XRD_TIMEOUTRESOLUTION=600   # increased from 15s

replaced eosh script with ls -y except after retrieval as archived and
retrieved are the same status regarding eos...
Looks like sometime ls -y determined archived files is not a growing
function...

client_ar.sh can now write to /eos/ctaeos/preprod with -d option, just complains: Could not remove disk replica for /eos/ctaeos/preprod/ as drop is already done in the wfe script. Should test for disk replica before trying to drop with ls -y on directory.

In the MemQueue, the promise for the next batch was set after the queue was committed, but
before the lock was released (by the last user of the queue, through a shared pointer). This
would lead to an uselessly early start of the next queue batch for writing an avoidable contention
on the object store lock. This would no lead to a pile up though as only 2 thread would be contended
(previous and early starting next).

... in preparation for replacement of RetrieveMount::getNextJob().

The retrieve request now gets properly queued in case of retrieve error.
The errors are counted and the request gets deleted eventually.
A new field was added to the retrive request in object store. This commit
will fail on upgrade if there are retrieve requests still queued at update time.
Cleaned up some unused structures in cta.proto
Minor modifications to ArchiveJobs.

Converted all bytes to Mbytes. Removed extra space in the output.
Reordered fields.

This is a stop gap solution while we wait for efficient archive/retrieve reporting.

This affects only unit tests as taped already relied on getNextJobBatch().

As rados re-creates an object when trying to lock it, we tested for presence before locking.
This is racy as object could be deleted in the mean time.
Instead, we now lock blindly and delete the object if we find it having a zero-size.
As we own the lock, this is safe.

This problem led to issues in garbage colector, where agent gets polled while it could disappear.

This fixes frontend failing to start on file permission error.

Set default to 8k as seen in this documentation:
http://www.rsyslog.com/doc/v8-stable/configuration/global/index.html.

Added the vid in the name of the retrieve queue object.

Also fixed flaws in the cache update logic.

Some further adaptation was needed on the templates.

It is now known as ostoredb::MemQueue<ArchiveRequest, ArchiveQueue>. This is in preparation of the reuse of the code
for ostoredb::MemQueueu<RetrieveRequest, RetrieveQueue>.

their namespace.
According to
https://kubernetes.io/docs/concepts/configuration/secret/#creating-a-secret-using-kubectl-create-secret:
```
Secret API objects reside in a namespace. They can only be referenced by
pods in that same namespace.
```

This allows to solve the recurrent docker login issue by passing the
credentials to kubernetes as a secret.
Indeed docker login credentials are valid for 3 months then it is over.
We just need to pass the `ctareg` service account credentials in the
`ctaregsecrets` and we are done.
In addition `imagePullSecrets` works at the full cluster level as each
kubelet needs the registry credentials to pull its own image.
If `ctaregsecret` secret does not exists, kubernetes is perfectly fine
with that and uses the default authentication. This means that there is
no need to define this secret (which is useless in the buildtree
environment).

Changed the default behavior of DummyCatalogue so unit tests keep passing.
Adapted SchedulerDatabase API.

Added tapepool information from the catalog in
Scheduler::getQueuesAndMountSummaries.

Created a unit test for RetrieveRequest garbage collection.
Created a RetrieveQueue::addJobIfNecessary function.
Fixed various bugs in RetrieveRequest::garbageCollect.
Added basic functionnality to DummyCatalogue for GC unit tests.
Cleaned up interace of RetrieveRequest for functions that are never used.
Implemented missing function in RootEntry.
Homogenized capitalisation of object names.
Added support for RetrieveRequest in cta-objectstore-collect-orphaned-object.