Category Archives: How to Fix

hive is not allowed to impersonate anonymous 

2021-06-29T17:47:55,131 DEBUG [HiveServer2-Handler-Pool: Thread-52] retry.RetryInvocationHandler: Exception while invoking call #36 ClientNamenodeProtocolTranslatorPB.getFileInfo over null. Not retry
ing because try once and fail.org.apache.hadoop.ipc.RemoteException: User: hive is not allowed to impersonate anonymous
	at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1491) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.Client.call(Client.java:1437) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.Client.call(Client.java:1347) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:228) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116) ~[hadoop-common-3.0.0.jar:?]
	at com.sun.proxy.$Proxy31.getFileInfo(Unknown Source) ~[?:?]
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:874) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291]
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359) ~[hadoop-common-3.0.0.jar:?]
	at com.sun.proxy.$Proxy32.getFileInfo(Unknown Source) ~[?:?]
	at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1697) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1491) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1488) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1503) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1668) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.hive.ql.exec.Utilities.ensurePathIsWritable(Utilities.java:4486) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:760) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:701) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:627) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:586) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionImpl.open(HiveSessionImpl.java:179) ~[hive-service-3.1.2.jar:3.1.2]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_291]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_291]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291]
	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:78) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionProxy.access$000(HiveSessionProxy.java:36) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionProxy$1.run(HiveSessionProxy.java:63) ~[hive-service-3.1.2.jar:3.1.2]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_291]
	at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_291]
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1962) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:59) ~[hive-service-3.1.2.jar:3.1.2]
	at com.sun.proxy.$Proxy39.open(Unknown Source) ~[?:?]
	at org.apache.hive.service.cli.session.SessionManager.createSession(SessionManager.java:425) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.SessionManager.openSession(SessionManager.java:373) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.CLIService.openSessionWithImpersonation(CLIService.java:195) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.thrift.ThriftCLIService.getSessionHandle(ThriftCLIService.java:472) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.thrift.ThriftCLIService.OpenSession(ThriftCLIService.java:322) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1497) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1482) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:56) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) ~[hive-exec-3.1.2.jar:3.1.2]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_291]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_291]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_291]
2021-06-29T17:47:55,133  WARN [HiveServer2-Handler-Pool: Thread-52] service.CompositeService: Failed to open session
java.lang.RuntimeException: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: hive is not allowed to impersonate an
onymous	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:89) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionProxy.access$000(HiveSessionProxy.java:36) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionProxy$1.run(HiveSessionProxy.java:63) ~[hive-service-3.1.2.jar:3.1.2]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_291]
	at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_291]
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1962) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:59) ~[hive-service-3.1.2.jar:3.1.2]
	at com.sun.proxy.$Proxy39.open(Unknown Source) ~[?:?]
	at org.apache.hive.service.cli.session.SessionManager.createSession(SessionManager.java:425) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.SessionManager.openSession(SessionManager.java:373) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.CLIService.openSessionWithImpersonation(CLIService.java:195) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.thrift.ThriftCLIService.getSessionHandle(ThriftCLIService.java:472) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.thrift.ThriftCLIService.OpenSession(ThriftCLIService.java:322) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1497) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.rpc.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1482) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:56) ~[hive-service-3.1.2.jar:3.1.2]
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286) ~[hive-exec-3.1.2.jar:3.1.2]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_291]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_291]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_291]
Caused by: java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.security.authorize.AuthorizationException): User: hive is not allowed to impersonate anonymous
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:651) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:586) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionImpl.open(HiveSessionImpl.java:179) ~[hive-service-3.1.2.jar:3.1.2]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_291]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_291]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291]
	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:78) ~[hive-service-3.1.2.jar:3.1.2]
	... 21 more
Caused by: org.apache.hadoop.ipc.RemoteException: User: hive is not allowed to impersonate anonymous
	at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1491) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.Client.call(Client.java:1437) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.Client.call(Client.java:1347) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:228) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116) ~[hadoop-common-3.0.0.jar:?]
	at com.sun.proxy.$Proxy31.getFileInfo(Unknown Source) ~[?:?]
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:874) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291]
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359) ~[hadoop-common-3.0.0.jar:?]
	at com.sun.proxy.$Proxy32.getFileInfo(Unknown Source) ~[?:?]
	at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1697) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1491) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1488) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1503) ~[hadoop-hdfs-client-3.0.0.jar:?]
	at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1668) ~[hadoop-common-3.0.0.jar:?]
	at org.apache.hadoop.hive.ql.exec.Utilities.ensurePathIsWritable(Utilities.java:4486) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:760) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:701) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:627) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:586) ~[hive-exec-3.1.2.jar:3.1.2]
	at org.apache.hive.service.cli.session.HiveSessionImpl.open(HiveSessionImpl.java:179) ~[hive-service-3.1.2.jar:3.1.2]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_291]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_291]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_291]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_291]
	at org.apache.hive.service.cli.session.HiveSessionProxy.invoke(HiveSessionProxy.java:78) ~[hive-service-3.1.2.jar:3.1.2]
	... 21 more

