Mercurial > hg > ngx_http_upstream_keepalive
annotate README @ 8:565939797f5c 0.1
Keepalive: fix connection closing and avoid for loop there.
1. Adding cache item to free queue was missed.
2. Loop over all cached connections isn't optimal, replace it with simple
queue remove at cost of storing config pointer in each cache item.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 24 Oct 2008 15:51:17 +0400 |
parents | c1a2ef20a2a7 |
children | f3e74fbd0f0b |
rev | line source |
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Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
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1 Keepalive balancer module for nginx. |
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Keepalive: add license and some documentation.
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2 |
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3 This module implements cache for backend connections. As of now, it may |
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Maxim Dounin <mdounin@mdounin.ru>
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4 be used with memcached upstreams. |
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5 |
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6 Note: don't even try it with http backends. It won't work. |
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Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
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7 |
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Keepalive: add license and some documentation.
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8 Note: it's for nginx 0.7.* and won't work with nginx 0.6.*. |
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Keepalive: add license and some documentation.
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9 |
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10 Configuration directives: |
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11 |
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12 keepalive <num> [single] |
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13 |
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14 Scope: upstream |
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15 |
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16 Switches on keepalive module for the upstream in question. |
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17 |
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18 Parameters: |
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19 |
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20 - <num> |
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21 Maximum number of connections to cache. If there isn't enough |
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22 room to cache new connections - last recently used connections |
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23 will be kicked off the cache. |
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24 |
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25 - single |
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26 Treat everything as single host. With this flag connections |
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27 to different backends are treated as equal. |
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28 |
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29 Sample configuration: |
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30 |
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31 upstream memd { |
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32 server 127.0.0.1:11211; |
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33 server 10.0.0.2:11211; |
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34 keepalive 10; |
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35 } |
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36 |
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Keepalive: add license and some documentation.
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37 This module was tested to work with standard round-robin balancing, but |
c1a2ef20a2a7
Keepalive: add license and some documentation.
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38 it's believed to be compatible with more sophisticated balancers. The only |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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39 requirement is to activate them *before* this module, e.g.: |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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40 |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
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41 upstream memd { |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
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42 server 127.0.0.1:11211; |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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43 server 10.0.0.2:11211; |
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44 ip_hash; |
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45 keepalive 10; |
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Maxim Dounin <mdounin@mdounin.ru>
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46 } |
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Maxim Dounin <mdounin@mdounin.ru>
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47 |
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Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
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48 To compile nginx with keepalive module, use "--add-module <path>" option to |
c1a2ef20a2a7
Keepalive: add license and some documentation.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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49 nginx configure. |