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- Data Migration
- API Documentation
- FAQs
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- Contact Us
- Updates and Announcements
- Product Introduction
- Purchase guide
- Getting Started
- Operation Guide
- Configure Cluster
- Managing Cluster
- Managing Service
- Adding Components
- Restarting Service
- Resetting WebUI Password
- Software WebUI Entry
- Operation Guide for Access to WebUI over Private Network
- Service Monitoring
- Role Management
- Configuration Management
- Configuration Rollback
- Managing Configuration Groups
- YARN Job Query
- Impala Query Management
- YARN Resource Scheduling
- Service Operation
- HBase Table-Level Monitoring
- Component Health Status
- Component Configuration Sharing
- Managing Resources
- Monitoring and Alarming
- Cluster Overview
- Log Search
- Alarm Configurations
- Cluster Event
- Alarm Records
- Cluster Inspection
- Monitoring Metrics
- Node Monitoring Metrics
- HDFS Monitoring Metrics
- YARN Monitoring Metrics
- ZooKeeper Monitoring Metrics
- HBase Monitoring Metrics
- Hive Monitoring Metrics
- Spark Monitoring Metrics
- Presto Monitoring Metrics
- ClickHouse Monitoring Metrics
- Druid Monitoring Metrics
- Kudu Monitoring Metrics
- Alluxio Monitoring Metrics
- PrestoSQL Monitoring Metrics
- Impala Monitoring Metrics
- Ranger Monitoring Metrics
- COSRanger Monitoring Metrics
- Doris Monitoring Metrics
- Kylin Monitoring Metrics
- Zeppelin Monitoring Metrics
- Oozie Monitoring Metrics
- Storm Monitoring Metrics
- Livy Monitoring Metrics
- Kyuubi Monitoring Metrics
- EMR Development Guide
- Hadoop Development Guide
- HDFS Common Operations
- HDFS Federation Management Development Guide
- HDFS Federation Management
- Submitting MapReduce Tasks
- Automatically Adding Task Nodes Without Assigning ApplicationMasters
- YARN Task Queue Management
- Practices on YARN Label Scheduling
- Hadoop Best Practices
- Using API to Analyze Data in HDFS and COS
- Dumping YARN Job Logs to COS
- Spark Development Guide
- Hbase Development Guide
- Phoenix on Hbase Development Guide
- Hive Development Guide
- Presto Development Guide
- Sqoop Development Guide
- Hue Development Guide
- Oozie Development Guide
- Flume Development Guide
- Kerberos Development Guide
- Knox Development Guide
- Alluxio Development Guide
- Kylin Development Guide
- Livy Development Guide
- Kyuubi Development Guide
- Zeppelin Development Guide
- Hudi Development Guide
- Superset Development Guide
- Impala Development Guide
- ClickHouse Development Guide
- Druid Development Guide
- TensorFlow Development Guide
- Jupyter Development Guide
- Kudu Development Guide
- EMR Development Guide
- Ranger Development Guide
- Doris Development Guide
- Kafka Development Guide
- Iceberg Development Guide
- StarRocks Development Guide
- Hadoop Development Guide
- Data Migration
- API Documentation
- FAQs
- Service Level Agreement
- Contact Us
Node - CPU
| Title | Metric | Unit | Description |
|---|---|---|---|
| CPU utilization | idle | % | Percentage of CPU idle time |
| irq | % | Percentage of interrupts | |
| nice | % | Percentage of CPU utilization under nice priority | |
| steal | % | Percentage of wait time by virtual CPUs for physical CPUs | |
| softirq | % | Percentage of CPU soft interrupts | |
| guest | % | Percentage of time spent running virtual processors | |
| system | % | CPU utilization in kernel mode | |
| user | % | CPU utilization in user mode | |
| iowait | % | Percentage of CPU idleness due to process I/O waits | |
| Load | 1m | % | 1-minute load |
| 5m | % | 5-minute load | |
| 15m | % | 15-minute load | |
| Cores | cpu_count | - | Number of CPU cores |
Node - memory
| Title | Metric | Unit | Description |
|---|---|---|---|
| Memory utilization | MemTotal | GB | Total memory size |
| MemFree | GB | Total free memory size | |
| MemAvailable | GB | Total available memory size | |
| Buffers | GB | Total memory size used by buffers | |
| Cached | GB | Total memory size used by file cache | |
| SwapCached | GB | Total swap memory size by anonymous page writes | |
| SwapFree | GB | Total available swap size | |
| AnonPages | GB | Total unmapped memory size | |
| SwapTotal | GB | Total swap size | |
| Dirty | GB | Total memory size to write to disk | |
| Writeback | GB | Total memory size being written back to disk | |
| HardwareCorrupted | GB | Total unavailable memory size due to memory hardware failure | |
| Shmem | GB | Total shared memory size | |
| MemUsed | GB | Total used memory size | |
