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annotate docs/usage/performance.rst @ 4118:fd2dff0588bc rhodecode-2.2.5-gpl
Introduce LICENSE.md to include license information about Bootstrap 3.0.0
This creates a LICENSE.md file which will ultimately contain all relevant
licensing information for the project, but for the moment just contains
information about Boostrap 3.0.0 licensed under Apache License 2.0.
A copy of the Apache license is also herein included.
author | Bradley M. Kuhn <bkuhn@sfconservancy.org> |
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date | Wed, 02 Jul 2014 19:03:14 -0400 |
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1 .. _performance: |
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2 |
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3 ================================ |
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4 Optimizing RhodeCode Performance |
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5 ================================ |
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6 |
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7 When serving large amount of big repositories RhodeCode can start |
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8 performing slower than expected. Because of demanding nature of handling large |
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9 amount of data from version control systems here are some tips how to get |
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10 the best performance. |
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11 |
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12 * RhodeCode will perform better on machines with faster disks (SSD/SAN). It's |
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13 more important to have faster disk than faster CPU. |
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14 |
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15 * Slowness on initial page can be easily fixed by grouping repositories, and/or |
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16 increasing cache size (see below), that includes using lightweight dashboard |
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17 option and vcs_full_cache setting in .ini file |
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18 |
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20 Follow these few steps to improve performance of RhodeCode system. |
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2680 | 23 1. Increase cache |
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2680 | 25 in the .ini file:: |
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2680 | 27 beaker.cache.sql_cache_long.expire=3600 <-- set this to higher number |
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28 |
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29 This option affects the cache expiration time for main page. Having |
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30 few hundreds of repositories on main page can sometimes make the system |
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31 to behave slow when cache expires for all of them. Increasing `expire` |
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32 option to day (86400) or a week (604800) will improve general response |
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33 times for the main page. RhodeCode has an intelligent cache expiration |
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34 system and it will expire cache for repositories that had been changed. |
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35 |
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36 2. Switch from sqlite to postgres or mysql |
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38 sqlite is a good option when having small load on the system. But due to |
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39 locking issues with sqlite, it's not recommended to use it for larger |
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40 setup. Switching to mysql or postgres will result in a immediate |
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41 performance increase. |
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42 |
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43 3. Scale RhodeCode horizontally |
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44 |
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45 Scaling horizontally can give huge performance increase when dealing with |
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46 large traffic (large amount of users, CI servers etc). RhodeCode can be |
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47 scaled horizontally on one (recommended) or multiple machines. In order |
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48 to scale horizontally you need to do the following: |
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49 |
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50 - each instance needs it's own .ini file and unique `instance_id` set in them |
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51 - each instance `data` storage needs to be configured to be stored on a |
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52 shared disk storage, preferably together with repositories. This `data` |
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53 dir contains template caches, sessions, whoosh index and it's used for |
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54 tasks locking (so it's safe across multiple instances). Set the |
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55 `cache_dir`, `index_dir`, `beaker.cache.data_dir`, `beaker.cache.lock_dir` |
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56 variables in each .ini file to shared location across RhodeCode instances |
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57 - if celery is used each instance should run separate celery instance, but |
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58 the message broken should be common to all of them (ex one rabbitmq |
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59 shared server) |
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60 - load balance using round robin or ip hash, recommended is writing LB rules |
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61 that will separate regular user traffic from automated processes like CI |
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62 servers or build bots. |