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Yandex Managed Service for OpenSearch
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In this article:

  • CPU metrics
  • Disk metrics
  • Disk I/O metrics
  • RAM metrics
  • Network metrics
  • Service metrics

Yandex Monitoring metric reference

Written by
Yandex Cloud
Updated at April 28, 2025
  • CPU metrics
  • Disk metrics
  • Disk I/O metrics
  • RAM metrics
  • Network metrics
  • Service metrics

This section describes Managed Service for OpenSearch metrics delivered to Monitoring.

The name label stores the metric name.

Labels shared by all Managed Service for OpenSearch metrics:

Label Value
service Service ID: managed-opensearch
resource_type Resource type: cluster
resource_id Cluster ID
host Host FQDN

CPU metricsCPU metrics

These metrics show processor core workload.

Name
Type, units
Description
cpu.fraction
DGAUGE, %
Guaranteed vCPU performance
cpu.guarantee
DGAUGE, count
Guaranteed number of cores
cpu.limit
DGAUGE, count
Maximum number of cores in use
cpu.guest
DGAUGE, %
CPU core usage, guest usage type
cpu.guest_nice
DGAUGE, %
CPU core usage, guest_nice usage type
cpu.idle
DGAUGE, %
CPU core usage, idle usage type
cpu.iowait
DGAUGE, %
CPU core usage, iowait usage type
cpu.irq
DGAUGE, %
CPU core usage, irq usage type
cpu.nice
DGAUGE, %
CPU core usage, nice usage type
cpu.softirq
DGAUGE, %
CPU core usage, softirq usage type
cpu.steal
DGAUGE, %
CPU core usage, steal usage type
cpu.system
DGAUGE, %
CPU core usage, system usage type
cpu.user
DGAUGE, %
CPU core usage, user usage type
cpu_utilization_by_db_15
DGAUGE, %
Average VM processor core (vCPU) utilization by a database over 15 seconds (%). It ranges from 0% to the vCPU performance level.
cpu_utilization_by_db_15_limit
DGAUGE, %
Maximum VM processor core (vCPU) utilization by a database over 15 seconds (%)
cpu_utilization_by_db_60
DGAUGE, %
Average VM processor core (vCPU) utilization by a database over 60 seconds (%)
cpu_utilization_by_db_60_limit
DGAUGE, %
Maximum VM processor core (vCPU) utilization by a database over 60 seconds (%)
load.avg_15min
DGAUGE, %
Average load over 15 minutes
load.avg_1min
DGAUGE, %
Average load over one minute
load.avg_5min
DGAUGE, %
Average load over five minutes

Disk metricsDisk metrics

Name
Type, units
Description
disk.free_bytes
DGAUGE, bytes
Free space
disk.free_inodes
DGAUGE, count
Free inodes
disk.total_bytes
DGAUGE, bytes
Available space
disk.total_inodes
DGAUGE, count
Available inodes
disk.used_bytes
DGAUGE, bytes
Used space
disk.used_inodes
DGAUGE, count
Used inodes

Disk I/O metricsDisk I/O metrics

Name
Type, units
Description
io.disk*.iops_in_progress
DGAUGE, count
Number of disk I/O operations in progress
io.disk*.merged_reads
DGAUGE, count
Number of merged read operations for a given disk
io.disk*.merged_writes
DGAUGE, count
Number of merged writes for a given disk
io.disk*.read_bytes
DGAUGE, bytes per second
Read speed for a given disk
io.disk*.read_count
DGAUGE, operations per second
Number of reads per second for a given disk
io.disk*.read_time
DGAUGE, milliseconds
Average read time for a given disk
io.disk*.utilization
DGAUGE, %
Utilization of a given disk; disabled for network drives.
io.disk*.weighted_io_time
DGAUGE, milliseconds
I/O wait time for a given disk
io.disk*.write_bytes
DGAUGE, bytes per second
Write speed for a given disk
io.disk*.write_count
DGAUGE, operations per second
Number of writes per second for a given disk
io.disk*.write_time
DGAUGE, milliseconds
Average write time for a given disk

