[
https://issues.apache.org/jira/browse/GEODE-7370?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kirk Lund updated GEODE-7370:
-----------------------------
Description:
According to the source code and documentation, io.github.classgraph.ScanResult
must be closed to avoid memory and file leaks.
I identified a large memory leak that apparently after adding geode-log4j.
Surprisingly the cause ended up being an instance of ScanResult which is used
by the management code to search the classpath for user classes that implement
geode functions or gfsh commands.
Geode currently depends on ClassGraph version 4.0.6, but the library is up to
version 4.8.52 (averaging around a dozen releases per month).
JVM bytes in use by io.github.classgraph after closing all ScanResult instances:
* Before geode-log4j with ClassGraph 4.0.6: 20,488 bytes
* Before geode-log4j with ClassGraph 4.8.52: 1,056 bytes
* After geode-log4j with ClassGraph 4.0.6: 56,753,008 bytes
* After geode-log4j with ClassGraph 4.8.52: 1,056 bytes
Given the above results of my testing, I believe we need to keep this
dependency up-to-date and upgrade to 4.8.52.
----
More detailed analysis below:
Git version shas that were tested:
{noformat}
Before: 802687154131af16d350bf39d152feb4685ba7e6 (sha before geode-log4j)
Before-w/upgrade: Before w/ ClassGraph upgraded from 4.0.6 to 4.8.52
<< Geode-log4j: efc2362d2bae0877a427ce2c29beae94118d6567 (geode-log4j) >>
After: dffcb9446aef09c7bf6e626121f4d2ec5c74586f (async alerts)
After-w/upgrade: After w/ ClassGraph upgraded from 4.0.6 to 4.8.52
{noformat}
Java process memory sizes:
Before:
{noformat}
ChildVMs
22297 java 0.0 00:07.51 32 1 104 252M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22295 java 0.0 00:07.72 32 1 104 259M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22291 java 0.1 00:11.66 32 1 104 291M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22289 java 0.1 00:11.68 32 1 104 300M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22287 java 0.5 00:07.67 64 1 168 276M+ 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
22286 java 0.4 00:03.55 67 1 174 184M+ 0B 0B
22220 22220 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
22173 java 0.1 00:01.63 28 1 96 88M+ 0B 0B
22173 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
22220 java 0.6 00:52.27 81 1 201 814M 0B 0B
22220 22173 sleeping *0[1] 0.00000 0.00000 501
{noformat}
Before-w/upgrade:
{noformat}
ChildVMs
25789 java 0.0 00:06.93 31 1 101 257M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25788 java 0.1 00:06.93 31 1 101 259M+ 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25784 java 0.0 00:10.37 31 1 101 286M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25782 java 0.1 00:11.68 31 1 101 278M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25780 java 0.3 00:07.84 63/1 1 165 308M+ 0B 0B
25714 25779 running *0[1] 0.00000 0.00000 501
GradleWorkerMain
25779 java 0.1 00:03.39 60 1 160 183M 0B 0B
25714 25714 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
25714 java 0.8 00:48.79 79 1 197 793M 0B 0B
25714 25667 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
25667 java 0.2 00:02.16 28 1 96 101M+ 0B 0B
25667 86991 sleeping *0[1] 0.00000 0.00000 501
{noformat}
After:
{noformat}
ChildVMs
21056 java 0.1 00:06.67 31 1 101 256M 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21055 java 0.1 00:06.82 31 1 101 264M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21053 java 0.1 00:15.95 31 1 101 373M 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21051 java 0.3 00:14.96 31 1 101 363M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21050 java 0.5 00:12.07 63 1 165 343M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
21049 java 0.2 00:06.99 60 1 160 321M+ 0B 0B
20988 20988 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
20941 java 0.2 00:02.14 28 1 96 101M+ 0B 0B
20941 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
20988 java 0.8 00:53.39 81 1 202 963M 0B 0B
20988 20941 sleeping *0[1] 0.00000 0.00000 501
{noformat}
After-w/upgrade:
{noformat}
ChildVMs
