Release Notes

4.5.6

Fixes

• Disabled debug SevError trace event when applyMutations is cancelled

• Fixed problem skipping publishable files

• Publish debug symbols for files for all platforms

4.5.5

Fixes

• DR and backup restoration could stall when encountering transactions larger than 5 MB. <rdar://problem/28744048>

• The _valid field in layer status was missing when the client couldn’t communicate with the cluster. <rdar://problem/27643333>

• Backup uploads to blobstore were not verifying their checksums. <rdar://problem/28417369>

4.5.4

Fixes

• Creating transactions with the multi-version client was not thread safe. <rdar://problem/28546688>

• The status latency probe is now performed separately from other status gathering code. <rdar://problem/28119480>

• Watches could fire early needlessly and in rare cases may not fire when they should. <rdar://problem/27957628>

• Change the type of the query_queue_max attribute in status from an object to an integer. <rdar://problem/26709846>

• fdbserver arguments were not properly preserved in log output. <rdar://problem/28407513>

• Increase priority of getting read versions over commits on the master proxy.

• Java: Inserting a non-Long number into a Tuple and reading it back out threw a ClassCastException. <rdar://problem/28260594>

4.5.3

Fdbcli

• Fix: key and value output did not escape the backslash (’\’) character. <rdar://problem/27832343>

• Spaces in key and value output are no longer escaped. <rdar://problem/27832343>

Java-completable

• Fix: Range queries with a limit could sometimes return fewer items than requested. <rdar://problem/27879470>

Status

• Fix: backup and DR range_bytes_written and mutation_log_bytes_written are reset when backup or DR is restarted. <rdar://problem/27640774>

• Added _valid and _error fields to layer status. <rdar://problem/27643333>

4.5.2

Fixes

• Fixed thread safety issues with backup and DR.

• Fixed a load balancing problem when a machine was already failed when a client starts.

• Golang: adding an explicit conflict key included the key immediately following in the conflict range.

4.5.1

Features

• When a process is added to a cluster, it will be given data at a much faster rate. <rdar://problem/24075759>

• Improved the speed at which the cluster reacts to a failed process.

Fixes

• Calculating status in large databases could cause slow tasks. <rdar://problem/25805251>

• Fdbrestore printed an error when passed the --help flag. <rdar://problem/26126793>

• A multi-version API external client that was a duplicate could cause a crash at client shutdown. <rdar://problem/25838039>

• A multi-version API external client that failed to load would cause a crash at client shutdown. <rdar://problem/26611919>

• Status could report an incorrect database size in rare scenarios. <rdar://problem/25295683>

• Data distribution would stop working (both exclude and new recruitment) if a call to commit on the storage server could hang indefinitely. <rdar://problem/26276166>

• fdbcli would quit on some commands that were not errors or continue after some real errors when run with --exec. <rdar://problem/25755317>

• Trace files generated by clients using the multi-version API could have name collisions. <rdar://problem/25884486>

Fdbcli

• Client issues are now aggregated by name and have an addresses list. Status details prints a truncated view of these. <rdar://problem/23469072>

• Status json lists incompatible clients. <rdar://problem/24415680>

• Status json includes processes that couldn’t be reached in the processes list. <rdar://problem/26703551>

• Exclude does not run if it will drop free space below 10%. This check can be bypassed by adding the word FORCE as a parameter. <rdar://problem/22922266>

• Added write mode, which must be turned on to set or clear keys. <rdar://problem/25779641>

• Added the kill command for killing processes.

Fdbmonitor

• The restart logic for dead child processes now uses a backoff. <rdar://problem/26100711>

• Added option to remove WD40 environment variables. <rdar://problem/26100669>

• fdbmonitor will create the lockfile directory if it doesn’t exist. <rdar://problem/26502883>

• Added support for monitoring symbolic link changes in the configuration file path. <rdar://problem/26100843>

• Added an option to disable killing of child processes when the configuration changes. <rdar://problem/26100939>

• Added support for larger process IDs. <rdar://problem/26350469>

Backup

• Blobstore URLs can now contain multiple IP addresses, separated by commas, over which to load balance requests. <rdar://problem/23095572>

Bindings

• API version updated to 450. There are no behavior changes in this API version. See the API version upgrade guide for upgrade details.

• Add error predicate testing to client bindings. This new functionality should help complex use cases write correct transaction retry loops where dispatching on error classes is needed. <rdar://problem/24492860>

Other Changes

• Maximum shard size increased from 100MB to 500MB. <rdar://problem/21225031>

• Support backslash as an escape character for semicolons and backslashes when setting network options using environment variables. <rdar://problem/23902390>

• Add logGroup attribute to rolled trace events. <rdar://problem/25726509>

• Calling get range with a begin key == \xff\xff/worker_interfaces will return a list of serialized worker interfaces. Calling set with the key \xff\xff/reboot_worker and a value which is a serialized worker interface will reboot that process. <rdar://problem/26101019>

Earlier release notes

• 4.4 (API Version 440)

• 4.3 (API Version 430)

• 4.2 (API Version 420)

• 4.1 (API Version 410)

• 4.0 (API Version 400)

• 3.0 (API Version 300)

• 2.0 (API Version 200)

• 1.0 (API Version 100)

• Beta 3 (API Version 23)

• Beta 2 (API Version 22)

• Beta 1 (API Version 21)

• Alpha 6 (API Version 16)

• Alpha 5 (API Version 14)