RAM metricsRAM metrics

Name
Type, units
Description
mem.active_bytes
DGAUGE, bytes
Active resident memory (frequently accessed and released when absolutely necessary)
mem.available_bytes
DGAUGE, bytes
RAM usage, available usage type
mem.available_percent_bytes
DGAUGE, %
Percentage of RAM usage, available usage type
mem.buffers_bytes
DGAUGE, bytes
RAM usage, buffers usage type
mem.cached_bytes
DGAUGE, bytes
RAM usage, cached usage type
mem.commit_limit_bytes
DGAUGE, bytes
RAM usage, commit_limit usage type
mem.committed_as_bytes
DGAUGE, bytes
RAM usage, committed_as usage type
mem.dirty_bytes
DGAUGE, bytes
RAM usage, dirty usage type
mem.free_bytes
DGAUGE, bytes
Amount of free RAM available, excluding mem.buffers_bytes and mem.cached_bytes
mem.high_free_bytes
DGAUGE, bytes
RAM usage, high_free usage type
mem.high_total_bytes
DGAUGE, bytes
RAM usage, high_total usage type
mem.huge_page_size_bytes
DGAUGE, bytes
RAM usage, huge_page_size usage type
mem.huge_pages_free_bytes
DGAUGE, bytes
RAM usage, huge_pages_free usage type
mem.huge_pages_total_bytes
DGAUGE, bytes
RAM usage, huge_pages_total usage type
mem.inactive_bytes
DGAUGE, bytes
RAM usage, inactive usage type
mem.low_free_bytes
DGAUGE, bytes
RAM usage, low_free usage type
mem.low_total_bytes
DGAUGE, bytes
RAM usage, low_total usage type
mem.mapped_bytes
DGAUGE, bytes
RAM usage, mapped usage type
mem.page_tables_bytes
DGAUGE, bytes
RAM usage, page_tables usage type
mem.shared_bytes
DGAUGE, bytes
RAM usage, shared usage type
mem.slab_bytes
DGAUGE, bytes
RAM usage, slab usage type
mem.sreclaimable_bytes
DGAUGE, bytes
RAM usage, sreclaimable usage type
mem.sunreclaim_bytes
DGAUGE, bytes
RAM usage, sunreclaim usage type
mem.swap_cached_bytes
DGAUGE, bytes
RAM usage, swap_cached usage type
mem.swap_free_bytes
DGAUGE, bytes
RAM usage, swap_free usage type
mem.swap_total_bytes
DGAUGE, bytes
RAM usage, swap_total usage type
mem.total_bytes
DGAUGE, bytes
RAM usage, total usage type
mem.used_bytes
DGAUGE, bytes
Amount of RAM currently used by running processes
mem.used_percent_bytes
DGAUGE, %
Percentage of used RAM
mem.vmalloc_chunk_bytes
DGAUGE, bytes
RAM usage, vmalloc_chunk usage type
mem.vmalloc_total_bytes
DGAUGE, bytes
RAM usage, vmalloc_total usage type
mem.vmalloc_used_bytes
DGAUGE, bytes
RAM usage, vmalloc_used usage type
mem.write_back_bytes
DGAUGE, bytes
RAM usage, write_back usage type
mem.write_back_tmp_bytes
DGAUGE, bytes
RAM usage, write_back_tmp usage type

Network metricsNetwork metrics

Name
Type, units
Description
net.bytes_recv
DGAUGE, bytes per second
Network data receive rate
net.bytes_sent
DGAUGE, bytes per second
Network data transmit rate
net.drop_in
DGAUGE, count
Dropped receive packets
net.drop_out
DGAUGE, count
Dropped transmit packets
net.dropin
DGAUGE, count
Dropped receive packets
net.dropout
DGAUGE, count
Dropped transmit packets
net.err_in
DGAUGE, count
Receive error count
net.err_out
DGAUGE, count
Transmit error count
net.errin
DGAUGE, count
Receive error count
net.errout
DGAUGE, count
Transmit error count
net.packets_recv
DGAUGE, packets per second
Network packet receive rate
net.packets_sent
DGAUGE, packets per second
Network packet transmit rate

