[HACKYSTAT-DEV-L:355] Ghost in the Eclipse sensor

Fri, 19 Nov 2004 12:00:26 -0800

I noticed that I had over 11 hours of active time over the course of a 24 hour period, and upon investigation into the logs discovered a 10 hour stretch of the following in eclipse.0.log:

#> Activity [statechange,
C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 349879]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 349939]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 349992]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350055]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350094]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350150]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350207]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350273]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350333]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350400]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350462]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350529]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350588]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350655]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350719]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350778]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350837]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350897]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350946]
Activity statechange OK (added activity)
#> Activity [statechange, C:/cvs/hackyKernel/src/org/hackystat/kernel/sensor/usermap/SensorShellMap.java, 350990]
Activity statechange OK (added activity)
#> send
Sending sensor data (11/18 04:15:28)
Ping: Ping OK (contacted server http://hackystat.ics.hawaii.edu/ with valid key.)
AutoSend: AutoSend OK ('send' command ignored)
Issue: Send OK (No entries to send.)
Perf: Send OK (No entries to send.)
FileMetric: Send OK (No entries to send.)
ReviewIssue: Send OK (No entries to send.)
Activity: Send OK (20 entries)
Cli: Send OK (No entries to send.)
ReviewActivity: Send OK (No entries to send.)
Coverage: Send OK (No entries to send.)
BuffTrans: Send OK (No entries to send.)
Commit: Send OK (No entries to send.)
UnitTest: Send OK (No entries to send.)
Build: Send OK (No entries to send.)


This sequence of entries occurred all night long (this excerpt was at 4:15am). I can assure you I was not hacking an all nighter on this class.

It appears that the Eclipse sensor can somehow enter a state where it emits statechange events with constantly changing buffer size values, even when the user is not actually editing.

I've posted this as: <http://hackydev.ics.hawaii.edu:8080/browse/HACK-125>, and assigned to Takuya.

I want to inform people generally of this phenomena so they can be on the lookout for it and let us know if they see it happening.

Cheers,
Philip

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