Table of Contents
List of Tables
List of Examples
This module is an implementation of a cache system designed to work with a Couchbase server. It uses the libcouchbase client library to connect to the server instance, It uses the Key-Value interface exported from the core.
memory costs are no longer on the server
many servers can be used inside a cluster, so the memory is virtually unlimited
the cache is 100% persistent. A restart of OpenSIPS server will not affect the DB. The CouchBase DB is also persistent so it can also be restarted without loss of information.
CouchBase is an open-source project so it can be used to exchange data with various other applications
By creating a CouchBase Cluster, multiple OpenSIPS instances can easily share key-value information
The urls of the server groups that OpenSIPS will connect to in order to use the from script cache_store,cache_fetch, etc operations. It can be set more than one time. The prefix part of the URL will be the identifier that will be used from the script. The format of the URL is couchbase[:identifier]://[username:password@]IP:Port/bucket_name
Example 1.1. Set
... modparam("cachedb_couchbase", "cachedb_url","couchbase:group1://localhost:6379/default") modparam("cachedb_couchbase", "cachedb_url","couchbase:cluster1://random_url:8888/my_bucket") # Multiple hosts modparam("cachedb_couchbase", "cachedb_url","couchbase:cluster1://random_url1:8888,random_url2:8888,random_url3:8888/my_bucket") ...
The max duration in microseconds that a couchbase op is expected to last. Default is 3000000 ( 3 seconds )
The maximum number of microseconds that a couchbase query can last. Anything above the threshold will trigger a warning message to the log
Default value is “0 ( unlimited - no warnings )”.
Example 1.3. Set
... modparam("cachedb_couchbase", "exec_threshold", 100000) ...
Delay connecting to a bucket until the first time it is used. Connecting to many buckets at startup can be time consuming. This option allows for faster startup by delaying connections until they are needed. This option can be dangerous for untested bucket configurations/settings. Always test first without lazy_connect. This option will show errors in the log during the first access made to a bucket. Default is 0 ( Connect to all buckets on startup )
Example 1.5. Use CouchBase servers
... cache_store("couchbase:group1","key","$ru value"); cache_fetch("couchbase:cluster1","key",$avp(10)); cache_remove("couchbase:cluster1","key"); ...
Table 2.1. Top contributors by DevScore(1), authored commits(2) and lines added/removed(3)
(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)
(2) including any documentation-related commits, excluding merge commits. Regarding imported patches/code, we do our best to count the work on behalf of the proper owner, as per the "fix_authors" and "mod_renames" arrays in opensips/doc/build-contrib.sh. If you identify any patches/commits which do not get properly attributed to you, please submit a pull request which extends "fix_authors" and/or "mod_renames".
(3) ignoring whitespace edits, renamed files and auto-generated files
Table 2.2. Most recently active contributors(1) to this module
|1.||Bogdan-Andrei Iancu (@bogdan-iancu)||Oct 2014 - Jun 2018|
|2.||Liviu Chircu (@liviuchircu)||Mar 2014 - Jun 2018|
|3.||Razvan Crainea (@razvancrainea)||Aug 2015 - Nov 2017|
|4.||Julián Moreno Patiño||Feb 2016 - Feb 2016|
|5.||Ryan Bullock (@rrb3942)||Oct 2013 - Jun 2015|
|6.||Vlad Paiu (@vladpaiu)||Jan 2013 - May 2014|
(1) including any documentation-related commits, excluding merge commits
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