Service metricsService metrics

Name
Type, units
Description
active
DGAUGE, count
Active resident memory (frequently accessed and released when absolutely necessary)
available
DGAUGE, count
RAM usage, available usage type
available_percent
DGAUGE, %
Percentage of RAM usage, available usage type
buffered
DGAUGE, bytes
RAM usage, buffered usage type
bytes_recv
DGAUGE, bytes
Size of data received
bytes_sent
DGAUGE, bytes
Size of data sent
cached
DGAUGE, bytes
RAM usage, cached usage type
commit_limit
DGAUGE, bytes
RAM usage, commit_limit usage type
committed_as
DGAUGE, bytes
RAM usage, committed_as usage type
dirty
DGAUGE, bytes
RAM usage, dirty usage type
drop_in
DGAUGE, count
Dropped receive packets
drop_out
DGAUGE, count
Dropped transmit packets
err_in
DGAUGE, count
Receive error count
err_out
DGAUGE, count
Transmit error count
free
DGAUGE, bytes
RAM usage, free usage type
high_free
DGAUGE, bytes
RAM usage, high_free usage type
high_total
DGAUGE, bytes
RAM usage, high_total usage type
huge_page_size
DGAUGE, bytes
RAM usage, huge_page_size usage type
huge_pages_free
DGAUGE, bytes
RAM usage, huge_pages_free usage type
huge_pages_total
DGAUGE, bytes
RAM usage, huge_pages_total usage type
icmp_inaddrmaskreps
DGAUGE, count
Number of ICMP address mask reply messages received from the polled node
icmp_inaddrmasks
DGAUGE, count
Number of ICMP address mask request messages received
icmp_incsumerrors
DGAUGE, count
Total IP packets with checksum errors
icmp_indestunreachs
DGAUGE, count
Number of ICMP destination unreachable messages received
icmp_inechoreps
DGAUGE, count
Number of ICMP echo reply messages received
icmp_inechos
DGAUGE, count
Number of ICMP echo request messages received
icmp_inerrors
DGAUGE, count
Number of bad ICMP packets received, excluding those with checksum errors
icmp_inmsgs
DGAUGE, count
Total ICMP messages received
icmp_inparmprobs
DGAUGE, count
Number of ICMP parameter problem messages received
icmp_inredirects
DGAUGE, count
Number of ICMP redirect messages received
icmp_insrcquenchs
DGAUGE, count
Number of ICMP source quench messages received
icmp_intimeexcds
DGAUGE, count
Number of ICMP time exceeded messages received
icmp_intimestampreps
DGAUGE, count
Number of ICMP timestamp reply messages received
icmp_intimestamps
DGAUGE, count
Number of ICMP timestamp (request) messages received
icmp_outaddrmaskreps
DGAUGE, count
Number of ICMP address mask reply messages sent
icmp_outaddrmasks
DGAUGE, count
Number of ICMP address mask request messages sent
icmp_outdestunreachs
DGAUGE, count
Number of ICMP destination unreachable messages sent
icmp_outechoreps
DGAUGE, count
Number of ICMP echo reply messages sent
icmp_outechos
DGAUGE, count
Number of ICMP echo request messages sent
icmp_outerrors
DGAUGE, count
Number of ICMP messages not sent due to ICMP errors, such as buffer shortages
icmp_outmsgs
DGAUGE, count
Total ICMP messages the object in question attempted to send. This includes all messages counted by icmp_outerrors.
icmp_outparmprobs
DGAUGE, count
Number of ICMP parameter problem messages sent
icmp_outredirects
DGAUGE, count
Number of ICMP redirect messages sent
icmp_outsrcquenchs
DGAUGE, count
Number of ICMP source quench messages sent
icmp_outtimeexcds
DGAUGE, count
Number of ICMP time exceeded messages sent
icmp_outtimestampreps
DGAUGE, count
Number of ICMP timestamp reply messages sent
icmp_outtimestamps
DGAUGE, count
Number of ICMP timestamp (request) messages sent
icmpmsg_intype0
DGAUGE, count
Number of ICMP type 0 (echo reply) messages received
icmpmsg_intype8
DGAUGE, count
Number of ICMP type 8 (echo request) messages received
icmpmsg_outtype0
DGAUGE, count
Number of ICMP type 0 (echo reply) messages sent
icmpmsg_outtype3
DGAUGE, count
Number of ICMP type 3 (destination unreachable) messages sent
icmpmsg_outtype8
DGAUGE, count
Total number of ICMP type 8 (echo request) messages sent
inactive
DGAUGE, bytes
RAM usage, inactive usage type
inodes_free
DGAUGE, count
Free inodes
inodes_total
DGAUGE, count
Available inodes
inodes_used
DGAUGE, count
Used inodes
instance_userfault_broken
DGAUGE, count
Number of memory operation errors
iops_in_progress
DGAUGE, count
Number of disk I/O operations in progress
ip_defaultttl
DGAUGE, string
Default TTL value inserted into the IP header for IP packets generated in this object when the transport layer protocol does not provide a TTL.
ip_forwarding
DGAUGE
IP forwarding status (SNMP): 0 for disabled, 1 for enabled.
