-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Mark,
On 10/18/13 3:55 AM, Mark Thomas wrote: > On 18/10/2013 08:25, Anu Prab wrote: >> Hi, >> >> I am using Tomcat version 7.0.40. >> >> Whenever there is an entry to context.xml, the context.xml >> reloads and redeploys the webapps since it is configured that way >> and is required to be that way. When a user hits a URL at this >> point, the page will be blank since reloading is still underway. >> My concern is - is there a way to determine when the reload is >> complete? Also, is there a way to display a meaningful message >> when the user hits a page during reload? > > Editing the context.xml triggers an undeploy followed by a deploy > rather than a reload. Currently, the brief period between the > undeploy and the deploy will be treated as if no web application > exists. > > Handling this the same way a context reload is handled > (essentially pausing the request until the redeploy is complete) > might be possible but that would require code changes. The problem > is non-trivial because of the interactions between the Mapper, the > Host, the HostConfig and the Context objects that would need to be > coordinated. I suspect the complexity would not be worth the > benefit when there is a simpler solution available. > > Using parallel deployment and deploying a new version would mean > the new version is deployed without any downtime and the old > version can be removed at your leisure. IIRC there was a bug in the past that during a *reload*, the webapp was temporarily unavailable and the ROOT context would be used. I modified our deployment procedure (which typically deploys a single webapp to a single Tomcat instance) to also deploy a trivial ROOT webapp with "/*" mapped to a "temporarily unavailable" page. Would such a strategy cover the case above? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJSYV+7AAoJEBzwKT+lPKRYgp0P+gMkv6wE+d493vFxFamOoZFT h/WDZqbvdr5/hA2A5JFG0ihURE0umjfdGXCJEbjZ1uFrEKWbfML4gsCT00O6kwxW fNK9QBFL2zr1QEyfo+1p2DA/3Ebc0wGpAicpr3N478hCDZAQ6ZvaA4b2NwcKtHSG pzwv/fzfYXycJjPxT1xM/zAMM5pCKwV6NWqGcFZYW6jRBQDQHi04M0JBcW6c/B5X XLWBcauCw3gbNsq4/MVesSWDBtgt+lY111OlyD+qxbcPamNEZy6txewAUYrVyjxC kboXpwvL5hoBXzJat7PBiyY1y9M2YzAGefceQUnpXiSqFWQUpPCDGzPoKEGx9MWB WFdtn79L5gaXH7DOEHg6Z5MwSLjZUUJKYOOhybaPCuxclgfpH0VZf2ZU9hT4Cy0X PIF/FsI7l4tJYoQWyE5z+cBeJOLgmVMnLENrBGEYcD3b3E/9YRcv/BHou82Yigbq Blu/1NDTqGQ6+K4jADEv7OASxYBPYKTodr8mQcgFpo/2dpcRYO5lISOEzg0FznAT 2tM5VChhqigl0PhLAQ2abQG8P4w4+Er1gfBIZkWMIq7wAgRCF3d1q/PrUqM45pko heP5Ti5sr8r/bc4lRRJKf0OB+GBPT9eWnbwD6ngMqjb6UR5P+YnTZvhiIMaRk0To H8WgDF+au1jkdC5RcVRK =PXe5 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
