Am 06.11.2018 um 10:10 schrieb Rathore, Rajendra:
Hi Rainer/Chris,
I tried below command, it also fails with same error,
Please find attached output of strace command, I am unable to found any help
from that file or I might not have much idea about it, can you please check it
and let me know your finding, mean while is there any way to run the jspc
command in single thread model like 8.5.32 tomcat version.
I see
10807 clone(child_stack=0x7f53af001fb0,
flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID,
parent_tidptr=0x7f53af0029d0, tls=0x7f53af002700,
child_tidptr=0x7f53af0029d0) = -1 EAGAIN (Resource temporarily unavailable)
I'm not sure, whether that is actualy the same error that you eported
originally "unable to create new native thread" or whether you now got a
different error logged?
The man pages for the clone() system call says:
EAGAIN Too many processes are already running; see fork(2)
and the fork() man page says:
EAGAIN fork() cannot allocate sufficient memory to copy the parent's
page tables and allocate a task structure for the child.
EAGAIN It was not possible to create a new process because the
caller's RLIMIT_NPROC resource limit was encountered. To exceed this
limit, the process must have either the CAP_SYS_ADMIN or the
CAP_SYS_RESOURCE capability.
So I would - as already mentioned - check you nproc limit (output of
"ulimit -u" and "ulimit -u -h") and I would also *reduce* the heap size
a lot.
Regards,
Rainer
Thanks and Regards,
Rajendra Rathore
9922701491
-----Original Message-----
From: Christopher Schultz <ch...@christopherschultz.net>
Sent: 02 November 2018 06:48 PM
To: users@tomcat.apache.org
Subject: Re: precompile JSPs failure issue - Tomcat community
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Rainer,
On 11/2/18 06:20, Rainer Jung wrote:
You can control the number of threads using -threadCount. By default
the number is equals to the number of cores the operating system show
to the JVM.
x 2
You might want to use a smaller number to see whether that helps.
I suggest you also check your Linux system limits on processes per
user. That system limit on Linux in fact limits threads per user.
So if such a limit is set and your user has other processes with many
threads running, you might need to increase this limit.
In addition you can run your ant process with
strace -f -o /var/tmp/strace.out HERE_COMES_YOUR_ANT_COMMAND &
Then after you get the error, you can check the strace.out file for
system call errors. The file will be big, but most probably the error
is relatively close to the end.
- -chris
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