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Update 5.4.0 CHANGELOG
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# 5.4.0 / Unreleased
### Details
https://github.com/DataDog/dd-agent/compare/5.3.2...5.4.0

### New integrations
* Mesosphere master
* Mesosphere slave

### Updated integrations
* Disk
* Docker
* Elasticsearch
* etcd
* Fluentd
* HAProxy
* HTTP Check
* JMXFetch
* Kafka consumer
* Mesosphere
* MySQL
* NTP
* PHP-FPM
* PostgreSQL
* Process
* SQL Server
* System
* TCP Check
* Varnish
* WMI

### Agent Developer mode
The Agent Developer Mode allows the user to collect a wide array of metrics concerning the performance of the agent itself. It provides visibility into bottlenecks when writing an `AgentCheck` and when making changes to the collector core.
For more information, see [our wiki page](https://github.com/DataDog/dd-agent/wiki/Agent-Developer-Mode).

### Deprecation notice

#### Old agent commands
Old command line tools `dd-agent`, `dd-forwarder` and `dogstatsd` are deprecated as for `5.4.0`. `dd-forwarder` & `dogstatsd` will be removed in a future version, and `dd-agent` functions will be limited to `check`, `jmx` and `flare`.
For more information, see [our wiki page](https://github.com/DataDog/dd-agent/wiki/Deprecation-notice--(old-command-line-tools))
See [#1457][], [#1569][]

#### Ganglia integration
The Ganglia integration is deprecated and will be removed in a future version of the Datadog Agent.
See [#1621][]

### Changes
* [FEATURE] Agent developer mode. See [#1577][]
* [FEATURE] Application names to tags ("dd_check:appname") support. See [#1570][]
* [FEATURE] Service metadata support. See [#1611][]
* [FEATURE] Dogstream: Add filename globing support. See [#1550][] (Thanks [@gtaylor][])
* [FEATURE] Elasticsearch: Add pending tasks metrics. See [#1507][]
* [FEATURE] Elasticsearch: Add tags to events. See [#1444][]
* [FEATURE] etcd: Add etcd latency metrics. See [#1429][]
* [FEATURE] Flare: Add commands standard error stream to content. See [#1586][]
* [FEATURE] Fluentd: Add type tag support. See [#1623][] (Thanks [@yyamano][])
* [FEATURE] HAProxy: Add new time metrics available in 1.5. See [#1579][] (Thanks [@warnerpr-cyan][])
* [FEATURE] HTTP/TCP Check: Add support for custom tags. See [#1642][]
* [FEATURE] JMXFetch: Add service check count to JMX checks statuses. See [#1559][]
* [FEATURE] Mesosphere: New checks for masters -reporting metrics from leaders- and slaves -reporting metrics from the selected tasks-. See [#1535][]
* [FEATURE] MySQL: Add threads running metrics. See [#1613][] (Thanks [@polynomial][])
* [FEATURE] PHP-FPM: Add custom ping reply support. See [#1582][] (Thanks [@squaresurf][])
* [FEATURE] System: Add system swap metrics. See [#1549][]

* [IMPROVEMENT] Limit process restart attempts on Windows on a specific time frame. See [#1664][]
* [IMPROVEMENT] Only start the Collector and Dogstatsd when needed. See [#1569][]
* [IMPROVEMENT] Use internal `/run` for temporary pid and pickle files. See [#1569][]
* [IMPROVEMENT] Disk: New check based on `psutil` replaces the old system check. See [#1596][]
* [IMPROVEMENT] JMXFetch: Run JMXFetch as `dd-agent` user. See [#1619][]
* [IMPROVEMENT] NTP: Use Datadog NTP pool. See [#1618][]
* [IMPROVEMENT] Process: Cache AccessDenied failures and PID list. See [#1595][]
* [IMPROVEMENT] SQL Server: Set a timeout for each SQL command, default to 30s. See [#1446][]

* [BUGFIX] Cast service checks messages to strings. See [#1617][]
* [BUGFIX] Fix incorrect EC2 metadata resulting from the no proxy environment settings. See [#1650][] [#1594][]
* [BUGFIX] Uses NTP check settings to avoid failures in status checks. See [#1651][] [#1558][]
* [BUGFIX] Disk: Fix a bug where all devices were ignored if the device blacklist regex was empty. See [#1666][]
* [BUGFIX] Docker: Fix intermittent failures (bad support) when a container has no name. See [#1565][]
* [BUGFIX] Elasticsearch: Fix data being illegitimately filtered out when the local node reports under a different hostname. See [#1657][]
* [BUGFIX] HTTP Check: Fix status type errors in service check. See [#1644][]
* [BUGFIX] JMXFetch: Clean previous JMX status python file at start. See [#1655][]
* [BUGFIX] JMXFetch: Fix `jmx` agent commands false warning. See [#1612][].
* [BUGFIX] JMXFetch: Format service check names prefix names to strip non alphabetic characters.
* [BUGFIX] JMXFetch: Properly exit on Windows when a specified file is created. See [#1643][]
* [BUGFIX] JMXFetch: Rename 'host' bean parameter to 'bean_host' in tags to avoid conflicts.
* [BUGFIX] JMXFetch: Support bean names that have an attribute with an empty value.
* [BUGFIX] Kafka consumer: Add timeout for ZooKeeper and Kafka connections. See [#1592][] [#1589][]
* [BUGFIX] Mesosphere: Cast error messages to strings. See [#1614][] [TEST?]
* [BUGFIX] PostgreSQL: Ignore `rdsadmin` database in PostgreSQL check to avoid permission error. See [#1590][] (Thanks [@etrepum][])
* [BUGFIX] PostgreSQL: Properly log bugs for custom metrics. See [#1633][] (Thanks [@orenmazor][])
* [BUGFIX] SQL Server: Fix collector freezes when connection is failing. See [#1640][]
* [BUGFIX] SQL Server: Properly close cursor, avoid leaks. See [#1631][]
* [BUGFIX] SQL Server: Send fractional metrics as floats. See [#1616][]
* [BUGFIX] Varnish: Allow tags in varnish 3 XML style parsing. See [#1645][]
* [BUGFIX] WMI: Cast tag values as strings. See [#1630][]