24298 java 0.1 00:06.29 32 1 104 250M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24297 java 0.1 00:06.59 32 1 104 262M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24295 java 0.1 00:14.97 32 1 104 362M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24293 java 0.2 00:15.44 32 1 104 376M+ 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24292 java 0.7 00:10.36 64 1 168 327M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
24291 java 0.7 00:06.07 67 1 174 320M+ 0B 0B
24231 24231 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
24184 java 0.3 00:01.39 28 1 96 89M+ 0B 0B
24184 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
24231 java 1.0 00:46.21 81 1 201 805M 0B 0B
24231 24184 sleeping *0[1] 0.00000 0.00000 501
{noformat}
Biggest objects - Dominators comparison (retained size in bytes):
{noformat}
Before:
sun.misc.Launcher$AppClassLoader - 883,984
Before-w/upgrade:
sun.misc.Launcher$AppClassLoader - 915,384
After:
io.github.classgraph.ScanResult - 11,373,088
After-w/upgrade:
sun.misc.Launcher$AppClassLoader - 1,256,904
{noformat}
Class and package comparison (retained size in bytes):
{noformat}
org.apache.geode.internal.logging -
Before: 253,520
Before-w/upgrade: 253,520
After: 33,576
After-w/upgrade: 21,152
org.apache.geode.logging -
Before: 0
Before-w/upgrade: 0
After: 233,104
After-w/upgrade: 231,968
org.apache.logging.log4j -
Before: 581,184
Before-w/upgrade: 581,184
After: 605,904
After-w/upgrade: 584,576
java.util.logging -
Before: 45,632
Before-w/upgrade: 45,632
After: 45,632
After-w/upgrade: 45,632
{noformat}
{noformat}
org.apache.geode.internal.cache -
Before: 1,034,624
Before-w/upgrade: 1,034,560
After: 1,065,312
After-w/upgrade: 1,034,224
org.apache.geode.management -
Before: 9,592
Before-w/upgrade: 9,592
After: 28,408
After-w/upgrade: 9,592
org.apache.geode.distributed -
Before: 224,960
Before-w/upgrade: 224,408
After: 256,272
After-w/upgrade: 223,720
{noformat}
{noformat}
io.github.classgraph -
Before: 20,488
Before-w/upgrade: 1,056
After: 56,753,008
After-w/upgrade: 1,056
{noformat}
{noformat}
java -
Before: 38,697,928
Before-w/upgrade: 59,048,552
After: 143,295,448
After-w/upgrade: 52,397,344
sun -
Before: 2,464,792
Before-w/upgrade: 2,593,712
After: 3,359,248
After-w/upgrade: 3,126,280
{noformat}
Class loader comparison:
{noformat}
System class loader -
Before: 356,651 objects, 38,697,928 bytes, 4,295 classes, 3,028 classes w/o
instances
Before-w/upgrade: 883,377 objects, 59,048,552 bytes, 4,344 classes, 3,077
classes w/o instances
After: 1,802,231 objects, 143,295,448 bytes, 8,715 classes, 7,191 classes w/o
instances
After-w/upgrade: 712,102 objects, 52,397,344 bytes, 8,765 classes, 7,461
classes w/o instances
AppClassLoader -
Before: 11,275 objects, 7,020,720 bytes, 2,885 classes, 1,896 classes w/o
instances
Before-w/upgrade: 10,467 objects, 7,068,488 bytes, 2,921 classes, 1,943
classes w/o instances
After: 20,336 objects, 64,013,592 bytes, 2,929 classes, 1,451 classes w/o
instances
After-w/upgrade: 10,988 objects, 7,273,232 bytes, 2,980 classes, 1,980
classes w/o instances
Geode ClassPathLoader$1 -
Before: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o instances
Before-w/upgrade: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o instances
After: 2 Objects, 130,680 bytes, 1 classes, 0 classes w/o instances
After-w/upgrade: 2 objects, 130,680 bytes, 1 classes, 0 classes w/o instances
{noformat}
Reachability comparison (retained size in bytes):
{noformat}
Objects unreachable from GC roots, but not yet collected -
Before: 26,669,744
Before-w/upgrade: 46,758,496
After: 112,345,880
After-w/upgrade: 35,093,072
Objects reachable from GC roots via strong references -
Before: 12,028,184
Before-w/upgrade: 12,290,056
After: 30,949,568
After-w/upgrade: 17,304,272
Objects pending finalization (finalizer queue objects unreachable via strong
references) -
Before: 241,776
Before-w/upgrade: 252,192
After: 13,564,760
After-w/upgrade: 295,160
Objects reachable from GC roots via weak and/or soft references only -
Before: 91,048
Before-w/upgrade: 106,488
After: 586,616
After-w/upgrade: 51,616
{noformat}
was:
According to the source code and documentation, io.github.classgraph.ScanResult
must be closed to avoid memory and file leaks.
