Nov 10 14:00:02 host1 systemd[1]: Started Session 1123 of user root.
Nov 10 14:00:03 host1 kernel[0]: Initializing cgroup subsys cpuset
Nov 10 14:00:04 host1 kernel[0]: Initializing cgroup subsys cpu
Nov 10 14:00:04 host1 kernel[0]: Initializing cgroup subsys cpuacct
Nov 10 14:00:04 host1 kernel[0]: Linux version 4.19.90-23.8.v2101.ky10.aarch64 (gcc version 8.3.0) #1 SMP PREEMPT Tue Mar 9 10:23:45 CST 2025
Nov 10 14:00:05 host1 systemd[1]: Starting Start up configuration...
Nov 10 14:00:07 host1 systemd[1]: Started udev Kernel Device Manager.
Nov 10 14:00:09 host1 sshd[212]: Accepted password for user from 10.0.0.5 port 54321 ssh2
Nov 10 14:00:12 host1 nginx[102]: INFO: 192.168.1.23 - - [10/Nov/2025:14:00:12 +0800] "GET /api/status HTTP/1.1" 200 123 "-" "curl/7.68.0"
Nov 10 14:00:15 host1 mysqld[215]: 2025-11-10T14:00:15.123456Z 0 [Note] Event Scheduler: Loaded tables from the mysql.event table
Nov 10 14:00:18 host1 java[378]: INFO: Application startup completed in 5.342s
Nov 10 14:00:20 host1 prometheus-http[589]: INFO: Prometheus HTTP listener started on 0.0.0.0:9090
Nov 10 14:05:01 host1 kernel[0]: netlink: error in netlink_sendmsg (type=0)
Nov 10 14:05:03 host1 systemd[1]: Starting Daily apt download activities...
Nov 10 14:05:06 host1 apt[3021]: INFO: apt nightly update started.
Nov 10 14:05:07 host1 nginx[102]: INFO: 192.168.1.24 - - [10/Nov/2025:14:05:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:05:11 host1 mysqld[215]: 2025-11-10T14:05:11.000123Z 0 [Note] Event Scheduler: Executing event db_cleanuprun
Nov 10 14:05:14 host1 java[378]: DEBUG: GC (Allocation Failure) Pause Young (Normal) (G1 Evacuation Pause) 64M->32M(256M) 12.345ms
Nov 10 14:05:18 host1 prometheus-http[589]: INFO: Received scrape request from 10.0.0.30
Nov 10 14:05:20 host1 systemd[1]: Started Daily apt download activities.

Nov 10 14:10:01 host1 systemd[1]: Starting Rotate log files...
Nov 10 14:10:04 host1 logrotate[590]: INFO: rotating log /var/log/nginx/access.log, 5 files in backlog
Nov 10 14:10:07 host1 nginx[102]: INFO: 192.168.1.25 - - [10/Nov/2025:14:10:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 10 14:10:09 host1 mysqld[215]: 2025-11-10T14:10:09.432001Z 0 [Note] Event Scheduler: End of events
Nov 10 14:10:12 host1 java[378]: INFO: Scheduled task cleanup completed.
Nov 10 14:10:15 host1 prometheus-http[589]: INFO: Scrape completed, 120 samples collected.
Nov 10 14:10:18 host1 systemd[1]: Started Rotate log files.

Nov 10 14:15:01 host1 kernel[0]: EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null)
Nov 10 14:15:04 host1 systemd[1]: Starting Clean up temporary files...
Nov 10 14:15:07 host1 tmpwatch[613]: INFO: Removing file /tmp/tmpabcd1234 (age 1800s)
Nov 10 14:15:09 host1 nginx[102]: INFO: 192.168.1.26 - - [10/Nov/2025:14:15:09 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:15:12 host1 mysqld[215]: 2025-11-10T14:15:12.000456Z 0 [Note] Event Scheduler: Started
Nov 10 14:15:14 host1 java[378]: DEBUG: Refreshed JMX metrics.
Nov 10 14:15:18 host1 prometheus-http[589]: INFO: Serving metrics to 10.0.0.31

