From 159df116c85ea0cca64dd1c95b4d1c44e19e0cc5 Mon Sep 17 00:00:00 2001
From: Patryk Hegenberg <hegenberg@tixeltec.com>
Date: Mon, 15 Sep 2025 08:25:20 +0200
Subject: [PATCH] feat(system-metrics,service-metrics,elastic): update
 elastic-client to version 8, improve parser logic to add more information,
 improve system monitor to add more information

---
 config.go                 |  27 ++--
 elasticsearch.go          |   2 +-
 elasticsearch_exporter.go |   2 +-
 go.mod                    |  10 +-
 go.sum                    |  21 ++-
 log_processor.go          |   2 +-
 models.go                 | 108 ++++++++++---
 service_monitor.go        | 280 ++++++++++++++++-----------------
 system_metrics.go         | 323 +++++++++++++++++++++++++++++++++++++-
 web_service.go            |   2 +-
 10 files changed, 587 insertions(+), 190 deletions(-)

diff --git a/config.go b/config.go
index a851929..e1b449e 100644
--- a/config.go
+++ b/config.go
@@ -44,15 +44,24 @@ type ElasticsearchConfig struct {
 }
 
 type SystemMetrics struct {
-	Enabled           bool     `mapstructure:"enabled"`
-	CollectCPU        bool     `mapstructure:"collect_cpu"`
-	CollectMemory     bool     `mapstructure:"collect_memory"`
-	CollectDisk       bool     `mapstructure:"collect_disk"`
-	CollectNetwork    bool     `mapstructure:"collect_network"`
-	CollectProcesses  bool     `mapstructure:"collect_processes"`
-	DiskPaths         []string `mapstructure:"disk_paths"`
-	NetworkInterfaces []string `mapstructure:"network_interfaces"`
-	TopProcessesLimit int      `mapstructure:"top_processes_limit"`
+	Enabled                   bool     `mapstructure:"enabled"`
+	CollectCPU                bool     `mapstructure:"collect_cpu"`
+	CollectMemory             bool     `mapstructure:"collect_memory"`
+	CollectDisk               bool     `mapstructure:"collect_disk"`
+	CollectNetwork            bool     `mapstructure:"collect_network"`
+	CollectProcesses          bool     `mapstructure:"collect_processes"`
+	DiskPaths                 []string `mapstructure:"disk_paths"`
+	NetworkInterfaces         []string `mapstructure:"network_interfaces"`
+	TopProcessesLimit         int      `mapstructure:"top_processes_limit"`
+	CollectNetworkConnections bool     `mapstructure:"collect_network_connections"`
+	CollectLoadAverage        bool     `mapstructure:"collect_load_average"`
+	CollectTCPStats           bool     `mapstructure:"collect_tcp_stats"`
+	CollectFileHandles        bool     `mapstructure:"collect_filehandles"`
+	CollectDiskIO             bool     `mapstructure:"collect_disk_io"`
+	CollectNetworkLatency     bool     `mapstructure:"collect_network_latency"`
+	CollectBandwidthUsage     bool     `mapstructure:"collect_bandwidth_usage"`
+	TransferPorts             []int    `mapstructure:"transfer_ports"`
+	LatencyTestHosts          []string `mapstructure:"latency_test_hosts"`
 }
 
 type Config struct {
diff --git a/elasticsearch.go b/elasticsearch.go
index 9bc8ecd..1d1be2c 100644
--- a/elasticsearch.go
+++ b/elasticsearch.go
@@ -8,7 +8,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/elastic/go-elasticsearch/v7"
+	"github.com/elastic/go-elasticsearch/v8"
 )
 
 func NewElasticsearchClient(config ElasticsearchConfig) (*elasticsearch.Client, error) {
diff --git a/elasticsearch_exporter.go b/elasticsearch_exporter.go
index d1f003b..b079724 100644
--- a/elasticsearch_exporter.go
+++ b/elasticsearch_exporter.go
@@ -9,7 +9,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/elastic/go-elasticsearch/v7"
+	"github.com/elastic/go-elasticsearch/v8"
 )
 
 type ElasticsearchExporter struct {
diff --git a/go.mod b/go.mod
index c0e658a..fb0d12c 100644
--- a/go.mod
+++ b/go.mod
@@ -3,14 +3,18 @@ module tixel_watch
 go 1.24.1
 
 require (
-	github.com/elastic/go-elasticsearch/v7 v7.17.10
+	github.com/elastic/go-elasticsearch/v8 v8.19.0
 	github.com/hpcloud/tail v1.0.0
 	github.com/shirou/gopsutil v3.21.11+incompatible
 	github.com/spf13/viper v1.20.1
+	golang.org/x/sys v0.31.0
 )
 