I identified a large memory leak that apparently after adding geode-log4j.
Surprisingly the cause ended up being an instance of ScanResult which is used
by the management code to search the classpath for user classes that implement
geode functions or gfsh commands.
Geode currently depends on ClassGraph version 4.0.6, but the library is up to
version 4.8.52 (averaging around a dozen releases per month).
JVM bytes in use by io.github.classgraph after closing all ScanResult instances:
* Before geode-log4j with ClassGraph 4.0.6: 20,488 bytes
* Before geode-log4j with ClassGraph 4.8.52: 1,056 bytes
* After geode-log4j with ClassGraph 4.0.6: 56,753,008 bytes
* After geode-log4j with ClassGraph 4.8.52: 1,056 bytes
Given the above results of my testing, I believe we need to keep this
dependency up-to-date and upgrade to 4.8.52.
----
More detailed analysis below:
Git version shas that were tested:
{noformat}
Before: 802687154131af16d350bf39d152feb4685ba7e6 (sha before geode-log4j)
Before-w/upgrade: Before w/ ClassGraph upgraded from 4.0.6 to 4.8.52
<< Geode-log4j: efc2362d2bae0877a427ce2c29beae94118d6567 (geode-log4j) >>
After: dffcb9446aef09c7bf6e626121f4d2ec5c74586f (async alerts)
After-w/upgrade: After w/ ClassGraph upgraded from 4.0.6 to 4.8.52
{noformat}
Java process memory sizes:
Before:
{noformat}
ChildVMs
22297 java 0.0 00:07.51 32 1 104 252M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22295 java 0.0 00:07.72 32 1 104 259M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22291 java 0.1 00:11.66 32 1 104 291M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22289 java 0.1 00:11.68 32 1 104 300M 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
22287 java 0.5 00:07.67 64 1 168 276M+ 0B 0B
22220 22286 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
22286 java 0.4 00:03.55 67 1 174 184M+ 0B 0B
22220 22220 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
22173 java 0.1 00:01.63 28 1 96 88M+ 0B 0B
22173 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
22220 java 0.6 00:52.27 81 1 201 814M 0B 0B
22220 22173 sleeping *0[1] 0.00000 0.00000 501
{noformat}
Before-w/upgrade:
{noformat}
ChildVMs
25789 java 0.0 00:06.93 31 1 101 257M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25788 java 0.1 00:06.93 31 1 101 259M+ 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25784 java 0.0 00:10.37 31 1 101 286M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25782 java 0.1 00:11.68 31 1 101 278M 0B 0B
25714 25779 sleeping *0[1] 0.00000 0.00000 501
25780 java 0.3 00:07.84 63/1 1 165 308M+ 0B 0B
25714 25779 running *0[1] 0.00000 0.00000 501
GradleWorkerMain
25779 java 0.1 00:03.39 60 1 160 183M 0B 0B
25714 25714 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
25714 java 0.8 00:48.79 79 1 197 793M 0B 0B
25714 25667 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
25667 java 0.2 00:02.16 28 1 96 101M+ 0B 0B
25667 86991 sleeping *0[1] 0.00000 0.00000 501
{noformat}
After:
{noformat}
ChildVMs
21056 java 0.1 00:06.67 31 1 101 256M 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21055 java 0.1 00:06.82 31 1 101 264M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21053 java 0.1 00:15.95 31 1 101 373M 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21051 java 0.3 00:14.96 31 1 101 363M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
21050 java 0.5 00:12.07 63 1 165 343M+ 0B 0B
20988 21049 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
21049 java 0.2 00:06.99 60 1 160 321M+ 0B 0B
20988 20988 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
20941 java 0.2 00:02.14 28 1 96 101M+ 0B 0B
20941 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
20988 java 0.8 00:53.39 81 1 202 963M 0B 0B
20988 20941 sleeping *0[1] 0.00000 0.00000 501
{noformat}
After-w/upgrade:
{noformat}
ChildVMs
24298 java 0.1 00:06.29 32 1 104 250M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24297 java 0.1 00:06.59 32 1 104 262M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24295 java 0.1 00:14.97 32 1 104 362M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24293 java 0.2 00:15.44 32 1 104 376M+ 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
24292 java 0.7 00:10.36 64 1 168 327M 0B 0B
