Databases
StackOverflow2013
Postsdbo
POAvoid JVM startup delay when running JAR through PHP using exec
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAvoid JVM startup delay when running JAR through PHP using exec
    primarykey
    data
    text
    <p>Is there any way to avoid the delay caused by the JVM starting up each time you run an exec command in PHP?</p> <p>I have two JARs for encryption and decryption that I need to run using PHP. Both run on the same script although one decrypts a URL parameter and then the other encrypts some other information. When I run them through the command line, they both finish in less than 0.4 seconds each. However, when I run them using the PHP exec function, a new instance of the JVM is started which adds 5 seconds onto each JAR execution time.</p> <p>I have investigated using Nailgun but can't get that to work. I can't find any documentation for getting it to run a JAR and when I use classes, it can never find them either.</p> <p>I have also considered using PHP/Java Bridge. I would prefer however to continue using exec. I am already running IIS 7.5 and I am not sure how one would configure the bridge to work with this.</p> <p><strong>My question is this: <br>Is there any way to keep the JVM running in the background in such a way that the PHP exec function does not need to start a new instance each time? I think there must be a way as there is no delay through the command line.</strong></p> <p>If there is no way of doing this, then I am open to other suggestions. 11 seconds to run a PHP script means that visitors to the website will most likely leave.</p> <p>Additional information that may or may not be of use: <br>It will be running on Windows Server 2008 R2 32-bit OS. <br>Local access required only. <br>IIS server 7.5 being used. <br>Website is coded in PHP. PHP version is 5.3.5. <br>Server is running the latest JRE - Java7 u6 </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USRen
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAvoid JVM startup delay when running JAR through PHP using exec
      1. This table or related slice is empty.
      1. VTUpMod
    1. COThat's exactly what nailgun is for, I think. Maybe you should get some advice on getting it to work.
      singulars
      1. POAvoid JVM startup delay when running JAR through PHP using exec
      1. USQnan
    2. CO@Qnan I will look into Nailgun again if there are no alternatives I can get to work. Do I just edit my question to include asking for advice on Nailgun if anyone has experience using it? Not sure, new enough here.
      singulars
      1. POAvoid JVM startup delay when running JAR through PHP using exec
      1. USRen
    3. COit's usually better to ask a separate question and tag it appropriately, so the people who have more experience with the particular software you intend to use would find it
      singulars
      1. POAvoid JVM startup delay when running JAR through PHP using exec
      1. USQnan
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload