Solution: Under the SBIN folder, start DFS SH add the following (as do the stop and yarn commands)
HDFS_DATANODE_USER=root
HADOOP_SECURE_DN_USER=hdfs
HDFS_NAMENODE_USER=root
HDFS_SECONDARYNAMENODE_USER=root
HDFS_JOURNALNODE_USER=root
HDFS_ZKFC_USER=rootAn error occurred:
[ERROR] InnoDB: Unable to lock ./ibdata1 error: 11
[Note] InnoDB: Check that you do not already have another mysqld process using the same InnoDB data or log files.
Solution:
enter the MySQL folder
When compiling an open source project DB engine paradigms,
The project GitHub address reported an error as follows
/usr/lib/gcc/x86_64-linux-gnu/5/include/avx512vlintrin.h:10325:1: error: inlining failed in call to always_inline '__m256i _mm256_mmask_i32gather_epi32(__m256i, __mmask8, __m256i, const int*, int)': target specific option mismatch
_mm256_mmask_i32gather_epi32 (__m256i __v1_old, __mmask8 __mask,
As soon as I see it, I’ll put cmakelists under the root directory of this project.txt
Add -mavx512vl! it’s awesome!
# Compiler flags for the different targets
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -mtune=native -std=c++14 -fPIC -Wall -Wextra -Wno-psabi -fno-omit-frame-pointer -Wno-unknown-pragmas -mavx512vl")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -Wall -Wextra -fno-omit-frame-pointer -march=native -fdiagnostics-color -mavx512vl")
Idea startup message Java lang.StackOverflowError
1. File in the upper left corner of idea
2. Settings in file
3 Find build, execution, deployment
4 Find compiler
5 Modify this thing, to -Xss4m 
according to requirements
How to Solve the license manager error-8 problem in MATLAB 2018a
After confirming that all files in the crack file have been copied to the installation file of MATLAB. The MATLAB shortcut cannot be started after clicking on the desktop. Delete the shortcut of the desktop and enter matlab.com under the bin directory file of the installation file Exe file to start.
When I want to create a new branch and switch to the new branch,
execute git checkout -b #233_change_something,
prompt error: switch ‘B’ requires a value
guess that the branch name is caused by the beginning of #,
so try to put quotation marks on the branch name
git checkout -b "#233_change_something"
Done!
Details of the problem are as follows:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webMvcObjectMapperConfigurer' defined in class path resource [springfox/documentation/spring/web/SpringfoxWebMvcConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [springfox.documentation.spring.web.WebMvcObjectMapperConfigurer] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:597) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-5.3.13.jar:5.3.13]
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.13.jar:5.3.13]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.13.jar:5.3.13]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.7.jar:2.5.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:765) [spring-boot-2.5.7.jar:2.5.7]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:445) [spring-boot-2.5.7.jar:2.5.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) [spring-boot-2.5.7.jar:2.5.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1354) [spring-boot-2.5.7.jar:2.5.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) [spring-boot-2.5.7.jar:2.5.7]
at com.xx.xxApplication.main(xxApplication.java:12) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-2.5.7.jar:2.5.7]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [springfox.documentation.spring.web.WebMvcObjectMapperConfigurer] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.13.jar:5.3.13]
at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:232) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:210) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:149) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:305) ~[spring-context-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1116) ~[spring-beans-5.3.13.jar:5.3.13]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594) ~[spring-beans-5.3.13.jar:5.3.13]
... 20 common frames omitted
Caused by: java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_121]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_121]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_121]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.13.jar:5.3.13]
... 27 common frames omitted
Caused by: java.lang.ClassNotFoundException: com.fasterxml.jackson.databind.ObjectMapper
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_121]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_121]
... 31 common frames omitted
Process finished with exit code 0
The pom.XML file is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.7</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.xx</groupId>
<artifactId>xx</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>xx</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!--Web-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--jdbc-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<version>2.5.7</version>
</dependency>
<!--Mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.2.0</version>
</dependency>
<!--devtools-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<!--postgresql-->
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<scope>runtime</scope>
</dependency>
<!--spring-boot-starter-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--restdocs-->
<dependency>
<groupId>org.springframework.restdocs</groupId>
<artifactId>spring-restdocs-mockmvc</artifactId>
<scope>test</scope>
</dependency>
<!--shiro-->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-web</artifactId>
<version>1.5.3</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>1.5.3</version>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.25</version>
</dependency>
<!--gson-->
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
<!--lombok-->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
<!--swagger-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
<!--junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.asciidoctor</groupId>
<artifactId>asciidoctor-maven-plugin</artifactId>
<version>1.5.8</version>
<executions>
<execution>
<id>generate-docs</id>
<phase>prepare-package</phase>
<goals>
<goal>process-asciidoc</goal>
</goals>
<configuration>
<backend>html</backend>
<doctype>book</doctype>
</configuration>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.springframework.restdocs</groupId>
<artifactId>spring-restdocs-asciidoctor</artifactId>
<version>${spring-restdocs.version}</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
</plugin>
</plugins>
</build>
</project>
Solution:
First, Check pom.xml file that we have excluded the jackjson , which comes with spring-boot-starter-web:
<exclusions>
<exclusion>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
</exclusion>
</exclusions>
Gson is used instead of Jackson :
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
</dependency>
We also introduced the swagger dependency:
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>
This is the problem. No matter which version of swaggerwe introduce, the above problems will occur, because swagger uses Jackson to convert JSON, but gson is incompatible with swagger.
