From 20399172542c6754f29c80b06332afce11f74bac Mon Sep 17 00:00:00 2001 From: Alan Orth Date: Fri, 12 Jan 2018 07:55:01 +0200 Subject: [PATCH] Add notes for 2018-01-12 --- content/post/2018-01.md | 30 +++++++++++++++++++++++++++++ public/2017-11/index.html | 4 ++-- public/2018-01/index.html | 40 ++++++++++++++++++++++++++++++++++++--- public/sitemap.xml | 12 ++++++------ 4 files changed, 75 insertions(+), 11 deletions(-) diff --git a/content/post/2018-01.md b/content/post/2018-01.md index a4a0c0bc5..a6330f6e2 100644 --- a/content/post/2018-01.md +++ b/content/post/2018-01.md @@ -516,3 +516,33 @@ db.url = jdbc:postgresql://localhost:5432/dspacetest?ApplicationName=dspaceDefau ``` - With that it is super easy to see where PostgreSQL connections are coming from in `pg_stat_activity` + +## 2018-01-12 + +- I'm looking at the [DSpace 6.0 Install docs](https://wiki.duraspace.org/display/DSDOC6x/Installing+DSpace#InstallingDSpace-ServletEngine(ApacheTomcat7orlater,Jetty,CauchoResinorequivalent)) and notice they tweak the number of threads in their Tomcat connector: + +``` + + +``` + +- In Tomcat 8.5 the `maxThreads` defaults to 200 which is probably fine, but tweaking `minSpareThreads` could be good +- I don't see a setting for `maxSpareThreads` in the docs so that might be an error +- Looks like in Tomcat 8.5 the default URIEncoding for Connectors is UTF-8, so we don't need to specify that manually anymore: https://tomcat.apache.org/tomcat-8.5-doc/config/http.html +- +- Ooh, I just the `acceptorThreadCount` setting (in Tomcat 7 and 8.5): + +``` +The number of threads to be used to accept connections. Increase this value on a multi CPU machine, although you would never really need more than 2. Also, with a lot of non keep alive connections, you might want to increase this value as well. Default value is 1. +``` + +- That could be very interesting diff --git a/public/2017-11/index.html b/public/2017-11/index.html index 685fc82d1..0e936b022 100644 --- a/public/2017-11/index.html +++ b/public/2017-11/index.html @@ -38,7 +38,7 @@ COPY 54701 - + @@ -88,7 +88,7 @@ COPY 54701 "url": "https://alanorth.github.io/cgspace-notes/2017-11/", "wordCount": "5428", "datePublished": "2017-11-02T09:37:54+02:00", - "dateModified": "2017-12-17T10:43:56+02:00", + "dateModified": "2018-01-12T06:07:03+02:00", "author": { "@type": "Person", "name": "Alan Orth" diff --git a/public/2018-01/index.html b/public/2018-01/index.html index 6a2162a42..9186b147c 100644 --- a/public/2018-01/index.html +++ b/public/2018-01/index.html @@ -92,7 +92,7 @@ Danny wrote to ask for help renewing the wildcard ilri.org certificate and I adv - + @@ -194,9 +194,9 @@ Danny wrote to ask for help renewing the wildcard ilri.org certificate and I adv "@type": "BlogPosting", "headline": "January, 2018", "url": "https://alanorth.github.io/cgspace-notes/2018-01/", - "wordCount": "2467", + "wordCount": "2630", "datePublished": "2018-01-02T08:35:54-08:00", - "dateModified": "2018-01-11T10:42:35+02:00", + "dateModified": "2018-01-12T06:07:03+02:00", "author": { "@type": "Person", "name": "Alan Orth" @@ -821,6 +821,40 @@ cache_alignment : 64
  • With that it is super easy to see where PostgreSQL connections are coming from in pg_stat_activity
    • +

    2018-01-12

    + + + +
    <!-- Define a non-SSL HTTP/1.1 Connector on port 8080 -->
+<Connector port="8080"
+           maxThreads="150"
+           minSpareThreads="25"
+           maxSpareThreads="75"
+           enableLookups="false"
+           redirectPort="8443"
+           acceptCount="100"
+           connectionTimeout="20000"
+           disableUploadTimeout="true"
+           URIEncoding="UTF-8"/>
+
    + + + +
    The number of threads to be used to accept connections. Increase this value on a multi CPU machine, although you would never really need more than 2. Also, with a lot of non keep alive connections, you might want to increase this value as well. Default value is 1.
+
    + + + diff --git a/public/sitemap.xml b/public/sitemap.xml index c3d3558ce..1d312d086 100644 --- a/public/sitemap.xml +++ b/public/sitemap.xml @@ -4,7 +4,7 @@ https://alanorth.github.io/cgspace-notes/2018-01/ - 2018-01-11T10:42:35+02:00 + 2018-01-12T06:07:03+02:00 @@ -14,7 +14,7 @@ https://alanorth.github.io/cgspace-notes/2017-11/ - 2017-12-17T10:43:56+02:00 + 2018-01-12T06:07:03+02:00 @@ -144,7 +144,7 @@ https://alanorth.github.io/cgspace-notes/ - 2018-01-11T10:42:35+02:00 + 2018-01-12T06:07:03+02:00 0 @@ -155,7 +155,7 @@ https://alanorth.github.io/cgspace-notes/tags/notes/ - 2018-01-11T10:42:35+02:00 + 2018-01-12T06:07:03+02:00 0 @@ -167,13 +167,13 @@ https://alanorth.github.io/cgspace-notes/post/ - 2018-01-11T10:42:35+02:00 + 2018-01-12T06:07:03+02:00 0 https://alanorth.github.io/cgspace-notes/tags/ - 2018-01-11T10:42:35+02:00 + 2018-01-12T06:07:03+02:00 0