query when it is necessary, so domains hosting services that do not
need this information and scripts will start faster.
### dcap
Doors describe their root path to SRM so it can calculate appropriate
TURLs. Previous versions of dCache had dcap doors register incorrect
paths, which this release fixes.
dCache configuration allows an admin to control if certain ciphers are
allowed. In particular, this allows sites to remove support for
problematic ciphers or hashing algorithms. This release fixes a
problem where the GSI-dcap door failed to honour such settings.
### pool
The replica-manager periodically requests a list of file replicas that
a pool is hosting. In previous versions of dCache, if the pool finds
a broken file then an error is returned to replica-manager. The
replica-manager then considered the entire pool as being offline.
With this version od dCache, such errors are logged on the pool. The
replica-manager will not consider the pool as hosting that file's
data, but will otherwise consider the pool online.
The different HSM operations (flush, stage and remove) have internal
timeouts after which the pool considers the request as failed. In
previous versions of dCache, the default pool setup includes a four
hour timeout for flush and stage but neglected to set a default for
delete. This omission caused delete operations to time-out very
quickly. With this release, delete operations also have a default of
four hours.
Fix the Ruby implementation of the hsmcp script (`hsmcp.rb`) so it can
parse new command-line arguments that include concurrency options.
The concurrency for active HSM operations is configurable and may be
adjusted dynamically. In earlier versions of dCache, decreasing the
concurrency only became effective when that operation started to idle.
This has been fixed so the limits start to have an effect as
operations complete.
Each movers can have one of three priority (LOW, MEDIUM, HIGH) and a
selection discipline (FIFO or LIFO). The documented behaviour was for
queue with names that start with `-` have LIFO discipline and those
that start with any other character have FIFO discipline. Due to a
bug, the order was wrong, with the priorities inverted and the two
disciplines swapped, so LOW priority movers were started before MEDIUM
level and MEDIUM were started before HIGH. This release fixes this so
HIGH priority movers are selected preferentially over MEDIUM and,
MEDIUM priority movers are chosen over LOW priority; however, it was
decided to keep the disciplines as in previous versions and updated
the documentation accordingly. There are several reasons for this:
first, there is no difference between LIFO and FIFO when movers are
not queued; second, neither discipline will help if the pool is
persistently overloaded; third, LIFO discipline (although unfair) is
documented as providing a better overall throughput during a
time-limited overload; fourth, by default dCache has been running with
LIFO discipline since v1.9.11 (released 2011-01-13) without any
apparent problems.
HTTP third-party transfers report back if there was a problem
verifying that the transfer was successful. One possible problem is
that the remote server failed to supply checksum information.
Reporting of such situations is now fixed.
### webdav
In previous versions of dCache, should a user cancel a transfer
shortly after a mover is created then there was a risk that the mover
is abandoned. This is fixed with this release.
### xrootd
In earlier versions of dCache, if the xrootd door times out for a
write request while waiting for the mover to send the redirection
information then the mover is abandoned. This is fixed with this
release.
### Changelog 2.11.32..2.11.33
<!-- git log 2.11.32..2.11.33 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[3073f9f](https://github.com/dcache/dcache/commit/3073f9f3f9214c0f41fe2ffc7675d46a9e6ad618)
: [maven-release-plugin] prepare release 2.11.33
[194a072](https://github.com/dcache/dcache/commit/194a07223b505d1638c9a18e63fb474a23203091)
: hsmcp: update to match new HSM interface.