| Percentage of used memory | available_percent | % | Percentage of available memory size out of total memory |
| used_percent | % | Percentage of used memory size out of total memory |
Node - disk
| Title | Metric | Unit | Description |
|---|---|---|---|
| Device read/write rate | Read | MB/s | Data read per second |
| Write | MB/s | Data written per second | |
| Device IOPS | all | count/s | Number of I/O operations in progress on current device |
| I/O operation time | Read | ms | Average wait time per device I/O read operation |
| Write | ms | Average wait time per device I/O write operation | |
| IO | ms | Average processing time per I/O request | |
| Device read/write QPS | Read | count/s | Read QPS |
| Write | count/s | Write QPS | |
| Merge-Read | count/s | Merged read QPS | |
| Merge-Write | count/s | Merged write QPS | |
| I/O device utilization | all | % | Disk busyness |
| Disk space | Free | GB | Free disk storage space |
| Available | GB | Available disk storage space (for unprivileged users) | |
| Total | GB | Total disk storage space | |
| Disk space utilization | Used | % | Disk space utilization |
| INODES | Free | - | Number of remaining disk inodes |
| Total | - | Total number of disk inodes | |
| Inode utilization | Used | % | Disk inode utilization |
Node - file handle
| Title | Metric | Unit | Description |
|---|---|---|---|
| File handle | allocated | - | Number of allocated file handles |
| maximum | - | Maximum number of file handles | |
| System interrupt | intr_total | count/s | Number of system interrupts |
| System context switch | context_switches_total | count/s | Number of system context switches |
| System process | forks_total | - | Number of new system processes |
| procs_running | - | Number of running system processes | |
| procs_blocked | - | Number of blocked system processes | |
| procs_total | - | Total number of system processes | |
| thrds_total | - | Total number of system threads | |
| Agent version | AgentVersionl | version | Agent version |
| Title | Metric | Unit | Description |
|---|---|---|---|
| TCP LISTEN exception | ListenDrops | count/s | Number of incoming connections (SYN packets) dropped for any reason |
| ListenOverflows | count/s | Number of occurrences where the upper limit of the Accept queue is exceeded after the last step of three-way handshake is completed | |
| TCPSyncookies | SyncookiesFailed | count/s | Number of packets received with invalid SYN Cookie information |
| SyncookiesRecv | count/s | Number of packets received with valid SYN Cookie information | |
| SyncookiesSent | count/s | Number of SYN/ACK packets sent through SYN Cookie | |
| TCP connection abort exception | TCPAbortOnTimeout | count/s | Number of connections closed because the attempts of retransmissions of various timers (RTO/PTO/keepalive) exceed the upper limit |
| TCPAbortOnData | count/s | Number of sockets closed due to unknown data received | |
| TCPAbortOnClose | count/s | Number of sockets closed when the user-mode program has data in the buffer | |
| TCPAbortOnMemory | count/s | Number of connections closed due to memory issues | |
| TCPAbortOnLinger | count/s | Number of connections suspended in lingering status after being closed | |
| TCPAbortFailed | count/s | Number of failed attempts to close connection | |
| TCP connection establishment | ActiveOpens | count/s | Number of actively established TCP connections |
| CurrEstab | count/s | Number of TCP connections currently established | |
| PassiveOpens | count/s | Number of passively established TCP connections | |
| AttemptFails | count/s | Number of connection establishment failures | |
| EstabResets | count/s | Number of reset connections | |
| TCP packet | InSegs | count/s | Number of received packets, including erroneous ones |
| OutSegs | count/s | Number of sent packets | |
| RetransSegs | count/s | Number of received TCP packets | |
| InErrs | count/s | Number of retransmitted packets | |
| OutRsts | count/s | Number of sent RST packets | |
| TCP retransmission rate | RetransSegsRate | % | Retransmission rate at TCP layer |
| ResetRate | % | RESET sending frequency | |
| InErrRate | % | Percentage of erroneous packets | |
| TCP TIME-WAIT | TW | count/s | Number of sockets ending TIME_WAIT status after normal timeout |
| TWKilled | count/s | Number of sockets ending TIME_WAIT status through tcp_tw_recycle mechanism | |
| TCPTimeWaitOverflow | count/s | Number of TIME_WAIT sockets unable to be allocated due to limit exceeding | |
| TWRecycled | count/s | Number of sockets ending TIME_WAIT status through tcp_tw_reuse mechanism | |
