1. Journalctl – Xe print job for zabbix-agent.service failed because a configured resource limit was exceeded

2. Journal CTL – Xe print PID… Not runnable

resolvent:

Check whether there is a folder named ZABBIX in the/run directory. If not, create a new one

# mkdir zabbix

Then start ZABBIX  
# systemctl start   zabbix-agent

# systemctl status zabbix-agent

1. First of all, to determine whether it is an environmental variable

If you input javac command and Java command in the command line, you can output a lot of things, which means that there is no problem in the configuration of environment variables. Otherwise, you need to configure environment variables

First, create a new Java_ The value of the home variable is the installation path of JDK. For example, my value is “D:// developtools/Java/JDK”. The contents in quotation marks, excluding quotation marks, are the same below.

Then add% Java after the path variable_ Home% \ bin “and% Java_ HOME%\jre\bin”

Create a new classpath variable with the value of “.”,% JAVA_ HOME%\lib;% JAVA_ HOME%\lib\tools.jar;”

The environment variables are configured.

2. If the path of the java file is correct, it is still reported that Java cannot find or load the main class, that is the problem of the package name. CMD locates in the SRC folder of the module, calls the Java command, and the bytecode file name is with the package name

That’s it

I checked many methods on the Internet, and all of them introduced the orbitcontrols in the example. However, these methods I use now report errors. The specific problem may be that the versions are different, and I don’t particularly study them in depth. At this moment, the method I use is to introduce three orbitcontrols, which can be tested by myself

import * as THREE from "three";
import { OrbitControls } from 'three-orbitcontrols-ts';


const controls = new OrbitControls(camera, renderer.domElement);

Note: many methods are temporarily feasible, more often need to verify!

Node sass version 6.0.0 is not compatible with ^ 4.0.0
1. Uninstall the previous version of node sass
NPM install node sass
2. Install version 4.0.0 after uninstall
NPM install [email protected]
Here may fail, because you install the Taobao image problem.

If it fails, reload the Taobao image
NPM install – G cnpm — registry= https://registry.npm.taobao.org
After reassembling, perform the second step again

npm install [email protected]

Restart the project NPM run dev

The error is: cause: org. XML. Sax. Saxparseexception; lineNumber: 5; columnNumber: 26; Byte 1 of 1-byte UTF-8 sequence is invalid.

It’s in your XML file

It is set to the default UTF-8 and needs to be set to utf8

Syntax Error: SassError: Invalid CSS after "...-height: #{math": expected expression (e.g. 1px, bold), was ".div($--input-heigh"
        on line 142 of node_modules/element-plus/packages/theme-chalk/src/input-number.scss
        from line 13 of node_modules/element-plus/packages/theme-chalk/src/index.scss
        from line 10 of src/assets/css/element-variables.scss
        from line 1 of src/assets/css/global.scss
>>       line-height: #{math.div($--input-height - 2, 2)};

   -------------------------^

terms of settlement

npm i sass-loader node-sass --save-dev

First of all, I installed it successfully, but I couldn’t start it. The error is as follows

docker An error occurred  
First, see if virtualization is turned on

If not, open Baidu by itself. Tip: can I open the meeting here   CPU model, motherboard model, windows system version, some versions just can’t be turned on. Then if the version is OK   All the settings in BIOS and windows system must be turned on at the same time.

Can’t you open it?

Try the link below

https://blog.csdn.net/ruibin_ cao/article/details/80959954

After I went through the above steps, I still reported an error, but I had no choice but to reload docker.

And this time, I can’t even fit it

Failed with the following error:
component communityinstaller.serviceaction failed: failed to start service:  
The service did not respond to the start or control request in a timely fashion at CommunityInstaller.Service.Service.< StartAsync> d__ 29.MoveNext() — End of stack trace from previous location where exception was thrown —  
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)  
at CommunityInstaller.Service.Manager.< AddServiceAsync> d__ 23.
the following methods have been tried

https://blog.csdn.net/fenger_ c/article/details/114800687

https://blog.csdn.net/weixin_ 42787754/article/details/104209345

https://www.cnblogs.com/zhiqsyr/p/12364124.html

Useless, but so far, the status is: computer virtualization has been turned on, docker related files have been deleted.

Every time I install, I check the option of opening virtualization in docker at the beginning. I think it is already opened, so I don’t check it here, so I check this option, and then install OK, open OK and run OK..

import java.io.IOException;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import org.snmp4j.CommunityTarget;
import org.snmp4j.Snmp;
import org.snmp4j.Target;
import org.snmp4j.TransportMapping;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;
import org.snmp4j.util.DefaultPDUFactory;
import org.snmp4j.util.TreeEvent;
import org.snmp4j.util.TreeUtils;

public class SnmpWalk2 {

	private static int[] octetStringToBytes(String value_ipar) {
		// ---------------------------
		// Split string into its parts
		// ---------------------------
		String[] bytes;
		bytes = value_ipar.split("[^0-9A-Fa-f]");

		// -----------------
		// Initialize result
		// -----------------
		int[] result;
		result = new int[bytes.length];

		// -------------
		// Convert bytes
		// -------------
		int counter;
		for (counter = 0; counter < bytes.length; counter++)
			result[counter] = Integer.parseInt(bytes[counter], 16);

		// ----
		// Done
		// ----
		return (result);