 require (
+	github.com/elastic/elastic-transport-go/v8 v8.7.0 // indirect
 	github.com/fsnotify/fsnotify v1.8.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
@@ -23,9 +27,11 @@ require (
 	github.com/tklauser/go-sysconf v0.3.15 // indirect
 	github.com/tklauser/numcpus v0.10.0 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	go.opentelemetry.io/otel v1.29.0 // indirect
+	go.opentelemetry.io/otel/metric v1.29.0 // indirect
+	go.opentelemetry.io/otel/trace v1.29.0 // indirect
 	go.uber.org/atomic v1.9.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/sys v0.31.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 	gopkg.in/fsnotify.v1 v1.4.7 // indirect
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
diff --git a/go.sum b/go.sum
index a57c825..9aa28be 100644
--- a/go.sum
+++ b/go.sum
@@ -1,18 +1,27 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/elastic/go-elasticsearch/v7 v7.17.10 h1:TCQ8i4PmIJuBunvBS6bwT2ybzVFxxUhhltAs3Gyu1yo=
-github.com/elastic/go-elasticsearch/v7 v7.17.10/go.mod h1:OJ4wdbtDNk5g503kvlHLyErCgQwwzmDtaFC4XyOxXA4=
+github.com/elastic/elastic-transport-go/v8 v8.7.0 h1:OgTneVuXP2uip4BA658Xi6Hfw+PeIOod2rY3GVMGoVE=
+github.com/elastic/elastic-transport-go/v8 v8.7.0/go.mod h1:YLHer5cj0csTzNFXoNQ8qhtGY1GTvSqPnKWKaqQE3Hk=
+github.com/elastic/go-elasticsearch/v8 v8.19.0 h1:VmfBLNRORY7RZL+9hTxBD97ehl9H8Nxf2QigDh6HuMU=
+github.com/elastic/go-elasticsearch/v8 v8.19.0/go.mod h1:F3j9e+BubmKvzvLjNui/1++nJuJxbkhHefbaT0kFKGY=
 github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
 github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-viper/mapstructure/v2 v2.2.1 h1:ZAaOCxANMuZx5RCeg0mBdEZk7DZasvvZIxtHqx8aGss=
 github.com/go-viper/mapstructure/v2 v2.2.1/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -51,6 +60,14 @@ github.com/tklauser/numcpus v0.10.0 h1:18njr6LDBk1zuna922MgdjQuJFjrdppsZG60sHGfj
 github.com/tklauser/numcpus v0.10.0/go.mod h1:BiTKazU708GQTYF4mB+cmlpT2Is1gLk7XVuEeem8LsQ=
 github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
 github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
+go.opentelemetry.io/otel v1.29.0 h1:PdomN/Al4q/lN6iBJEN3AwPvUiHPMlt93c8bqTG5Llw=
+go.opentelemetry.io/otel v1.29.0/go.mod h1:N/WtXPs1CNCUEx+Agz5uouwCba+i+bJGFicT8SR4NP8=
+go.opentelemetry.io/otel/metric v1.29.0 h1:vPf/HFWTNkPu1aYeIsc98l4ktOQaL6LeSoeV2g+8YLc=
+go.opentelemetry.io/otel/metric v1.29.0/go.mod h1:auu/QWieFVWx+DmQOUMgj0F8LHWdgalxXqvp7BII/W8=
+go.opentelemetry.io/otel/sdk v1.29.0 h1:vkqKjk7gwhS8VaWb0POZKmIEDimRCMsopNYnriHyryo=
+go.opentelemetry.io/otel/sdk v1.29.0/go.mod h1:pM8Dx5WKnvxLCb+8lG1PRNIDxu9g9b9g59Qr7hfAAok=
+go.opentelemetry.io/otel/trace v1.29.0 h1:J/8ZNK4XgR7a21DZUAsbF8pZ5Jcw1VhACmnYt39JTi4=
+go.opentelemetry.io/otel/trace v1.29.0/go.mod h1:eHl3w0sp3paPkYstJOmAimxhiFXPg+MMTlEh3nsQgWQ=
 go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI=
diff --git a/log_processor.go b/log_processor.go
index 07248a3..27b2e57 100644
--- a/log_processor.go
+++ b/log_processor.go
@@ -5,7 +5,7 @@ import (
 	"log/slog"
 	"time"
 
-	"github.com/elastic/go-elasticsearch/v7"
+	"github.com/elastic/go-elasticsearch/v8"
 )
 
 type LogProcessor struct {
diff --git a/models.go b/models.go
index f1adf9f..6138d3b 100644
--- a/models.go
+++ b/models.go
@@ -5,19 +5,88 @@ import (
 )
 
 type SystemResources struct {
-	Timestamp           time.Time              `json:"@timestamp"`
-	Type                string                 `json:"type"`
-	Host                string                 `json:"host"`
-	CPUPercent          float64                `json:"cpu_percent,omitempty"`
-	MemoryUsed          uint64                 `json:"memory_used,omitempty"`
-	MemoryTotal         uint64                 `json:"memory_total,omitempty"`
-	MemoryPercent       float64                `json:"memory_percent,omitempty"`
-	DiskUsage           map[string]DiskUsage   `json:"disk_usage,omitempty"`
-	NetworkStats        map[string]NetworkStat `json:"network_stats,omitempty"`
-	LoadAverage         []float64              `json:"load_average,omitempty"`
-	Uptime              uint64                 `json:"uptime,omitempty"`
-	TopProcesses        []ProcessInfo          `json:"top_processes"`
-	OpenFileDescriptors int32                  `json:"open_file_descriptors"`
+	Timestamp            time.Time                `json:"@timestamp"`
+	Type                 string                   `json:"type"`
+	Host                 string                   `json:"host"`
+	CPUPercent           float64                  `json:"cpu_percent,omitempty"`
+	MemoryUsed           uint64                   `json:"memory_used,omitempty"`
+	MemoryTotal          uint64                   `json:"memory_total,omitempty"`
+	MemoryPercent        float64                  `json:"memory_percent,omitempty"`
+	DiskUsage            map[string]DiskUsage     `json:"disk_usage,omitempty"`
+	NetworkStats         map[string]NetworkStat   `json:"network_stats,omitempty"`
+	LoadAverage          []float64                `json:"load_average,omitempty"`
+	Uptime               uint64                   `json:"uptime,omitempty"`
+	TopProcesses         []ProcessInfo            `json:"top_processes"`
+	OpenFileDescriptors  int32                    `json:"open_file_descriptors"`
+	DiskIOStats          map[string]DiskIOStat    `json:"disk_io_stats,omitempty"`
+	NetworkLatency       map[string]LatencyInfo   `json:"network_latency,omitempty"`
+	BandwidthUtilization map[string]BandwidthInfo `json:"bandwidth_utilization,omitempty"`
+	NetworkConnections   ConnectionStats          `json:"network_connections"`
+	TCPStats             TCPStatistics            `json:"tcp_stats"`
+	SystemLimits         SystemLimitInfo          `json:"system_limits"`
+}
+
+type DiskIOStat struct {
+	ReadBytes       uint64  `json:"read_bytes"`
+	WriteBytes      uint64  `json:"write_bytes"`
+	ReadOps         uint64  `json:"read_ops"`
+	WriteOps        uint64  `json:"write_ops"`
+	ReadTime        uint64  `json:"read_time"`
+	WriteTime       uint64  `json:"write_time"`
+	IOUtilization   float64 `json:"io_utilization"`
+	AvgReadLatency  float64 `json:"avg_read_latency"`
+	AvgWriteLatency float64 `json:"avg_write_latency"`
+}
+
+type LatencyInfo struct {
+	Host       string        `json:"host"`
+	MinLatency time.Duration `json:"min_latency"`
+	MaxLatency time.Duration `json:"max_latency"`
+	AvgLatency time.Duration `json:"avg_latency"`
+	PacketLoss float64       `json:"packet_loss"`
+	Jitter     time.Duration `json:"jitter"`
+}
+
+type BandwidthInfo struct {
+	Interface            string  `json:"interface"`
+	CurrentThroughputIn  float64 `json:"current_throughput_in_mbps"`
+	CurrentThroughputOut float64 `json:"current_throughput_out_mbps"`
+	PeakThroughputIn     float64 `json:"peak_throughput_in_mbps"`
+	PeakThroughputOut    float64 `json:"peak_throughput_out_mbps"`
+	UtilizationPercent   float64 `json:"utilization_percent"`
+}
+
+type ConnectionStats struct {
+	TotalConnections    int32            `json:"total_connections"`
+	EstablishedTCP      int32            `json:"established_tcp"`
+	ListeningTCP        int32            `json:"listening_tcp"`
+	TimeWaitTCP         int32            `json:"time_wait_tcp"`
+	TransferConnections int32            `json:"transfer_connections"`
+	ConnectionsByState  map[string]int32 `json:"connections_by_state"`
+}
+
+type LoadAverageInfo struct {
+	Load1  float64 `json:"load_1min"`
+	Load5  float64 `json:"load_5min"`
+	Load15 float64 `json:"load_15min"`
+}
+
+type TCPStatistics struct {
+	RetransmitRate    float64 `json:"retransmit_rate"`
+	OutOfOrderPackets uint64  `json:"out_of_order_packets"`
+	LostPackets       uint64  `json:"lost_packets"`
+	CongestionWindow  uint64  `json:"congestion_window"`
+	TCPMemoryUsage    uint64  `json:"tcp_memory_usage"`
+}
+
+type SystemLimitInfo struct {
+	MaxOpenFiles          uint64  `json:"max_open_files"`
+	CurrentOpenFiles      uint64  `json:"current_open_files"`
+	MaxProcesses          uint64  `json:"max_processes"`
+	CurrentProcesses      uint64  `json:"current_processes"`
+	MaxTCPConnections     uint64  `json:"max_tcp_connections"`
+	CurrentTCPConnections uint64  `json:"current_tcp_connections"`
+	FileDescriptorUsage   float64 `json:"file_descriptor_usage_percent"`
 }
 
