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		<title>Couchbase 2.0 &#8211; Cannot connect to localhost</title>
		<link>http://mirmirik.net/2013/couchbase-2-0-cannot-connect-to-localhost/</link>
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		<dc:creator><![CDATA[mirmirik]]></dc:creator>
		<pubDate>Sun, 24 Mar 2013 20:33:01 +0000</pubDate>
				<category><![CDATA[Düşünce - Bilim]]></category>
		<category><![CDATA[couchbase]]></category>
		<category><![CDATA[mongodb]]></category>
		<category><![CDATA[nosql]]></category>
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		<guid isPermaLink="false">http://mirmirik.com/?p=1151</guid>

					<description><![CDATA[<p>We&#8217;ve been analysing noSQL world for a while to be able use it in a new project of Nexum. I&#8217;ve seen that could be a good opportunity to go back to the &#8220;software world&#8221; which I loved most in the past and tried to do my own research. First of all, I&#8217;ve downloaded and setup [&#8230;]</p>
<p>The post <a rel="nofollow" href="http://mirmirik.net/2013/couchbase-2-0-cannot-connect-to-localhost/">Couchbase 2.0 &#8211; Cannot connect to localhost</a> appeared first on <a rel="nofollow" href="http://mirmirik.net">mirmirik.net</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>We&#8217;ve been analysing <a title="noSQL Databases" href="http://nosql-database.org/">noSQL world</a> for a while to be able use it in a new project of <a title="neXum Bogazici" href="http://www.nexumbogazici.com.tr/">Nexum</a>. I&#8217;ve seen that could be a good opportunity to go back to the &#8220;software world&#8221; which I loved most in the past and tried to do my own research. First of all, I&#8217;ve downloaded and setup <a title="MongoDB" href="http://www.mongodb.org/">MongoDB</a> on my personal computer running <a title="Ubuntu" href="http://www.ubuntu.com/">Ubuntu</a>(on VM) to see if it fulfills our needs. I did couple of POC by creating test data and trying to play with it via .NET client. After all these years passed by experience on relational database, I&#8217;ve got a little bit confused but that just made me more curious on noSQL(to be honest, somehow, I loved it). After reading couple of best practices online, I gave a shot to <a title="Couchbase" href="http://www.couchbase.com">Couchbase</a>. I&#8217;ve downloaded Windows version from the site and set it up without any problem. But when I tried to connect to server, I&#8217;ve seen the famous -but not as welcoming as it should be- UI of Chrome:</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/cannot_connect.jpg"><img decoding="async" class="aligncenter size-medium wp-image-1103" src="http://mirmirik.com/mirmirFiles/2013/01/cannot_connect-300x90.jpg" alt="Cannot connect to localhost:8091" width="300" height="90" srcset="http://mirmirik.net/mirmirFiles/2013/01/cannot_connect-300x90.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/cannot_connect.jpg 909w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>See? Not an expected response&#8230; I followed the steps to resolve this issue.</p>
<p>1. Probably, there should be a service, and probably it has to be running(Yes, indeed, there is a service and it is running):</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/service_is-_running.jpg"><img decoding="async" class="aligncenter size-medium wp-image-1104" src="http://mirmirik.com/mirmirFiles/2013/01/service_is-_running-300x31.jpg" alt="Service is running" width="300" height="31" srcset="http://mirmirik.net/mirmirFiles/2013/01/service_is-_running-300x31.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/service_is-_running.jpg 639w" sizes="(max-width: 300px) 100vw, 300px" /></a>2. Logically, service listener should be running on a port. I&#8217;ve found <a title="Couchbase portları" href="http://www.couchbase.com/docs/couchbase-manual-2.0/couchbase-network-ports.html">related ports</a> from Couchbase&#8217;s site.</p>
