<p>Hello,</p>
<p>We added a new feature to the ndb_redis module, similar to how the rtpengine_disable_tout parameter of the rtpengine module works.</p>
<p>If a number of consecutive commands to a redis server fail, that server is temporarily disabled. This is configurable by parameters: "allowed_timeouts" and "disable_time".<br>
Disabling a server means that for "disable_time" seconds any command to that sever will not send the command to the server, but an error is returned instead.</p>
<p>For example if allowed_timeouts is configured to 0 and disable_time to 30, the first time redis_cmd or redis_execute functions fail the server will be disabled for 30 seconds.</p>
<p>The server information is retained by each Kamailio process individually, so this means that disabling a server is done by that process only and not globally.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/kamailio/kamailio/pull/1116'>https://github.com/kamailio/kamailio/pull/1116</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>ndb_redis: add disable server on failure feature</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1116/files#diff-0">src/modules/ndb_redis/doc/ndb_redis_admin.xml</a>
    (58)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1116/files#diff-1">src/modules/ndb_redis/ndb_redis_mod.c</a>
    (4)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1116/files#diff-2">src/modules/ndb_redis/redis_client.c</a>
    (77)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/kamailio/kamailio/pull/1116/files#diff-3">src/modules/ndb_redis/redis_client.h</a>
    (9)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/kamailio/kamailio/pull/1116.patch'>https://github.com/kamailio/kamailio/pull/1116.patch</a></li>
  <li><a href='https://github.com/kamailio/kamailio/pull/1116.diff'>https://github.com/kamailio/kamailio/pull/1116.diff</a></li>
</ul>

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