| TCP RTO | TCPTimeouts | count/s | Number of first RTO timer timeouts |
| TCPSpuriousRTOs | count/s | Number of spurious timeouts detected through F-RTO mechanism | |
| TCPLossProbes | count/s | Number of Tail Loss Probe (TLP) packets sent due to Probe Timeout (PTO) | |
| TCPLossProbeRecovery | count/s | Number of lost packets just repaired by TLP probes | |
| TCPRenoRecoveryFail | count/s | Number of connections that enter the Recovery phase and then undergo RTO (SACK option not supported by the opposite) | |
| TCPSackRecoveryFail | count/s | Number of connections that enter the Recovery phase and then undergo RTO (SACK option supported by the opposite) | |
| TCPRenoFailures | count/s | Number of failures that enter the TCP_CA_Disorder phase and then undergo RTO (SACK option not supported by the opposite) | |
| TCPSackFailures | count/s | Number of failures that enter the TCP_CA_Disorder phase and then undergo RTO (SACK option supported by the opposite) | |
| TCPLossFailures | count/s | Number of connections that enter the TCP_CA_Loss phase and then undergo RTO timeout | |
| TCP RTO constant | RtoAlgorithm | 1/s | Number of delayed algorithms for forwarding unanswered objects |
| RtoMax | 1 | Maximum number of retransmissions due to TCP latency | |
| RtoMin | 1 | Minimum number of retransmissions due to TCP latency | |
| TCP retransmission | TCPLostRetransmit | count/s | Number of SKB retransmissions due to loss |
| TCPFastRetrans | count/s | Number of fast SKB retransmissions | |
| TCPForwardRetrans | count/s | Number of regular SKB retransmissions | |
| TCPSlowStartRetrans | count/s | Number of SKB retransmissions with successful slow start | |
| TCPRetransFail | count/s | Number of failed retransmission attempts | |
| UDP datagram | OutDatagrams | count/s | Number of sent UDP datagrams |
| InDatagrams | count/s | Number of received UDP datagrams | |
| ENI data receiving/sending rate | eth0-receive_bytes | MB/s | Volume of data received by ENI |
| eth0-transmit_bytes | MB/s | Volume of data sent by ENI | |
| ENI packet receiving/sending rate | eth0-receive_drop | count/s | Volume of data received and then dropped by ENI |
| eth0-receive_errs | count/s | Volume of data failed to be received by ENI | |
| eth0-transmit_drop | count/s | Volume of data sent and then dropped by ENI | |
| eth0-transmit_errs | count/s | Volume of data failed to be sent by ENI | |
| eth0-transmit_packetsl | count/s | Number of packets sent by ENI | |
| TCP socket | TCP_inuse | - | Number of TCP sockets in use (listening) |
| TCP_orphan | - | Number of TCP connections waiting to be closed | |
| TCP_tw | - | Number of TCP sockets to be terminated | |
| TCP_alloc | - | Number of TCP sockets allocated (established, sk_buff obtained) | |
| sockets_used | - | Total number of used sockets | |
| TCP connection status | ESTABLISHED | - | Number of TCP connections in Established status |
| SYN-SENT | - | Number of TCP connections in SYN-SENT status | |
| SYN-RECV | - | Number of TCP connections in SYN-RECV status | |
| FIN-WAIT1 | - | Number of TCP connections in FIN-WAIT1 status | |
| FIN-WAIT2 | - | Number of TCP connections in FIN-WAIT2 status | |
| TIME-WAIT | - | Number of TCP connections in TIME-WAIT status | |
| CLOSE | - | Number of TCP connections in CLOSE status | |
| CLOSE-WAIT | - | Number of TCP connections in CLOSE-WAIT status | |
| LAST-ACK | - | Number of TCP connections in LAST-ACK status | |
| LISTEN | - | Number of TCP connections in LISTEN status | |
| CLOSEING | - | Number of TCP connections in CLOSEING status |
Node - event
| Title | Metric | Unit | Description |
|---|---|---|---|
| CPU utilization | used | % | 1 - (percentage of CPU idle time) |
| 15-minute CPU load | 15m | - | 15-minute load |
| 1-minute CPU load | 1m | - | 1-minute load |
| 5-minute CPU load | 5m | - | 5-minute load |
| Disk IOPS | all | - | Number of I/O operations in progress on current device |
| Disk I/O operation time | IO | - | Average processing time per I/O request |
| Disk space utilization | Used | - | Disk space utilization |
| Disk I/O device utilization | all | - | Disk busyness |
| Memory utilization | used_percent | - | Percentage of used memory size out of total memory |
| Outbound network traffic rate | *-transmit_bytes | - | Volume of data sent by ENI |
| Inbound network traffic rate | *-receive_bytes | - | Volume of data received by ENI |
| TCP connections | CurrEstab | - | Number of TCP connections currently established |
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