24231 24291 sleeping *0[1] 0.00000 0.00000 501
GradleWorkerMain
24291 java 0.7 00:06.07 67 1 174 320M+ 0B 0B
24231 24231 sleeping *0[1] 0.00000 0.00000 501
GradleWrapperMain
24184 java 0.3 00:01.39 28 1 96 89M+ 0B 0B
24184 86991 sleeping *0[1] 0.00000 0.00000 501
GradleDaemon
24231 java 1.0 00:46.21 81 1 201 805M 0B 0B
24231 24184 sleeping *0[1] 0.00000 0.00000 501
{noformat}
Biggest objects - Dominators comparison (retained size in bytes):
{noformat}
Before:
sun.misc.Launcher$AppClassLoader - 883,984
Before-w/upgrade:
sun.misc.Launcher$AppClassLoader - 915,384
After:
io.github.classgraph.ScanResult - 11,373,088
After-w/upgrade:
sun.misc.Launcher$AppClassLoader - 1,256,904
{noformat}
Class and package comparison (retained size in bytes):
{noformat}
org.apache.geode.internal.logging -
Before: 253,520
Before-w/upgrade: 253,520
After: 33,576
After-w/upgrade: 21,152
org.apache.geode.logging -
Before: 0
Before-w/upgrade: 0
After: 233,104
After-w/upgrade: 231,968
org.apache.logging.log4j -
Before: 581,184
Before-w/upgrade: 581,184
After: 605,904
After-w/upgrade: 584,576
java.util.logging -
Before: 45,632
Before-w/upgrade: 45,632
After: 45,632
After-w/upgrade: 45,632
{noformat}
{noformat}
org.apache.geode.internal.cache -
Before: 1,034,624
Before-w/upgrade: 1,034,560
After: 1,065,312
After-w/upgrade: 1,034,224
org.apache.geode.management -
Before: 9,592
Before-w/upgrade: 9,592
After: 28,408
After-w/upgrade: 9,592
org.apache.geode.distributed -
Before: 224,960
Before-w/upgrade: 224,408
After: 256,272
After-w/upgrade: 223,720
{noformat}
{noformat}
io.github.classgraph -
Before: 20,488
Before-w/upgrade: 1,056
After: 56,753,008
After-w/upgrade: 1,056
{noformat}
{noformat}
java -
Before: 38,697,928
Before-w/upgrade: 59,048,552
After: 143,295,448
After-w/upgrade: 52,397,344
sun -
Before: 2,464,792
Before-w/upgrade: 2,593,712
After: 3,359,248
After-w/upgrade: 3,126,280
{noformat}
Class loader comparison:
{noformat}
System class loader -
Before: 356,651 objects, 38,697,928 bytes, 4,295 classes, 3,028 classes w/o
instances
Before-w/upgrade: 883,377 objects, 59,048,552 bytes, 4,344 classes, 3,077
classes w/o instances
After: 1,802,231 objects, 143,295,448 bytes, 8,715 classes, 7,191 classes w/o
instances
After-w/upgrade: 712,102 objects, 52,397,344 bytes, 8,765 classes, 7,461
classes w/o instances
AppClassLoader -
Before: 11,275 objects, 7,020,720 bytes, 2,885 classes, 1,896 classes w/o
instances
Before-w/upgrade: 10,467 objects, 7,068,488 bytes, 2,921 classes, 1,943
classes w/o instances
After: 20,336 objects, 64,013,592 bytes, 2,929 classes, 1,451 classes w/o
instances
After-w/upgrade: 10,988 objects, 7,273,232 bytes, 2,980 classes, 1,980
classes w/o instances
Geode ClassPathLoader$1 -
Before: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o instances
Before-w/upgrade: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o instances
After: 2 Objects, 130,680 bytes, 1 classes, 0 classes w/o instances
After-w/upgrade: 2 objects, 130,680 bytes, 1 classes, 0 classes w/o instances
{noformat}
Reachability comparison:
{noformat}
Objects unreachable from GC roots, but not yet collected -
Before: 26,669,744
Before-w/upgrade: 46,758,496
After: 112,345,880
After-w/upgrade: 35,093,072
Objects reachable from GC roots via strong references -
Before: 12,028,184
Before-w/upgrade: 12,290,056
After: 30,949,568
After-w/upgrade: 17,304,272
Objects pending finalization (finalizer queue objects unreachable via strong
references) -
Before: 241,776
Before-w/upgrade: 252,192
After: 13,564,760
After-w/upgrade: 295,160
Objects reachable from GC roots via weak and/or soft references only -
Before: 91,048
Before-w/upgrade: 106,488
After: 586,616
After-w/upgrade: 51,616
{noformat}
> ClassGraph library causes large memory leak in Geode after adding geode-log4j
> -----------------------------------------------------------------------------
>
> Key: GEODE-7370
> URL: https://issues.apache.org/jira/browse/GEODE-7370
> Project: Geode
> Issue Type: Bug
> Components: management
> Reporter: Kirk Lund
> Assignee: Kirk Lund
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> According to the source code and documentation,
> io.github.classgraph.ScanResult must be closed to avoid memory and file leaks.