Nov 10 14:20:02 host1 systemd[1]: Starting Clean up unused Docker images...
Nov 10 14:20:05 host1 docker[720]: INFO: Deleted unused image sha256:abcdef1234567890
Nov 10 14:20:07 host1 nginx[102]: INFO: 192.168.1.27 - - [10/Nov/2025:14:20:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 10 14:20:09 host1 mysqld[215]: 2025-11-10T14:20:09.123789Z 0 [Note] FLUSH tables
Nov 10 14:20:12 host1 java[378]: INFO: Completed periodic configuration reload.
Nov 10 14:20:15 host1 prometheus-http[589]: INFO: Scrape from 10.0.0.32 successful.

Nov 10 14:25:01 host1 sshd[212]: Received disconnect from 10.0.0.5 port 54321:11: disconnected by user
Nov 10 14:25:03 host1 systemd[1]: Starting Updating package lists...
Nov 10 14:25:06 host1 apt[3030]: INFO: apt-get update started.
Nov 10 14:25:08 host1 nginx[102]: INFO: 192.168.1.28 - - [10/Nov/2025:14:25:08 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:25:11 host1 mysqld[215]: 2025-11-10T14:25:11.999999Z 0 [Note] Event Scheduler: End of events
Nov 10 14:25:13 host1 java[378]: DEBUG: GC (System.gc()) pauseyoung 4.2ms
Nov 10 14:25:16 host1 prometheus-http[589]: INFO: Scrape completed, 121 samples.

Nov 10 14:30:02 host1 systemd[1]: Starting Clean up stale NFS mounts...
Nov 10 14:30:04 host1 nfsd[851]: INFO: Unmounting /mnt/nfs_share
Nov 10 14:30:07 host1 nginx[102]: INFO: 192.168.1.29 - - [10/Nov/2025:14:30:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 10 14:30:09 host1 mysqld[215]: 2025-11-10T14:30:09.321000Z 0 [Note] Event Scheduler: Started
Nov 10 14:30:12 host1 java[378]: INFO: Running scheduled cleanup task.
Nov 10 14:30:15 host1 prometheus-http[589]: INFO: Serving metrics to 10.0.0.33

Nov 10 14:35:01 host1 systemd[1]: Starting Network Time Synchronization...
Nov 10 14:35:03 host1 chronyd[942]: INFO: ntp_server=pool.ntp.org, freq=0.0012
Nov 10 14:35:06 host1 nginx[102]: INFO: 192.168.1.30 - - [10/Nov/2025:14:35:06 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:35:09 host1 mysqld[215]: 2025-11-10T14:35:09.654321Z 0 [Note] Event Scheduler: End of events
Nov 10 14:35:12 host1 java[378]: DEBUG: JIT compilation for class com.example.Service took 12ms
Nov 10 14:35:15 host1 prometheus-http[589]: INFO: Scrape from 10.0.0.34 successful.

Nov 10 14:40:02 host1 systemd[1]: Starting Cleanup of orphaned cgroups...
Nov 10 14:40:04 host1 cgroupfs[703]: INFO: Removed cgroup /sys/fs/cgroup/memory/docker/abcdef
Nov 10 14:40:07 host1 nginx[102]: INFO: 192.168.1.31 - - [10/Nov/2025:14:40:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 10 14:40:09 host1 mysqld[215]: 2025-11-10T14:40:09.888888Z 0 [Note] Event Scheduler: Started
Nov 10 14:40:12 host1 java[378]: INFO: Refreshing configuration from /etc/app/config.yaml
Nov 10 14:40:15 host1 prometheus-http[589]: INFO: Serving metrics to 10.0.0.35

Nov 10 14:45:01 host1 systemd[1]: Starting Logrotate service...
Nov 10 14:45:04 host1 logrotate[591]: INFO: Rotating /var/log/syslog, 7 files in backlog
Nov 10 14:45:07 host1 nginx[102]: INFO: 192.168.1.32 - - [10/Nov/2025:14:45:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:45:09 host1 mysqld[215]: 2025-11-10T14:45:09.111111Z 0 [Note] Event Scheduler: End of events
Nov 10 14:45:12 host1 java[378]: DEBUG: ThreadPoolExecutor completed task
Nov 10 14:45:15 host1 prometheus-http[589]: INFO: Scrape completed, 119 samples.

