-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.html
1236 lines (802 loc) · 43.2 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=2">
<meta name="theme-color" content="#222">
<meta name="generator" content="Hexo 4.2.0">
<link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16.png">
<link rel="mask-icon" href="/images/logo.svg" color="#222">
<link rel="stylesheet" href="/css/main.css">
<link rel="stylesheet" href="/lib/font-awesome/css/font-awesome.min.css">
<script id="hexo-configurations">
var NexT = window.NexT || {};
var CONFIG = {"hostname":"www.deanwangpro.com","root":"/","scheme":"Pisces","version":"7.8.0","exturl":false,"sidebar":{"position":"left","display":"post","padding":18,"offset":12,"onmobile":false},"copycode":{"enable":false,"show_result":false,"style":null},"back2top":{"enable":true,"sidebar":false,"scrollpercent":false},"bookmark":{"enable":false,"color":"#222","save":"auto"},"fancybox":false,"mediumzoom":false,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"algolia":{"hits":{"per_page":10},"labels":{"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}},"localsearch":{"enable":false,"trigger":"auto","top_n_per_article":1,"unescape":false,"preload":false},"motion":{"enable":false,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}}};
</script>
<meta name="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
<meta property="og:type" content="website">
<meta property="og:title" content="大名Dean鼎">
<meta property="og:url" content="http://www.deanwangpro.com/index.html">
<meta property="og:site_name" content="大名Dean鼎">
<meta property="og:description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
<meta property="og:locale" content="en_US">
<meta property="article:author" content="Dean Wang">
<meta name="twitter:card" content="summary">
<link rel="canonical" href="http://www.deanwangpro.com/">
<script id="page-configurations">
// https://hexo.io/docs/variables.html
CONFIG.page = {
sidebar: "",
isHome : true,
isPost : false,
lang : 'en'
};
</script>
<title>大名Dean鼎</title>
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-69554053-1"></script>
<script>
if (CONFIG.hostname === location.hostname) {
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-69554053-1');
}
</script>
<noscript>
<style>
.use-motion .brand,
.use-motion .menu-item,
.sidebar-inner,
.use-motion .post-block,
.use-motion .pagination,
.use-motion .comments,
.use-motion .post-header,
.use-motion .post-body,
.use-motion .collection-header { opacity: initial; }
.use-motion .site-title,
.use-motion .site-subtitle {
opacity: initial;
top: initial;
}
.use-motion .logo-line-before i { left: initial; }
.use-motion .logo-line-after i { right: initial; }
</style>
</noscript>
<link rel="alternate" href="/atom.xml" title="大名Dean鼎" type="application/atom+xml">
</head>
<body itemscope itemtype="http://schema.org/WebPage">
<div class="container">
<div class="headband"></div>
<header class="header" itemscope itemtype="http://schema.org/WPHeader">
<div class="header-inner"><div class="site-brand-container">
<div class="site-nav-toggle">
<div class="toggle" aria-label="Toggle navigation bar">
<span class="toggle-line toggle-line-first"></span>
<span class="toggle-line toggle-line-middle"></span>
<span class="toggle-line toggle-line-last"></span>
</div>
</div>
<div class="site-meta custom-logo">
<a href="/" class="brand" rel="start">
<span class="logo-line-before"><i></i></span>
<h1 class="site-title">大名Dean鼎</h1>
<span class="logo-line-after"><i></i></span>
</a>
<a>
<img class="custom-logo-image" src="/images/logo-asksource.png" alt="大名Dean鼎">
</a>
</div>
<div class="site-nav-right">
<div class="toggle popup-trigger">
</div>
</div>
</div>
<nav class="site-nav">
<ul id="menu" class="menu">
<li class="menu-item menu-item-home">
<a href="/" rel="section"><i class="fa fa-fw fa-home"></i>Home</a>
</li>