> I identified a large memory leak that apparently after adding geode-log4j.
> Surprisingly the cause ended up being an instance of ScanResult which is used
> by the management code to search the classpath for user classes that
> implement geode functions or gfsh commands.
> Geode currently depends on ClassGraph version 4.0.6, but the library is up to
> version 4.8.52 (averaging around a dozen releases per month).
> JVM bytes in use by io.github.classgraph after closing all ScanResult
> instances:
> * Before geode-log4j with ClassGraph 4.0.6: 20,488 bytes
> * Before geode-log4j with ClassGraph 4.8.52: 1,056 bytes
> * After geode-log4j with ClassGraph 4.0.6: 56,753,008 bytes
> * After geode-log4j with ClassGraph 4.8.52: 1,056 bytes
> Given the above results of my testing, I believe we need to keep this
> dependency up-to-date and upgrade to 4.8.52.
> ----
> More detailed analysis below:
> Git version shas that were tested:
> {noformat}
> Before: 802687154131af16d350bf39d152feb4685ba7e6 (sha before geode-log4j)
> Before-w/upgrade: Before w/ ClassGraph upgraded from 4.0.6 to 4.8.52
> << Geode-log4j: efc2362d2bae0877a427ce2c29beae94118d6567 (geode-log4j) >>
> After: dffcb9446aef09c7bf6e626121f4d2ec5c74586f (async alerts)
> After-w/upgrade: After w/ ClassGraph upgraded from 4.0.6 to 4.8.52
> {noformat}
> Java process memory sizes:
> Before:
> {noformat}
> ChildVMs
> 22297 java 0.0 00:07.51 32 1 104 252M 0B 0B
> 22220 22286 sleeping *0[1] 0.00000 0.00000 501
> 22295 java 0.0 00:07.72 32 1 104 259M 0B 0B
> 22220 22286 sleeping *0[1] 0.00000 0.00000 501
> 22291 java 0.1 00:11.66 32 1 104 291M 0B 0B
> 22220 22286 sleeping *0[1] 0.00000 0.00000 501
> 22289 java 0.1 00:11.68 32 1 104 300M 0B 0B
> 22220 22286 sleeping *0[1] 0.00000 0.00000 501
> 22287 java 0.5 00:07.67 64 1 168 276M+ 0B 0B
> 22220 22286 sleeping *0[1] 0.00000 0.00000 501
> GradleWorkerMain
> 22286 java 0.4 00:03.55 67 1 174 184M+ 0B 0B
> 22220 22220 sleeping *0[1] 0.00000 0.00000 501
> GradleWrapperMain
> 22173 java 0.1 00:01.63 28 1 96 88M+ 0B 0B
> 22173 86991 sleeping *0[1] 0.00000 0.00000 501
> GradleDaemon
> 22220 java 0.6 00:52.27 81 1 201 814M 0B 0B
> 22220 22173 sleeping *0[1] 0.00000 0.00000 501
> {noformat}
> Before-w/upgrade:
> {noformat}
> ChildVMs
> 25789 java 0.0 00:06.93 31 1 101 257M 0B 0B
> 25714 25779 sleeping *0[1] 0.00000 0.00000 501
> 25788 java 0.1 00:06.93 31 1 101 259M+ 0B 0B
> 25714 25779 sleeping *0[1] 0.00000 0.00000 501
> 25784 java 0.0 00:10.37 31 1 101 286M 0B 0B
> 25714 25779 sleeping *0[1] 0.00000 0.00000 501
> 25782 java 0.1 00:11.68 31 1 101 278M 0B 0B
> 25714 25779 sleeping *0[1] 0.00000 0.00000 501
> 25780 java 0.3 00:07.84 63/1 1 165 308M+ 0B 0B
> 25714 25779 running *0[1] 0.00000 0.00000 501
> GradleWorkerMain
> 25779 java 0.1 00:03.39 60 1 160 183M 0B 0B
> 25714 25714 sleeping *0[1] 0.00000 0.00000 501