ip_forwdatagrams
DGAUGE, count
Number of inbound packets not destined for this object, triggering an attempt to find a forwarding route to the final IP destination. For objects not acting as IP gateways, this count includes only those packets that were source-routed through them and where the source route option was successfully processed.
ip_fragcreates
DGAUGE, count
Number of IP packet fragments generated due to fragmentation in the object in question
ip_fragfails
DGAUGE, count
Number of IP packets dropped due to failed fragmentation which was required in this object, e.g., because of the Do not fragment flag being set.
ip_fragoks
DGAUGE, count
Number of successfully fragmented IP packets
ip_inaddrerrors
DGAUGE, count
Number of inbound packets dropped due to an invalid destination IP address in the IP header for the object in question. This count includes invalid addresses, such as 0.0.0.0, and addresses of unsupported classes, e.g., Class E. For objects that do not act as IP gateways and therefore do not forward packets, this counter includes packets dropped because the destination address was not a local one.
ip_indelivers
DGAUGE, count
Total IP packets delivered
ip_indiscards
DGAUGE, count
Number of inbound IP packets encountering no issues preventing their further processing but still dropped, e.g., due to lack of buffer space. This counter does not include packets dropped while awaiting reassembly.
ip_inhdrerrors
DGAUGE, count
Number of inbound packets with header errors
ip_inreceives
DGAUGE, count
Total inbound packets received from interfaces, including those received in error
ip_inunknownprotos
DGAUGE, count
Number of unknown protocol packets received
ip_outdiscards
DGAUGE, count
Number of outgoing IP packets encountering no issues preventing their transmission to the destination but still dropped, e.g., due to lack of buffer space. Note that the counter would include packets counted in ip_forwdatagrams if they met this (discretionary) drop criterion.
ip_outnoroutes
DGAUGE, count
Number of IP packets dropped because no route to their destination was found. This metric tracks all packets counted in ip_forwdatagrams that meet this no-route criterion. This includes any packets a host cannot redirect because all its default gateways are down.
ip_outrequests
DGAUGE, count
Total IP packets provided by local IP user-level protocols (including ICMP) to IP in requests for transmission. This metric does not include the packets counted in ip_forwdatagrams.
ip_reasmfails
DGAUGE, count
Number of failures detected by the IP reassembly algorithm due to reasons, such as timeouts, errors, etc. This is not necessarily a count of dropped IP fragments, since certain algorithms, like the one in RFC 815, may lose count of fragments while reassembling them as they are received.
ip_reasmoks
DGAUGE, count
Number of IP packets successfully reassembled
ip_reasmreqds
DGAUGE, count
Number of received IP fragments requiring reassembly in the object in question
ip_reasmtimeout
DGAUGE, seconds
Maximum time, in seconds, received fragments are kept while awaiting reassembly in the object in question.
low_free
DGAUGE, bytes
RAM usage, low_free usage type
low_total
DGAUGE, bytes
RAM usage, low_total usage type
mapped
DGAUGE, bytes
RAM usage, mapped usage type
merged_reads
DGAUGE, count
Number of merged disk reads
merged_writes
DGAUGE, count
Number of merged disk writes
n_cpus
DGAUGE, count
Maximum number of cores in use
n_users
DGAUGE, count
Limit on the number of users
packets_recv
DGAUGE, packets per second
Network packet receive rate
packets_sent
DGAUGE, packets per second
Network packet transmit rate
page_tables
DGAUGE, bytes
RAM usage, page_tables usage type
read_bytes
DGAUGE, bytes per second
Read speed for a given disk
read_count
DGAUGE, operations per second
Number of reads per second for a given disk
read_time
DGAUGE, milliseconds
Average disk read time
shared
DGAUGE, bytes
RAM usage, shared usage type
slab
DGAUGE, bytes
RAM usage, slab usage type
sreclaimable
DGAUGE, bytes
RAM usage, sreclaimable usage type
sunreclaim
DGAUGE, bytes
RAM usage, sunreclaim usage type
swap_cached
DGAUGE, bytes
RAM usage, swap_cached usage type
swap_free
DGAUGE, bytes
RAM usage, swap_free usage type
swap_total
DGAUGE, bytes
RAM usage, swap_total usage type
tcp_activeopens
DGAUGE, count
Number of times TCP connections have made a direct transition from the CLOSED state to SYN-SENT.
