v8.0.86

[rel-v8r0]

*WorkloadManagement

FIX: (#8853) set the job Status and LastUpdateTime atomically so that the StalledJobAgent does not reschedule jobs that have just been matched
FIX: (#8853) StalledJobAgent re-checks stuck jobs before rescheduling them
FIX: (#8839) the payload no longer inherits signals blocked in the JobWrapper (e.g. by gfal2), so it can be stopped with SIGTERM and abort itself with SIGQUIT
NEW: (#8830) allow fractional MatchingDelay for sub-second matcher throttling
NEW: (#8830) MatchingDelay is a token bucket, with an optional MatchingDelay//Burst// burst size
FIX: (#8830) MatchingDelay tokens are reserved before matching, so concurrent requests can no longer exceed the configured rate
FIX: (#8830) running limits count the jobs matched since the cached running counts were taken, so sites no longer overshoot them
FIX: (#8830) CEs and Burst subsections are no longer reported as unknown job attributes

*DataManagementSystem

FIX: (#8849) Add permission check to FC rebuildDirectoryUsage
FIX: (#8837) S3Gateway presigned URLs work with S3 implementations which validate them, and store the checksum on upload

*FrameworkSystem

FIX: (#8846) Increase token key size
FIX: (#8830) MessageQueueHandler sends log records from a background thread with a bounded queue, so logging never blocks when the broker is slow or unreachable

*RequestManagementSystem

FIX: (#8834) The RequestExecutingAgent no longer crashes repeatedly on requests without any operation to execute, it sets an error and delays them by a day
CHANGE: (#8834) Request and Operation constructors no longer modify the dictionary they are given

*Resources

FIX: (#8830) StompMQConnector.put fails fast (one short reconnection attempt, with backoff) instead of blocking for minutes when the broker is unreachable

*Core

FIX: (#8821) annotate DIRAC.exit as NoReturn so pylint knows DIRACExit ends a branch
FIX: (#8821) backport the pylint no-member disables on ThreadConfig calls
FIX: (#8783) require m2crypto >=0.50, which restores the timed ssl_read() retries broken in 0.46.0