Solution: add the following configuration to core-site.xml in HDFS

	<property>
		<name>hadoop.proxyuser.hive.groups</name>
		<value>*</value>
	</property>
	<property>
		<name>hadoop.proxyuser.hive.hosts</name>
		<value>*</value>
	</property>

Researchers, hadoop
: https://blog.csdn.net/github_38358734/article/details/77522798

Error attempting to get column from result set

When using mybatis plus3.2.0 + springboot2.1.1, an error is reported
error attaching to get column from result set
1. Generally, this kind of problem occurs. The simplest error may be that the field type of the database is inconsistent with the type of the entity class
2. But I’m not. I use @ builder in the entity class, but I don’t use @ allargsconstructor and @ noargsconstructor, There is no parameterless constructor

Setting the exclutable path of QT running settings

1. Build directory and source code directory are at the same level
2. After the build directory of build is selected, the directory of exclutable is automatically assigned to the debug or release file
3. The directory of the debug or release file is the same level as the source code
2. The working directory of run is at the same level as the source code directory.

Springboot startup error could not resolve placeholder XXX

An error was reported when launching the springboot project today

Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 
'spring.datasource.druid.initialSize' in value "${spring.datasource.druid.initialSize}"

First, confirm whether the field exists in the configuration file and whether the field name is written correctly. If it is confirmed that there is no error, check whether the configuration file is referenced. Generally, we will configure different configuration files in different environments, so we need to specify which configuration file to use in application.yml

spring:
  profiles: 
    active: druid

During the startup process, which file is used will be output. Note that if there is no output, it means that it has no effect

if you check the above, you can try build – & gt; Rebuild project try to rebuild and I succeed.

Elasticsearch starts error summary

error1:   The default startup user of elasticsearch is the non root user, and you can switch to the non root user.

erorr2:   The elasticsearch installation package belongs to the root group, and you can modify the permission group to a non root group.

org.springframework.beans.factory.UnsatisfiedDependencyException

Phenomenon service failed to start
the following error log

Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'webMvcRequestHandlerProvider' defined in URL [jar:file:/D:/IT/maven/repository/io/springfox/springfox-spring-web/2.7.0/springfox-spring-web-2.7.0.jar!/springfox/documentation/spring/web/plugins/WebMvcRequestHandlerProvider.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'adminCompanyController' method 
public java.lang.Object com.qqwl.gold.controller.AdminCompanyController.setExcellent(java.lang.Integer,java.lang.Integer)
to {POST /admin/jyCompany/setType}: There is already 'adminCompanyController' bean method
public java.lang.Object com.qqwl.gold.controller.AdminCompanyController.setType(java.lang.Integer,java.lang.Integer) mapped.