tcp_attemptfails
DGAUGE, count
Number of times TCP connections have made a direct transition to the CLOSED state from either the SYN-SENT or SYN-RCVD state, plus the number of direct TCP connection transitions.
tcp_currestab
DGAUGE, count
Current number of TCP connections for the ESTABLISHED or CLOSE WAIT state
tcp_estabresets
DGAUGE, count
Number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED or CLOSE-WAIT state.
tcp_incsumerrors
DGAUGE, count
This value increases when a received TCP packet has an invalid checksum.
tcp_inerrs
DGAUGE, count
Total segments received with an error, such as invalid TCP checksums
tcp_insegs
DGAUGE, count
Total segments received, including those received in error
tcp_maxconn
DGAUGE, count
Maximum allowed number of TCP connections
tcp_outrsts
DGAUGE, count
Number of TCP segments sent with the RST flag
tcp_outsegs
DGAUGE, count
Total TCP segments sent
tcp_passiveopens
DGAUGE, count
Number of times TCP connections have made a direct transition to the SYN-RCVD state from LISTEN
tcp_retranssegs
DGAUGE, count
Total segments retransmitted, i.e., number of TCP segments sent containing one or more previously transmitted octets.
tcp_rtoalgorithm
DGAUGE
Algorithm used to determine the timeout for retransmitting unacknowledged octets
tcp_rtomax
DGAUGE, milliseconds
Maximum TCP retransmission timeout, in milliseconds
tcp_rtomin
DGAUGE, milliseconds
Minimum TCP retransmission timeout, in milliseconds
total
DGAUGE, bytes
RAM usage, total usage type
udp_ignoredmulti
DGAUGE, count
Number of UDP multicast packets ignored
udp_incsumerrors
DGAUGE, count
This value increases when a received UDP packet contains an invalid kernel code checksum.
udp_indatagrams
DGAUGE, count
Total UDP packets received
udp_inerrors
DGAUGE, count
Number of bad UDP packets received, excluding those with checksum errors
udp_noports
DGAUGE, count
Total UDP packets received with no application on the destination port
udp_outdatagrams
DGAUGE, count
Total UDP packets sent from the object in question
udp_rcvbuferrors
DGAUGE, count
Number of UDP receive buffer errors
udp_sndbuferrors
DGAUGE, count
Number of UDP send buffer errors
udplite_ignoredmulti
DGAUGE, count
Number of UDP-Lite multicast packets ignored
udplite_incsumerrors
DGAUGE, count
This value increases when a received UDP-Lite packet contains an invalid kernel code checksum.
udplite_indatagrams
DGAUGE, count
Total UDP-Lite packets received
udplite_inerrors
DGAUGE, count
Total UDP-Lite packet receive errors
udplite_noports
DGAUGE, count
Total UDP-Lite packets received without a listener on the destination port. Irregularities in this counter may occur when reinitializing the management system and at other times, as indicated by the udplite_statsdiscontinuitytime value.
udplite_outdatagrams
DGAUGE, count
Total UDP-Lite packets sent
udplite_rcvbuferrors
DGAUGE, count
This value increases when no memory can be allocated to process an inbound UDP-Lite packet.
udplite_sndbuferrors
DGAUGE, count
This value increases when no memory can be allocated to send an inbound UDP-Lite packet.
uptime
DGAUGE, %
Uptime percentage
usage_guest
DGAUGE, %
CPU core usage, guest usage type
usage_guest_nice
DGAUGE, %
CPU core usage, guest_nice usage type
usage_idle
DGAUGE, %
CPU core usage, idle usage type
usage_iowait
DGAUGE, %
CPU core usage, iowait usage type
usage_irq
DGAUGE, %
CPU core usage, irq usage type
usage_nice
DGAUGE, %
CPU core usage, nice usage type
usage_softirq
DGAUGE, %
CPU core usage, softirq usage type
usage_steal
DGAUGE, %
CPU core usage, steal usage type
usage_system
DGAUGE, %
CPU core usage, system usage type
usage_user
DGAUGE, %
CPU core usage, user usage type
used
DGAUGE, bytes
RAM usage, used usage type
used_percent
DGAUGE, %
Percentage of RAM usage, used usage type
utilization
DGAUGE, %
Average VM processor core (vCPU) utilization by a database
vmalloc_chunk
DGAUGE, bytes
RAM usage, vmalloc_chunk usage type
vmalloc_total
DGAUGE, bytes
RAM usage, vmalloc_total usage type
vmalloc_used
DGAUGE, bytes
RAM usage, vmalloc_used usage type
weighted_io_time
DGAUGE, milliseconds
I/O wait time
write_back
DGAUGE, bytes
RAM usage, write_back usage type
write_back_tmp
DGAUGE, bytes
RAM usage, write_back_tmp usage type
write_bytes
DGAUGE, bytes per second
Disk write speed
write_count
DGAUGE, operations per second
Number of writes per second
write_time
DGAUGE, milliseconds
Average disk write time