# 5.3.2 / 04-29-2015
**Debian only**

Expand Down Expand Up @@ -1526,19 +1622,23 @@ If you use ganglia, you want this version.
[#1255]: https://github.com/DataDog/dd-agent/issues/1255
[#1260]: https://github.com/DataDog/dd-agent/issues/1260
[#1267]: https://github.com/DataDog/dd-agent/issues/1267
[#1269]: https://github.com/DataDog/dd-agent/issues/1269
[#1272]: https://github.com/DataDog/dd-agent/issues/1272
[#1273]: https://github.com/DataDog/dd-agent/issues/1273
[#1274]: https://github.com/DataDog/dd-agent/issues/1274
[#1275]: https://github.com/DataDog/dd-agent/issues/1275
[#1278]: https://github.com/DataDog/dd-agent/issues/1278
[#1279]: https://github.com/DataDog/dd-agent/issues/1279
[#1281]: https://github.com/DataDog/dd-agent/issues/1281
[#1282]: https://github.com/DataDog/dd-agent/issues/1282
[#1284]: https://github.com/DataDog/dd-agent/issues/1284
[#1285]: https://github.com/DataDog/dd-agent/issues/1285
[#1297]: https://github.com/DataDog/dd-agent/issues/1297
[#1310]: https://github.com/DataDog/dd-agent/issues/1310
[#1318]: https://github.com/DataDog/dd-agent/issues/1318
[#1326]: https://github.com/DataDog/dd-agent/issues/1326
[#1332]: https://github.com/DataDog/dd-agent/issues/1332
[#1343]: https://github.com/DataDog/dd-agent/issues/1343
[#1345]: https://github.com/DataDog/dd-agent/issues/1345
[#1350]: https://github.com/DataDog/dd-agent/issues/1350
[#1370]: https://github.com/DataDog/dd-agent/issues/1370
Expand All @@ -1561,24 +1661,72 @@ If you use ganglia, you want this version.
[#1415]: https://github.com/DataDog/dd-agent/issues/1415
[#1416]: https://github.com/DataDog/dd-agent/issues/1416
[#1422]: https://github.com/DataDog/dd-agent/issues/1422
[#1429]: https://github.com/DataDog/dd-agent/issues/1429
[#1435]: https://github.com/DataDog/dd-agent/issues/1435
[#1436]: https://github.com/DataDog/dd-agent/issues/1436
[#1438]: https://github.com/DataDog/dd-agent/issues/1438
[#1441]: https://github.com/DataDog/dd-agent/issues/1441
[#1442]: https://github.com/DataDog/dd-agent/issues/1442
[#1443]: https://github.com/DataDog/dd-agent/issues/1443
[#1444]: https://github.com/DataDog/dd-agent/issues/1444
[#1446]: https://github.com/DataDog/dd-agent/issues/1446
[#1447]: https://github.com/DataDog/dd-agent/issues/1447
[#1454]: https://github.com/DataDog/dd-agent/issues/1454
[#1457]: https://github.com/DataDog/dd-agent/issues/1457
[#1459]: https://github.com/DataDog/dd-agent/issues/1459
[#1461]: https://github.com/DataDog/dd-agent/issues/1461
[#1476]: https://github.com/DataDog/dd-agent/issues/1476
[#1487]: https://github.com/DataDog/dd-agent/issues/1487
[#1490]: https://github.com/DataDog/dd-agent/issues/1490
[#1503]: https://github.com/DataDog/dd-agent/issues/1503
[#1507]: https://github.com/DataDog/dd-agent/issues/1507
[#1509]: https://github.com/DataDog/dd-agent/issues/1509
[#1511]: https://github.com/DataDog/dd-agent/issues/1511
[#1512]: https://github.com/DataDog/dd-agent/issues/1512
[#1518]: https://github.com/DataDog/dd-agent/issues/1518
[#1535]: https://github.com/DataDog/dd-agent/issues/1535
[#1549]: https://github.com/DataDog/dd-agent/issues/1549
[#1550]: https://github.com/DataDog/dd-agent/issues/1550
[#1558]: https://github.com/DataDog/dd-agent/issues/1558
[#1559]: https://github.com/DataDog/dd-agent/issues/1559
[#1561]: https://github.com/DataDog/dd-agent/issues/1561
[#1565]: https://github.com/DataDog/dd-agent/issues/1565
[#1569]: https://github.com/DataDog/dd-agent/issues/1569
[#1570]: https://github.com/DataDog/dd-agent/issues/1570
[#1577]: https://github.com/DataDog/dd-agent/issues/1577
