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Posted to notifications@apisix.apache.org by GitBox <gi...@apache.org> on 2020/05/10 11:47:01 UTC
[GitHub] [incubator-apisix] spacewander opened a new issue #1567: the buffer for access log is too large
spacewander opened a new issue #1567:
URL: https://github.com/apache/incubator-apisix/issues/1567
Currently we configure the buffer of the access log like this:
```
access_log {* http.access_log *} main buffer=32768 flush=3;
```
According to Nginx's doc:
> The buffer size must not exceed the size of an atomic write to a disk file
http://nginx.org/en/docs/http/ngx_http_log_module.html
And for Linux, the default atomic write size is `PIPE_BUF` (4096), see `man 7 pipe`.
Therefore, the default size is too large to be safe.
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[GitHub] [incubator-apisix] Miss-you commented on issue #1567: the buffer for access log is too large
Posted by GitBox <gi...@apache.org>.
Miss-you commented on issue #1567:
URL: https://github.com/apache/incubator-apisix/issues/1567#issuecomment-626474959
On the other hand, is `flush=1` better?
Since the log buffer is lowered, the flush time should also be lowered.
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[GitHub] [incubator-apisix] Miss-you commented on issue #1567: the buffer for access log is too large
Posted by GitBox <gi...@apache.org>.
Miss-you commented on issue #1567:
URL: https://github.com/apache/incubator-apisix/issues/1567#issuecomment-626476994
https://github.com/apache/incubator-apisix/pull/1570
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[GitHub] [incubator-apisix] Miss-you closed issue #1567: the buffer for access log is too large
Posted by GitBox <gi...@apache.org>.
Miss-you closed issue #1567:
URL: https://github.com/apache/incubator-apisix/issues/1567
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[GitHub] [incubator-apisix] Miss-you commented on issue #1567: the buffer for access log is too large
Posted by GitBox <gi...@apache.org>.
Miss-you commented on issue #1567:
URL: https://github.com/apache/incubator-apisix/issues/1567#issuecomment-626473758
+1
A log buffer that is too small is not good, 4096 is more appropriate.
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