[opc@ci-iad-mat-lab-01 mat]$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 239754
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 4096
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
[opc@ci-iad-mat-lab-01 mat]$
Hprof file size is : 77GB
MAT version : 1.11
And its failing after this step "Re-indexing outbound index"
[Task: Parsing /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.hprof
[
Subtask: Scanning /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.hprof
[....................
[INFO] Wrote threads call stacks to /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.threads
[....................
[INFO] Heap /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.hprof contains 1,168,946,725 objects
[....................
Subtask: Extracting objects from /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.hprof
[................................................................................Task: Removing unreachable objects
[
Subtask: Searching for unreachable objects
[
Subtask: Marking reachable objects
[.
Subtask: Re-indexing objects
[.
[INFO] Removed 72,901,319 unreachable objects using 6,692,864,976 bytes
[..
Subtask: Re-indexing classes
[...
Subtask: Writing /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.idx.index
[....
Subtask: Writing /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.o2c.index
[.....
Subtask: Writing /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.a2s.index
[......
Subtask: Re-indexing outbound index
[......]
eclipse.buildId=unknown
java.version=1.8.0_292
java.vendor=Red Hat, Inc.
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -application org.eclipse.mat.api.parse -DhprofStrictnessWarning=true ../../sacbay-m-big77GB.hprof org.eclipse.mat.api:suspects org.eclipse.mat.api:top_components org.eclipse.mat.api:overview
Command-line arguments: -os linux -ws gtk -arch x86_64 -consolelog -application org.eclipse.mat.api.parse -DhprofStrictnessWarning=true ../../sacbay-m-big77GB.hprof org.eclipse.mat.api:suspects org.eclipse.mat.api:top_components org.eclipse.mat.api:overview
!ENTRY org.eclipse.osgi 4 0 2021-07-07 05:32:46.312
!MESSAGE Application error
!STACK 1
org.eclipse.mat.SnapshotException: Error opening heap dump 'sacbay-m-big77GB.hprof'. Check the error log for further details.
at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.parse(SnapshotFactoryImpl.java:331)
at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.openSnapshot(SnapshotFactoryImpl.java:167)
at org.eclipse.mat.snapshot.SnapshotFactory.openSnapshot(SnapshotFactory.java:147)
at org.eclipse.mat.internal.apps.ParseSnapshotApp.parse(ParseSnapshotApp.java:138)
at org.eclipse.mat.internal.apps.ParseSnapshotApp.start(ParseSnapshotApp.java:110)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
at org.eclipse.equinox.launcher.Main.run(Main.java:1447)
at org.eclipse.equinox.launcher.Main.main(Main.java:1420)
Caused by: java.io.FileNotFoundException: /mat-work/nikhil/MAT1.11_Normal/mat/../../sacbay-m-big77GB.inbound.index3096.log (Too many open files)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
at org.eclipse.mat.parser.index.IndexWriter$InboundWriter.log(IndexWriter.java:1237)
at org.eclipse.mat.parser.internal.GarbageCleaner.clean(GarbageCleaner.java:360)
at org.eclipse.mat.parser.internal.SnapshotFactoryImpl.parse(SnapshotFactoryImpl.java:282)
... 17 more