Cause analysis: the mapping path with the same name leads to

ls: cannot access /usr/sbin/smartctl: No such file or directory /usr/sbin/smartctl not found

When installing 11g RAC, an error was reported when installing cvuqdisk-1.0.9-1.rpm package

Oracle version: 11.2.0.4 RAC
operating system version: Oracle_ Linux7.9

# rpm -ivh cvuqdisk-1.0.9-1.rpm 
Preparing...                          ################################# [100%]
ls: cannot access /usr/sbin/smartctl: No such file or directory
/usr/sbin/smartctl not found.
error: %pre(cvuqdisk-1.0.9-1.x86_64) scriptlet failed, exit status 1
error: cvuqdisk-1.0.9-1.x86_64: install failed

Reason: lack of smartctl command
solution: install Smartmontools toolkit : Yum install - y Smartmontools installation

The output is as follows:

# yum install -y smartmontools
Loaded plugins: ulninfo
Resolving Dependencies
--> Running transaction check
---> Package smartmontools.x86_64 1:7.0-2.el7 will be installed
--> Processing Dependency: mailx for package: 1:smartmontools-7.0-2.el7.x86_64
--> Running transaction check
---> Package mailx.x86_64 0:12.5-19.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================
 Package                    Arch                Version                    Repository             Size
=======================================================================================================
Installing:
 smartmontools              x86_64              1:7.0-2.el7                ol7_base              546 k
Installing for dependencies:
 mailx                      x86_64              12.5-19.el7                ol7_base              244 k

Transaction Summary
=======================================================================================================
Install  1 Package (+1 Dependent package)

Total download size: 790 k
Installed size: 2.4 M
Downloading packages:
(1/2): mailx-12.5-19.el7.x86_64.rpm                                             | 244 kB  00:00:00     
(2/2): smartmontools-7.0-2.el7.x86_64.rpm                                       | 546 kB  00:00:00     
-------------------------------------------------------------------------------------------------------
Total                                                                  5.5 MB/s | 790 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : mailx-12.5-19.el7.x86_64                                                            1/2 
  Installing : 1:smartmontools-7.0-2.el7.x86_64                                                    2/2 
  Verifying  : mailx-12.5-19.el7.x86_64                                                            1/2 
  Verifying  : 1:smartmontools-7.0-2.el7.x86_64                                                    2/2 

Installed:
  smartmontools.x86_64 1:7.0-2.el7                                                                     

Dependency Installed:
  mailx.x86_64 0:12.5-19.el7                                                                           

Complete!
#

Perform the installation again:

# rpm -ivh cvuqdisk-1.0.9-1.rpm 
Preparing...                ########################################### [100%]
Using default group oinstall to install package
   1:cvuqdisk               ########################################### [100%]

[Linux] failed to install libudev dev in Ubuntu 18.04

Recently, when compiling BlueZ source code bluez-5.58, you need to install the dependency library libudev dev.
the log is as follows:

checking for UDEV... no
configure: error: libudev >= 172 is required

The solutions are as follows:

 sudo apt-get install libudev-dev

However, due to the slow download speed of Ubuntu’s default software source, the software source was modified to install libudev dev for Tsinghua’s 20.04 source

The installation process is as follows:

➜  ~ sudo apt-get autoremove libudev-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  libudev-dev linux-hwe-5.4-headers-5.4.0-42 linux-hwe-5.4-headers-5.4.0-72
0 upgraded, 0 newly installed, 3 to remove and 1693 not upgraded.
1 not fully installed or removed.
After this operation, 142 MB disk space will be freed.
Do you want to continue?[Y/n] Y
(Reading database ... 234541 files and directories currently installed.)
Removing libudev-dev:amd64 (245.4-4ubuntu3.7) ...
Removing linux-hwe-5.4-headers-5.4.0-42 (5.4.0-42.46~18.04.1) ...
Removing linux-hwe-5.4-headers-5.4.0-72 (5.4.0-72.80~18.04.1) ...
Setting up udev (245.4-4ubuntu3.7) ...
Failed to restart udev.service: Unit systemd-udevd.service is not loaded properly: Exec format error.
See system logs and 'systemctl status udev.service' for details.
invoke-rc.d: initscript udev, action "restart" failed.
● systemd-udevd.service - udev Kernel Device Manager
   Loaded: error (Reason: Exec format error)
   Active: active (running) since Fri 2021-06-25 17:03:02 CST; 18h ago
     Docs: man:systemd-udevd.service(8)
           man:udev(7)
 Main PID: 611 (systemd-udevd)
   Status: "Processing with 24 children at max"
    Tasks: 1 (limit: 15842)
   CGroup: /system.slice/systemd-udevd.service
           └─611 /lib/systemd/systemd-udevd

Jun 26 11:05:01 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
Jun 26 11:06:26 t systemd[1]: systemd-udevd.service: Got notification message from PID 611, but reception is disabled.
Jun 26 11:06:57 t systemd[1]: /lib/systemd/system/systemd-udevd.service:26: Executable path is not absolute: udevadm control --reload --timeout 0
Jun 26 11:06:57 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
Jun 26 11:06:57 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
Jun 26 11:06:57 t systemd[1]: /lib/systemd/system/systemd-udevd.service:26: Executable path is not absolute: udevadm control --reload --timeout 0
Jun 26 11:06:57 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
Jun 26 11:06:57 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
Jun 26 11:06:57 t systemd[1]: /lib/systemd/system/systemd-udevd.service:26: Executable path is not absolute: udevadm control --reload --timeout 0
Jun 26 11:06:57 t systemd[1]: systemd-udevd.service: Cannot add dependency job, ignoring: Unit systemd-udevd.service is not loaded properly: Exec format error.
dpkg: error processing package udev (--configure):
 installed udev package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Errors were encountered while processing:
 udev
E: Sub-process /usr/bin/dpkg returned an error code (1)

As can be seen from the above logs, there was a problem with the installation of libudev dev. then I thought it was nothing and ignored it. As a result, the system could not start normally after restart.
later, through log analysis:

Failed to restart udev.service: Unit systemd-udevd.service is not loaded properly: Exec format error.

Guess whether the version of libudev dev does not correspond to the problem, and then remember that the software source was set before for 20.04, so switch to the official default software source and re install it

The installation log is as follows:

➜  ~ sudo apt-get install libudev-dev
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-hwe-5.4-headers-5.4.0-42 linux-hwe-5.4-headers-5.4.0-72
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  libudev1 udev
The following NEW packages will be installed:
  libudev-dev
The following packages will be upgraded:
  libudev1 udev
2 upgraded, 1 newly installed, 0 to remove and 126 not upgraded.
Need to get 1,180 kB of archives.
After this operation, 206 kB of additional disk space will be used.
Do you want to continue?[Y/n] y
Get:1 http://cn.archive.ubuntu.com/ubuntu bionic-updates/main amd64 udev amd64 237-3ubuntu10.48 [1,103 kB]
Get:2 http://cn.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libudev1 amd64 237-3ubuntu10.48 [58.0 kB]
Get:3 http://cn.archive.ubuntu.com/ubuntu bionic-updates/main amd64 libudev-dev amd64 237-3ubuntu10.48 [19.1 kB]
Fetched 1,180 kB in 6s (214 kB/s)     
(Reading database ... 234373 files and directories currently installed.)
Preparing to unpack .../udev_237-3ubuntu10.48_amd64.deb ...
Unpacking udev (237-3ubuntu10.48) over (237-3ubuntu10.46) ...
Preparing to unpack .../libudev1_237-3ubuntu10.48_amd64.deb ...
Unpacking libudev1:amd64 (237-3ubuntu10.48) over (237-3ubuntu10.46) ...
Setting up libudev1:amd64 (237-3ubuntu10.48) ...
Selecting previously unselected package libudev-dev:amd64.
(Reading database ... 234373 files and directories currently installed.)
Preparing to unpack .../libudev-dev_237-3ubuntu10.48_amd64.deb ...
Unpacking libudev-dev:amd64 (237-3ubuntu10.48) ...
Setting up udev (237-3ubuntu10.48) ...
update-initramfs: deferring update (trigger activated)
Setting up libudev-dev:amd64 (237-3ubuntu10.48) ...
Processing triggers for libc-bin (2.27-3ubuntu1.2) ...
Processing triggers for systemd (237-3ubuntu10.42) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for initramfs-tools (0.130ubuntu3.9) ...
update-initramfs: Generating /boot/initrd.img-5.4.0-74-generic