 type DiskUsage struct {
@@ -70,10 +139,13 @@ func NewLogEntry(entryType string) LogEntry {
 
 func NewSystemResources() SystemResources {
 	return SystemResources{
-		Timestamp:    time.Now(),
-		Type:         "system_metrics",
-		Host:         hostname,
-		DiskUsage:    make(map[string]DiskUsage),
-		NetworkStats: make(map[string]NetworkStat),
+		Timestamp:            time.Now(),
+		Type:                 "system_metrics",
+		Host:                 hostname,
+		DiskUsage:            make(map[string]DiskUsage),
+		DiskIOStats:          make(map[string]DiskIOStat),
+		NetworkStats:         make(map[string]NetworkStat),
+		NetworkLatency:       make(map[string]LatencyInfo),
+		BandwidthUtilization: make(map[string]BandwidthInfo),
 	}
 }
diff --git a/service_monitor.go b/service_monitor.go
index 1279790..120496a 100644
--- a/service_monitor.go
+++ b/service_monitor.go
@@ -226,13 +226,19 @@ var (
 	tjmTransferNamePattern = regexp.MustCompile(`^(\d{8}T\d{6}-[A-Za-z0-9]+-[A-Za-z]+-(?:in|out)) ?: (.*)$`)
 	tsServicePattern       = regexp.MustCompile(`^(?<level>\S+)\s+(?<time>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{6})\s+(?<message>.*)`)
 	tsTransferIDPattern    = regexp.MustCompile(`^(?<transfer>\w{8}-\w{4}-\w{4}-\w{4}-\w{12})\s+(?<message>.*)`)
+	tjmTransferIDPattern1  = regexp.MustCompile(`(?P<transfer>\w{8}-\w{4}-\w{4}-\w{4}-\w{12}).*?(?P<message>.*)`)
+	tjmTransferIDPattern2  = regexp.MustCompile(`(?P<before>.*)(?P<transfer>\w{8}-\w{4}-\w{4}-\w{4}-\w{12}).*?(?P<message>.*)`)
+	tsDetailPattern1       = regexp.MustCompile(`in: Transfer start (?P<thread>\d+/\d+) buffers=(?P<buffers>\d+) files=(?P<files>\d+) size=(?P<size>[0-9.]+) MByte chunksize=(?P<chunksize>\d+) streams=(?P<streams>\d+) target-datarate=(?P<target_datarate>[0-9.]+) MByte/s protocol=(?P<protocol>\w+) dest=(?P<dest>\S+) sender-id=(?P<sender_id>\S+)`)
+	tsDetailPattern2       = regexp.MustCompile(`out: Start remote transfer to (?P<target>[^\s]+) request executed, duration=(?P<duration>[0-9.]+) s`)
+	tsDetailPattern3       = regexp.MustCompile(`out: Transfer start (?P<thread>\d+/\d+) buffers=(?P<buffers>\d+) files=(?P<files>\d+) size=(?P<size>[0-9.]+) MByte chunksize=(?P<chunksize>\d+) streams=(?P<streams>\d+) target-datarate=(?P<target_datarate>[0-9.]+) MByte/s protocol=(?P<protocol>\w+) src=(?P<src>\S+) receiver=(?P<receiver>\S+)`)
+	tsDetailPattern4       = regexp.MustCompile(`out: Start transfer (?P<thread>\d+/\d+), src=(?P<src>[^ ]*) dest=(?P<dest>[^ ]*) item\[0\]=(?P<item0>[^ ]*) count=(?P<count>\d+)`)
 	nginxAccessPattern     = regexp.MustCompile(`^(\S+)\s+\S+\s+(\S+)\s+\[([^\]]+)\]\s+"([^"]+)"\s+(\d+)\s+(\d+|-)\s*(?:"([^"]*)"\s+"([^"]*)")?`)
-	tjmInnerLogPattern     = regexp.MustCompile(`^(?P<transfername>[^ ]+) : (?P<javaclass>\w+)\.(?P<methode>\w+): started transfer session (?P<transferid>[a-f0-9\-]+) on (?P<localaddr>[\d\.]+:\d+) with target address (?P<targetaddr>[a-zA-Z0-9\.\-]+:\d+)`)
 )
 