	}
	// octetString 转 Date

	private static Date octetStringToDate(String value_ipar) throws Exception {
		// ---------------------------
		// Convert into array of bytes
		// ---------------------------
		int[] bytes;
		bytes = octetStringToBytes(value_ipar);

		// -----------------------
		// Maybe nothing specified
		// -----------------------
		if (bytes[0] == 0)
			return (null);

		// ------------------
		// Extract parameters
		// ------------------
		int year;
		int month;
		int day;
		int hour;
		int minute;
		int second;
		int deci_sec = 0;
		int offset = 0;
		year = (bytes[0] * 256) + bytes[1];
		month = bytes[2];
		day = bytes[3];
		hour = bytes[4];
		minute = bytes[5];
		second = bytes[6];
		if (bytes.length >= 8)
			deci_sec = bytes[7];
		if (bytes.length >= 10) {
			offset = bytes[9] * 60;
			if (bytes.length >= 11)
				offset += bytes[10];
			if (bytes[8] == '-')
				offset = -offset;
			offset *= 60 * 1000;
		}

		// ------------------------------------
		// Get current DST and time zone offset
		// ------------------------------------
		Calendar calendar;
		int my_dst;
		int my_zone;
		calendar = Calendar.getInstance();
		my_dst = calendar.get(Calendar.DST_OFFSET);
		my_zone = calendar.get(Calendar.ZONE_OFFSET);

		// ----------------------------------
		// Compose result
		// Month to be converted into 0-based
		// ----------------------------------
		calendar.clear();
		calendar.set(Calendar.YEAR, year);
		calendar.set(Calendar.MONTH, month - 1);
		calendar.set(Calendar.DAY_OF_MONTH, day);
		calendar.set(Calendar.HOUR_OF_DAY, hour);
		calendar.set(Calendar.MINUTE, minute);
		calendar.set(Calendar.SECOND, second);
		calendar.set(Calendar.MILLISECOND, deci_sec * 100);

		// ---------
		// Reset DST
		// ---------
		calendar.add(Calendar.MILLISECOND, my_dst);

		// -----------------------------------------------------------------------------------
		// If the offset is set, we have to convert the time using the offset of
		// our time zone
		// -----------------------------------------------------------------------------------
		if (offset != 0) {
			int delta;
			delta = my_zone - offset;
			calendar.add(Calendar.MILLISECOND, delta);
		}

		// -------------
		// Return result
		// -------------
		return (calendar.getTime());

	}

	// octetString 转 中文

	private static String getChinese(String variable) {
		String result = variable;

		if (!variable.contains(":")) {
			return result;
		}

		if (result.equals(variable)) {
			try {

				String[] temps = variable.split(":");
				byte[] bs = new byte[temps.length];
				for (int i = 0; i < temps.length; i++)
					bs[i] = (byte) Integer.parseInt(temps[i], 16);
				result = new String(bs, "gbk");
			} catch (Exception ex) {

			}
		}
		return result;

	}

	public static void main(String[] args) throws Exception {
		CommunityTarget target = new CommunityTarget();
		target.setCommunity(new OctetString("public"));
		target.setAddress(GenericAddress.parse("udp:127.0.0.1/161")); // supply your own IP and port
		target.setRetries(2);
		target.setTimeout(1500);
		target.setVersion(SnmpConstants.version2c);

		Map<String, String> result = doWalk(".1.3.6.1.2.1.25.6.3.1", target); // ifTable, mib-2 interfaces

		for (Map.Entry<String, String> entry : result.entrySet()) {

			if (entry.getKey().startsWith(".1.3.6.1.2.1.25.6.3.1.2")) {
				System.out.println("name" + entry.getKey().replace(".1.3.6.1.2.1.25.6.3.1.2", "") + ": "
						+ getChinese(entry.getValue()));
			}
			if (entry.getKey().startsWith(".1.3.6.1.2.1.25.6.3.1.4")) {
				System.out.println("type" + entry.getKey().replace(".1.3.6.1.2.1.25.6.3.1.4", "") + ": "
						+ getChinese(entry.getValue()));
			}
			if (entry.getKey().startsWith(".1.3.6.1.2.1.25.6.3.1.5")) {
				System.out.println("datetime" + entry.getKey().replace(".1.3.6.1.2.1.25.6.3.1.5", "") + ": "
						+ octetStringToDate(entry.getValue()));
			}
		}
	}

	public static Map<String, String> doWalk(String tableOid, Target target) throws IOException {
		Map<String, String> result = new TreeMap<>();
		TransportMapping<?extends Address> transport = new DefaultUdpTransportMapping();
		Snmp snmp = new Snmp(transport);
		transport.listen();

		TreeUtils treeUtils = new TreeUtils(snmp, new DefaultPDUFactory());
		List<TreeEvent> events = treeUtils.getSubtree(target, new OID(tableOid));
		if (events == null || events.size() == 0) {
			System.out.println("Error: Unable to read table...");
			return result;
		}

		for (TreeEvent event : events) {
			if (event == null) {
				continue;
			}
			if (event.isError()) {
				System.out.println("Error: table OID [" + tableOid + "] " + event.getErrorMessage());
				continue;
			}

			VariableBinding[] varBindings = event.getVariableBindings();
			if (varBindings == null || varBindings.length == 0) {
				continue;
			}
			for (VariableBinding varBinding : varBindings) {
				if (varBinding == null) {
					continue;
				}

				result.put("." + varBinding.getOid().toString(), varBinding.getVariable().toString());
			}

		}
		snmp.close();

		return result;
	}

}