---
id: 7b028b7f-5992-4e0e-926d-933c0dcc1295
---

# Host Network Receive Errors
---

Host Network Receive Errors refer to issues where the network interface of a host encounters errors while receiving data. Such errors can cause communication disruptions between different components of a system and may lead to service disruptions or failures. These errors can be caused by various factors, including faulty hardware, network congestion, or software misconfigurations. Resolving these issues requires careful diagnosis and troubleshooting to identify the root cause and implement the necessary fixes.

### Parameters
```shell
export INTERFACE_NAME="PLACEHOLDER"

export HOSTNAME="PLACEHOLDER"

export OUTPUT_FILE="PLACEHOLDER"

export OFFENDING_IP_ADDRESS="PLACEHOLDER"
```

## Debug

### Check network interface statistics:
```shell
ifconfig -a
```

### Identify the interface with errors:
```shell
dmesg | grep ${INTERFACE_NAME}
```

### Check network interface errors:
```shell
ethtool -S ${INTERFACE_NAME}
```

### Check network interface hardware issues:
```shell
ethtool -t ${INTERFACE_NAME}
```

### Check network interface configuration:
```shell
cat /etc/network/interfaces
```

### Check system logs for any relevant messages:
```shell
dmesg | tail
```

### Check system load:
```shell
top
```

### Check network connectivity:
```shell
ping ${HOSTNAME}
```

### Check network latency:
```shell
traceroute ${HOSTNAME}
```

### Check network throughput:
```shell
iperf -c ${HOSTNAME}
```

### Check network packet loss:
```shell
mtr ${HOSTNAME}
```

### Check for any open network connections:
```shell
netstat -a
```

### Check for any firewall rules:
```shell
iptables -L
```

### Check system resource utilization:
```shell
vmstat
```

### Check disk space utilization:
```shell
df -h
```

### Network congestion: Heavy network traffic or network congestion can cause Host Network Receive Errors.
```shell


#!/bin/bash



# Set the network interface to diagnose (replace ${INTERFACE_NAME} with the actual interface name)

INTERFACE_NAME=${INTERFACE_NAME}



# Check the current network traffic on the interface

TRAFFIC=$(ifconfig $INTERFACE_NAME | grep "RX packets" | awk '{print $5}')



# Check the current number of errors on the interface

ERRORS=$(ifconfig $INTERFACE_NAME | grep "RX errors" | awk '{print $2}')



# Check if the number of errors is increasing rapidly

if [ $ERRORS -gt 0 ]; then

    ERROR_RATE=$((ERRORS*100/TRAFFIC))

    if [ $ERROR_RATE -gt 5 ]; then

        echo "Network congestion may be causing Host Network Receive Errors on $INTERFACE_NAME"

    else

        echo "Errors on $INTERFACE_NAME are within normal range"

    fi

else

    echo "No errors found on $INTERFACE_NAME"

fi


```

## Repair

### Perform a network trace or packet capture to identify any malicious or abnormal network traffic that may be causing the receive errors. Block or quarantine the offending traffic as necessary.
```shell


#!/bin/bash



# Install tcpdump command if not installed

if ! command -v tcpdump &> /dev/null

then

    sudo apt-get update

    sudo apt-get install tcpdump -y

fi



# Perform network trace or packet capture

sudo tcpdump -i ${INTERFACE_NAME} -w ${OUTPUT_FILE}.pcap



# Analyze network capture using Wireshark

wireshark ${OUTPUT_FILE}.pcap &



# Block or quarantine offending traffic

sudo iptables -A INPUT -s ${OFFENDING_IP_ADDRESS} -j DROP


```

Host Network Receive Errors refer to issues where the network interface of a host encounters errors while receiving data. Such errors can cause communication disruptions between different components of a system and may lead to service disruptions or failures. These errors can be caused by various factors, including faulty hardware, network congestion, or software misconfigurations. Resolving these issues requires careful diagnosis and troubleshooting to identify the root cause and implement the necessary fixes.


This incident type usually occurs when there is a failure in the SSL Handshake process between a client and server running on a Tomcat web server. This can happen for various reasons such as incorrect SSL certificate configuration, cipher suite mismatches, or network connectivity issues. When this type of incident is not resolved quickly, it can lead to downtime or service disruptions for users trying to access the affected service.


Tomcat SSL Handshake Failure Incident

Apache Spark driver failure refers to an incident where the driver program in an Apache Spark cluster fails to execute or crashes during runtime. This can happen due to a variety of reasons such as hardware failure, software bugs, resource constraints, or programming errors. As the driver program is responsible for coordinating the execution of tasks across the cluster, any failure in the driver can result in the entire Spark job failing. This can lead to data loss, processing delays, and impact the overall performance of the Spark cluster.


Spark driver failure incident.