OpenSearch native metricsOpenSearch native metrics

Name
Type, units
opensearch_discovered_cluster_manager
DGAUGE, 0/1
opensearch_discovered_master
DGAUGE, 0/1
opensearch_fs_io_stats_total_operations
DGAUGE, count
opensearch_fs_io_stats_total_read_kilobytes
DGAUGE, kilobytes
opensearch_fs_io_stats_total_read_operations
DGAUGE, count
opensearch_fs_io_stats_total_write_kilobytes
DGAUGE, kilobytes
opensearch_fs_io_stats_total_write_operations
DGAUGE, count
opensearch_fs_total_available_in_bytes
DGAUGE, bytes
opensearch_fs_total_cache_reserved_in_bytes
DGAUGE, bytes
opensearch_fs_total_free_in_bytes
DGAUGE, bytes
opensearch_fs_total_total_in_bytes
DGAUGE, bytes
opensearch_fs_total_used_in_bytes
DGAUGE, bytes
opensearch_fs_total_used_percent
DGAUGE, count
opensearch_http_current_open
DGAUGE, count
opensearch_http_total_opened
DGAUGE, count
opensearch_indices_completion_size_in_bytes
DGAUGE, bytes
opensearch_indices_docs_count
DGAUGE, count
opensearch_indices_docs_deleted
DGAUGE, count
opensearch_indices_fielddata_evictions
DGAUGE, count
opensearch_indices_fielddata_memory_size_in_bytes
DGAUGE, bytes
opensearch_indices_flush_periodic
DGAUGE, count
opensearch_indices_flush_total
DGAUGE, count
opensearch_indices_flush_total_time_in_millis
DGAUGE, milliseconds
opensearch_indices_get_current
DGAUGE, count
opensearch_indices_get_exists_time_in_millis
DGAUGE, milliseconds
opensearch_indices_get_exists_total
DGAUGE, count
opensearch_indices_get_missing_time_in_millis
DGAUGE, milliseconds
opensearch_indices_get_missing_total
DGAUGE, count
opensearch_indices_get_time_in_millis
DGAUGE, milliseconds
opensearch_indices_get_total
DGAUGE, count
opensearch_indices_indexing_delete_current
DGAUGE, count
opensearch_indices_indexing_delete_time_in_millis
DGAUGE, milliseconds
opensearch_indices_indexing_delete_total
DGAUGE, count
opensearch_indices_indexing_index_current
DGAUGE, count
opensearch_indices_indexing_index_failed
DGAUGE, count
opensearch_indices_indexing_index_time_in_millis
DGAUGE, milliseconds
opensearch_indices_indexing_index_total
DGAUGE, count
opensearch_indices_indexing_noop_update_total
DGAUGE, count
opensearch_indices_indexing_throttle_time_in_millis
DGAUGE, milliseconds
opensearch_indices_merges_current
DGAUGE, count
opensearch_indices_merges_current_docs
DGAUGE, count
opensearch_indices_merges_current_size_in_bytes
DGAUGE, bytes
opensearch_indices_merges_total
DGAUGE, count
opensearch_indices_merges_total_auto_throttle_in_bytes
DGAUGE, bytes
opensearch_indices_merges_total_docs
DGAUGE, count
opensearch_indices_merges_total_size_in_bytes
DGAUGE, bytes
opensearch_indices_merges_total_stopped_time_in_millis
DGAUGE, milliseconds
opensearch_indices_merges_total_throttled_time_in_millis
DGAUGE, milliseconds
opensearch_indices_merges_total_time_in_millis
DGAUGE, milliseconds
opensearch_indices_query_cache_cache_count
DGAUGE, count
opensearch_indices_query_cache_cache_size
DGAUGE, bytes
opensearch_indices_query_cache_evictions
DGAUGE, count
opensearch_indices_query_cache_hit_count
DGAUGE, count
opensearch_indices_query_cache_memory_size_in_bytes
DGAUGE, bytes
opensearch_indices_query_cache_miss_count
DGAUGE, count
opensearch_indices_query_cache_total_count
DGAUGE, count
opensearch_indices_recovery_current_as_source
DGAUGE, count
opensearch_indices_recovery_current_as_target
DGAUGE, count
opensearch_indices_recovery_throttle_time_in_millis
DGAUGE, milliseconds
opensearch_indices_refresh_external_total
DGAUGE, count
opensearch_indices_refresh_external_total_time_in_millis
DGAUGE, milliseconds
opensearch_indices_refresh_listeners
DGAUGE, count
opensearch_indices_refresh_total
DGAUGE, count
opensearch_indices_refresh_total_time_in_millis
DGAUGE, milliseconds
opensearch_indices_request_cache_evictions
DGAUGE, count
opensearch_indices_request_cache_hit_count
DGAUGE, count
opensearch_indices_request_cache_memory_size_in_bytes
DGAUGE, bytes
opensearch_indices_request_cache_miss_count
DGAUGE, count
opensearch_indices_search_fetch_current
DGAUGE, count
opensearch_indices_search_fetch_time_in_millis
DGAUGE, milliseconds
opensearch_indices_search_fetch_total
