[{"data":1,"prerenderedAt":207},["ShallowReactive",2],{"options":3,"friend-links":4,"recent-articles":35,"recent-comments":108},{},[5,10,15,20,25,30],{"name":6,"id":7,"avatar":8,"url":9},"张晓强",60,"http://v7.jimxu.cn/typora/image-20201202164215888.png","https://zhangxiaoqiang.top",{"name":11,"id":12,"avatar":13,"url":14},"生如夏花",62,"http://v7.jimxu.cn/typora/123.png","https://lcl888.top/",{"name":16,"id":17,"avatar":18,"url":19},"康存华",63,"http://v7.jimxu.cn/typora/gsyy.png","https://kangcunhua.com",{"name":21,"id":22,"avatar":23,"url":24},"怜悯",64,"http://v7.jimxu.cn/typora/1152732.png","http://www.lxcwang.com/",{"name":26,"id":27,"avatar":28,"url":29},"文小健",65,"http://v7.jimxu.cn/typora/cat.png","https://wenxiaojian.github.io/",{"name":31,"id":32,"avatar":33,"url":34},"hippomedon",66,"http://v7.jimxu.cn/typora/img-31d55402a3b53260d54eb4d18df337cd.jpg","https://hippomedon.gitee.io/",{"total":36,"current":37,"pages":38,"size":39,"records":40},20,1,4,6,[41,55,66,77,87,98],{"cid":42,"title":43,"titlePic":44,"slug":43,"created":45,"modified":46,"content":47,"authorId":48,"type":49,"status":50,"tags":51,"categories":52,"thumb":53,"hits":48,"commentsNum":48,"allowComment":54,"allowPing":54,"allowFeed":54},85,"测试","//v7.jimxu.cn/340fc731ea5e4c128e5261a71fc0963b.png",1773673157,1773674900,"# 测试\n## 测试\n### 测试\n测试",0,"post","publish","整合","Other",null,true,{"cid":56,"title":57,"titlePic":58,"slug":59,"created":60,"modified":61,"content":62,"authorId":37,"type":49,"status":50,"tags":63,"categories":64,"thumb":53,"hits":65,"commentsNum":37,"allowComment":54,"allowPing":53,"allowFeed":53},84,"pgsql批量插入更新非常慢的问题记录","//v7.jimxu.cn/upload/2024/10/0hd7gmdfmegas0hd7gmdfmegas.png","使用kettle往pgsql插入更新数据非常慢的问题排查记录",1730284348,1772979618,"# pgsql批量插入更新非常慢的问题记录\r\n\r\n问题：kettle往pgsql插入更新，数据非常慢，只有几条每秒，但是网速，磁盘，表的字段长度，索引，都是正常的。\r\n原因：pgsql统计信息过时，并没有更新索引查询，执行ANALYZE table后正常\r\npln_act_his表执行删除插入更新数据非常慢的排查分析\r\n\r\n---\r\n我的排查记录大概如下，记录一下，下次遇到好直接找到问题\r\n\r\n检查现有索引：SELECT * FROM pg_indexes WHERE tablename = 'pln_act_his';\r\n发现已经有相关字段的索引\r\nCREATE INDEX add_index ON ods_mes.pln_act_his USING btree (vcl_id, plt_cd, shp, ln_cd, tp_cd)\r\n\r\n---\r\n\r\n查询删除插入更新的sql语句分析\r\nEXPLAIN  DELETE FROM ods_mes.pln_act_his\r\nWHERE vcl_id = 'JA023830026' AND   plt_cd = 'J' AND   shp = 'W' AND   ln_cd = '1' AND   tp_cd = '40'\r\n\r\n---\r\n发现返回的Seq Scan on pln_act_his，代表没有走索引，顺序查询\r\n\r\n执行统计信息更新：ANALYZE ods_mes.pln_act_his;\r\n\r\n然后再次尝试\r\nEXPLAIN  DELETE FROM ods_mes.pln_act_his\r\nWHERE vcl_id = 'JA023830026' AND   plt_cd = 'J' AND   shp = 'W' AND   ln_cd = '1' AND   tp_cd = '40'\r\n\r\n---\r\n发现返回Index Scan using add_index on pln_act_his 代表已经走了add_index索引\r\n再次执行kettle脚本任务，发现数据拉取速度提升巨大","pgsql,数据库","默认分类",196112,{"cid":67,"title":68,"titlePic":69,"slug":70,"created":71,"modified":72,"content":73,"authorId":37,"type":49,"status":50,"tags":74,"categories":75,"thumb":53,"hits":76,"commentsNum":37,"allowComment":54,"allowPing":53,"allowFeed":53},79,"No Route To Host错误","//v7.jimxu.cn/upload/2023/02/error.png"," 起因是一个项目最近安全维护，需要加密传输数据，需要由之前的http传输改为https传输，想着这还不简单吗，加个证书认证就是了，本地调试，完美的很。