odo log -f terminates earlier

[amitkrout]

/kind bug
/kind flake

What versions of software are you using?

Operating System:
supported
Output of odo version:
master

How did you run odo exactly?

This is hit in the CI. You can also reproduce it locally by running the spec (keep trying until you reproduce it)

Spec : https://github.com/openshift/odo/blob/master/tests/integration/devfile/cmd_devfile_log_test.go#L51

CI failure at line : https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/openshift_odo/3601/pull-ci-openshift-odo-master-v4.2-integration-e2e/1285441618282811392#1:build-log.txt%3A94332

Actual behavior

 Running odo with args [odo log -f]
[odo] I0721 07:11:31.820487    6939 preference.go:196] The path for preference file is /tmp/187530165/config.yaml
[odo] I0721 07:11:31.820763    6939 preference.go:196] The path for preference file is /tmp/187530165/config.yaml 

Expected behavior

program=devrun should be listed in the log output

Any logs, error output, etc?

https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/openshift_odo/3601/pull-ci-openshift-odo-master-v4.2-integration-e2e/1285441618282811392#1:build-log.txt%3A94345

[girishramnani]

the one approach that will work here is to increase the timeout - maybe 5s to be safe?

[girishramnani]

we could do something super intelligent like check between each 0.5s that the buffer size of the command has increased or not, if it hasn't that means the odo log -f has reached the end but I mean for what gain? 2-3s?

[amitkrout]

Refer - #3613 (comment)

[kadel]

/assign

[prietyc123]

One more occurence - https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/openshift_release/10346/rehearse-10346-periodic-ci-openshift-odo-master-v4.6-integration-e2e-periodic/1292828790027718656#1:build-log.txt%3A748

[amitkrout]

Latest update - #3613 (comment)