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Posted to commits@brooklyn.apache.org by al...@apache.org on 2015/11/17 12:29:05 UTC
[1/2] incubator-brooklyn git commit: Add `Common problems' in the
documentation
Repository: incubator-brooklyn
Updated Branches:
refs/heads/master bc54d1d18 -> c48109a89
Add `Common problems' in the documentation
Project: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/commit/2da9daea
Tree: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/tree/2da9daea
Diff: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/diff/2da9daea
Branch: refs/heads/master
Commit: 2da9daea976e8d1bcf84e6fefcb8f8aba251e146
Parents: cc30e6f
Author: Valentin Aitken <va...@cloudsoftcorp.com>
Authored: Tue Nov 10 15:50:45 2015 +0200
Committer: Valentin Aitken <va...@cloudsoftcorp.com>
Committed: Tue Nov 17 12:02:24 2015 +0200
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docs/website/documentation/faq.md | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
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http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/blob/2da9daea/docs/website/documentation/faq.md
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diff --git a/docs/website/documentation/faq.md b/docs/website/documentation/faq.md
index 25d3864..7af5f80 100644
--- a/docs/website/documentation/faq.md
+++ b/docs/website/documentation/faq.md
@@ -20,3 +20,31 @@ Supplying the answers are a TODO.
## How do I supply answers?
Click the "Edit this Page" link in the bottom right.
+
+
+# Common Problems:
+
+## java.lang.OutOfMemoryError: unable to create new native thread
+
+You could encounter this error when running with many entities.
+
+Please **increase the ulimit** if you see such error:
+
+On the VM running Apache Brooklyn, we recommend ensuring nproc and nofile are reasonably high (e.g. higher than 1024, which is often the default).
+We recommend setting it limits to a value above 16000.
+
+If you want to check the current limits run `ulimit -a`.
+
+Here are instructions for how to increase the limits for RHEL like distributions.
+Run `sudo vi /etc/security/limits.conf` and add (if it is "brooklyn" user running Apache Brooklyn):
+
+ brooklyn soft nproc 16384
+ brooklyn hard nproc 16384
+ brooklyn soft nofile 16384
+ brooklyn hard nofile 16384
+
+
+Generally you do not have to reboot to apply ulimit values. They are set per session.
+So after you have the correct values, quit the ssh session and log back in.
+
+For more details, see one of the many posts such as http://tuxgen.blogspot.co.uk/2014/01/centosrhel-ulimit-and-maximum-number-of.html
[2/2] incubator-brooklyn git commit: This closes #1015
Posted by al...@apache.org.
This closes #1015
Project: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/commit/c48109a8
Tree: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/tree/c48109a8
Diff: http://git-wip-us.apache.org/repos/asf/incubator-brooklyn/diff/c48109a8
Branch: refs/heads/master
Commit: c48109a89e200328a6d5d6bebb11ce43f0c0bf7c
Parents: bc54d1d 2da9dae
Author: Aled Sage <al...@gmail.com>
Authored: Tue Nov 17 11:28:47 2015 +0000
Committer: Aled Sage <al...@gmail.com>
Committed: Tue Nov 17 11:28:47 2015 +0000
----------------------------------------------------------------------
docs/website/documentation/faq.md | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
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