> GradleDaemon
> 25714 java 0.8 00:48.79 79 1 197 793M 0B 0B
> 25714 25667 sleeping *0[1] 0.00000 0.00000 501
> GradleWrapperMain
> 25667 java 0.2 00:02.16 28 1 96 101M+ 0B 0B
> 25667 86991 sleeping *0[1] 0.00000 0.00000 501
> {noformat}
> After:
> {noformat}
> ChildVMs
> 21056 java 0.1 00:06.67 31 1 101 256M 0B 0B
> 20988 21049 sleeping *0[1] 0.00000 0.00000 501
> 21055 java 0.1 00:06.82 31 1 101 264M+ 0B 0B
> 20988 21049 sleeping *0[1] 0.00000 0.00000 501
> 21053 java 0.1 00:15.95 31 1 101 373M 0B 0B
> 20988 21049 sleeping *0[1] 0.00000 0.00000 501
> 21051 java 0.3 00:14.96 31 1 101 363M+ 0B 0B
> 20988 21049 sleeping *0[1] 0.00000 0.00000 501
> 21050 java 0.5 00:12.07 63 1 165 343M+ 0B 0B
> 20988 21049 sleeping *0[1] 0.00000 0.00000 501
> GradleWorkerMain
> 21049 java 0.2 00:06.99 60 1 160 321M+ 0B 0B
> 20988 20988 sleeping *0[1] 0.00000 0.00000 501
> GradleWrapperMain
> 20941 java 0.2 00:02.14 28 1 96 101M+ 0B 0B
> 20941 86991 sleeping *0[1] 0.00000 0.00000 501
> GradleDaemon
> 20988 java 0.8 00:53.39 81 1 202 963M 0B 0B
> 20988 20941 sleeping *0[1] 0.00000 0.00000 501
> {noformat}
> After-w/upgrade:
> {noformat}
> ChildVMs
> 24298 java 0.1 00:06.29 32 1 104 250M 0B 0B
> 24231 24291 sleeping *0[1] 0.00000 0.00000 501
> 24297 java 0.1 00:06.59 32 1 104 262M 0B 0B
> 24231 24291 sleeping *0[1] 0.00000 0.00000 501
> 24295 java 0.1 00:14.97 32 1 104 362M 0B 0B
> 24231 24291 sleeping *0[1] 0.00000 0.00000 501
> 24293 java 0.2 00:15.44 32 1 104 376M+ 0B 0B
> 24231 24291 sleeping *0[1] 0.00000 0.00000 501
> 24292 java 0.7 00:10.36 64 1 168 327M 0B 0B
> 24231 24291 sleeping *0[1] 0.00000 0.00000 501
> GradleWorkerMain
> 24291 java 0.7 00:06.07 67 1 174 320M+ 0B 0B
> 24231 24231 sleeping *0[1] 0.00000 0.00000 501
> GradleWrapperMain
> 24184 java 0.3 00:01.39 28 1 96 89M+ 0B 0B
> 24184 86991 sleeping *0[1] 0.00000 0.00000 501
> GradleDaemon
> 24231 java 1.0 00:46.21 81 1 201 805M 0B 0B
> 24231 24184 sleeping *0[1] 0.00000 0.00000 501
> {noformat}
> Biggest objects - Dominators comparison (retained size in bytes):
> {noformat}
> Before:
> sun.misc.Launcher$AppClassLoader - 883,984
> Before-w/upgrade:
> sun.misc.Launcher$AppClassLoader - 915,384
> After:
> io.github.classgraph.ScanResult - 11,373,088
> After-w/upgrade:
> sun.misc.Launcher$AppClassLoader - 1,256,904
> {noformat}
> Class and package comparison (retained size in bytes):
> {noformat}
> org.apache.geode.internal.logging -
> Before: 253,520
> Before-w/upgrade: 253,520
> After: 33,576
> After-w/upgrade: 21,152
> org.apache.geode.logging -
> Before: 0
> Before-w/upgrade: 0
> After: 233,104
> After-w/upgrade: 231,968
> org.apache.logging.log4j -
> Before: 581,184
> Before-w/upgrade: 581,184
> After: 605,904
> After-w/upgrade: 584,576
> java.util.logging -
> Before: 45,632
> Before-w/upgrade: 45,632