可是升级正式的时候，一调接口，java.net.NoRouteToHostException,",1677117206,1772978991,"# No Route To Host\r\n记一次令人折磨的报错\r\n\r\n首先开门见山，百度上有太多关于这个错误的解决方案，我这个只是特殊的\r\n绝大多数都是防火墙引起的，关掉或开放端口即可\r\n我这个是因为jvm参数导致的\r\n\r\n\r\n起因是一个项目最近安全维护，需要加密传输数据，需要由之前的http传输改为https传输，想着这还不简单吗，加个证书认证就是了，本地调试，完美的很。可是升级正式的时候，一调接口，java.net.NoRouteToHostException,但是我本地的网络跟服务器网络一致呀，于是我就ping接口的服务器，通了，然后telnet测试https端口，居然也通了，然后curl接口地址，居然还有返回值，真的折磨人，以为是打包的问题，然后我在我自己电脑上的tomcat上跑，完美运行，因为正式服务器是用的阿里中台，不是原生的tomcat，我就去服务器重新安装了一个tomcat，也能运行，那问题肯定出在中台了，可是中台的人说，不会对请求网络有任何的控制，找了大半天也找不到原因，最后找到了错误的原因，jvm参数上指定了https代理服务器，只要是https请求，都会通过代理服务器转发，可是代理服务器早就没用了，端口都没开，怪不得报这个错\r\n![](//v7.jimxu.cn/upload/2023/02/rrfoami6siiilrrfoami6siiil.png)\r\n删掉重启即可\r\n","JAVA,Exception","JAVA,Spring",304193,{"cid":78,"title":79,"titlePic":80,"slug":81,"created":82,"modified":83,"content":84,"authorId":37,"type":49,"status":50,"tags":85,"categories":52,"thumb":53,"hits":86,"commentsNum":37,"allowComment":54,"allowPing":53,"allowFeed":53},78,"Blog-Travel in May","//v7.jimxu.cn/upload/2022/05/po3267do20jbopo3267do20jbo.jpg","有趣的人生，一半是山川湖海",1652791944,1772978994,"# Blog-Travel in May\r\n\r\n\r\n    有趣的人生，一半是山川湖海       ——JimXu\r\n\r\n------------\r\n前言：已经半年多的时间没有更新过博客了，意识到自己确实懒了一点，没办法，对于技术相关的文章，我是真的写不下去，花费大半天时间写完一篇文章，在网上一看，到处都是，而且还比我写的好的多，确实不知道该怎么进行下去。但是现在想好了，不管写什么文章，我得写啊，不然博客拿来干嘛，虽然技术文章写不走，我得把其他类型的文章写着走呀。\r\n\r\n五一小长假，约上了几个朋友，自驾了川西小环线，非常的流连忘返，已经开始期待川西大环线了😆\r\n\r\n第一天直接奔着海螺沟冰川森林公园去的，然后乘坐摆渡车1个半小时才到山顶，山下大太阳，穿短袖，山上全是雪，穿羽绒服，眼睛都被雪弄得睁不开眼，还好在山下买了墨镜的，如果条件允许，最好买个好点的鞋套，可以下雪地踩雪（我朋友买了个10元的鞋套，走了没有50m就坏掉了😑）\r\n![](//v7.jimxu.cn/upload/2022/05/ueu8st902qhtgueu8st902qhtg.jpg)\r\n感受一下吧\r\n![](//v7.jimxu.cn/upload/2022/05/oeaj9hac0qg8voeaj9hac0qg8v.jpg)\r\n喝口水\r\n![](//v7.jimxu.cn/upload/2022/05/s78v2hlv2cjobs78v2hlv2cjob.jpg)\r\n\r\n------------\r\n\r\n5点就有保安来喊下山了，因为下山也还要坐1个半小时的车呢，下了山直接奔康定民宿去了\r\n第二天的第一站是加呷呐的红海子，这个地方是我本次旅行最喜欢的一个地方，因为以最低的成本欣赏了最美的风景，如果有机会，应该还回去。\r\n\r\n![](//v7.jimxu.cn/upload/2022/05/57qjr3debkjv757qjr3debkjv7.jpg)\r\n与雪人合影，这个是从视频里截的图，所以画质感人\r\n![](//v7.jimxu.cn/upload/2022/05/vlutro2794hdsvlutro2794hds.jpg)\r\n这地方真不错\r\n\r\n然后目的地是塔公草原，结果半路被折多山拐跑了，看着折多山人还挺多，也挺不错，于是\r\n![](//v7.jimxu.cn/upload/2022/05/7lt495bhmeggf7lt495bhmeggf.jpg)\r\n打卡318国道\r\n![](//v7.jimxu.cn/upload/2022/05/6oilrutitgikj6oilrutitgikj.jpg)\r\n折多山的半山腰，别问为什么不上去，因为海拔已经4000+了，真挺累\r\n\r\n然后继续走塔公草原，可惜的是草原的草还没有长出来的样子，加上折多山的停留，就继续前往下一个目的地了，那就是墨石公园，拍照还是挺好看的，但是实际游玩体验并没有多好\r\n![](//v7.jimxu.cn/upload/2022/05/o3ua8cmnlkg8go3ua8cmnlkg8g.jpg)\r\n挺好一黑石头\r\n\r\n最后晚上去了小金县开鹏宾馆（好评），我把名字都打出来了，200+的价格，4个房间，6张床，有客厅，有厨房，甚至还有麻将机，然后愉快的搓起了麻将。