 func parseTixstreamService(entry LogEntry) LogEntry {
 	newEntry := entry
 	fields := make(map[string]any)
+
 	matches := tsServicePattern.FindStringSubmatch(newEntry.Message)
 	if len(matches) > 0 {
 		timestamp := strings.Join(strings.Split(matches[2], " "), "T")
@@ -243,8 +249,9 @@ func parseTixstreamService(entry LogEntry) LogEntry {
 		fields["log_message"] = newEntry.Message
 	}
 	trNameMatch := tsTransferIDPattern.FindStringSubmatch(fields["log_message"].(string))
+	var transferID string
 	if len(trNameMatch) > 0 {
-		fields["transfer_id"] = trNameMatch[1]
+		transferID = trNameMatch[1]
 		fields["log_message"] = trNameMatch[2]
 		split := strings.Fields(trNameMatch[2])
 		switch split[0] {
@@ -261,53 +268,81 @@ func parseTixstreamService(entry LogEntry) LogEntry {
 	if len(parts) < 5 {
 		return newEntry
 	}
-
+	tsDetail := tsDetailPattern1.FindStringSubmatch(fields["log_message"].(string))
+	if len(tsDetail) > 0 {
+		threadInt, _ := strconv.Atoi(strings.Split(tsDetail[1], "/")[0])
+		fields["thread"] = threadInt
+		buffersInt, _ := strconv.Atoi(tsDetail[2])
+		fields["buffers"] = buffersInt
+		fileCountInt, _ := strconv.Atoi(tsDetail[3])
+		fields["file_count"] = fileCountInt
+		fileSizeInt, _ := strconv.Atoi(tsDetail[4])
+		fields["file_size"] = fileSizeInt
+		chunkSizeInt, _ := strconv.Atoi(tsDetail[5])
+		fields["chunksize"] = chunkSizeInt
+		streamsInt, _ := strconv.Atoi(tsDetail[6])
+		fields["streams"] = streamsInt
+		datarateFloat, _ := strconv.ParseFloat(tsDetail[7], 64)
+		fields["target_datarate"] = datarateFloat
+		fields["protocoll"] = tsDetail[8]
+		fields["destination"] = tsDetail[9]
+		fields["sender_id"] = tsDetail[10]
+	}
+	tsDetail = tsDetailPattern2.FindStringSubmatch(fields["log_message"].(string))
+	if len(tsDetail) > 0 {
+		fields["transfer_target"] = tsDetail[1]
+	}
+	tsDetail = tsDetailPattern3.FindStringSubmatch(fields["log_message"].(string))
+	if len(tsDetail) > 0 {
+		threadInt, _ := strconv.Atoi(strings.Split(tsDetail[1], "/")[0])
+		fields["thread"] = threadInt
+		buffersInt, _ := strconv.Atoi(tsDetail[2])
+		fields["buffers"] = buffersInt
+		fileCountInt, _ := strconv.Atoi(tsDetail[3])
+		fields["file_count"] = fileCountInt
+		fileSizeInt, _ := strconv.Atoi(tsDetail[4])
+		fields["file_size"] = fileSizeInt
+		chunkSizeInt, _ := strconv.Atoi(tsDetail[5])
+		fields["chunksize"] = chunkSizeInt
+		streamsInt, _ := strconv.Atoi(tsDetail[6])
+		fields["streams"] = streamsInt
+		datarateFloat, _ := strconv.ParseFloat(tsDetail[7], 64)
+		fields["target_datarate"] = datarateFloat
+		fields["protocoll"] = tsDetail[8]
+		fields["source"] = tsDetail[9]
+		fields["receiver_id"] = tsDetail[10]
+	}
+	tsDetail = tsDetailPattern4.FindStringSubmatch(fields["log_message"].(string))
+	if len(tsDetail) > 0 {
+		threadInt, _ := strconv.Atoi(strings.Split(tsDetail[1], "/")[0])
+		fields["thread"] = threadInt
+		fields["source"] = tsDetail[2]
+		fields["destination"] = tsDetail[3]
+		fields["item"] = tsDetail[4]
+		fields["count"] = tsDetail[5]
+	}
+	if strings.Contains(fields["log_message"].(string), "Transfer start") || strings.Contains(fields["log_message"].(string), "Transfer started,") {
+		fields["event"] = "transfer_started"
+		fields["start_time"] = fields["message_timestamp"]
+	}
+	if strings.Contains(fields["log_message"].(string), "Transfer stopped local state=finished") {
+		fields["event"] = "transfer_stopped"
+		fields["end_time"] = fields["message_timestamp"]
+	}
+	// value, ok := fields["transfer_id"]
+	if transferID != "" {
+		fields["transfer_identifier"] = transferID
+	}
+	if fields["transfer_identifier"] == nil {
+		fields["transfer_identifier"] = "unknown"
+	}
+	if fields["message_timestamp"] == nil {
+		fields["message_timestamp"] = newEntry.Timestamp
+	}
 	newEntry.Fields = fields
 	return newEntry
 }
 
