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Performance test - Object closed error #42

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rr83019 opened this issue Jul 4, 2020 · 6 comments
Closed

Performance test - Object closed error #42

rr83019 opened this issue Jul 4, 2020 · 6 comments

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@rr83019
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rr83019 commented Jul 4, 2020

This is the most common type error occurring on both /captcha and /answer endpoint

<Response [500]>
<!DOCTYPE html>
<html>
<head><title>500 Internal Server Error</title></head>
<body><h1>500 Internal Server Error</h1>
<p>Error processing request: The object is already closed [90007-197]</p>
</body></html>
@hrj
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hrj commented Jul 4, 2020

Does this only occur during high load?

@hrj
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hrj commented Jul 4, 2020 •
edited
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Does running the scripts/simpleTest.py work for you?

Note, the test doesn't attempt to solve the captcha correctly. So it will print a failure message at the end. But there should be no exceptions.

@rr83019
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rr83019 commented Jul 4, 2020 •
edited
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Does this only occur during high load?

No, it occurs at normal loads too. I've been testing for 1000 concurrent users spawning at 10 users/second.
It occurs at 100-150 concurrent users.

@rr83019
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rr83019 commented Jul 4, 2020

Stack trace:

[info] Starting server on port:8888
[info] org.h2.jdbc.JdbcSQLException: The object is already closed [90007-197]
[info]  at org.h2.message.DbException.getJdbcSQLException(DbException.java:357)
[info]  at org.h2.message.DbException.get(DbException.java:179)
[info]  at org.h2.message.DbException.get(DbException.java:155)
[info]  at org.h2.message.DbException.get(DbException.java:144)
[info] 	at org.h2.jdbc.JdbcResultSet.checkClosed(JdbcResultSet.java:3202)
[info] 	at org.h2.jdbc.JdbcResultSet.getColumnIndex(JdbcResultSet.java:3115)
[info] 	at org.h2.jdbc.JdbcResultSet.get(JdbcResultSet.java:3247)
[info] 	at org.h2.jdbc.JdbcResultSet.getString(JdbcResultSet.java:310)
[info] 	at lc.Captcha.getChallenge(Main.scala:97)
[info] 	at lc.Server.$anonfun$new$1(Server.scala:75)
[info] 	at lc.HTTPServer.serve(Unknown Source)
[info] 	at lc.HTTPServer.handleMethod(Unknown Source)
[info] 	at lc.HTTPServer.handleTransaction(Unknown Source)
[info] 	at lc.HTTPServer.handleConnection(Unknown Source)
[info] 	at lc.HTTPServer$SocketHandlerThread$1.run(Unknown Source)
[info] 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[info] 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[info] 	at java.base/java.lang.Thread.run(Thread.java:834)

@rr83019
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rr83019 commented Jul 4, 2020

Does running the scripts/simpleTest.py work for you?

Note, the test doesn't attempt to solve the captcha correctly. So it will print a failure message at the end. But there should be no exceptions.

When I execute the script my cursor changes and when I click the cursor the following error occurs:

import-im6.q16: attempt to perform an operation not allowed by the security policy `PS' @ error/constitute.c/IsCoderAuthorized/408.

@hrj
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hrj commented Jul 5, 2020

Closed via 62b3a09

@hrj hrj closed this as completed Jul 5, 2020
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@hrj @rr83019