\r\n第三天就直接返程了，因为小金县到重庆就要8个小时了，确实没得时间，成都的朋友还去了四姑娘山\r\n\r\n\r\n总的来说，加呷呐给我的感觉最好，海螺沟主要坐摆渡车都是3个小时，然后价格也贵，上去后还要买票观光车才能往上走，或者直接买索道票坐上去，但是这次旅行还是挺快乐的，respect！","旅行",265862,{"cid":88,"title":89,"titlePic":90,"slug":91,"created":92,"modified":93,"content":94,"authorId":37,"type":49,"status":50,"tags":95,"categories":52,"thumb":53,"hits":96,"commentsNum":97,"allowComment":54,"allowPing":53,"allowFeed":53},77,"我的电脑被勒索病毒攻击啦！！！！","//v7.jimxu.cn/images/2021-08-30-title.jpg","由于我开了frp内网穿透，想在家远程办公室电脑，而办公室的电脑密码又非常简单，被黑客扫了，然后放上了勒索病毒，这已经是第三次被搞了，还是不长记性，哎。。。",1630324188,1772979345,"# 我的电脑被勒索病毒攻击了\r\n事情是这样的，我新买了个腾讯云5M带宽的无忧主机，想着拿这主机怎么也要用起来，看着向日葵这带宽，就想着自己弄一个内网穿透。\r\n折腾了半天，frp是弄好了，也能远程了，还把数据库都内网穿透出去了(还好数据库密码不简单)，因为电脑用户名是administrator，密码是qwer的原因，晚上就被黑客扫描到了。\r\n\r\n第二天，电脑打不开了，密码怎么都不对，我以为我朋友恶作剧把密码改了，我就插上u盘进pe，把密码改回来了，我完全没有意识到这件事情的严重性，改了密码，U盘没有拔掉，进入桌面，所有的文件都是.devos的后缀![](https://v7.jimxu.cn/images/2021-08-30-1.jpg),看了一下，不止桌面，所有磁盘都变成.devos了，然后就想着遭了也没办法，重装系统把，可是由于没拔u盘，u盘的所有文件也都变成.devos了，这是最恼火的啊，我重装系统都不得行了![](https://v7.jimxu.cn/images/2021-08-30-2.png)\r\n\r\n找了个数据恢复的问了一下，恢复数据要4万5，我感觉我去联系helpbackup@email.tg都要不到4万5哦![](https://v7.jimxu.cn/images/2021-08-30-3.png)\r\n\r\n最后借了一个u盘全盘格式化了，重装了系统。\r\n\r\n\r\n还是要提高安全意识啊，不能作死！！！！！！！！！！","病毒",249138,2,{"cid":99,"title":100,"titlePic":101,"slug":102,"created":103,"modified":104,"content":105,"authorId":37,"type":49,"status":50,"tags":106,"categories":52,"thumb":53,"hits":107,"commentsNum":48,"allowComment":54,"allowPing":53,"allowFeed":53},76,"网站更新啦","//v7.jimxu.cn/upload/2021/01/poj70le3iogsmpoj70le3iogsm.png","2020年1月2日，我终于把新博客写完了，马上就部署上去和大家见面啦  可惜的是，手机的css还没做，慢慢来吧，哎哟喂",1609593406,1772978487,"# 网站更新啦\r\n\r\n2020年1月2日，我终于把新博客写完了，马上就部署上去和大家见面啦\r\n\r\n可惜的是，手机的css还没做，慢慢来吧，哎哟喂\r\n\r\n\r\n\r\n旧版遗照\r\n\r\n![image-20210102200253104](http://v7.jimxu.cn/typora/image-20210102200253104.png)\r\n\r\n\r\n\r\n新版帅照\r\n\r\n![image-20210102200326087](http://v7.jimxu.cn/typora/image-20210102200326087.png)\r\n\r\n献丑啦，哈哈哈","博客更新",232910,[109,117,123,130,135,142,149,154,156,162,167,172,183,188,196,203],{"coid":88,"cid":48,"created":110,"author":111,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":113,"agent":112,"content":114,"type":115,"status":116,"parent":53},1717657106,"tianmeng","","218.88.23.190","端午快乐，小伙子，都好久没来看了","未知位置","approved",{"coid":118,"cid":48,"created":119,"author":120,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":121,"agent":112,"content":122,"type":115,"status":116,"parent":53},73,1662099395,"匿名","60.255.166.182","除了吃饭用的Java语言外，也会一点Python，可以做一些简单的爬虫。",{"coid":124,"cid":48,"created":125,"author":126,"authorId":53,"ownerId":53,"mail":127,"url":19,"ip":128,"agent":112,"content":129,"type":115,"status":116,"parent":53},72,1654221207,"Koko","cunhua.kang@foxmail.com","101.204.122.209","端午安康！",{"coid":131,"cid":48,"created":132,"author":120,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":133,"agent":112,"content":134,"type":115,"status":116,"parent":53},70,1646906265,"161.129.45.155","人的痛苦会把自己折磨到多深呢？",{"coid":136,"cid":48,"created":137,"author":138,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":139,"agent":140,"content":141,"type":115,"status":116,"parent":53},67,1626156830,"我会在火车驶出隧道下车","110.191.217.117","//v7.jimxu.cn/upload/2021/07/5h16dtde8midr5h16dtde8midr.jpg","要一直写下去。