-// func parseTixstreamService(entry LogEntry) LogEntry {
-// 	newEntry := entry
-// 	msg := strings.ReplaceAll(entry.Message, "    ", " ")
-// 	parts := strings.Fields(msg)
-// 	if len(parts) < 5 {
-// 		return newEntry
-// 	}
-//
-// 	info := parts[4:]
-//
-// 	if newEntry.Fields == nil {
-// 		newEntry.Fields = make(map[string]any)
-// 	}
-// 	newEntry.Fields["log_level"] = parts[0]
-// 	newEntry.Fields["message_date"] = parts[1]
-// 	newEntry.Fields["message_time"] = parts[2]
-// 	newEntry.Fields["transfer_id"] = parts[3]
-// 	newEntry.Fields["log_message"] = strings.Join(info, " ")
-//
-// 	switch info[0] {
-// 	case "in:":
-// 		newEntry.Fields["log_type"] = "log_message"
-// 		newEntry.Fields["transfer_direction"] = "incoming"
-// 		newEntry.Fields["transfer_info"] = strings.Join(info[1:], " ")
-// 	case "out:":
-// 		newEntry.Fields["log_type"] = "log_message"
-// 		newEntry.Fields["transfer_direction"] = "outgoing"
-// 		newEntry.Fields["transfer_info"] = strings.Join(info[1:], " ")
-// 	case "queue-stats:":
-// 		newEntry.Fields["log_type"] = "queue-stats"
-// 		newEntry.Fields["queue-stats"] = strings.Join(info[1:], " ")
-// 	case "transfer:":
-// 		newEntry.Fields["log_type"] = "transfer_info"
-// 		newEntry.Fields["transfer_info"] = strings.Join(info[1:], " ")
-// 	default:
-// 		newEntry.Fields["log_type"] = "log_message"
-// 		newEntry.Fields["transfer_info"] = strings.Join(info, " ")
-// 	}
-//
-// 	return newEntry
-// }
-
 func parseTJMService(entry LogEntry) LogEntry {
 	newEntry := entry
 	logContent := entry.Message
@@ -335,8 +370,10 @@ func parseTJMService(entry LogEntry) LogEntry {
 		fields["log_message"] = logContent
 	}
 	trNameMatch := tjmTransferNamePattern.FindStringSubmatch(fields["log_message"].(string))
+	var transferName string
+	var transferID string
 	if len(trNameMatch) > 0 {
-		fields["transfer_name"] = trNameMatch[1]
+		transferName = trNameMatch[1]
 		fields["log_message"] = trNameMatch[2]
 		if strings.Contains(trNameMatch[1], "-in") {
 			fields["transfer_direction"] = "incoming"
@@ -345,32 +382,28 @@ func parseTJMService(entry LogEntry) LogEntry {
 			fields["transfer_direction"] = "outgoing"
 		}
 	}
-	value, ok := newEntry.Fields["log_message"]
-	if ok {
-		matches := tjmInnerLogPattern.FindStringSubmatch(value.(string))
-		groups := tjmInnerLogPattern.SubexpNames()
-		if len(matches) >= 1 {
-			for i, name := range groups {
-				if i != 0 && name != "" {
-					newEntry.Fields[name] = matches[i]
-				}
-			}
-		} else {
-			if strings.Contains(value.(string), "TransferJobTixstreamFile") || strings.Contains(value.(string), "PeerJobController.handlePeerJobAction") {
-				if strings.Contains(value.(string), "started transfer session") {
-					tmpSplit := strings.Split(value.(string), " ")
-					newEntry.Fields["transfer_name"] = tmpSplit[0]
-					newEntry.Fields["java_class_method"] = tmpSplit[2]
-					transferID, _ := strings.CutPrefix(strings.Join(tmpSplit[3:], " "), "started transfer session")
-					newEntry.Fields["transfer-id"] = strings.Split(transferID, " ")[0]
-				} else if strings.Contains(value.(string), "set transfer session id") {
-					tmpSplit := strings.Split(value.(string), " ")
-					newEntry.Fields["java_class_method"] = tmpSplit[0]
-					transferID := tmpSplit[len(tmpSplit)-1]
-					newEntry.Fields["transfer-id"] = transferID
-				}
-			}
-		}
+	trIDMatch := tjmTransferIDPattern1.FindStringSubmatch(fields["log_message"].(string))
+	if len(trIDMatch) > 0 {
+		transferID = trIDMatch[1]
+	}
+	trIDMatch = tjmTransferIDPattern2.FindStringSubmatch(fields["log_message"].(string))
+	if len(trIDMatch) > 0 {
+		transferID = trIDMatch[2]
+	}
+	// value, ok := fields["transfer_id"]
+	if transferID != "" {
+		fields["transfer_identifier"] = transferID
+	} else if transferName != "" {
+		// value, ok := fields["transfer_name"]
+		// if ok {
+		fields["transfer_identifier"] = transferName
+		// }
+	}
+	if fields["transfer_identifier"] == nil {
+		fields["transfer_identifier"] = "unknown"
+	}
+	if fields["message_timestamp"] == nil {
+		fields["message_timestamp"] = newEntry.Timestamp
 	}
 
 	newEntry.Fields = fields
@@ -378,93 +411,30 @@ func parseTJMService(entry LogEntry) LogEntry {
 	return newEntry
 }
 