Done! Problem fix!!

Summary

In Ubuntu, it is convenient to switch the source. At the same time, we must pay attention to the problems in the process of installing the software. Here we encounter the problem of system crash caused by the failure of installing libudev dev

Problems encountered in the installation of pyromacoustics

Twists and turns

Contents of articles

Error 1 error 2 error 3 error 4 reference source link

When installing pyromacoustics, there is only one sentence:

pip install pyroomacoustics

Error 1

My Anaconda navigation interface couldn’t work. I kept reporting errors. I downloaded Anaconda again, but it still couldn’t work. Later, I gave up the latest version of anaconda and used the old version of Anaconda directly. Tsinghua image link:
here is an example https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/
I can download 2020.11
there is a problem with the previously downloaded version of 2021.05.

Error 2

I forgot to report a mistake. Anyway, you need to install the dependency package. You need to install the following first.

conda install matplotlib cython scipy

You can use the following command:

conda init

Then close command pompt and turn it back on.

Error 3

ValueError: check_ hostname requires server_ Hostname
to see if your computer uses a network agent, just turn off the agent I don’t know why. Anyway, it’s right to install with Tsinghua image. As follows:

pip --default-timeout=100 install pyroomacoustics -i https://pypi.tuna.tsinghua.edu.cn/simple

coming

https://blog.csdn.net/sinat_26811377/article/details/106144379

Error creating bean with name xxxxxx : unsatisfied dependency…

Check the mybatis configuration file to see if scanning is configured. My error is because only one PO class is configured for package scanning, and the Po class of another table is not scanned

terms of settlement:

Add the fully qualified name of the Po class to the parametertype of the XML Mapping file, or write the Po class in a package

java.lang.Throwable: Substituted for the exception com.bea.xml.SchemaTypeLoaderException which lack

Weblogic error message:

