-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 André,
On 9/19/15 10:00 AM, André Warnier (tomcat) wrote: > On 19.09.2015 02:20, jennifer zhou wrote: >> Hi, >> >> Our app was running well on Tomcat 7 on linux. Recently we >> migrated to Tomcat 8 on linux. However we found the system CPU >> usage is higher than normal. When there is no any user >> interaction, we still see about 25% of the system CPU usage. >> After deep dive, we found the tomcat keeps scanning our app's >> class path under WEB-INF folder. Actually all our artifacts are >> packed within WEB-INF/lib folder, there is nothing within >> WEB-INF/classes folder. Is there any way to look for WEB-INF/lib >> folder first before looking for artifacts within WEB-INF/classes >> folder? >> >> Also why does Tomcat keeps scanning our app classpath during app >> idle time? Is there anyway to turn this off? > > Quick pointer : > http://tomcat.apache.org/tomcat-8.0-doc/config/host.html#Standard_Impl ementation > > See "autoDeploy" (default is true) > > If you set this to "false", does the same still happen ? A good guess, but scanning for updated files doesn't usually take much in the way of CPU. It also might be Axis scanning for something. I find it odd that Tomcat would look for WEB-INF/classes/org specifically and not anything else. Best thing to do is get a thread dump while the CPU is being used to find out what exactly is doing that. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJV/XTwAAoJEBzwKT+lPKRYcjMP/11HfY7n6DWHDl7hO9Sd0DXQ UmzuRSG2X7iD+OKx1M98sYiUcaBpCyfjemgFXFCYPFIkC6eFbFQ+ZlB5CPWv8v2M VYJxx6llIzmDO4j2r9Ik6G8XjWNckX0eedCQHFqitMfAW/JxpVxdgaJikyxO2+8D 2BAKQOELkQAgwkXRrncqk3S/UfSXoxPM+Fm4oOjwDFy60ydwSJlch7QmAKxRU93l hDmlsk4fMeep9hCAE/uE2hTLajnhGUj0GhhuTcpTAObp5c/BinwyIbpt2RwAQQVg ZE5MVvKgJFcPdXavU0wGVdfZod7XWetsCz80plcchdhq3uICKix4KLDAjPDiEQgm +hTGjC1AOGb2DSf8im3R6qf8Lfb4uYUURjbJKwPDBS65hF+ZwxX7QFcTKDaoPlfn OpvkXzds4VRjdOlavwrbs8T2BgsafFT/POhm/+0XZh54p1EpTJxq5p5NGpxvCizu G7+GnNpdzhXHLcK8IZg3DOfO7xtIKFkN3cwjCti5W7KMVdGvxk3eRE+yVBmWpkQS 8hidcLUzcz0k2N7ZG4d6KYFu5eQBKgspQP2yX8zhihwMDsrb5JD1kPxD6yMMzppp k8N1X1k95UoOLV/1NDTCPQ1DHG9MIgS6OHEHcVZSBhSz2DPMaxS6GkxzfXQFxSVp CFCiR4UOFFH87tM6ojL9 =CXsu -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
