Tip: Explanation of the login prompt 'Please restore wgcloud server release. jar before logging in'

1、What data sources (databases) does WGCLOUD support

2、The controlled host of the agent is offline, and the agent reports data errors. If the anti tampering verification fails to print the agent log or the number of anti tampering verification errors exceeds 10 times, the data will no longer be reported

3、Unable to monitor CPU temperature，[wgcloud-agent]2021/07/11 21:39:19 hostUtil.go:93: GetHostTemperatures err: An accident occurred. (Not supported)

4、Can wgcloud run on internal and local networks

5、Server startup failure error, server cannot start, server stops running, unable to start after modifying server configuration file, troubleshooting instructions

6、After the server/host restarts, the server cannot start or access

7、Windows deployment server crashes after startup

8、Troubleshooting instructions for agent startup errors and failures

9、Unable to open server web page, blank page, 404 issue

10、Slow login, slow page loading, no data display on the page, and inability to connect to the database

11、Why can't the server start after modifying the server configuration file

12、Agent process inexplicably stopped running by kill, how to handle it

13、What information can the agent monitor on the host

14、How to modify the agent monitoring reporting time and monitoring frequency

15、Where can I add a monitoring host? How to add a monitoring host

16、During peak network hours, due to network congestion, there may be false alarms of host offline. How to extend the judgment period

17、Both the server and agent have started, but the monitoring host cannot be seen on the host list page. What is the reason

18、Host monitoring information reporting server error: Post "http://192.168.1.2:9999/wgcloud/agentGo/minTask": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

19、Which agent is used for the Aarch64 architecture of the system

20、Is there any member account management

21、Can the admin account be modified? tolerable

22、### Error querying database. Cause: java.sql.SQLSyntaxErrorException: Table 'wgcloud.SYSTEM_INFO' doesn't exist

23、Does it support MySql8.0 version

24、Does JDK have to be 1.8? Does it support JDK1.6 and JDK11

25、Agent monitoring Docker cannot obtain data, log printing GetDockerApiContainerList err： Error response from daemon: client version 1.41 is too new. Maximum supported API version is 1.40

26、Monitoring SQL Server database error The server selected protocol version TLS10 is not accepted by client preferences [TLS12]

27、What language is WGCLOUD developed in

28、Does it support multi node deployment

29、Instruction issuance prompt: The agent has been prohibited from executing the issued instruction

30、Does the agent need to connect to the database, and does the agent host need to connect to the external network

31、Cause: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'FILE_STSTEM' at row 23 ; Data truncation: Data too long for column 'FILE_STSTEM' at row 23;

32、Can servers and agents be deployed to one machine?

33、Why does the monitoring port display a status failure when it is clearly open

34、Optimization tips for monitoring over 100 hosts

35、How to view running error messages

36、How to deal with insufficient character length limit when adding a page

37、Regarding the memory usage of the host, there is no explanation for calculating cache

38、Explanation on excessive CPU usage of processes

39、Do WGCLOUD's servers and agents have to be the same version

40、centos5和REDHAT5，运行不了v3.0的agent

41、Do you support WeChat, DingTalk, and SMS alerts

42、What does' delete 'mean for host list

43、The monitored host has both Linux and Windows. Can the server be deployed on Linux while the agent is deployed on Windows

44、Do I need to install Tomcat

45、Can the 9997 port of the daemon be modified? What are the effects of not starting the daemon

46、Why did the logo and software system name not take effect after being set

47、What does a monitoring indicator of -1.0 represent

48、How often is log file monitoring scanned

49、How long does it take for the server to detect that the host has gone offline and send an alarm after a monitoring host failure

50、How long does it take to collect metric data after adding monitoring processes, ports, Docker, and logs

51、How to obtain process traffic indicators

52、Can the license be changed to a different server before use

53、WGCLOUD server log printing error: ERROR com.wgcloud.util.RestUtil - Request daemon process information error

54、Will the large screen display board automatically refresh

55、What does the keyword for process startup path mean when adding process monitoring

56、What do the read and write indicators of the process monitoring list mean

57、java.lang.IllegalStateException: Clock moved backwards. Refusing to generate id for 48240ms

58、What is the reason for the inaccurate total disk capacity on the monitoring summary page

59、What do the numbers in the top square of the monitoring summary page mean

60、The time and page display time in the server log file are both 8 hours slower

61、Explanation on Apache Log4j Remote Code Execution Vulnerability Has No Impact on WGCLOUD

62、Does it support the Ningsi operating system

63、The problem of garbled characters in DOS windows when starting a server on Windows

64、Explanation on the issue of large upstream and downstream transmission rate values collected by Windows 32-bit agents

65、What is the number of host connections

66、What is the load of the host system

67、How is the disk usage rate% calculated in the host list

68、After deploying WGCLOUD, does it default to not having monitoring information for host processes, Docker, and ports

69、Is WGCLOUD safe

70、What does WGCLOUD Business Edition refer to

71、Does WGCLOUD support domestic operating systems (Xinchuang Environment)

72、Can the disk array be monitored and seen

73、Login password prompt error, what should I do if I forget my password

74、Can we monitor esxi

75、How does the system determine if the host is offline

76、The problem of being killed by the system after the controlled end agent is started

77、MYSQL Error Resolution：ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

78、ERROR com.wgcloud.controller.AgentGoController - agent multiple times at the same time：192.168.1.6

79、How to check the version numbers of servers and agents

80、java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

81、If the password setting for MySQL 5.7 does not take effect, enter the following command to process it

82、JVM error: Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again

83、Agent startup error: ELF binary type "0" not known.

84、How to deal with garbled characters in server log files

85、After logging in, clicking on the page will log out, and then you will be redirected to the login page. What is the problem

86、Can WGCLOUD monitor switches, routers, and firewalls