Nov 10 14:50:02 host1 systemd[1]: Starting Housekeeping...
Nov 10 14:50:04 host1 udevd[101]: INFO: Processed 17 devices
Nov 10 14:50:07 host1 nginx[102]: INFO: 192.168.1.33 - - [10/Nov/2025:14:50:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 10 14:50:09 host1 mysqld[215]: 2025-11-10T14:50:09.222222Z 0 [Note] Event Scheduler: Started
Nov 10 14:50:12 host1 java[378]: INFO: Scheduled memory check passed.
Nov 10 14:50:15 host1 prometheus-http[589]: INFO: Serving metrics to 10.0.0.36

Nov 10 14:55:01 host1 systemd[1]: Starting Cleaning temporary files...
Nov 10 14:55:04 host1 tmpwatch[614]: INFO: Removing file /tmp/tmpxyz9876 (age 2000s)
Nov 10 14:55:07 host1 nginx[102]: INFO: 192.168.1.34 - - [10/Nov/2025:14:55:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 14:55:09 host1 mysqld[215]: 2025-11-10T14:55:09.333333Z 0 [Note] Event Scheduler: End of events
Nov 10 14:55:12 host1 java[378]: DEBUG: JIT compiled method com.example.Util.calculate
Nov 10 14:55:15 host1 prometheus-http[589]: INFO: Scrape completed, 118 samples.

