Mercurial > kallithea
annotate docs/usage/performance.rst @ 5772:35508e2d7557
i18n: add translation for Spanish
Created new translation.
author | Oscar Curero <oscar@naiandei.net> |
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date | Tue, 08 Mar 2016 09:09:50 +0000 |
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1 .. _performance: |
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2 |
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3 ================================ |
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4 Optimizing Kallithea performance |
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5 ================================ |
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6 |
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7 When serving a large amount of big repositories, Kallithea can start |
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8 performing slower than expected. Because of the demanding nature of handling large |
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9 amounts of data from version control systems, here are some tips on how to get |
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10 the best performance. |
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11 |
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12 Follow these few steps to improve performance of Kallithea system. |
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13 |
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14 1. Kallithea is often I/O bound, and hence a fast disk (SSD/SAN) is |
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15 usually more important than a fast CPU. |
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16 |
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17 2. Increase cache |
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18 |
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19 Tweak beaker cache settings in the ini file. The actual effect of that |
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20 is questionable. |
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21 |
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22 3. Switch from SQLite to PostgreSQL or MySQL |
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23 |
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24 SQLite is a good option when having a small load on the system. But due to |
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25 locking issues with SQLite, it is not recommended to use it for larger |
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26 deployments. Switching to MySQL or PostgreSQL will result in an immediate |
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27 performance increase. A tool like SQLAlchemyGrate_ can be used for |
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28 migrating to another database platform. |
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29 |
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30 4. Scale Kallithea horizontally |
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32 Scaling horizontally can give huge performance benefits when dealing with |
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33 large amounts of traffic (many users, CI servers, etc.). Kallithea can be |
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34 scaled horizontally on one (recommended) or multiple machines. In order |
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35 to scale horizontally you need to do the following: |
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36 |
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37 - Each instance's ``data`` storage needs to be configured to be stored on a |
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38 shared disk storage, preferably together with repositories. This ``data`` |
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39 dir contains template caches, sessions, whoosh index and is used for |
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40 task locking (so it is safe across multiple instances). Set the |
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41 ``cache_dir``, ``index_dir``, ``beaker.cache.data_dir``, ``beaker.cache.lock_dir`` |
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42 variables in each .ini file to a shared location across Kallithea instances |
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43 - If celery is used each instance should run a separate Celery instance, but |
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44 the message broker should be common to all of them (e.g., one |
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45 shared RabbitMQ server) |
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46 - Load balance using round robin or IP hash, recommended is writing LB rules |
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47 that will separate regular user traffic from automated processes like CI |
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48 servers or build bots. |
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49 |
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50 |
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51 .. _SQLAlchemyGrate: https://github.com/shazow/sqlalchemygrate |