小编sho*_*000的帖子

我用768mb ram运行centos 5.5.我一直server reached MaxClients setting, consider raising the MaxClients setting在日志中,apache运行真的很慢.当我看到仙人掌图时,它显示服务器甚至没有使用所有资源..这是当前配置

<IfModule prefork.c>
StartServers       8
MinSpareServers    5
MaxSpareServers    10
ServerLimit        1024
MaxClients         768
MaxRequestsPerChild  4000
</IfModule>

<IfModule worker.c>
StartServers         2
MaxClients         150
MinSpareThreads     25
MaxSpareThreads     75 
ThreadsPerChild     25
MaxRequestsPerChild  0
</IfModule>



free -m
             total       used       free     shared    buffers     cached
Mem:           768        352        415          0          0         37
-/+ buffers/cache:        315        452
Swap:            0          0          0



top - 11:03:54 up 41 days, 11:53,  1 user,  load average: 0.05, 0.03, 0.00 …

我正在使用geotools从shapefile中提取数据并将它们存储到mysql中.我的应用程序一直在工作,但我经常得到这个锁,我无法理解为什么,因为它仍然有效

[root@website-qc filespool]# /usr/bin/java -jar /opt/mcmap/library/Application/geotools/mcgeotools.jar -t publisher -i 1/194/Namibia_SCLB12.shp -rid 12 -s
app get cmd option cast to int: 12
app passing region id to runconvert: 12
runconvert rid passed: 12
Jul 9, 2012 4:23:48 PM org.geotools.data.db2.DB2DataStoreFactory isAvailable
INFO: DB2 driver found: true
Database connection acquired
Coordinates length: 5390
Coordinates length: 5358
Coordinates length: 9932
Jul 9, 2012 4:28:14 PM org.geotools.data.shapefile.ShpFiles logCurrentLockers
SEVERE: The following locker still has a lock? read on file:/opt/mcmap/public/filespool/1/194/Namibia_SCLB12.prj by org.geotools.data.shapefile.prj.PrjFileReader
 it was created with …

如果您在IE 10中检查固定列在向下滚动时不与主体行对齐,当您从右向下滚动时,固定列不与主体对齐.

我试过玩下面的css,但它不起作用.它可能是桌子上的边框和衬垫吗？

.DTFC_LeftBodyLiner{
    top: 2px !important;
}

的jsfiddle

UPDATE

我没有scrollx/y和固定列更新它.但是浮动标题仍然没有对齐

使用@Dekel代码更新

https://jsfiddle.net/a1mrp2k8/1/缩放标题列时删除行

我的动作文件中有以下动作。

import axios from 'axios';
import $ from 'jquery';
var CancelToken = axios.CancelToken;
var source = CancelToken.source();

export const FETCH_WORKERJOBS = 'fetch_workerjobs';

export function fetchWorkerJobs(page, size, where, sort) {
    const request = axios.get(`/api/user/report/comms/matrix/upload/format/json?quiet=1&page=`+page+`&size=`+size+`&where=`+JSON.stringify(where)+`&sort=`+sort,{cancelToken: source.token});   
    return {
        type: FETCH_WORKERJOBS,
        payload: request
    };
}

export const FETCH_WORKERJOBS_COUNT = 'fetch_workerjobs_count';

export function fetchWorkerJobsCount(where) {
    const request = axios.get(`/api/user/report/comms/matrix/upload/count/format/json?quiet=1&where=`+JSON.stringify(where), {cancelToken: source.token});  
    return {
        type: FETCH_WORKERJOBS_COUNT,
        payload: request
    };
}

cancel将函数导入组件时如何访问令牌以取消

import _ from 'lodash';
import React, { Component } from 'react';
import { …

我正在尝试使用 js 类型的 luxon 时间对象。我不确定这是否如排序所期望的那样正确-1,0,1

const results  = objectGroupedByYearMonth[year][month].results.sort(
          (a,b) => 
            DateTime.fromISO(b.created)
              .diff(DateTime.fromISO(a.created))
        )

这将返回一个 dt 对象console.log("DIF: ", DateTime.fromISO("2020-11-03T17:01:22.205041Z") .diff(DateTime.fromISO("2020-11-03T17:15:23.998284Z")))

我正在尝试在componentDidMount. 尝试不同的解决方案，但总是陷入死胡同。目前我有

成分

    import React, { Component } from 'react';
import Seatmap from 'react-seatmap';
import '../../style/main.scss';
import seats from '../../seatData';
import Ticket from '../Ticket';

class Booking extends Component {

  constructor(props){
    super(props);

    this.state = {
      row: null,
      number: null,
      data: [],
      selected: null,
      isLoaded: false
    }

    this.addSeatCallback = this.addSeatCallback.bind(this);
    this.removeSeatCallback = this.removeSeatCallback.bind(this);
  }

  controller = new AbortController();

  async fetchData() {
    await fetch(window.location.protocol + window.location.hostname,{
      signal: this.controller.signal
    })
      .then(res => seats)
      .then(
        (result) => {
          this.setState({
            isLoaded: true,
            data: this.formatSeatData(result) …