<li class="menu-item menu-item-archives">
<a href="/archives/" rel="section"><i class="fa fa-fw fa-archive"></i>Archives</a>
</li>
</ul>
</nav>
</div>
</header>
<div class="back-to-top">
<i class="fa fa-arrow-up"></i>
<span>0%</span>
</div>
<main class="main">
<div class="main-inner">
<div class="content-wrap">
<div class="content index posts-expand">
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2020/04/12/spring-retry-with-tx/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2020/04/12/spring-retry-with-tx/" class="post-title-link" itemprop="url">MySQL死锁与Spring事务</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2020-04-12 00:00:00" itemprop="dateCreated datePublished" datetime="2020-04-12T00:00:00+08:00">2020-04-12</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2020-04-13 10:05:12" itemprop="dateModified" datetime="2020-04-13T10:05:12+08:00">2020-04-13</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2020/04/12/spring-retry-with-tx/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2020/04/12/spring-retry-with-tx/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>MySQL死锁从产品之初就偶有发生，算是萦绕在心中的噩梦之一。由于死锁大都伴随着锁等待，所以一般都会拉低服务QPS，在死锁发生时肯定会出现各种意料不到的问题。前期一直采用“指标不治本”的办法，对特别容易产生死锁的方法增加retry。但当retry和事务嵌套在一起时也会出现不可预知的错误。</p>
<p>对于数据库死锁这个万恶之源，真可谓深恶痛绝，所以这次在解决retry和事务嵌套问题时，将这个元凶也一并解决。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2020/04/12/spring-retry-with-tx/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2020/02/22/oom-address/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2020/02/22/oom-address/" class="post-title-link" itemprop="url">Full GC (Allocation Failure) 引发的应用僵死</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2020-02-22 00:00:00" itemprop="dateCreated datePublished" datetime="2020-02-22T00:00:00+08:00">2020-02-22</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2020-03-08 23:38:46" itemprop="dateModified" datetime="2020-03-08T23:38:46+08:00">2020-03-08</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2020/02/22/oom-address/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2020/02/22/oom-address/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>距离上次博文已经有快半年了。原本打算在过年期间写一篇2019年的回顾和总结。但也被这突如其来的疫情打乱。放假期间一直关注相关新闻导致信息过载，一度非常沮丧。</p>
<p>2月复工以后，停止了疫情信息的摄取，反倒心理上轻松不少。人都是健忘的，可不是吗？</p>
<p>言归正传，上篇博文说遇到一个服务假死的问题，具体现象就是服务不再接收任何请求，客户端会抛出Broken Pipe。正好最近又重现了，并且找到了root cause。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2020/02/22/oom-address/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/07/28/zombie-thread-trouble-shooting/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/07/28/zombie-thread-trouble-shooting/" class="post-title-link" itemprop="url">记录一次Spring Boot假死诊断</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-07-28 00:00:00" itemprop="dateCreated datePublished" datetime="2019-07-28T00:00:00+08:00">2019-07-28</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2019-07-30 20:40:11" itemprop="dateModified" datetime="2019-07-30T20:40:11+08:00">2019-07-30</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/07/28/zombie-thread-trouble-shooting/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/07/28/zombie-thread-trouble-shooting/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>这两天遇到一个服务假死的问题，具体现象就是服务不再接收任何请求，客户端会抛出Broken Pipe。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/07/28/zombie-thread-trouble-shooting/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/07/07/benifit-from-spring-config/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/07/07/benifit-from-spring-config/" class="post-title-link" itemprop="url">怎么用好Spring Config</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-07-07 00:00:00" itemprop="dateCreated datePublished" datetime="2019-07-07T00:00:00+08:00">2019-07-07</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2019-07-19 16:14:36" itemprop="dateModified" datetime="2019-07-19T16:14:36+08:00">2019-07-19</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/07/07/benifit-from-spring-config/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/07/07/benifit-from-spring-config/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>配置其实分为结构和内容两个方面，结构对应的是代码，比如1.0.0新开发的代码上有一个功能开关<code>${feature.switchA}</code>，但master上还没有，这就是结构的变化。另一方面是内容，1.0.0的开发分支有两个测试环境，连着不同的数据库，那么对应的<code>${mysql.url}</code>的内容肯定不同。</p>
