Unity3D Persistent Storage

[Unity3D Persistent Storage] 1.PlayerPrefs类以键值对的形式来提供PersistentStorage能力.提供小额存储能力.(做成sst可以提供大规模数据存储) 2.PlayerPrefs删除数据. 3.使用PlayerPrefs实例. void OnGUI() { GUILayout.BeginHorizontal ()); GUILayout.Label ("请输入姓名"); username = GUILayout.TextField(us…

Exception loading sessions from persistent storage

严重: Exception loading sessions from persistent storage java.io.EOFException 删除Tomcat里面的work/Catalina/localhost下的内容即可解决 Tomcat在启动时出现如下异常问题: 严重: IOException while loading persisted sessions: java.io.EOFException严重: Exception loading sessions from persi…

Exception loading sessions from persistent storage 这个问题的解决

现在经常在做一个项目时重启时会报: 严重: Exception loading sessions from persistent storage的问题. 这个问题的原因是tomcat的session持久化机制引起的,tomcat这个功能本身的用意在于重启tomcat后保持之前的session,但是在tomcat非正常关闭后,tomcat尝试恢复session时读取失败,就抛出错误,但是并不影响系统使用. 如果需要避免这个问题关闭tomcat的持久化功能就就可以了,具体为修改conf下的serve…

web后台获取不到session中的值(loading sessions from persistent storage)，后改用JS传值

线上的程序似乎从session中取不到domain数据,重启了一下tomcat查看log日志发现,居然有报错.错误信息如下 22-Sep-2016 00:52:16.562 SEVERE [localhost-startStop-1] org.apache.catalina.session.StandardManager.startInternal Exception loading sessions from persistent storage java.io.StreamCorrupted…

解决tomcat重启时报严重: Exception loading sessions from persistent storage的问题

很多项目在重启时会报:严重: Exception loading sessions from persistent storage的问题.该问题的原因是tomcat的session持久化机制引起的,tomcat这个功能本身的用意在于重启tomcat后保持之前的session,但是在tomcat非正常关闭后,tomcat尝试恢复session时读取失败,就抛出错误,不影响系统使用. 如果需要避免这个问题关闭tomcat的持久化功能就就可以了,具体为修改conf下的server.xml文件.在项目的…

转：Exception loading sessions from persistent storage

直用tomcat一段时间都正常无事,最近一次启动tomcat就发生以下异常: 严重: IOException while loading persisted sessions: java.io.EOFException 严重: Exception loading sessions from persistent storage 原因是tomcat对硬盘的session读取失败,彻底解决办法一下:将work下面的文件清空,主要是*.ser文件,或者只是删除掉session.ser即可以解决. 如:…

eclipse启动Tomcat时报错：严重: Exception loading sessions from persistent storage

我的项目工程是Spring+hibernate+structs 1.0,最近启动tomcat时多次遇到如下异常: 严重: IOException while loading persisted sessions: java.io.EOFException 严重: Exception loading sessions from persistent storage 等信息. 经我查询一些网上信息,大致了什么原因,并且知道如何解决这个问题. 1.为什么会出现这种异常? 多数是因为非正常方式关闭了t…

严重: Exception loading sessions from persistent storage

2011-11-24 10:05:00| 分类: java学习|举报|字号订阅当tomcat启动的时候出现下面错误: [ERROR] org.apache.catalina.session.ManagerBase - IOException while loading persisted sessions: java.io.EOFException 或者严重: IOException while loading persisted sessions: java.io.EOFExc…

[Docker] Create Docker Volumes for Persistent Storage

Docker containers are stateless by default. In order to persist filesystem changes, you must use docker volumes. In this lesson, we will go over how to copy files over to Docker containers, how to create volumes and copy data to them, and also how to…

严重: Exception loading sessions from persistent storage Java.io.EOFException

tomcat启动时报此异常,但web页均能正常运行:对程序影响不大. /*具体原因时tomcat--work--(你当前运行的工程名)--session.ser*/删除即可解决分析: EOFException表示输入过程中意外地到达文件尾或流尾的信号,导致从session中获取数据失败. 异常是tomcat本身的问题,由于tomcat上次非正常关闭时有一些活动session被持久化(表现为一些临时文件), 在重启时,tomcat尝试去恢复这些session的持久化数据但又读取失败造成的.此异常…

"Principles of Reactive Programming" 之 <Persistent Actor State>学习笔记

这是<Pinciples of Reactive Programming>week6的最后一课. 为什么需要把actor的状态持久化? 如果actor没有状态,那么在任何实时,这个actor的行为都是一致的.但是对于有状态的actor,其行为跟当前状态相关.所以当系统由于意外down掉以后,需要恢复系统的状态,意味着需要恢复actor的状态. Actors representing a stateful resource shall not lose important state due t…

AngularJS Front-End App with Cloud Storage Tutorial Part 1: Building a Minimal App in Seven Steps

原文 : http://www.codeproject.com/Articles/1027709/AngularJS-Front-End-App-with-Cloud-Storage-Tutoria Learn how to build a front-end web application with minimal effort in seven steps, using the AngularJS framework and the cloud storage service Parse…