> After: 45,632
> After-w/upgrade: 45,632
> {noformat}
> {noformat}
> org.apache.geode.internal.cache -
> Before: 1,034,624
> Before-w/upgrade: 1,034,560
> After: 1,065,312
> After-w/upgrade: 1,034,224
> org.apache.geode.management -
> Before: 9,592
> Before-w/upgrade: 9,592
> After: 28,408
> After-w/upgrade: 9,592
> org.apache.geode.distributed -
> Before: 224,960
> Before-w/upgrade: 224,408
> After: 256,272
> After-w/upgrade: 223,720
> {noformat}
> {noformat}
> io.github.classgraph -
> Before: 20,488
> Before-w/upgrade: 1,056
> After: 56,753,008
> After-w/upgrade: 1,056
> {noformat}
> {noformat}
> java -
> Before: 38,697,928
> Before-w/upgrade: 59,048,552
> After: 143,295,448
> After-w/upgrade: 52,397,344
> sun -
> Before: 2,464,792
> Before-w/upgrade: 2,593,712
> After: 3,359,248
> After-w/upgrade: 3,126,280
> {noformat}
> Class loader comparison:
> {noformat}
> System class loader -
> Before: 356,651 objects, 38,697,928 bytes, 4,295 classes, 3,028 classes w/o
> instances
> Before-w/upgrade: 883,377 objects, 59,048,552 bytes, 4,344 classes, 3,077
> classes w/o instances
> After: 1,802,231 objects, 143,295,448 bytes, 8,715 classes, 7,191 classes
> w/o instances
> After-w/upgrade: 712,102 objects, 52,397,344 bytes, 8,765 classes, 7,461
> classes w/o instances
> AppClassLoader -
> Before: 11,275 objects, 7,020,720 bytes, 2,885 classes, 1,896 classes w/o
> instances
> Before-w/upgrade: 10,467 objects, 7,068,488 bytes, 2,921 classes, 1,943
> classes w/o instances
> After: 20,336 objects, 64,013,592 bytes, 2,929 classes, 1,451 classes w/o
> instances
> After-w/upgrade: 10,988 objects, 7,273,232 bytes, 2,980 classes, 1,980
> classes w/o instances
> Geode ClassPathLoader$1 -
> Before: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o instances
> Before-w/upgrade: 2 objects, 130,480 bytes, 1 classes, 0 classes w/o
> instances
> After: 2 Objects, 130,680 bytes, 1 classes, 0 classes w/o instances
> After-w/upgrade: 2 objects, 130,680 bytes, 1 classes, 0 classes w/o
> instances
> {noformat}
> Reachability comparison (retained size in bytes):
> {noformat}
> Objects unreachable from GC roots, but not yet collected -
> Before: 26,669,744
> Before-w/upgrade: 46,758,496
> After: 112,345,880
> After-w/upgrade: 35,093,072
> Objects reachable from GC roots via strong references -
> Before: 12,028,184
> Before-w/upgrade: 12,290,056
> After: 30,949,568
> After-w/upgrade: 17,304,272
> Objects pending finalization (finalizer queue objects unreachable via strong
> references) -
> Before: 241,776
> Before-w/upgrade: 252,192
> After: 13,564,760
> After-w/upgrade: 295,160
> Objects reachable from GC roots via weak and/or soft references only -
> Before: 91,048
> Before-w/upgrade: 106,488
> After: 586,616
> After-w/upgrade: 51,616
> {noformat}
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