[cbd0d90](https://github.com/dcache/dcache/commit/cbd0d90ebe7561601d80de6828dc1fa685c8ab67)
: (2.11) old replica manager: prevent pool being listed as offline when there are files with corrupt metadata
[faf8dd4](https://github.com/dcache/dcache/commit/faf8dd436d2d73aa510161b89b4b9e7ab5b5990d)
: webdav: Kill abandoned movers
[bd8ed51](https://github.com/dcache/dcache/commit/bd8ed5159758290dcccef896931da7ed8ce818ce)
: xrootd: Kill mover on aborted write
[17aac10](https://github.com/dcache/dcache/commit/17aac104b04c4a1649927cb1b15faa22c9a4ff05)
: pool: Fix transfer prioritization
[719fe09](https://github.com/dcache/dcache/commit/719fe093d61e38d53a0aa7af7385006409f66ac1)
: pool: Add nearline storage default timeouts
[4c1fc64](https://github.com/dcache/dcache/commit/4c1fc64aade8361d24fe067ed6dc55acaaec9dc1)
: pool: Let script nearline storage provider scale down when lowering limits
[2af9726](https://github.com/dcache/dcache/commit/2af97266c9e8765bcd60bc49887e8a3d253ef217)
: dcap: Fix broken argument parsing
[903ecd2](https://github.com/dcache/dcache/commit/903ecd2dbff807e51439c972129e056b63a2e02a)
: Fix build and startup regression
[1a6ab63](https://github.com/dcache/dcache/commit/1a6ab63ff2805b900473825d77f98585be096b87)
: dcap: Fix socket factory argument parsing
[519ad35](https://github.com/dcache/dcache/commit/519ad35525d69f92f6d01f7f990b9e593d5af64b)
: pool: Fix error reporting in remote HTTP mover
[d243819](https://github.com/dcache/dcache/commit/d2438194aa28f881931104a0da14f249503e7615)
: prepare for next development iteration
## Release 2.11.32
### srm
Fix security vulnerability in srm
[EGI-SVG-2015-9495](https://wiki.egi.eu/wiki/SVG:Advisory-SVG-2015-9495)
(restricted).
## Release 2.11.31
### Changes affecting multiple services
In many cases, poolmanager would timeout after ten seconds when asked
which pool to use for a transfer. This behaviour was not intended.
The consequence of this bug is protocol specific: for some protocols,
the door retries internally while other doors propagate this error to
the client. Another consequence was the increased risk of the domain
hosting poolmanager running out of memory, particularly when staging
files. This release fixes the underlying problem. It is recommended
that all doors be upgraded.
Fix a performance regression when deleting directories; the fix
affects the pnfsmanager and nfs services.
### spacemanager
Fix bug that can result in leaked entries in space-manager file
management from failed uploads. The problem is most likely triggered
when a client cancels an FTP upload at the same time as the
correponding SRM upload request expires. The problem may also be
triggered by communication failure with PnfsManager and the user
deleting the failed upload before the pool retries.
### srm
Fix support for credential delegation if the credential's certificate
is sent over multiple SSL frames. This most likely happens when the
certificate exceeds the maximum frame size.
### Changelog 2.11.30..2.11.31
<!-- git log 2.11.30..2.11.31 -no-merges -format='[%h](https://github.com/dcache/dcache/commit/%H)%n: %s%n' -->
[8db6850](https://github.com/dcache/dcache/commit/8db6850e80cb080a872ebdaf38d9c0da596663bd)
: [maven-release-plugin] prepare release 2.11.31
[774e283](https://github.com/dcache/dcache/commit/774e28342089a75ae8170a4b010627eef7513d3e)
: spacemanager: Fix race condition leading to leaked reservation entries
[23cd4ac](https://github.com/dcache/dcache/commit/23cd4acd8f40e56bc8e240c00f390a7688c4e17d)
: chimera: Resolve performance regression in directory deletion
[2667ae5](https://github.com/dcache/dcache/commit/2667ae5e458b5ba4af25ba382666ff3f4fd7d7ee)
: doors: Fix pool selection timeout handling
[cc588cf](https://github.com/dcache/dcache/commit/cc588cfbb14b288e05708123cf619de23a8300ff)
: Fix timeout math to avoid overflow
[1ea1a31](https://github.com/dcache/dcache/commit/1ea1a3160c9c1b609fd512fbdf48131be3c93131)
: srm: Fix credential delegation
[a1b6dd1](https://github.com/dcache/dcache/commit/a1b6dd18fadf0aa8e591e016d22fe0434598e192)
: Preparing for next release cycle
## Release 2.11.30
### ftp
Fix security vulnerability in `gsi` and `kerberos` authenticated ftp.
## Release 2.11.29
### Changes affecting multiple services
The `System` cell of each domain contains a `version` command that
allows discovery of which dCache version is running. This release
fixes this command. **Note:** there is no problem with the `dcache`
script's `version` command.
### nfs
The NFS protocol provides access to additional infomation through dot
commands. This release fixes the `nameof` and `pathof` commands for
non-ASCII filenames.