<p>内容的类别上也可以分为三种：业务配置，功能开关，服务配置。</p>
<p>Spring Cloud的配置中心是Spring Config，经过两年的使用，发现了其中不少的问题，有些是使用问题，有些是Spring Config本身的管理能力导致的问题。</p>
<p>Spring Config首推基于git的管理方式，提供了两个管理维度，一个是label(即branch)，一个是profile。当服务foo在一套代码下要安装多套环境，比如预发布环境有2套，一套在shanghai机房，一套在beijing机房。那么比较自然的管理维度就是利用profile，foo-shanghai.yaml以及foo-beijing.yaml。当生产环境也依然需要2台时，怎么处理呢？这时候就会有两种做法，一种利用增加label维度做区分，一种依然只用profile。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/07/07/benifit-from-spring-config/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/05/31/github-webhook/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/05/31/github-webhook/" class="post-title-link" itemprop="url">类似Github的webhook实现</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-05-31 00:00:00 / Modified: 11:05:49" itemprop="dateCreated datePublished" datetime="2019-05-31T00:00:00+08:00">2019-05-31</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/05/31/github-webhook/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/05/31/github-webhook/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>Webhook是一种非常强大的推送机制，如果熟悉WordPress的同学可以类比构建WP生态的各类钩子函数。Githubt通过webhook让开发人员可以监听仓库的变化触发持续集成工具的运作，比如Travis CI。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/05/31/github-webhook/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/04/19/microservice-practice/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/04/19/microservice-practice/" class="post-title-link" itemprop="url">小团队微服务落地实践</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-04-19 00:00:00 / Modified: 21:00:21" itemprop="dateCreated datePublished" datetime="2019-04-19T00:00:00+08:00">2019-04-19</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/04/19/microservice-practice/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/04/19/microservice-practice/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>我们的产品是一个客户数据平台。产品的一个重要部分类似企业版的”捷径”，让运营人员可以像搭乐高积木一样创建企业的自动化流程，无需编程即可让数据流动起来。从这一点上，我们的业务特点就是聚少成多，把一个个服务连接起来就成了数据的海洋。理念上跟微服务一致，一个个独立的小服务最终实现大功能。当然我们一开始也没有使用微服务，当业务还未成型就开始考虑架构，那么就是”过度设计”。另一方面需要考虑的因素就是”人”，有没有经历过微服务项目的人，团队是否有devops文化等等，综合考量是否需要微服务化。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/04/19/microservice-practice/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/04/16/slb-real-ip/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/04/16/slb-real-ip/" class="post-title-link" itemprop="url">坑系列之阿里SLB上获取客户IP</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-04-16 00:00:00" itemprop="dateCreated datePublished" datetime="2019-04-16T00:00:00+08:00">2019-04-16</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2019-04-19 20:55:03" itemprop="dateModified" datetime="2019-04-19T20:55:03+08:00">2019-04-19</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/04/16/slb-real-ip/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/04/16/slb-real-ip/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>好久没更新了，正好上周遇到一个获取不到客户端IP的BUG，开发环境用nginx做反代都是work的。上到生产环境就获取不到。思来想去就是生产上多了一个SLB负载均衡。但这是一个老的功能，之前也都是好的，突然就拿的不对了，非常之诡异。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/04/16/slb-real-ip/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/02/18/road-of-microservice/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/02/18/road-of-microservice/" class="post-title-link" itemprop="url">小团队的微服务之路</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-02-18 00:00:00 / Modified: 16:17:36" itemprop="dateCreated datePublished" datetime="2019-02-18T00:00:00+08:00">2019-02-18</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/02/18/road-of-microservice/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/02/18/road-of-microservice/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>微服务是否适合小团队是个见仁见智的问题。回归现象看本质，随着业务复杂度的提高，单体应用越来越庞大，就好像一个类的代码行越来越多，分而治之，切成多个类应该是更好的解决方法，所以一个庞大的单体应用分出多个小应用也更符合这种分治的思想。当然微服务架构不应该是一个小团队一开始就该考虑的问题，而是慢慢演化的结果，谨慎过度设计尤为重要。</p>