Nov 10 15:00:02 host1 systemd[1]: Starting CPU anomaly detection service...
Nov 10 15:00:03 host1 cpu-anomaly[880]: WARN: High CPU usage detected on core 0 (88.2%)
Nov 10 15:00:04 host1 cpu-anomaly[880]: WARN: High CPU usage detected on core 1 (86.9%)
Nov 10 15:00:05 host1 cpu-anomaly[880]: WARN: High CPU usage detected on core 2 (87.6%)
Nov 10 15:00:06 host1 cpu-anomaly[880]: WARN: High CPU usage detected on core 3 (87.8%)
Nov 10 15:00:07 host1 prometheus-http[589]: ERROR: getProcessCpuLoad() returned 99.9%, entering protective mode.
Nov 10 15:00:08 host1 prometheus-http[589]: ERROR: Loop detected in native get_process_load() (next_line() endless)
Nov 10 15:00:09 host1 prometheus-http[589]: ERROR: Stack trace (most recent call first):
Nov 10 15:00:09 host1 prometheus-http[589]:   at com.sun.management.UnixOperatingSystem.getProcessCpuLoad(Native Method)
Nov 10 15:00:09 host1 prometheus-http[589]:   at com.sun.management.OperatingSystemMXBean.getProcessCpuLoad(OperatingSystemMXBean.java:102)
Nov 10 15:00:09 host1 prometheus-http[589]:   at com.example.CpuMonitor.run(CpuMonitor.java:45)
Nov 10 15:00:09 host1 prometheus-http[589]:   at java.lang.Thread.run(Thread.java:748)
Nov 10 15:00:10 host1 kernel[0]: WARNING: task prometheus-http (pid 589) blocked for more than 120 seconds.
Nov 10 15:00:11 host1 kernel[0]: INFO: task: prometheus-http state:D stack: 0xffffffc0012a0000
Nov 10 15:00:12 host1 kernel[0]: INFO: Memory: 8192K/16384K available, 8192K free
Nov 10 15:00:13 host1 kernel[0]: WARNING: OOM killer disabled for process pid 589
Nov 10 15:00:14 host1 nginx[102]: WARN: 192.168.1.35 - - [10/Nov/2025:15:00:14 +0800] "GET /metrics HTTP/1.1" 503 0 "-" "Prometheus/2.30.0"
Nov 10 15:00:15 host1 mysql[215]: WARN: Aborted connection 13245 to db: 'monitor' user: 'monitor' host: '10.0.0.20' (Got timeout reading communication packet)
Nov 10 15:00:16 host1 java[378]: WARN: Thread \"MetricsCollector\" stuck in getProcessCpuLoad, possible deadlock.
Nov 10 15:00:18 host1 systemd[1]: Starting Investigation of high CPU usage (prometheus-http)
Nov 10 15:01:02 host1 prometheus-http[589]: ERROR: CPU usage still at 99.9% after 1 minute, attempting graceful shutdown.
Nov 10 15:01:04 host1 kernel[0]: INFO: cpu0: 90.0% user, 5.0% system, 5.0% iowait
Nov 10 15:01:04 host1 kernel[0]: INFO: cpu1: 88.5% user, 5.2% system, 6.3% iowait
Nov 10 15:01:05 host1 kernel[0]: INFO: cpu2: 89.1% user, 5.1% system, 6.0% iowait
Nov 10 15:01:06 host1 kernel[0]: INFO: cpu3: 89.4% user, 5.3% system, 6.3% iowait
Nov 10 15:01:07 host1 prometheus-http[589]: ERROR: Unable to free resources, still consuming ~2 GB RSS.
Nov 10 15:01:09 host1 kernel[0]: WARNING: High I/O latency detected on device sda (avg 24ms)
Nov 10 15:01:11 host1 nginx[102]: WARN: 192.168.1.36 - - [10/Nov/2025:15:01:11 +0800] "GET /metrics HTTP/1.1" 504 0 "-" "Prometheus/2.30.0"
Nov 10 15:01:13 host1 mysql[215]: WARN: Query timeout for SELECT * FROM metrics WHERE ts > NOW() - INTERVAL 5 MINUTE
Nov 10 15:02:02 host1 prometheus-http[589]: ERROR: Loop still present after 2 minutes, forcing core dump.
Nov 10 15:02:03 host1 core-dump[900]: INFO: Core dump saved to /var/crash/prometheus-http-589.core
Nov 10 15:02:04 host1 kernel[0]: INFO: Completed core dump of process 589 (size 32 MB)
Nov 10 15:02:06 host1 prometheus-http[589]: CRITICAL: Process crashed due to fatal error.
Nov 10 15:02:08 host1 systemd[1]: Starting Restart of prometheus-http.service
Nov 10 15:02:10 host1 systemd[1]: Started prometheus-http.service (pid 1025)
Nov 10 15:02:12 host1 prometheus-http[1025]: INFO: New instance started, CPU usage at 0.0%
Nov 10 15:02:14 host1 kernel[0]: INFO: cpu0: 2.0% user, 0.1% system, 0.1% iowait
Nov 10 15:02:16 host1 nginx[102]: INFO: 192.168.1.37 - - [10/Nov/2025:15:02:16 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 10 15:03:01 host1 prometheus-http[1025]: INFO: Scrape request from 10.0.0.38, handling...
Nov 15:03:03 host1 kernel[0]: INFO: cpu0: 3.0% user, 0.2% system, 0.2% iowait
Nov 15:03:05 host1 kernel[0]: INFO: cpu1: 2.8% user, 0.3% system, 0.4% iowait
Nov 15:03:08 host1 kernel[0]: INFO: cpu2: 2.9% user, 0.2% system, 0.3% iowait
Nov 15:03:10 host1 kernel[0]: INFO: cpu3: 2.7% user, 0.3% system, 0.3% iowait
Nov 15:03:12 host1 prometheus-http[1025]: INFO: Scrape completed, 105 samples.
Nov 15:04:02 host1 prometheus-http[1025]: INFO: CPU usage 0.3%, normal.
Nov 15:04:05 host1 cpu-anomaly[880]: INFO: CPU usage back to normal thresholds.
Nov 15:04:08 host1 systemd[1]: Stopping CPU anomaly detection service.