<p>3. Is there any service/deamon running on the port(8091 should have to be busy related with my problem. Only 8092 is being listened at the moment)?</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/ports.jpg"><img decoding="async" class="aligncenter size-medium wp-image-1105" src="http://mirmirik.com/mirmirFiles/2013/01/ports-300x102.jpg" alt="Computer active ports" width="300" height="102" srcset="http://mirmirik.net/mirmirFiles/2013/01/ports-300x102.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/ports.jpg 457w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>P.S.: You can check your active ports by entering following command on DOS command line(Microsoft Windows only)</p>
<p><code>netstat -an -p tcp</code></p>
<p>4. &#8220;localhost&#8221; that I was using is correctly defined as &#8220;127.0.0.1&#8221;. Nothing was wrong with that. I&#8217;ve restarted windows service and checked event viewer. there was no error.</p>
<p>5. I&#8217;ve checked the directory and the files under that Couchbase installed(default is &#8220;C:\Program Files\Couchbase\&#8221; if you&#8217;re using Microsoft Windows). I&#8217;ve found the batch files(.bat) under &#8220;Server\bin&#8221; folder:</p>
<p><code>service_register.bat<br />
service_reregister.bat<br />
service_unregister.bat<br />
service_start.bat<br />
service_stop.bat<br />
</code><br />
6. I&#8217;ve opened &#8220;service_register.bat&#8221;. I was really suprised(and upset with myself) when I see the advanced batch file codes in that file (after 20 years, they seemed really advanced). There was a line in that file as following: <em>for /f &#8220;tokens=1* delims=&#8221; %%a in (&#8216;cmd /q/c &#8220;type bin\ipaddr.out&#8221;&#8216;) do set <strong>IP_ADDR</strong>=%%a</em>. Probably IP_ADDR variable is being set to &#8220;%%a&#8221; according to these weird codes. I figured out that the line just before that is somehow involved to set &#8220;%%a&#8221; variable which is related with the &#8220;ipaddr.out&#8221; file. I&#8217;ve opened in my text editor.</p>
<p>7. The happy ending&#8230; In the file, address was given as &#8220;169.254.252.63&#8221;. I&#8217;ve changed it to &#8220;127.0.0.1&#8221; and saved the file(If you get &#8220;read only error&#8221; or something like that, just run your text editor with administrator rights).</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/wrong_ip.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1106" src="http://mirmirik.com/mirmirFiles/2013/01/wrong_ip-300x111.jpg" alt="Wrong IP Adress" width="300" height="111" srcset="http://mirmirik.net/mirmirFiles/2013/01/wrong_ip-300x111.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/wrong_ip.jpg 315w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>&nbsp;</p>
<p>8. I&#8217;ve runned &#8220;service_unregister.bat&#8221; file and &#8220;service_register.bat&#8221; files consecutively.</p>
<p>9. Final: Couchbase 2.0 is working as expected.</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/running.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1107" src="http://mirmirik.com/mirmirFiles/2013/01/running-300x155.jpg" alt="Running" width="300" height="155" srcset="http://mirmirik.net/mirmirFiles/2013/01/running-300x155.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/running-1024x530.jpg 1024w, http://mirmirik.net/mirmirFiles/2013/01/running.jpg 1194w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/done.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1108" src="http://mirmirik.com/mirmirFiles/2013/01/done-285x300.jpg" alt="Done" width="285" height="300" srcset="http://mirmirik.net/mirmirFiles/2013/01/done-285x300.jpg 285w, http://mirmirik.net/mirmirFiles/2013/01/done.jpg 718w" sizes="(max-width: 285px) 100vw, 285px" /></a></p>