哦",{"coid":22,"cid":48,"created":143,"author":120,"authorId":53,"ownerId":53,"mail":144,"url":53,"ip":145,"agent":112,"content":146,"type":147,"status":116,"parent":148},1623402033,"977840463@qq.com","45.136.187.104","就是就是","洛杉矶",61,{"coid":17,"cid":48,"created":150,"author":120,"authorId":53,"ownerId":53,"mail":144,"url":53,"ip":151,"agent":112,"content":152,"type":153,"status":116,"parent":148},1623402019,"118.122.96.185","我也觉得","四川成都",{"coid":12,"cid":48,"created":155,"author":120,"authorId":53,"ownerId":53,"mail":144,"url":53,"ip":151,"agent":112,"content":122,"type":153,"status":116,"parent":53},1623401958,{"coid":148,"cid":48,"created":157,"author":120,"authorId":53,"ownerId":53,"mail":158,"url":159,"ip":160,"agent":112,"content":161,"type":153,"status":116,"parent":53},1622855752,"1711764827@qq.com","http://baidu.com","116.169.2.131","好厉害!",{"coid":7,"cid":48,"created":163,"author":164,"authorId":53,"ownerId":53,"mail":158,"url":112,"ip":165,"agent":112,"content":166,"type":153,"status":116,"parent":53},1622710182,"昵称（可不填）","218.89.237.176","请填写信息",{"coid":168,"cid":48,"created":169,"author":16,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":170,"agent":112,"content":171,"type":153,"status":116,"parent":53},59,1622641963,"117.136.82.10","域名已更换http://koko.club:666/",{"coid":173,"cid":48,"created":174,"author":175,"authorId":53,"ownerId":53,"mail":176,"url":177,"ip":178,"agent":179,"content":180,"type":181,"status":116,"parent":182},56,1616229092,"JimXu","woshijimxu@qq.com","https://www.jimxu.cn","112.66.218.225","//v7.jimxu.cn/upload/2021/01/v3bke7lbbui4nv3bke7lbbui4n.png","文老板大气","海南儋州",55,{"coid":182,"cid":48,"created":184,"author":120,"authorId":53,"ownerId":53,"mail":112,"url":112,"ip":185,"agent":186,"content":187,"type":153,"status":116,"parent":53},1616228822,"110.191.216.254","//v7.jimxu.cn/upload/2021/03/rijgf4s6okg60rijgf4s6okg60.jpg","文老板来了",{"coid":189,"cid":48,"created":190,"author":191,"authorId":53,"ownerId":53,"mail":176,"url":177,"ip":192,"agent":193,"content":194,"type":195,"status":116,"parent":53},52,1610611280,"徐万金","202.155.204.35","//v7.jimxu.cn/upload/2021/01/22u0m9uuaoign22u0m9uuaoign.jpg","这是一条来自香港的评论  ~~~HongKong","香港",{"coid":197,"cid":48,"created":198,"author":199,"authorId":53,"ownerId":53,"mail":200,"url":112,"ip":201,"agent":112,"content":202,"type":181,"status":116,"parent":53},41,1610074963,"天梦","2735736530@qq.com","59.50.123.37","天梦大帅比",{"coid":204,"cid":48,"created":205,"author":175,"authorId":53,"ownerId":53,"mail":176,"url":177,"ip":201,"agent":179,"content":206,"type":181,"status":116,"parent":53},40,1610074875,"第一条留言给自己，2021，加油哦！！！",1774152326019]