System breaking changes for 8.0

CHANGELOG.next.asciidoc

@@ -117,6 +117,7 @@ https:/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Remove deprecated fields in Docker module. {issue}11835[11835] {pull}27933[27933]
 - Remove deprecated fields in Kafka module. {pull}27938[27938]
 - Remove deprecated config option default_region from aws module. {pull}28120[28120]
+- Remove linux-only metrics from diskio, memory {pull}28292[28292]
 - Remove deprecated config option perfmon.counters from windows/perfmon metricset. {pull}28282[28282]
 - Remove deprecated fields in Redis module. {issue}11835[11835] {pull}28246[28246]
 

metricbeat/docs/fields.asciidoc

@@ -57728,140 +57728,6 @@ type: long
 
 --
 
-*`system.diskio.iostat.read.request.merges_per_sec`*::
-+
---
-The number of read requests merged per second that were queued to the device.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.write.request.merges_per_sec`*::
-+
---
-The number of write requests merged per second that were queued to the device.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.read.request.per_sec`*::
-+
---
-The number of read requests that were issued to the device per second
-
-
-type: float
-
---
-
-*`system.diskio.iostat.write.request.per_sec`*::
-+
---
-The number of write requests that were issued to the device per second
-
-
-type: float
-
---
-
-*`system.diskio.iostat.read.per_sec.bytes`*::
-+
---
-The number of Bytes read from the device per second.
-
-
-type: float
-
-format: bytes
-
---
-
-*`system.diskio.iostat.read.await`*::
-+
---
-The average time spent for read requests issued to the device to be served.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.write.per_sec.bytes`*::
-+
---
-The number of Bytes write from the device per second.
-
-
-type: float
-
-format: bytes
-
---
-
-*`system.diskio.iostat.write.await`*::
-+
---
-The average time spent for write requests issued to the device to be served.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.request.avg_size`*::
-+
---
-The average size (in bytes) of the requests that were issued to the device.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.queue.avg_size`*::
-+
---
-The average queue length of the requests that were issued to the device.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.await`*::
-+
---
-The average time spent for requests issued to the device to be served.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.service_time`*::
-+
---
-The average service time (in milliseconds) for I/O requests that were issued to the device.
-
-
-type: float
-
---
-
-*`system.diskio.iostat.busy`*::
-+
---
-Percentage of CPU time during which I/O requests were issued to the device (bandwidth utilization for the device). Device saturation occurs when this value is close to 100%.
-
-
-type: float
-
---
-
 [float]
 === entropy
 
@@ -58304,42 +58170,6 @@ format: bytes
 
 --
 
-*`system.memory.swap.out.pages`*::
-+
---
-count of pages swapped out
-
-type: long
-
---
-
-*`system.memory.swap.in.pages`*::
-+
---
-count of pages swapped in
-
-type: long
-
---
-
-*`system.memory.swap.readahead.pages`*::
-+
---
-swap readahead pages
-
-type: long
-
---
-
-*`system.memory.swap.readahead.cached`*::
-+
---
-swap readahead cache hits
-
-type: long
-
---
-
 *`system.memory.swap.used.pct`*::
 +
 --
@@ -58352,203 +58182,6 @@ format: percent
 
 --
 
-[float]
-=== page_stats
-
-memory page statistics
-
-
-*`system.memory.page_stats.pgscan_kswapd.pages`*::
-+
---
-pages scanned by kswapd
-
-type: long
-
-format: number
-
---
-
-*`system.memory.page_stats.pgscan_direct.pages`*::
-+
---
-pages scanned directly
-
-type: long
-
-format: number
-
---
-
-*`system.memory.page_stats.pgfree.pages`*::
-+
---
-pages freed by the system
-
-type: long
-
-format: number
-
---
-
-*`system.memory.page_stats.pgsteal_kswapd.pages`*::
-+
---
-number of pages reclaimed by kswapd
-
-type: long
-
-format: number
-
---
-
-*`system.memory.page_stats.pgsteal_direct.pages`*::
-+
---
-number of pages reclaimed directly
-
-type: long
-
-format: number
-
---
-
-*`system.memory.page_stats.direct_efficiency.pct`*::
-+
---
-direct reclaim efficiency percentage. A lower percentage indicates the system is struggling to reclaim memory.
-
-type: scaled_float
-
-format: percent
-
---
-
-*`system.memory.page_stats.kswapd_efficiency.pct`*::
-+
---
-kswapd reclaim efficiency percentage. A lower percentage indicates the system is struggling to reclaim memory.
-
-type: scaled_float
-
-format: percent
-
---
-
-[float]
-=== hugepages
-
-This group contains statistics related to huge pages usage on the system.
-
-
-*`system.memory.hugepages.total`*::
-+
---
-Number of huge pages in the pool.
-
-
-type: long
-
-format: number
-
---
-
-*`system.memory.hugepages.used.bytes`*::
-+
---
-Memory used in allocated huge pages.
-
-
-type: long
-
-format: bytes
-
---
-
-*`system.memory.hugepages.used.pct`*::
-+
---
-Percentage of huge pages used.
-
-
-type: long
-
-format: percent
-
---
-
-*`system.memory.hugepages.free`*::
-+
---
-Number of available huge pages in the pool.
-
-
-type: long
-
-format: number
-
---
-
-*`system.memory.hugepages.reserved`*::
-+
---
-Number of reserved but not allocated huge pages in the pool.
-
-
-type: long
-
-format: number
-
---
-
-*`system.memory.hugepages.surplus`*::
-+
---
-Number of overcommited huge pages.
-
-
-type: long
-
-format: number
-
---
-
-*`system.memory.hugepages.default_size`*::
-+
---
-Default size for huge pages.
-
-
-type: long
-
-format: bytes
-
---
-
-[float]
-=== swap.out
-
-huge pages swapped out
-
-
-*`system.memory.hugepages.swap.out.pages`*::
-+
---
-pages swapped out
-
-type: long
-
---
-
-*`system.memory.hugepages.swap.out.fallback`*::
-+
---
-Count of huge pages that must be split before swapout
-
-type: long
-
---
-
 [float]
 === network