[#1579]: https://github.com/DataDog/dd-agent/issues/1579
[#1582]: https://github.com/DataDog/dd-agent/issues/1582
[#1586]: https://github.com/DataDog/dd-agent/issues/1586
[#1589]: https://github.com/DataDog/dd-agent/issues/1589
[#1590]: https://github.com/DataDog/dd-agent/issues/1590
[#1592]: https://github.com/DataDog/dd-agent/issues/1592
[#1594]: https://github.com/DataDog/dd-agent/issues/1594
[#1595]: https://github.com/DataDog/dd-agent/issues/1595
[#1596]: https://github.com/DataDog/dd-agent/issues/1596
[#1611]: https://github.com/DataDog/dd-agent/issues/1611
[#1612]: https://github.com/DataDog/dd-agent/issues/1612
[#1613]: https://github.com/DataDog/dd-agent/issues/1613
[#1614]: https://github.com/DataDog/dd-agent/issues/1614
[#1616]: https://github.com/DataDog/dd-agent/issues/1616
[#1617]: https://github.com/DataDog/dd-agent/issues/1617
[#1618]: https://github.com/DataDog/dd-agent/issues/1618
[#1619]: https://github.com/DataDog/dd-agent/issues/1619
[#1621]: https://github.com/DataDog/dd-agent/issues/1621
[#1623]: https://github.com/DataDog/dd-agent/issues/1623
[#1630]: https://github.com/DataDog/dd-agent/issues/1630
[#1631]: https://github.com/DataDog/dd-agent/issues/1631
[#1633]: https://github.com/DataDog/dd-agent/issues/1633
[#1640]: https://github.com/DataDog/dd-agent/issues/1640
[#1642]: https://github.com/DataDog/dd-agent/issues/1642
[#1643]: https://github.com/DataDog/dd-agent/issues/1643
[#1644]: https://github.com/DataDog/dd-agent/issues/1644
[#1645]: https://github.com/DataDog/dd-agent/issues/1645
[#1650]: https://github.com/DataDog/dd-agent/issues/1650
[#1651]: https://github.com/DataDog/dd-agent/issues/1651
[#1655]: https://github.com/DataDog/dd-agent/issues/1655
[#1657]: https://github.com/DataDog/dd-agent/issues/1657
[#1664]: https://github.com/DataDog/dd-agent/issues/1664
[#1666]: https://github.com/DataDog/dd-agent/issues/1666
[@AirbornePorcine]: https://github.com/AirbornePorcine
[@CaptTofu]: https://github.com/CaptTofu
[@Osterjour]: https://github.com/Osterjour
Expand All @@ -1596,9 +1744,11 @@ If you use ganglia, you want this version.
[@djensen47]: https://github.com/djensen47
[@donalguy]: https://github.com/donalguy
[@echohead]: https://github.com/echohead
[@etrepum]: https://github.com/etrepum
[@glickbot]: https://github.com/glickbot
[@gphat]: https://github.com/gphat
[@graemej]: https://github.com/graemej
[@gtaylor]: https://github.com/gtaylor
[@handigarde]: https://github.com/handigarde
[@host]: https://github.com/host
[@igor47]: https://github.com/igor47
Expand All @@ -1622,16 +1772,21 @@ If you use ganglia, you want this version.
[@nambrosch]: https://github.com/nambrosch
[@ordenull]: https://github.com/ordenull
[@oremj]: https://github.com/oremj
[@orenmazor]: https://github.com/orenmazor
[@patrickbcullen]: https://github.com/patrickbcullen
[@pbitty]: https://github.com/pbitty
[@polynomial]: https://github.com/polynomial
[@rl-0x0]: https://github.com/rl-0x0
[@ronaldbradford]: https://github.com/ronaldbradford
[@shamada-kuuluu]: https://github.com/shamada-kuuluu
[@sirlantis]: https://github.com/sirlantis
[@skingry]: https://github.com/skingry
[@slushpupie]: https://github.com/slushpupie
[@squaresurf]: https://github.com/squaresurf
[@steeve]: https://github.com/steeve
[@stefan-mees]: https://github.com/stefan-mees
[@takus]: https://github.com/takus
[@tomduckering]: https://github.com/tomduckering
[@walkeran]: https://github.com/walkeran
[@warnerpr-cyan]: https://github.com/warnerpr-cyan
[@yyamano]: https://github.com/yyamano

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