-// func parseTJMService(entry LogEntry) LogEntry {
-// 	newEntry := entry
-// 	msg := strings.TrimSpace(entry.Message)
-// 	msg = strings.ReplaceAll(msg, "           ", " ")
-// 	msg = strings.ReplaceAll(msg, "---", "")
-// 	msg = strings.ReplaceAll(msg, "  ", " ")
-// 	parts := strings.Fields(msg)
-// 	if len(parts) < 4 {
-// 		return newEntry
-// 	}
-//
-// 	info := parts[3:]
-//
-// 	if newEntry.Fields == nil {
-// 		newEntry.Fields = make(map[string]any)
-// 	}
-// 	newEntry.Fields["log_level"] = parts[2]
-// 	newEntry.Fields["message_date"] = parts[0]
-// 	newEntry.Fields["message_time"] = parts[1]
-// 	newEntry.Fields["message"] = strings.Join(info, " ")
-//
-// 	tmpInfo := strings.ReplaceAll(strings.Join(info, " "), "[ ]", "[]")
-// 	tmpInfo = strings.ReplaceAll(tmpInfo, "[ ", "[")
-// 	tmpSplit := strings.Fields(tmpInfo)
-// 	if len(tmpSplit) > 4 {
-// 		newEntry.Fields["username"] = tmpSplit[2]
-// 		newEntry.Fields["correlation_id"] = tmpSplit[1]
-// 		newEntry.Fields["thread_id"] = tmpSplit[3]
-// 		newEntry.Fields["java_class"] = tmpSplit[4]
-// 		newEntry.Fields["log_type"] = "log_message"
-// 		if len(tmpSplit) > 6 && strings.Contains(tmpSplit[6], "-out") {
-// 			newEntry.Fields["transfer_direction"] = "outgoing"
-// 			newEntry.Fields["log_message"] = strings.Join(tmpSplit[7:], " ")
-// 		} else if len(tmpSplit) > 6 && strings.Contains(tmpSplit[6], "-in") {
-// 			newEntry.Fields["transfer_direction"] = "incoming"
-// 			newEntry.Fields["log_message"] = strings.Join(tmpSplit[7:], " ")
-// 		} else {
-// 			newEntry.Fields["log_message"] = strings.Join(tmpSplit[6:], " ")
-// 		}
-// 	}
-// 	value, ok := newEntry.Fields["log_message"]
-// 	if ok {
-// 		matches := tjmInnerLogPattern.FindStringSubmatch(value.(string))
-// 		groups := tjmInnerLogPattern.SubexpNames()
-// 		if len(matches) >= 1 {
-// 			for i, name := range groups {
-// 				if i != 0 && name != "" {
-// 					newEntry.Fields[name] = matches[i]
-// 				}
-// 			}
-// 		} else {
-// 			if strings.Contains(value.(string), "TransferJobTixstreamFile") || strings.Contains(value.(string), "PeerJobController.handlePeerJobAction") {
-// 				if strings.Contains(value.(string), "started transfer session") {
-// 					tmpSplit := strings.Split(value.(string), " ")
-// 					newEntry.Fields["transfer_name"] = tmpSplit[0]
-// 					newEntry.Fields["java_class_method"] = tmpSplit[2]
-// 					transferID, _ := strings.CutPrefix(strings.Join(tmpSplit[3:], " "), "started transfer session")
-// 					newEntry.Fields["transfer-id"] = strings.Split(transferID, " ")[0]
-// 				} else if strings.Contains(value.(string), "set transfer session id") {
-// 					tmpSplit := strings.Split(value.(string), " ")
-// 					newEntry.Fields["java_class_method"] = tmpSplit[0]
-// 					transferID := tmpSplit[len(tmpSplit)-1]
-// 					newEntry.Fields["transfer-id"] = transferID
-// 				}
-// 			}
-// 		}
-// 	}
-//
-// 	return newEntry
-// }
-
 func parseAMService(entry LogEntry) LogEntry {
 	newEntry := entry
 	if newEntry.Fields == nil {
 		newEntry.Fields = make(map[string]any)
 	}
+	fields := make(map[string]any)
 
 	matches := amServicePattern.FindStringSubmatch(strings.TrimSpace(entry.Message))
 	if len(matches) != 7 {
 		return newEntry
 	}
+	timestamp := strings.Join(strings.Split(matches[1], " "), "T")
+	fields["message_timestamp"] = timestamp
+	fields["log_level"] = matches[2]
+	fields["process_id"] = matches[3]
+	fields["thread_id"] = strings.TrimSpace(matches[4])
+	fields["logger_name"] = matches[5]
+	fields["log_message"] = matches[6]
 
-	newEntry.Fields["log_level"] = matches[2]
-	newEntry.Fields["process_id"] = matches[3]
-	newEntry.Fields["thread_name"] = strings.TrimSpace(matches[4])
-	newEntry.Fields["logger_name"] = matches[5]
-	newEntry.Fields["log_message"] = matches[6]
+	fields["transfer_identifier"] = "unknown"
+	if fields["message_timestamp"] == nil {
+		fields["message_timestamp"] = newEntry.Timestamp
+	}
+	newEntry.Fields = fields
 
 	return newEntry
 }
@@ -475,10 +445,24 @@ func parseTCCService(entry LogEntry) LogEntry {
 		newEntry.Fields = make(map[string]any)
 	}
 
+	fields := make(map[string]any)
 	matches := tccServicePattern.FindStringSubmatch(strings.TrimSpace(entry.Message))
 	if len(matches) != 7 {
 		return newEntry
 	}
+	timestamp := strings.Join(strings.Split(matches[1], " "), "T")
+	fields["message_timestamp"] = timestamp
+	fields["log_level"] = matches[2]
+	fields["process_id"] = matches[3]
+	fields["thread_id"] = strings.TrimSpace(matches[4])
+	fields["logger_name"] = matches[5]
+	fields["log_message"] = matches[6]
+
+	fields["transfer_identifier"] = "unknown"
+	if fields["message_timestamp"].(string) == "" {
+		fields["message_timestamp"] = newEntry.Timestamp
+	}
+	newEntry.Fields = fields
 
 	newEntry.Fields["timestamp"] = matches[1]
 	newEntry.Fields["log_level"] = matches[2]
diff --git a/system_metrics.go b/system_metrics.go
index f73d4e4..b75e564 100644
--- a/system_metrics.go
+++ b/system_metrics.go
@@ -4,28 +4,41 @@ import (
 	"context"
 	"fmt"
 	"log/slog"
+	"net"
+	"os"
 	"slices"
 	"sort"
+	"strconv"
+	"strings"
+	"syscall"
 	"time"
 