DGAUGE, count
opensearch_indices_search_open_contexts
DGAUGE, count
opensearch_indices_search_point_in_time_current
DGAUGE, count
opensearch_indices_search_point_in_time_time_in_millis
DGAUGE, milliseconds
opensearch_indices_search_point_in_time_total
DGAUGE, count
opensearch_indices_search_query_current
DGAUGE, count
opensearch_indices_search_query_time_in_millis
DGAUGE, milliseconds
opensearch_indices_search_query_total
DGAUGE, count
opensearch_indices_search_scroll_current
DGAUGE, count
opensearch_indices_search_scroll_time_in_millis
DGAUGE, milliseconds
opensearch_indices_search_scroll_total
DGAUGE, count
opensearch_indices_search_suggest_current
DGAUGE, count
opensearch_indices_search_suggest_time_in_millis
DGAUGE, milliseconds
opensearch_indices_search_suggest_total
DGAUGE, count
opensearch_indices_segments_count
DGAUGE, count
opensearch_indices_segments_doc_values_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_fixed_bit_set_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_index_writer_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_max_unsafe_auto_id_timestamp
DGAUGE, timestamp
opensearch_indices_segments_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_norms_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_points_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_stored_fields_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_term_vectors_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_terms_memory_in_bytes
DGAUGE, bytes
opensearch_indices_segments_version_map_memory_in_bytes
DGAUGE, bytes
opensearch_indices_store_reserved_in_bytes
DGAUGE, bytes
opensearch_indices_store_size_in_bytes
DGAUGE, bytes
opensearch_indices_translog_earliest_last_modified_age
DGAUGE, count
opensearch_indices_translog_operations
DGAUGE, count
opensearch_indices_translog_size_in_bytes
DGAUGE, bytes
opensearch_indices_translog_uncommitted_operations
DGAUGE, count
opensearch_indices_translog_uncommitted_size_in_bytes
DGAUGE, bytes
opensearch_indices_warmer_current
DGAUGE, count
opensearch_indices_warmer_total
DGAUGE, count
opensearch_indices_warmer_total_time_in_millis
DGAUGE, milliseconds
opensearch_jvm_gc_collectors_old_collection_count
DGAUGE, count
opensearch_jvm_gc_collectors_young_collection_count
DGAUGE, count
opensearch_jvm_mem_heap_committed_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_heap_max_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_heap_pressure
DGAUGE
opensearch_jvm_mem_heap_used_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_heap_used_percent
DGAUGE, count
opensearch_jvm_mem_non_heap_committed_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_non_heap_used_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_pools_old_max_in_bytes
DGAUGE, bytes
opensearch_jvm_mem_pools_old_used_in_bytes
DGAUGE, bytes
opensearch_number_of_data_nodes
DGAUGE, count
opensearch_number_of_in_flight_fetch
DGAUGE, count
opensearch_number_of_nodes
DGAUGE, count
opensearch_number_of_pending_tasks
DGAUGE, count
opensearch_process_cpu_percent
DGAUGE, count
opensearch_process_cpu_total_in_millis
DGAUGE, milliseconds
opensearch_process_max_file_descriptors
DGAUGE, count
opensearch_process_mem_total_virtual_in_bytes
DGAUGE, bytes
opensearch_process_open_file_descriptors
DGAUGE, count
opensearch_process_timestamp
DGAUGE, timestamp
opensearch_task_max_waiting_in_queue_millis
DGAUGE, milliseconds
opensearch_thread_pool_<thread_pool_name>_active
DGAUGE, count
opensearch_thread_pool_<thread_pool_name>_completed
DGAUGE, count
opensearch_thread_pool_<thread_pool_name>_largest
DGAUGE, count
opensearch_thread_pool_<thread_pool_name>_queue
DGAUGE, count
opensearch_thread_pool_<thread_pool_name>_rejected
DGAUGE, count
opensearch_thread_pool_<thread_pool_name>_threads
DGAUGE, count
opensearch_transport_rx_count
DGAUGE, count
opensearch_transport_rx_size_in_bytes
DGAUGE, bytes
opensearch_transport_server_open
DGAUGE, count
opensearch_transport_total_outbound_connections
DGAUGE, count
opensearch_transport_tx_count
DGAUGE, count
opensearch_transport_tx_size_in_bytes
DGAUGE, bytes