<p>公司的背景是提供SaaS服务，对于大客户也会有定制开发以及私有化部署。经过2年不到的时间，技术架构经历了从单体到微服务再到容器化的过程。</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/02/18/road-of-microservice/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2019/02/02/spring-boot-cloud-geenwich-upgrade/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2019/02/02/spring-boot-cloud-geenwich-upgrade/" class="post-title-link" itemprop="url">Spring Boot 2.1.2 & Spring Cloud Greenwich 升级记录</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2019-02-02 00:00:00" itemprop="dateCreated datePublished" datetime="2019-02-02T00:00:00+08:00">2019-02-02</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2019-03-20 12:15:15" itemprop="dateModified" datetime="2019-03-20T12:15:15+08:00">2019-03-20</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2019/02/02/spring-boot-cloud-geenwich-upgrade/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2019/02/02/spring-boot-cloud-geenwich-upgrade/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>节前没有新业务代码，正好Greenwich刚发布，于是开始为期四天的框架代码升级。</p>
<p>之前的版本是 spring boot 1.5.10 , spring cloud Edgware.SR3</p>
<!--noindex-->
<div class="post-button">
<a class="btn" href="/2019/02/02/spring-boot-cloud-geenwich-upgrade/#more" rel="contents">
Read more »
</a>
</div>
<!--/noindex-->
</div>
<footer class="post-footer">
<div class="post-eof"></div>
</footer>
</article>
<article itemscope itemtype="http://schema.org/Article" class="post-block" lang="en">
<link itemprop="mainEntityOfPage" href="http://www.deanwangpro.com/2018/10/04/rabbitmq-performance/">
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
<meta itemprop="image" content="/images/avatar-cartoon.jpg">
<meta itemprop="name" content="Dean Wang">
<meta itemprop="description" content="Software Engineer Java, PHP, VueJs and more, techie, Music & Movie lover, Photography junkee">
</span>
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
<meta itemprop="name" content="大名Dean鼎">
</span>
<header class="post-header">
<h2 class="post-title" itemprop="name headline">
<a href="/2018/10/04/rabbitmq-performance/" class="post-title-link" itemprop="url">Rabbitmq的性能测试</a>
</h2>
<div class="post-meta">
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-o"></i>
</span>
<span class="post-meta-item-text">Posted on</span>
<time title="Created: 2018-10-04 00:00:00" itemprop="dateCreated datePublished" datetime="2018-10-04T00:00:00+08:00">2018-10-04</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-calendar-check-o"></i>
</span>
<span class="post-meta-item-text">Edited on</span>
<time title="Modified: 2018-10-05 11:30:14" itemprop="dateModified" datetime="2018-10-05T11:30:14+08:00">2018-10-05</time>
</span>
<span class="post-meta-item">
<span class="post-meta-item-icon">
<i class="fa fa-comment-o"></i>
</span>
<span class="post-meta-item-text">Disqus: </span>
<a title="disqus" href="/2018/10/04/rabbitmq-performance/#disqus_thread" itemprop="discussionUrl">
<span class="post-comments-count disqus-comment-count" data-disqus-identifier="2018/10/04/rabbitmq-performance/" itemprop="commentCount"></span>
</a>
</span>
</div>
</header>
<div class="post-body" itemprop="articleBody">
<p>在做系统的整体性能测试时发现经常会卡在一个较低的QPS（单机低于100）数值，而且应用服务器的负载不高，检查MQ消费速率只有40左右。接着把目标放在消息发送端上，发现消息发送速率很低，大约40条/s。</p>
<p>果断搭建一个最小化工程单测Rabbitmq发送性能，发现在启用发送端事务后性能下降非常明显。</p>
<table>
<thead>
<tr>
<th>消息数量</th>
<th>开启事务</th>
<th>未开启事务</th>
</tr>
</thead>
<tbody><tr>
<td>10w</td>
<td>320796ms</td>
<td>10246ms</td>
</tr>