Bug 1705318

Summary:	Ulimit too low during builds
Product:	OpenShift Container Platform	Reporter:	Adam Kaplan <adam.kaplan>
Component:	Containers	Assignee:	Daniel Walsh <dwalsh>
Status:	CLOSED ERRATA	QA Contact:	weiwei jiang <wjiang>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.1.0	CC:	aos-bugs, dwalsh, ekuric, gblomqui, jmencak, jokerman, mmccomas, nalin
Target Milestone:	---
Target Release:	4.1.0
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-06-04 10:48:19 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Adam Kaplan 2019-05-02 01:35:21 UTC

Description of problem:
We've been testing out our Web App image on Openshift 4(running on AWS) lately, and i've come across an issue that i was hoping you might be able to help with or even point me in the right direction.

I've been using this app as an example, https://github.com/lholmquist/react-web-app

Basically, the problem is during the build phase, specifically during the "npm install".

The error returned is "EMFILE: too many open files", which relates to the "ulimit" that is set.  That value inside the build pod of "ulimit -n" is "1024",  which is pretty low.  I've noticed that on Openshift 3.x(Online) that same value is a lot higher, "1048676", so the error never happens there.

I've tried to set the ulimit in my assemble script for the s2i image, but that returns a permission error, which i sort of expected.

So i guess my question is, is it possible to increase the ulimit value from an s2i image,  or is this something that needs to be set when openshift is created?

Version-Release number of selected component (if applicable): 4.1.0-0.nightly-2019-04-28-064010


How reproducible: Always


Steps to Reproduce:
Start an s2i build using the latest nodejs imagestream tag and https://github.com/lholmquist/react-web-app as the source


Actual results:
Build fails with EMFILE: too many open files

Expected results:
Build should succeed

Comment 1 Nalin Dahyabhai 2019-05-02 02:11:36 UTC

Thanks for narrowing down where to look!  Opened https://github.com/openshift/builder/pull/69.

Comment 4 weiwei jiang 2019-05-06 09:40:25 UTC

Checked and this issue is fixed, s2i work well with `npm install` for `oc new-app nodejs~https://github.com/lholmquist/react-web-app`
# openshift-sti-build version 
openshift-sti-build v4.1.0-201905032232+59e5dc1-dirty

# oc get clusterversion 
NAME      VERSION                             AVAILABLE   PROGRESSING   SINCE   STATUS
version   4.1.0-0.nightly-2019-05-05-070156   True        False         15m     Cluster version is 4.1.0-0.nightly-2019-05-05-070156

# oc get nodes -o wide 
NAME                                              STATUS   ROLES    AGE   VERSION             INTERNAL-IP    EXTERNAL-IP   OS-IMAGE                                                   KERNEL-VERSION         CONTAINER-RUNTIME
ip-10-0-133-56.ap-northeast-1.compute.internal    Ready    worker   23m   v1.13.4+db7b699c3   10.0.133.56    <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8
ip-10-0-137-75.ap-northeast-1.compute.internal    Ready    master   33m   v1.13.4+db7b699c3   10.0.137.75    <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8
ip-10-0-149-8.ap-northeast-1.compute.internal     Ready    worker   23m   v1.13.4+db7b699c3   10.0.149.8     <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8
ip-10-0-158-112.ap-northeast-1.compute.internal   Ready    master   33m   v1.13.4+db7b699c3   10.0.158.112   <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8
ip-10-0-169-206.ap-northeast-1.compute.internal   Ready    worker   23m   v1.13.4+db7b699c3   10.0.169.206   <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8
ip-10-0-174-121.ap-northeast-1.compute.internal   Ready    master   33m   v1.13.4+db7b699c3   10.0.174.121   <none>        Red Hat Enterprise Linux CoreOS 410.8.20190505.0 (Ootpa)   4.18.0-80.el8.x86_64   cri-o://1.13.9-1.rhaos4.1.gitd70609a.el8

Comment 6 errata-xmlrpc 2019-06-04 10:48:19 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:0758