Nov 15:05:01 host1 systemd[1]: Starting Logrotate service...
Nov 15:05:04 host1 logrotate[592]: INFO: Rotating /var/log/nginx/error.log, 4 files in backlog
Nov 15:05:07 host1 nginx[102]: INFO: 192.168.1.38 - - [10/Nov/2025:15:05:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 15:05:09 host1 mysqld[215]: 2025-11-10T15:05:09.444444Z 0 [Note] Event Scheduler: Started
Nov 15:05:12 host1 java[378]: INFO: Background tasks resumed.
Nov 15:05:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.39

Nov 15:10:02 host1 systemd[1]: Starting Clean up of orphaned Docker images...
Nov 15:10:04 host1 docker[721]: INFO: Deleted unused image sha256:deafbeef12345678
Nov 15:10:07 host1 nginx[102]: INFO: 192.168.1.39 - - [10/Nov/2025:15:10:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 15:10:09 host1 mysqld[215]: 2025-11-10T15:10:09.555555Z 0 [Note] Event Scheduler: End of events
Nov 15:10:12 host1 java[378]: DEBUG: GC (Allocation Failure) Pause Young (G1 Evacuation Pause) 70M->35M(256M) 13.2ms
Nov 15:10:15 host1 prometheus-http[1025]: INFO: Scrape completed, 106 samples.

Nov 15:15:01 host1 systemd[1]: Starting Housekeeping...
Nov 15:15:04 host1 udevd[102]: INFO: Processed 19 devices
Nov 15:15:07 host1 nginx[102]: INFO: 192.168.1.40 - - [10/Nov/2025:15:15:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 15:15:09 host1 mysqld[215]: 2025-11-10T15:15:09.666666Z 0 [Note] Event Scheduler: Started
Nov 15:15:12 host1 java[378]: INFO: Scheduled memory check passed.
Nov 15:15:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.40

Nov 15:20:01 host1 systemd[1]: Starting Clean up temporary files...
Nov 15:20:04 host1 tmpwatch[615]: INFO: Removing file /tmp/tmpghij5678 (age 2500s)
Nov 15:20:07 host1 nginx[102]: INFO: 192.168.1.41 - - [10/Nov/2025:15:20:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 15:20:09 host1 mysqld[215]: 2025-11-10T15:20:09.777777Z 0 [Note] Event Scheduler: End of events
Nov 15:20:12 host1 java[378]: DEBUG: JIT compiled method com.example.Service.handleRequest
Nov 15:20:15 host1 prometheus-http[1025]: INFO: Scrape completed, 107 samples.

Nov 15:25:01 host1 systemd[1]: Starting Logrotate service...
Nov 15:25:04 host1 logrotate[593]: INFO: Rotating /var/log/syslog, 6 files in backlog
Nov 15:25:07 host1 nginx[102]: INFO: 192.168.1.42 - - [10/Nov/2025:15:25:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 15:25:09 host1 mysqld[215]: 2025-11-10T15:25:09.888888Z 0 [Note] Event Scheduler: Started
Nov 15:25:12 host1 java[378]: INFO: Background task \"CacheCleaner\" finished successfully.
Nov 15:25:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.41

Nov 15:30:01 host1 systemd[1]: Starting Network Time Synchronization...
Nov 15:30:03 host1 chronyd[943]: INFO: ntp_server=pool.ntp.org, freq=0.0013
Nov 15:30:06 host1 nginx[102]: INFO: 192.168.1.43 - - [10/Nov/2025:15:30:06 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 15:30:09 host1 mysqld[215]: 2025-11-10T15:30:09.123123Z 0 [Note] Event Scheduler: End of events
Nov 15:30:12 host1 java[378]: DEBUG: GC (System.gc()) pauseyoung 5.1ms
Nov 15:30:15 host1 prometheus-http[1025]: INFO: Scrape completed, 108 samples.