-	"github.com/elastic/go-elasticsearch/v7"
+	"github.com/elastic/go-elasticsearch/v8"
 	"github.com/shirou/gopsutil/cpu"
 	"github.com/shirou/gopsutil/disk"
 	"github.com/shirou/gopsutil/host"
+	"github.com/shirou/gopsutil/load"
 	"github.com/shirou/gopsutil/mem"
-	"github.com/shirou/gopsutil/net"
+	psnet "github.com/shirou/gopsutil/net"
 	"github.com/shirou/gopsutil/process"
+	"golang.org/x/sys/unix"
 )
 
 type SystemMetricsCollector struct {
-	config       SystemMetrics
-	pollInterval int
+	config           SystemMetrics
+	pollInterval     int
+	lastNetworkStats map[string]NetworkStat
+	lastDiskStats    map[string]DiskIOStat
+	lastMeasureTime  time.Time
 }
 
 func NewSystemMetricsCollector(config SystemMetrics, pollInterval int) *SystemMetricsCollector {
 	return &SystemMetricsCollector{
-		config:       config,
-		pollInterval: pollInterval,
+		config:           config,
+		pollInterval:     pollInterval,
+		lastNetworkStats: make(map[string]NetworkStat),
+		lastDiskStats:    make(map[string]DiskIOStat),
+		lastMeasureTime:  time.Now(),
 	}
 }
 
@@ -88,10 +101,306 @@ func (smc *SystemMetricsCollector) collectMetrics() (SystemResources, error) {
 			slog.Warn("failed to collect process metrics", "error", err)
 		}
 	}
+	if smc.config.CollectDiskIO {
+		if err = smc.collectDiskIOMetrics(&result); err != nil {
+			slog.Warn("failed to collect disk IO metrics", "error", err)
+		}
+	}
+
+	if smc.config.CollectNetworkConnections {
+		if err = smc.collectNetworkConnections(&result); err != nil {
+			slog.Warn("failed to collect network connections", "error", err)
+		}
+	}
+
+	if smc.config.CollectLoadAverage {
+		if err = smc.collectLoadAverage(&result); err != nil {
+			slog.Warn("failed to collect load average", "error", err)
+		}
+	}
+
+	if smc.config.CollectTCPStats {
+		if err = smc.collectTCPStats(&result); err != nil {
+			slog.Warn("failed to collect TCP stats", "error", err)
+		}
+	}
+
+	if smc.config.CollectNetworkLatency {
+		if err = smc.collectNetworkLatency(&result); err != nil {
+			slog.Warn("failed to collect network latency", "error", err)
+		}
+	}
+
+	if smc.config.CollectBandwidthUsage {
+		if err = smc.collectBandwidthUsage(&result); err != nil {
+			slog.Warn("failed to collect bandwidth usage", "error", err)
+		}
+	}
+
+	if smc.config.CollectFileHandles {
+		if err = smc.collectSystemLimits(&result); err != nil {
+			slog.Warn("failed to collect system limits", "error", err)
+		}
+	}
 