This incident type indicates that there is a high latency issue in the execution of a Spark job. Spark is a distributed computing framework that is used for processing large datasets. High latency in this context means that the time taken to execute the Spark job is significantly longer than expected or normal. This can result in delays in processing data and can impact the performance of the application or system that is utilizing Spark.


High Latency Incident for Spark Job Execution.

This incident type occurs when the ratio of unacknowledged to acknowledged messages in a RabbitMQ queue is higher than usual. This may indicate a problem in the message pipeline and requires investigation to ensure that messages are being processed properly. It is often accompanied by a query alert monitor triggered by a specific metric threshold.


RabbitMQ Unacknowledged Messages Alert

This incident type occurs when a software system is unable to establish a connection to a PostgreSQL database due to the database server refusing the connection. This can be caused by a variety of factors such as network issues, incorrect credentials, or the database server being unavailable. This can lead to the system being unable to perform necessary database operations, which can impact the functionality of the software system.


PostgreSQL database connection refused.

```shell
export INTERFACE_NAME="PLACEHOLDER"

export HOSTNAME="PLACEHOLDER"

export OUTPUT_FILE="PLACEHOLDER"

export OFFENDING_IP_ADDRESS="PLACEHOLDER"
```


### Check network interface statistics:

```shell
ifconfig -a
```

### Identify the interface with errors:

```shell
dmesg | grep ${INTERFACE_NAME}
```

### Check network interface errors:

```shell
ethtool -S ${INTERFACE_NAME}
```

### Check network interface hardware issues:

```shell
ethtool -t ${INTERFACE_NAME}
```

### Check network interface configuration:

```shell
cat /etc/network/interfaces
```

### Check system logs for any relevant messages:

```shell
dmesg | tail
```

### Check system load:

```shell
top
```

### Check network connectivity:

```shell
ping ${HOSTNAME}
```

### Check network latency:

```shell
traceroute ${HOSTNAME}
```

### Check network throughput:

```shell
iperf -c ${HOSTNAME}
```

### Check network packet loss:

```shell
mtr ${HOSTNAME}
```

### Check for any open network connections:

```shell
netstat -a
```

### Check for any firewall rules:

```shell
iptables -L
```

### Check system resource utilization:

```shell
vmstat
```

### Check disk space utilization:

```shell
df -h
```

### Network congestion: Heavy network traffic or network congestion can cause Host Network Receive Errors.

```shell


#!/bin/bash



# Set the network interface to diagnose (replace ${INTERFACE_NAME} with the actual interface name)

INTERFACE_NAME=${INTERFACE_NAME}



# Check the current network traffic on the interface

TRAFFIC=$(ifconfig $INTERFACE_NAME | grep "RX packets" | awk '{print $5}')



# Check the current number of errors on the interface

ERRORS=$(ifconfig $INTERFACE_NAME | grep "RX errors" | awk '{print $2}')



# Check if the number of errors is increasing rapidly

if [ $ERRORS -gt 0 ]; then

    ERROR_RATE=$((ERRORS*100/TRAFFIC))

    if [ $ERROR_RATE -gt 5 ]; then

        echo "Network congestion may be causing Host Network Receive Errors on $INTERFACE_NAME"

    else

        echo "Errors on $INTERFACE_NAME are within normal range"

    fi

else

    echo "No errors found on $INTERFACE_NAME"

fi


```


### Perform a network trace or packet capture to identify any malicious or abnormal network traffic that may be causing the receive errors. Block or quarantine the offending traffic as necessary.

```shell


#!/bin/bash



# Install tcpdump command if not installed

if ! command -v tcpdump &> /dev/null

then

    sudo apt-get update

    sudo apt-get install tcpdump -y

fi



# Perform network trace or packet capture

sudo tcpdump -i ${INTERFACE_NAME} -w ${OUTPUT_FILE}.pcap



# Analyze network capture using Wireshark

wireshark ${OUTPUT_FILE}.pcap &



# Block or quarantine offending traffic

sudo iptables -A INPUT -s ${OFFENDING_IP_ADDRESS} -j DROP


```


Host Network Receive Errors

Overview

Parameters

Debug

Check network interface statistics:

Identify the interface with errors:

Check network interface errors:

Check network interface hardware issues:

Check network interface configuration:

Check system logs for any relevant messages:

Check system load:

Check network connectivity:

Check network latency:

Check network throughput:

Check network packet loss:

Check for any open network connections:

Check for any firewall rules:

Check system resource utilization:

Check disk space utilization:

Network congestion: Heavy network traffic or network congestion can cause Host Network Receive Errors.

Repair

Perform a network trace or packet capture to identify any malicious or abnormal network traffic that may be causing the receive errors. Block or quarantine the offending traffic as necessary.

Learn more

Related Runbooks

Tomcat SSL Handshake Failure Incident

Spark driver failure incident.

High Latency Incident for Spark Job Execution.

RabbitMQ Unacknowledged Messages Alert

Support