Nov 15:35:01 host1 systemd[1]: Starting Clean up of orphaned cgroups...
Nov 15:35:04 host1 cgroupfs[704]: INFO: Removed cgroup /sys/fs/cgroup/cpu/docker/xyzabc
Nov 15:35:07 host1 nginx[102]: INFO: 192.168.1.44 - - [10/Nov/2025:15:35:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 15:35:09 host1 mysqld[215]: 2025-11-10T15:35:09.234234Z 0 [Note] Event Scheduler: Started
Nov 15:35:12 host1 java[378]: INFO: Scheduling next metrics export.
Nov 15:35:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.42

Nov 15:40:01 host1 systemd[1]: Starting Housekeeping...
Nov 15:40:04 host1 udevd[102]: INFO: Processed 21 devices
Nov 15:40:07 host1 nginx[102]: INFO: 192.168.1.45 - - [10/Nov/2025:15:40:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 15:40:09 host1 mysqld[215]: 2025-11-10T15:40:09.345345Z 0 [Note] Event Scheduler: End of events
Nov 15:40:12 host1 java[378]: DEBUG: JIT compiled method com.example.Monitor.checkLoad
Nov 15:40:15 host1 prometheus-http[1025]: INFO: Scrape completed, 109 samples.

Nov 15:45:01 host1 systemd[1]: Starting Logrotate service...
Nov 15:45:04 host1 logrotate[594]: INFO: Rotating /var/log/apache2/access.log, 3 files in backlog
Nov 15:45:07 host1 nginx[102]: INFO: 192.168.1.46 - - [10/Nov/2025:15:45:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 15:45:09 host1 mysqld[215]: 2025-11-10T15:45:09.456456Z 0 [Note] Event Scheduler: Started
Nov 15:45:12 host1 java[378]: INFO: Metrics export completed successfully.
Nov 15:45:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.43

Nov 15:50:01 host1 systemd[1]: Starting Network Time Synchronization...
Nov 15:50:03 host1 chronyd[944]: INFO: ntp_server=pool.ntp.org, freq=0.0014
Nov 15:50:06 host1 nginx[102]: INFO: 192.168.1.47 - - [10/Nov/2025:15:50:06 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 15:50:09 host1 mysqld[215]: 2025-11-10T15:50:09.567567Z 0 [Note] Event Scheduler: End of events
Nov 15:50:12 host1 java[378]: DEBUG: GC (Allocation Failure) Pause Young (G1 Evacuation Pause) 72M->36M(256M) 14.1ms
Nov 15:50:15 host1 prometheus-http[1025]: INFO: Scrape completed, 110 samples.

Nov 15:55:01 host1 systemd[1]: Starting Clean up temporary files...
Nov 15:55:04 host1 tmpwatch[616]: INFO: Removing file /tmp/tmpklmn9012 (age 3000s)
Nov 15:55:07 host1 nginx[102]: INFO: 192.168.1.48 - - [10/Nov/2025:15:55:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-“ "Kube-probe/1.20"
Nov 15:55:09 host1 mysqld[215]: 2025-11-10T15:55:09.678678Z 0 [Note] Event Scheduler: Started
Nov 15:55:12 host1 java[378]: INFO: Background maintenance task finished.
Nov 15:55:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.44

Nov 16:00:01 host1 systemd[1]: Starting Housekeeping...
Nov 16:00:04 host1 udevd[102]: INFO: Processed 23 devices
Nov 16:00:07 host1 nginx[102]: INFO: 192.168.1.49 - - [10/Nov/2025:16:00:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:00:09 host1 mysqld[215]: 2025-11-10T16:00:09.789789Z 0 [Note] Event Scheduler: End of events
Nov 16:00:12 host1 java[378]: DEBUG: JIT compiled method com.example.Util.calculateStats
Nov 16:00:15 host1 prometheus-http[1025]: INFO: Scrape completed, 111 samples.