<p>The post <a rel="nofollow" href="http://mirmirik.net/2013/couchbase-2-0-cannot-connect-to-localhost/">Couchbase 2.0 &#8211; Cannot connect to localhost</a> appeared first on <a rel="nofollow" href="http://mirmirik.net">mirmirik.net</a>.</p>
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		<title>Couchbase 2.0  &#8211; Could not connect to localhost:8091</title>
		<link>http://mirmirik.net/2013/couchbase-2-0-could-not-connect/</link>
					<comments>http://mirmirik.net/2013/couchbase-2-0-could-not-connect/#respond</comments>
		
		<dc:creator><![CDATA[mirmirik]]></dc:creator>
		<pubDate>Wed, 30 Jan 2013 22:00:20 +0000</pubDate>
				<category><![CDATA[günlük]]></category>
		<category><![CDATA[couchbase]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[nosql]]></category>
		<category><![CDATA[solved]]></category>
		<guid isPermaLink="false">http://mirmirik.com/?p=1102</guid>

					<description><![CDATA[<p>Bir iş için noSQL araştırması içindeyiz bir süredir. Eski günler hatırına ve uzun süredir uzak kaldığım teknolojiye tekrar girmek için iyi bir fırsat olarak gördüm ve ben de kendi çapımda bir şeyler yapmaya çalıştım. Önce MongoDB ile denemeler yaptım. Evdeki VM üzerindeki Ubuntu&#8217;ya kurdum ve .NET ile buna erişip neler yapılabildiğini araştırdım. Yıllarca relational DB [&#8230;]</p>
<p>The post <a rel="nofollow" href="http://mirmirik.net/2013/couchbase-2-0-could-not-connect/">Couchbase 2.0  &#8211; Could not connect to localhost:8091</a> appeared first on <a rel="nofollow" href="http://mirmirik.net">mirmirik.net</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Bir iş için <a title="noSQL Databases" href="http://nosql-database.org/">noSQL</a> araştırması içindeyiz bir süredir. Eski günler hatırına ve uzun süredir uzak kaldığım teknolojiye tekrar girmek için iyi bir fırsat olarak gördüm ve ben de kendi çapımda bir şeyler yapmaya çalıştım. Önce <a title="MongoDB" href="http://www.mongodb.org/">MongoDB</a> ile denemeler yaptım. Evdeki VM üzerindeki Ubuntu&#8217;ya kurdum ve .NET ile buna erişip neler yapılabildiğini araştırdım. Yıllarca relational DB ile çalıştıktan sonra garipsesem de inceledikçe merakım daha da arttı. Okuduklarım üzerine bir de <a title="Couchbase" href="http://www.couchbase.com">Couchbase&#8217;</a> i denemeye karar verdim. Sitesinden Windows sürümünü indirdim ve bir sıkıntı olmadan da kurdum. Ancak sunucuya erişim yapmaya çalıştığımda Chrome&#8217;un meşhur ekranı ile karşılaştım:</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/cannot_connect.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1103" src="http://mirmirik.com/mirmirFiles/2013/01/cannot_connect-300x90.jpg" alt="Cannot connect to localhost:8091" width="300" height="90" srcset="http://mirmirik.net/mirmirFiles/2013/01/cannot_connect-300x90.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/cannot_connect.jpg 909w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>Beklemediğim bir cevap&#8230; Sorunu çözmek için şu adımları takip ettim.</p>
<p>1. Mantıken kurulmuş olan bir servis olmalı ve çalışır olmalı(Kurulmuş ve çalışıyor):</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/service_is-_running.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1104" src="http://mirmirik.com/mirmirFiles/2013/01/service_is-_running-300x31.jpg" alt="Service is running" width="300" height="31" srcset="http://mirmirik.net/mirmirFiles/2013/01/service_is-_running-300x31.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/service_is-_running.jpg 639w" sizes="(max-width: 300px) 100vw, 300px" /></a>2. Bu servis mantıken bir port dinliyor olmalı. Couchbase sitesinden <a title="Couchbase portları" href="http://www.couchbase.com/docs/couchbase-manual-2.0/couchbase-network-ports.html">ilgili portlar</a>ı buldum.</p>
