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ID Category Severity Reproducibility Date Submitted Last Update
0003473 [Quercus] feature always 05-01-09 16:47 05-01-09 16:47
Reporter koreth View Status public  
Assigned To
Priority normal Resolution open Platform
Status new   OS
Projection none   OS Version
ETA none Fixed in Version Product Version 4.0.0
  Product Build
Summary 0003473: API to force a dependency check
Description Disabling dependency checks (by setting the dependency check interval impossibly high) is good for runtime performance, but prevents us from deploying updated PHP code without a web app restart.

Enabling dependency checks means that with a large number of servers, we will almost certainly hit the race condition where a dependency check happens while we're in the middle of updating the PHP code base, which will cause inconsistent code to run (file A is checked and is unchanged, file B is checked and has just changed so gets reloaded, then file A gets updated by the code push and we end up running old-A with new-B until the next dependency check.)

If there were an API to tell Resin (or just Quercus) to make the dependency check happen immediately, we could hit a script to call that method after the PHP files had all been updated, and set the interval to a year or somesuch so it'd never happen on its own.

Restarting the whole webapp is not optimal because we lose the local cache and have to repopulate it.
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- Issue History
Date Modified Username Field Change
05-01-09 16:47 koreth New Issue


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