 	return result, nil
 }
 
+func (smc *SystemMetricsCollector) collectDiskIOMetrics(result *SystemResources) error {
+	diskIOStats, err := disk.IOCounters()
+	if err != nil {
+		return err
+	}
+
+	currentTime := time.Now()
+	timeDiff := currentTime.Sub(smc.lastMeasureTime).Seconds()
+
+	result.DiskIOStats = make(map[string]DiskIOStat)
+
+	for device, stats := range diskIOStats {
+		ioStat := DiskIOStat{
+			ReadBytes:  stats.ReadBytes,
+			WriteBytes: stats.WriteBytes,
+			ReadOps:    stats.ReadCount,
+			WriteOps:   stats.WriteCount,
+			ReadTime:   stats.ReadTime,
+			WriteTime:  stats.WriteTime,
+		}
+
+		if stats.ReadCount > 0 {
+			ioStat.AvgReadLatency = float64(stats.ReadTime) / float64(stats.ReadCount)
+		}
+		if stats.WriteCount > 0 {
+			ioStat.AvgWriteLatency = float64(stats.WriteTime) / float64(stats.WriteCount)
+		}
+
+		if timeDiff > 0 {
+			totalTime := float64(stats.ReadTime + stats.WriteTime)
+			ioStat.IOUtilization = (totalTime / (timeDiff * 1000)) * 100
+			if ioStat.IOUtilization > 100 {
+				ioStat.IOUtilization = 100
+			}
+		}
+
+		result.DiskIOStats[device] = ioStat
+	}
+
+	return nil
+}
+
+func (smc *SystemMetricsCollector) collectNetworkConnections(result *SystemResources) error {
+	connections, err := psnet.Connections("all")
+	if err != nil {
+		return err
+	}
+
+	stats := ConnectionStats{
+		ConnectionsByState: make(map[string]int32),
+	}
+
+	for _, conn := range connections {
+		stats.TotalConnections++
+
+		stats.ConnectionsByState[conn.Status]++
+
+		switch conn.Status {
+		case "ESTABLISHED":
+			stats.EstablishedTCP++
+		case "LISTEN":
+			stats.ListeningTCP++
+		case "TIME_WAIT":
+			stats.TimeWaitTCP++
+		}
+
+		if slices.Contains(smc.config.TransferPorts, int(conn.Laddr.Port)) ||
+			slices.Contains(smc.config.TransferPorts, int(conn.Raddr.Port)) {
+			stats.TransferConnections++
+		}
+	}
+
+	result.NetworkConnections = stats
+	return nil
+}
+
+func (smc *SystemMetricsCollector) collectLoadAverage(result *SystemResources) error {
+	loadAvg, err := load.Avg()
+	if err != nil {
+		return err
+	}
+
+	result.LoadAverage = append(result.LoadAverage, loadAvg.Load1)
+	result.LoadAverage = append(result.LoadAverage, loadAvg.Load5)
+	result.LoadAverage = append(result.LoadAverage, loadAvg.Load15)
+
+	return nil
+}
+
+func (smc *SystemMetricsCollector) collectTCPStats(result *SystemResources) error {
+	tcpStats := TCPStatistics{}
+
+	if data, err := os.ReadFile("/proc/net/netstat"); err == nil {
+		content := string(data)
+		lines := strings.SplitSeq(content, "\n")
+		for line := range lines {
+			if strings.HasPrefix(line, "TcpExt:") {
+			}
+		}
+	}
+
+	result.TCPStats = tcpStats
+	return nil
+}
+
+func (smc *SystemMetricsCollector) collectNetworkLatency(result *SystemResources) error {
+	result.NetworkLatency = make(map[string]LatencyInfo)
+
+	for _, host := range smc.config.LatencyTestHosts {
+		latency := smc.measureLatency(host)
+		result.NetworkLatency[host] = latency
+	}
+
+	return nil
+}
+
+func (smc *SystemMetricsCollector) measureLatency(host string) LatencyInfo {
+	var latencies []time.Duration
+	var successful int
+
+	for range 5 {
+		start := time.Now()
+		conn, err := net.DialTimeout("tcp", host+":80", 3*time.Second)
+		if err == nil {
+			latency := time.Since(start)
+			latencies = append(latencies, latency)
+			conn.Close()
+			successful++
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	if len(latencies) == 0 {
+		return LatencyInfo{Host: host, PacketLoss: 100.0}
+	}
+
+	var total time.Duration
+	min := latencies[0]
+	max := latencies[0]
+
+	for _, lat := range latencies {
+		total += lat
+		if lat < min {
+			min = lat
+		}
+		if lat > max {
+			max = lat
+		}
+	}
+
+	avg := total / time.Duration(len(latencies))
+	packetLoss := float64(5-successful) / 5.0 * 100.0
+	jitter := max - min
+
+	return LatencyInfo{
+		Host:       host,
+		MinLatency: min,
+		MaxLatency: max,
+		AvgLatency: avg,
+		PacketLoss: packetLoss,
+		Jitter:     jitter,
+	}
+}
+
+func (smc *SystemMetricsCollector) collectBandwidthUsage(result *SystemResources) error {
+	netStats, err := psnet.IOCounters(true)
+	if err != nil {
+		return err
+	}
+
+	result.BandwidthUtilization = make(map[string]BandwidthInfo)
+	currentTime := time.Now()
+	timeDiff := currentTime.Sub(smc.lastMeasureTime).Seconds()
+
+	for _, stat := range netStats {
+		if len(smc.config.NetworkInterfaces) > 0 &&
+			!slices.Contains(smc.config.NetworkInterfaces, stat.Name) {
+			continue
+		}
+
+		bandwidth := BandwidthInfo{Interface: stat.Name}
+
+		if lastStat, exists := smc.lastNetworkStats[stat.Name]; exists && timeDiff > 0 {
+			bytesDiffIn := float64(stat.BytesRecv - lastStat.BytesRecv)
+			bytesDiffOut := float64(stat.BytesSent - lastStat.BytesSent)
+
+			bandwidth.CurrentThroughputIn = (bytesDiffIn / timeDiff) / (1024 * 1024) // MB/s
+			bandwidth.CurrentThroughputOut = (bytesDiffOut / timeDiff) / (1024 * 1024)
+
+			bandwidth.PeakThroughputIn = bandwidth.CurrentThroughputIn
+			bandwidth.PeakThroughputOut = bandwidth.CurrentThroughputOut
+
+			linkCapacityMbps := 1000.0
+			totalThroughput := bandwidth.CurrentThroughputIn + bandwidth.CurrentThroughputOut
+			bandwidth.UtilizationPercent = (totalThroughput / linkCapacityMbps) * 100
+		}
+
+		result.BandwidthUtilization[stat.Name] = bandwidth
+	}
+
+	for _, stat := range netStats {
+		smc.lastNetworkStats[stat.Name] = NetworkStat{
+			BytesSent:   stat.BytesSent,
+			BytesRecv:   stat.BytesRecv,
+			PacketsSent: stat.PacketsSent,
+			PacketsRecv: stat.PacketsRecv,
+		}
+	}
+
+	smc.lastMeasureTime = currentTime
+	return nil
+}
+
+func (smc *SystemMetricsCollector) collectSystemLimits(result *SystemResources) error {
+	limits := SystemLimitInfo{}
+
+	if data, err := os.ReadFile("/proc/sys/fs/file-max"); err == nil {
+		if maxFiles, err := strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64); err == nil {
+			limits.MaxOpenFiles = maxFiles
+		}
+	}
+
+	if data, err := os.ReadFile("/proc/sys/fs/file-nr"); err == nil {
+		fields := strings.Fields(string(data))
+		if len(fields) >= 1 {
+			if currentFiles, err := strconv.ParseUint(fields[0], 10, 64); err == nil {
+				limits.CurrentOpenFiles = currentFiles
+				if limits.MaxOpenFiles > 0 {
+					limits.FileDescriptorUsage = float64(currentFiles) / float64(limits.MaxOpenFiles) * 100
+				}
+			}
+		}
+	}
+
+	var rlimit syscall.Rlimit
+	if err := syscall.Getrlimit(unix.RLIMIT_NPROC, &rlimit); err == nil {
+		limits.MaxProcesses = rlimit.Max
+	}
+
+	result.SystemLimits = limits
+	return nil
+}
+
+// // Hilfsfunktionen
+// func NewSystemResources() SystemResources {
+// 	return SystemResources{
+// 		Timestamp:            time.Now(),
+// 		DiskUsage:           make(map[string]DiskUsage),
+// 		DiskIOStats:         make(map[string]DiskIOStat),
+// 		NetworkStats:        make(map[string]NetworkStat),
+// 		NetworkLatency:      make(map[string]LatencyInfo),
+// 		BandwidthUtilization: make(map[string]BandwidthInfo),
+// 	}
+// }
+
 func (smc *SystemMetricsCollector) collectProcessMetrics(result *SystemResources) error {
 	processes, err := process.Processes()
 	if err != nil {
@@ -206,7 +515,7 @@ func (smc *SystemMetricsCollector) collectDiskMetrics(result *SystemResources) e
 }
 
 func (smc *SystemMetricsCollector) collectNetworkMetrics(result *SystemResources) error {
-	netStats, err := net.IOCounters(true)
+	netStats, err := psnet.IOCounters(true)
 	if err != nil {
 		return err
 	}
diff --git a/web_service.go b/web_service.go
index 091713b..12d956a 100644
--- a/web_service.go
+++ b/web_service.go
@@ -11,7 +11,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/elastic/go-elasticsearch/v7"
+	"github.com/elastic/go-elasticsearch/v8"
 )
 
 type WebService struct {