<p>3. Bu portlardan herhangi birisini dinleyen var mı (sorunuma özel olarak 8091 dinleniyor olmalı. Ancak portlardan sadece 8092 aktif olarak dinleniyor görülüyordu.)?</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/ports.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1105" src="http://mirmirik.com/mirmirFiles/2013/01/ports-300x102.jpg" alt="Computer active ports" width="300" height="102" srcset="http://mirmirik.net/mirmirFiles/2013/01/ports-300x102.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/ports.jpg 457w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>Not: Aktif portlarınızı DOS komut satırında &#8220;<code>netstat -an -p tcp</code>&#8221; komutu ile görebilirsiniz.</p>
<p>4. &#8220;localhost&#8221; doğru olarak 127.0.0.1 üzerinde tanımlıydı. Burada da sorun yoktu. Windows servisini durdurup tekrar başlattım ve event viewer&#8217; a göre bir hata da gelmedi.</p>
<p>5. Couchbase&#8217; in kurulduğu dizine baktım(varsayılan olarak &#8220;C:\Program Files\Couchbase\&#8221; ve &#8220;Server\bin&#8221; altında şu .bat dosyalarını gördüm:</p>
<p><code>service_register.bat<br />
service_reregister.bat<br />
service_unregister.bat<br />
service_start.bat<br />
service_stop.bat<br />
</code><br />
6. service_register.bat dosyasını açtım. Sadece 20 yıl içinde batch dosyaların içine yazılan kodların ne hale geldiğini görünce halime acıdım. Dosya içinde &#8220;<em>for /f &#8220;tokens=1* delims=&#8221; %%a in (&#8216;cmd /q/c &#8220;type bin\ipaddr.out&#8221;&#8216;) do set <strong>IP_ADDR</strong>=%%a</em>&#8221; diye bir satır vardı.  IP_ADDR değişkeni bir şekilde &#8220;%%a&#8221; değerini alıyordu. Bu değeri nasıl aldığını ise yazılımdaki OOM ile çözdüm(<strong>O</strong>lsa <strong>O</strong>lsa  <strong>M</strong>etodolojisi). Bir önceki komut mantıken &#8220;bin/ipaddr.out&#8221; dosyası ile ilgili bir şeyler yapıyordu. Bu dosyayı açtım.</p>
<p>7. Ve sonuç. Dosya içinde verilen IP adresi &#8220;169.254.252.63&#8221; olarak yazılmış. Bunu 127.0.0.1 olarak değiştirdim(yazma hakkınız yok vs. gibi saçmaladı tabi ki Windows ama CMD.EXE&#8217; yi ya da Notepad&#8217;i administrator hakkı ile çalıştırırsanız sorun olmuyor).</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/wrong_ip.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1106" src="http://mirmirik.com/mirmirFiles/2013/01/wrong_ip-300x111.jpg" alt="Wrong IP Adress" width="300" height="111" srcset="http://mirmirik.net/mirmirFiles/2013/01/wrong_ip-300x111.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/wrong_ip.jpg 315w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p>&nbsp;</p>
<p>8. service_unregister.bat dosyasını çalıştırdım. Daha sonra da service_register.bat dosyasını.</p>
<p>9. Ve sonuç: Couchbase 2.0 çalışmakta.</p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/running.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1107" src="http://mirmirik.com/mirmirFiles/2013/01/running-300x155.jpg" alt="running" width="300" height="155" srcset="http://mirmirik.net/mirmirFiles/2013/01/running-300x155.jpg 300w, http://mirmirik.net/mirmirFiles/2013/01/running-1024x530.jpg 1024w, http://mirmirik.net/mirmirFiles/2013/01/running.jpg 1194w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p><a href="http://mirmirik.com/mirmirFiles/2013/01/done.jpg"><img loading="lazy" decoding="async" class="aligncenter size-medium wp-image-1108" src="http://mirmirik.com/mirmirFiles/2013/01/done-285x300.jpg" alt="done" width="285" height="300" srcset="http://mirmirik.net/mirmirFiles/2013/01/done-285x300.jpg 285w, http://mirmirik.net/mirmirFiles/2013/01/done.jpg 718w" sizes="(max-width: 285px) 100vw, 285px" /></a></p>
<p>The post <a rel="nofollow" href="http://mirmirik.net/2013/couchbase-2-0-could-not-connect/">Couchbase 2.0  &#8211; Could not connect to localhost:8091</a> appeared first on <a rel="nofollow" href="http://mirmirik.net">mirmirik.net</a>.</p>
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