Solution:
Use the default Jackson
Customize the configuration of Gson
Cause of the problem
the jar package prompted is occupied by other programs, so it is impossible to repackage and replace the old package
Solution:
1. If the jar package can be run, check whether the jar package is running and end the corresponding process
2. Check whether the read-write permission of the jar package has been changed and give the file read-write permission before operation
3. Check whether other software is editing the jar package file (such as compression software) and exit editing
Solution:
1. Start – run – enter CMD
2. Enter CD% windir%\system32 (enter system32 folder of windows installation directory)
3. Enter Regsvr32 msxml3.dll
4. All the above faults are solved
When training torchvision’s maskrcnn with your own data, the following errors are reported:
Traceback (most recent call last):
File "main_train_detection.py", line 232, in <module>
main(params)
File "main_train_detection.py", line 201, in main
train_one_epoch(model, optimizer, data_loader, device, epoch, print_freq=10)
File "/raid/huaqing/tyler/suzhou/code/utils/engine.py", line 37, in train_one_epoch
loss_dict = model(images, targets)
File "/usr/local/lib/python3.8/dist-packages/torch/nn/modules/module.py", line 1051, in _call_impl
return forward_call(*input, **kwargs)
File "/usr/local/lib/python3.8/dist-packages/torchvision/models/detection/generalized_rcnn.py", line 97, in forward
detections, detector_losses = self.roi_heads(features, proposals, images.image_sizes, targets)
File "/usr/local/lib/python3.8/dist-packages/torch/nn/modules/module.py", line 1051, in _call_impl
return forward_call(*input, **kwargs)
File "/usr/local/lib/python3.8/dist-packages/torchvision/models/detection/roi_heads.py", line 760, in forward
loss_classifier, loss_box_reg = fastrcnn_loss(
File "/usr/local/lib/python3.8/dist-packages/torchvision/models/detection/roi_heads.py", line 40, in fastrcnn_loss
sampled_pos_inds_subset = torch.where(labels > 0)[0]
RuntimeError: CUDA error: device-side assert triggered
CUDA kernel errors might be asynchronously reported at some other API call,so the stacktrace below might be incorrect.
For debugging consider passing CUDA_LAUNCH_BLOCKING=1.
The root cause is that the category label is not numbered from 0:
there are actually three categories of targets to be identified, so the total number of categories set is 3 Then set the corresponding relationship between category labels and categories as follows:
cls_dict = {'holes':1, 'marker':2, 'band':3}.
When numbering category labels, they are actually numbered from 0. For a total of 3 categories, the label numbers are 0, 1 and 2 respectively In other words, there is no label = = 3 category Therefore, the above CLS_Dict is adopted, which will cause the number of band class to overflow It should be corrected as follows:
cls_dict = {'holes':0, 'marker':1, 'band':2}
This kind of problem is generally a compiler configuration problem, the solution:
[Environment] windows
1.Click files, delete cache;
2.Click configure again, click the corresponding configuration
3.It is best to manually select X86, the VS version may not necessarily automatically select the computer type.
After updating the system, open JD GUI and report the following error:
ERROR launching 'JD-GUI'
No suitable Java version found on your system!
This program requires Java 1.8+
Make sure you install the required Java version.
Solution:
1. Right click JD_GUI icon showing package content
2. Locate the file Universal Java application stub file and open it with a text editor
3. Use https://raw.githubusercontent.com/tofi86/universalJavaApplicationStub/master/src/universalJavaApplicationStub Replace the content in the universal Java application stub with the content in
4. Reopen to use