Nov 16:05:01 host1 systemd[1]: Starting Logrotate service...
Nov 16:05:04 host1 logrotate[595]: INFO: Rotating /var/log/kern.log, 5 files in backlog
Nov 16:05:07 host1 nginx[102]: INFO: 192.168.1.50 - - [10/Nov/2025:16:05:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 16:05:09 host1 mysqld[215]: 2025-11-10T16:05:09.890890Z 0 [Note] Event Scheduler: Started
Nov 16:05:12 host1 java[378]: INFO: Metrics collection cycle completed.
Nov 16:05:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.45

Nov 16:10:01 host1 systemd[1]: Starting Clean up of orphaned Docker images...
Nov 16:10:04 host1 docker[722]: INFO: Deleted unused image sha256:beadfeed11223344
Nov 16:10:07 host1 nginx[102]: INFO: 192.168.1.51 - - [10/Nov/2025:16:10:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:10:09 host1 mysqld[215]: 2025-11-10T16:10:09.901901Z 0 [Note] Event Scheduler: End of events
Nov 16:10:12 host1 java[378]: DEBUG: GC (Allocation Failure) Pause Young (G1 Evacuation Pause) 75M->38M(256M) 15.0ms
Nov 16:10:15 host1 prometheus-http[1025]: INFO: Scrape completed, 112 samples.

Nov 16:15:01 host1 systemd[1]: Starting Housekeeping...
Nov 16:15:04 host1 udevd[102]: INFO: Processed 25 devices
Nov 16:15:07 host1 nginx[102]: INFO: 192.168.1.52 - - [10/Nov/2025:16:15:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 16:15:09 host1 mysqld[215]: 2025-11-10T16:15:09.012012Z 0 [Note] Event Scheduler: Started
Nov 16:15:12 host1 java[378]: INFO: Background task \"CacheRefresher\" finished.
Nov 16:15:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.46

Nov 16:20:01 host1 systemd[1]: Starting Logrotate service...
Nov 16:20:04 host1 logrotate[596]: INFO: Rotating /var/log/apache2/error.log, 2 files in backlog
Nov 16:20:07 host1 nginx[102]: INFO: 192.168.1.53 - - [10/Nov/2025:16:20:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:20:09 host1 mysqld[215]: 2025-11-10T16:20:09.123123Z 0 [Note] Event Scheduler: End of events
Nov 16:20:12 host1 java[378]: DEBUG: JIT compiled method com.example.Service.processRequest
Nov 16:20:15 host1 prometheus-http[1025]: INFO: Scrape completed, 113 samples.

Nov 16:25:01 host1 systemd[1]: Starting Clean up temporary files...
Nov 16:25:04 host1 tmpwatch[617]: INFO: Removing file /tmp/tmpopqr3456 (age 3500s)
Nov 16:25:07 host1 nginx[102]: INFO: 192.168.1.54 - - [10/Nov/2025:16:25:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" “Kube-probe/1.20”
Nov 16:25:09 host1 mysqld[215]: 2025-11-10T16:25:09.234234Z 0 [Note] Event Scheduler: Started
Nov 16:25:12 host1 java[378]: INFO: Metrics export cycle completed.
Nov 16:25:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.47

Nov 16:30:01 host1 systemd[1]: Starting Housekeeping...
Nov 16:30:04 host1 udevd[102]: INFO: Processed 27 devices
Nov 16:30:07 host1 nginx[102]: INFO: 192.168.1.55 - - [10/Nov/2025:16:30:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:30:09 host1 mysqld[215]: 2025-11-10T16:30:09.345345Z 0 [Note] Event Scheduler: End of events
Nov 16:30:12 host1 java[378]: DEBUG: GC (System.gc()) pauseyoung 5.4ms
Nov 16:30:15 host1 prometheus-http[1025]: INFO: Scrape completed, 114 samples.