 <Error> <Console> <AdminServer> <[ACTIVE] ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'> <webuser> <> <> <1624366734323> <BEA-240003> <Administration Console encountered the following error: weblogic.management.provider.UpdateException: [Management:141191]The prepare phase of the configuration update failed with an exception.
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateDeploymentContext(RuntimeAccessDeploymentReceiverService.java:777)
        at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doUpdateDeploymentContextCallback(DeploymentReceiverCallbackDeliverer.java:147)
        at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.updateDeploymentContext(DeploymentReceiverCallbackDeliverer.java:28)
        at weblogic.deploy.service.internal.statemachines.targetserver.ReceivedPrepare.callDeploymentReceivers(ReceivedPrepare.java:203)
        at weblogic.deploy.service.internal.statemachines.targetserver.ReceivedPrepare.handlePrepare(ReceivedPrepare.java:112)
        at weblogic.deploy.service.internal.statemachines.targetserver.ReceivedPrepare.receivedPrepare(ReceivedPrepare.java:52)
        at weblogic.deploy.service.internal.targetserver.TargetRequestImpl.run(TargetRequestImpl.java:211)
        at weblogic.deploy.service.internal.transport.CommonMessageReceiver$1.run(CommonMessageReceiver.java:457)
        at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:553)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:311)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:263)
Caused by: java.lang.Throwable: Substituted for the exception com.bea.xml.SchemaTypeLoaderException which lacks a String contructor, original message - XML-BEANS compiled schema: Could not locate compiled schema resource schemacom_bea_xml/system/s0BC706AE0F5CDA9F4183EB0C5C434EEA/keystores8f60elemtype.xsb (schemacom_bea_xml.system.s0BC706AE0F5CDA9F4183EB0C5C434EEA.keystores8f60elemtype) - code 0
        at com.bea.xbean.schema.SchemaTypeSystemImpl$XsbReader.<init>(SchemaTypeSystemImpl.java:1519)
        at com.bea.xbean.schema.SchemaTypeSystemImpl.resolveHandle(SchemaTypeSystemImpl.java:3505)
        at com.bea.xml.SchemaComponent$Ref.getComponent(SchemaComponent.java:113)
        at com.bea.xml.SchemaType$Ref.get(SchemaType.java:872)
        at com.bea.xbean.schema.SchemaParticleImpl.getType(SchemaParticleImpl.java:194)
        at com.bea.xbean.validator.Validator.beginEvent(Validator.java:389)
        at com.bea.xbean.validator.Validator.nextEvent(Validator.java:241)
        at com.bea.xbean.validator.ValidatingXMLStreamReader.validate_event(ValidatingXMLStreamReader.java:581)
        at com.bea.xbean.validator.ValidatingXMLStreamReader.next(ValidatingXMLStreamReader.java:546)
        at com.bea.xbean.richParser.XMLStreamReaderExtImpl.next(XMLStreamReaderExtImpl.java:1122)
        at com.bea.staxb.runtime.internal.MarshalStreamUtils.advanceToNextStartElement(MarshalStreamUtils.java:120)
        at com.bea.staxb.runtime.internal.UnmarshalResult.advanceToNextStartElement(UnmarshalResult.java:830)
        at com.bea.staxb.runtime.internal.ByNameUnmarshaller.deserializeContents(ByNameUnmarshaller.java:57)
        at com.bea.staxb.runtime.internal.AttributeUnmarshaller.unmarshalIntoIntermediary(AttributeUnmarshaller.java:47)
        at com.bea.staxb.runtime.internal.LiteralUnmarshalResult.unmarshalElementProperty(LiteralUnmarshalResult.java:184)
        at com.bea.staxb.runtime.internal.LiteralUnmarshalResult.extractAndFillElementProp(LiteralUnmarshalResult.java:156)
        at com.bea.staxb.runtime.internal.ByNameUnmarshaller.deserializeContents(ByNameUnmarshaller.java:67)
        at com.bea.staxb.runtime.internal.AttributeUnmarshaller.unmarshalIntoIntermediary(AttributeUnmarshaller.java:47)
        at com.bea.staxb.runtime.internal.UnmarshalResult.unmarshalBindingType(UnmarshalResult.java:199)
        at com.bea.staxb.runtime.internal.UnmarshalResult.unmarshalDocument(UnmarshalResult.java:169)
        at com.bea.staxb.runtime.internal.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:67)
        at weblogic.descriptor.internal.MarshallerFactory$1.createDescriptor(MarshallerFactory.java:150)
        at weblogic.descriptor.BasicDescriptorManager.createDescriptor(BasicDescriptorManager.java:327)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.handleConfigTreeLoad(RuntimeAccessDeploymentReceiverService.java:1092)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateDeploymentContext(RuntimeAccessDeploymentReceiverService.java:697)
>

Because SSL is configured in Weblogic, an error is reported during activation. There is a cluster in the project, and this error occurs,

solve:

Stop the server services corresponding to other cluster nodes, and then modify and activate them. At this time, the changes can be activated normally.

If one node is configured in the cluster, other nodes need to be configured.