我查看了迁移指南https://webpack.js.org/migrate/5/但很难理解我需要更改什么。以下是我得到的错误

[webpack-cli] Invalid configuration object. Webpack has been initialized using a configuration object that does not match the API schema.
 - configuration.module.rules[1].exclude has an unknown property 'test'. These properties are valid:
   object { and?, not?, or? }
 - configuration.node should be one of these:
   false | object { __dirname?, __filename?, global? }
   -> Include polyfills or mocks for various node stuff.
   Details:
    * configuration.node has an unknown property 'Buffer'. These properties are valid:
      object { __dirname?, __filename?, global? …

我使用https://docs.aws.amazon.com/AmazonS3/latest/userguide/ManageCorsUsing.html在 s3 上设置 CORS 。在我的网站上，我使用ckeditor上传图像并将其发送到 s3。问题是，POST有效但GET无效。失败了

跨域资源策略

要从不同的源使用此资源，服务器需要在响应标头中指定跨源资源策略：

Cross-Origin-Resource-Policy: same-site 如果资源和文档由同一站点提供，请选择此选项。

Cross-Origin-Resource-Policy: cross-origin 仅当包含此资源的任意网站不会带来安全风险时才选择此选项。

来自 GET 的响应

Accept-Ranges: bytes
Content-Length: 90105
Content-Type: image/png
Date: Wed, 12 May 2021 16:44:33 GMT
ETag: "3524cdaa5d0975c249bb464033808244"
Last-Modified: Wed, 12 May 2021 16:44:33 GMT
Server: AmazonS3
...
x-amz-id-2: pNoskXKWXhpCbwArHgIN4kVD+oO8Pyq/3PIJAEcSJCo3hWMmHVspn2mIjfItCFAM+jUXtcN3pqY=
x-amz-request-id: 3BEE5J8RQPCXTQ93

我在 apache 服务器上设置了以下内容

Header set Content-Security-Policy "default-src 'self' *.s3.amazonaws.com *.uatdomainplus.com *.qadomainplus.com *.hci.com hci.com ; font-src *.typekit.net cdnjs.cloudflare.com fonts.gstatic.com *.hcidomain.plus *.uatdomainplus.com *.qadomainplus.com ; img-src 'self' data: *.s3.amazonaws.com; style-src …

我正在尝试查询服务器以获取导航项列表,以便我可以在init上构建我的菜单.到目前为止,我已设法在主页上创建一个包含3个内容的静态页面,其中包括标题,侧边栏和内容.侧边栏是不同类型用户的菜单,因此我需要在加载时检索菜单项.

我收到的错误是

只能更新已安装或安装的组件.这通常意味着您在已卸载的组件上调用了setState,replaceState或forceUpdate.这是一个无操作

更新4

所以我将我的api请求移动到index.js文件并尝试添加注释中提到的条件.现在它只是呈现Loading...相同的错误

    import React, { Component } from 'react';
import ReactDOM from 'react-dom';
import 'core-js/fn/promise';

import SideBar from './components/sidebar';
import Header from './components/header';
import HomeContent from './components/home';


function getJSON(url) {
  return get(url).then(JSON.parse);
}

function get(url) {
  // Return a new promise.
  return new Promise(function(resolve, reject) {
    // Do the usual XHR stuff
    var req = new XMLHttpRequest();
    req.open('GET', url);

    req.onload = function() {
      // This is called even on 404 etc …

我正在尝试更新在别处触发的事件的选项列表。我已经保存了状态中的选项，当我有更新的列表时，我 setState 会触发渲染，但选择框不显示更新的列表

    constructor(props) {
        super(props);
        this.renderSelectField = this.renderSelectField.bind(this);
        this.renderTextField = this.renderTextField.bind(this);
        this.updateCommsMatrix = this.updateCommsMatrix.bind(this);
        this.renderSelect2Field = this.renderSelect2Field.bind(this);
        this.clearValue = this.clearValue.bind(this);
        this.updateValue = this.updateValue.bind(this);
        this.meta = {
            title: 'Request Exemption',
            description: 'This section allows you to request an exemption'
        };
        this.runOnce = false;
        this.state = {
            loaded: false,
            searchable: true,
            selectValue: 0,
            clearable: true,
            rtl: false,
            options: [
                { value: 0, label: 'All'}
                ]
        };
        this.exemptionType = {};
        this.markets = {};
        this.serviceDomain = {};
        this.servicesList = {};
        this.matrices = {}; …