Other metricsOther metrics

Name
Type, units
Description
opensearch_active_primary_shards
DGAUGE, count
Number of active primary shards and total active shards in the cluster
opensearch_active_shards
DGAUGE, count
Number of active shards
opensearch_active_shards_percent_as_number
DGAUGE, count
Percentage of active shards
opensearch_delayed_unassigned_shards
DGAUGE, count
Number of shards pending assignment
opensearch_initializing_shards
DGAUGE, count
Number of shards being initialized
opensearch_is_alive
DGAUGE, 0/1
Host health indicator.
It can be either 1 if a DB host is healthy or 0 if it is not.
opensearch_relocating_shards
DGAUGE, count
Number of shards being relocated
opensearch_status
DGAUGE, 0/1/2
Cluster health and technical condition:
0 (red): Cluster is unhealthy or partially functional. At least one of the primary shards is unavailable. If the cluster is responding to requests, search results in the responses may be incomplete.
1 (yellow): Cluster is healthy. One or more shard replicas are inaccessible. The search results in the cluster responses are complete, but if more shards become unavailable, the cluster performance will be disrupted.
2 (green): Cluster is completely healthy. All cluster shards are available.
opensearch_unassigned_shards
DGAUGE, count
Number of inactive shards with no host assigned
dashboards_is_alive
DGAUGE, 0/1
Host health indicator.
It can be either 1 if a DB host is healthy or 0 if it is not.
dashboards_metrics_requests_total
DGAUGE, count
Total cluster requests

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