repair and boot mongodb on centos

When I somehow login and logout my linode vps where I start the service of mongodb for some times, then I got these errors: # service mongod startStarting mongod: Wed Oct 30 01:28:42.557Wed Oct 30 01:28:42.558 warning: 32-bit servers don’t

When I somehow login and logout my linode vps where I start the service of mongodb for some times, then I got these errors:

<code class="language-text"># service mongod startStarting mongod: Wed Oct 30 01:28:42.557Wed Oct 30 01:28:42.558 warning: 32-bit servers don't have journaling enabled by default. Please use --journal if you want durability.Wed Oct 30 01:28:42.558about to fork child process, waiting until server is ready for connections.forked process: 6873all output going to: /var/log/mongo/mongod.logERROR: child process failed, exited with error number 100                                                       [FAILED]</code>

So, after googling, I find the reason:

<code class="language-text">Unclean shutdown detected.Please visit http://dochub.mongodb.org/core/repair for recovery instructions.</code>

How to resolve it?

First, kill the process if it exists

<code class="language-text">ps -ef | grep mongo*ps -ef | grep mongodkill -9 pid</code>

Second, remove the lock file for mongodb

<code class="language-text">rm -rf /var/lib/mongo/m<b style="color:transparent">本文来源gao@!dai!ma.com搞$$代^@码网*</b>ongod.lock</code>

Third, boot it with repair mode

<code class="language-text">mongod -f /etc/mongod.conf --repair</code>

Forth, boot again without repair mode

<code class="language-text">mongod -f /etc/mongod.conf</code>

Now we can check if the mongodb process is running:

<code class="language-text">ps -ef | grep mongo*ps -ef | grep mongod</code>

And try it: mongo

Done!

原文地址：repair and boot mongodb on centos, 感谢原作者分享。

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