Low-overhead enhancement of reliability of journaled file system using solid state storage and de-duplication

A mechanism is provided in a data processing system for reliable asynchronous solid-state device based de-duplication. Responsive to receiving a write request to write data to the file system, the mechanism sends the write request to the file system,…

google cloud storage products

https://cloud.google.com/products/storage/ BigTable Cloud Bigtable 是 Google 面向大数据领域的 NoSQL 数据库服务.它也是为 Google 搜索.Analytics(分析).地图和 Gmail 等众多核心 Google 服务提供支撑的数据库. https://cloud.google.com/bigtable/docs/?_ga=2.253537231.-792515609.1538018833 Cloud Bigta…

LIST OF NOSQL DATABASES [currently 150]

http://nosql-database.org Core NoSQL Systems: [Mostly originated out of a Web 2.0 need] Wide Column Store / Column Families Hadoop / HBase API: Java / any writer, Protocol: any write call, Query Method: MapReduce Java / any exec, Replication: HDFS Re…

Unity 2018 Cookbook (Matt Smith 著)

1. Displaying Data with Core UI Elements (已看) 2. Responding to User Events for Interactive UIs (已看) 3. Inventory UIs (已看) 4. Playing and Manipulating Sounds 5. Creating Textures, Maps, and Materials 6. Shader Graphs and Video Players 7. Using Cameras…

Fedora 24中的日志管理

Introduction Log files are files that contain messages about the system, including the kernel, services, and applications running on it. There are different log files for different information. For example, there is a default system log file, a log f…

1.2 - C#语言习惯 - 用运行时常量readonly而不是编译期常量const

C#中有两种类型的常量:编译期常量和运行时常量.二者有着截然不同的行为,使用不当将会带来性能上或正确性上的问题. 这两个问题最好都不要发生,不过若难以同时避免的话,那么一个略微慢一些但能保证正确的程序则要好过一个快速但不能正常工作的程序. 考虑到这些,你应该尽量使用运行时常量,而不是编译期常量. 虽然编译期常量略微快一些,但是却没有运行时常量那么灵活.应紧紧在那些性能异常敏感,且常量的值在各个版本之间绝对不会变化时,再使用编译期常量. 运行时常量使用readonly关键字声明,编译期常量则使用c…

java.io.EOFException

错误代码如下: 严重: IOException while loading persisted sessions: java.io.EOFException java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2325) at java.io.ObjectInputStream$BlockDataInputStream.readShort(Object…

MySQL 数据库主从复制架构

前文<MySQL 数据库事务与复制>分析了 MySQL 复制过程中如何保证 binlog 和事务数据之间的一致性,本文进一步分析引入从库后需要保证主从的数据一致性需要考虑哪些方面. 原生复制架构 MySQL 的原生复制架构原理如上图所示.从库的 I/O Thread 线程负责不断读取主库的 binlog 日志文件并写入本地的 Relay log 临时缓存.从库的 SQL Thread 线程则不断读取 Relay log 重放事件入库.整个过程看起来是比较简单清晰的,但其中有几个点对主从数据一致…

Hadoop HDFS 用户指南

This document is a starting point for users working with Hadoop Distributed File System (HDFS) either as a part of a Hadoop cluster or as a stand-alone general purpose distributed file system. While HDFS is designed to "just work" in many enviro…

SharedPreferences.Editor 的apply()与commit()方法的区别

commit()的文档官方文档如下: Commit your preferences changes back from this Editor to the SharedPreferences object it is editing. This atomically performs the requested modifications, replacing whatever is currently in the SharedPreferences. Note that when tw…

Android Lint Checks

Android Lint Checks Here are the current list of checks that lint performs as of Android Studio 2.3 dev: Correctness =========== AdapterViewChildren ------------------- Summary: AdapterViews cannot have children in XML Priority: 10 / 10 Sever…

uboot命令一览

? - alias for 'help' base - print or set address offset bdinfo - print Board Info structure boot - boot default, i.e., run 'bootcmd' bootd - boot default, i.e., run 'bootcmd' bootelf - Boot from an ELF image in memory bootm - boot application image f…

HTML5离线Web应用实战：五步创建成功

[IT168 技术]HTML5近十年来发展得如火如荼,在HTML 5平台上,视频,音频,图象,动画,以及同电脑的交互都被标准化.HTML功能越来越丰富,支持图片上传拖拽.支持localstorage.支持web sql database.支持文件存储api等等.它任重而道远,致力于将Web带入一个更为成熟的应用平台.在所有炫酷特性中,最让我喜欢的是它具有离线缓存Web应用的功能. 开发离线Web 应用程序:三大核心功能在开发支持离线的 Web 应用程序时,开发者通常需要使用以下三个方面的功能:…

Overview of the Oppia codebase（Oppia代码库总览）

Oppia is built with Google App Engine. Its backend is written in Python, and its frontend is written using AngularJS. Oppia是基于Google App Engine开发建设的.它的后台是用Python编写,前端是用AngularJS编写. The core核心 Most of Oppia's functionality is in the core/ directory, w…