Nov 16:35:01 host1 systemd[1]: Starting Logrotate service...
Nov 16:35:04 host1 logrotate[597]: INFO: Rotating /var/log/kern.log, 4 files in backlog
Nov 16:35:07 host1 nginx[102]: INFO: 192.168.1.56 - - [10/Nov/2025:16:35:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 16:35:09 host1 mysqld[215]: 2025-11-10T16:35:09.456456Z 0 [Note] Event Scheduler: Started
Nov 16:35:12 host1 java[378]: INFO: Background task \"DiskCleaner\" finished.
Nov 16:35:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.48

Nov 16:40:01 host1 systemd[1]: Starting Clean up of orphaned Docker images...
Nov 16:40:04 host1 docker[723]: INFO: Deleted unused image sha256:c0ffee1234567890
Nov 16:40:07 host1 nginx[102]: INFO: 192.168.1.57 - - [10/Nov/2025:16:40:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:40:09 host1 mysqld[215]: 2025-11-10T16:40:09.567567Z 0 [Note] Event Scheduler: End of events
Nov 16:40:12 host1 java[378]: DEBUG: JIT compiled method com.example.Util.computeDelta
Nov 16:40:15 host1 prometheus-http[1025]: INFO: Scrape completed, 115 samples.

Nov 16:45:01 host1 systemd[1]: Starting Housekeeping...
Nov 16:45:04 host1 udevd[102]: INFO: Processed 29 devices
Nov 16:45:07 host1 nginx[102]: INFO: 192.168.1.58 - - [10/Nov/2025:16:45:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 16:45:09 host1 mysqld[215]: 2025-11-10T16:45:09.678678Z 0 [Note] Event Scheduler: Started
Nov 16:45:12 host1 java[378]: INFO: Metrics export finished.
Nov 16:45:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.49

Nov 16:50:01 host1 systemd[1]: Starting Logrotate service...
Nov 16:50:04 host1 logrotate[598]: INFO: Rotating /var/log/nginx/error.log, 3 files in backlog
Nov 16:50:07 host1 nginx[102]: INFO: 192.168.1.59 - - [10/Nov/2025:16:50:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 16:50:09 host1 mysqld[215]: 2025-11-10T16:50:09.789789Z 0 [Note] Event Scheduler: End of events
Nov 16:50:12 host1 java[378]: DEBUG: GC (Allocation Failure) Pause Young (G1 Evacuation Pause) 78M->40M(256M) 16.0ms
Nov 16:50:15 host1 prometheus-http[1025]: INFO: Scrape completed, 116 samples.

Nov 16:55:01 host1 systemd[1]: Starting Clean up temporary files...
Nov 16:55:04 host1 tmpwatch[618]: INFO: Removing file /tmp/tmpstuv7890 (age 3800s)
Nov 16:55:07 host1 nginx[102]: INFO: 192.168.1.60 - - [10/Nov/2025:16:55:07 +0800] "GET /healthz HTTP/1.1" 200 41 "-" "Kube-probe/1.20"
Nov 16:55:09 host1 mysqld[215]: 2025-11-10T16:55:09.891891Z 0 [Note] Event Scheduler: Started
Nov 16:55:12 host1 java[378]: INFO: Background maintenance task completed.
Nov 16:55:15 host1 prometheus-http[1025]: INFO: Serving metrics to 10.0.0.50

Nov 17:00:01 host1 systemd[1]: Starting Housekeeping...
Nov 17:00:04 host1 udevd[102]: INFO: Processed 31 devices
Nov 17:00:07 host1 nginx[102]: INFO: 192.168.1.61 - - [10/Nov/2025:17:00:07 +0800] "GET /metrics HTTP/1.1" 200 567 "-" "Prometheus/2.30.0"
Nov 17:00:09 host1 mysqld[215]: 2025-11-10T17:00:09.901901Z 0 [Note] Event Scheduler: End of events
Nov 17:00:12 host1 java[378]: DEBUG: JIT compiled method com.example.Service.handleRequest
Nov 17:00:15 host1 prometheus-http[1025]: INFO: Scrape completed, 117 samples.
