Search Head Cluster bundle push failed with error Network-layer error: Read Timeout

[sat94541]

Issue: We are on Splunk version 6.6.3 and when we push the Search Head Cluster Bundle from the Deployer to Search Head Cluster Member it fails with error

Deployer's "splunk apply shcluster-bundle" output
{noformat}
[splunk662T]# ./bin/splunk apply shcluster-bundle -target "https://10.140.54.186:55821"
Warning: Depending on the configuration changes being pushed, this command might initiate a rolling restart of the cluster members.

Please refer to the documentation for the details. Do you wish to continue? [y/n]: y

Error while deploying apps to first member: Error while updating app=unix on target=https://10.140.54.187:55821: Network-layer error: Read Timeout

[rbal_splunk]

The workaround is to disable conditional expansion by setting following on the deployer and the Search Head.
[search]
enable_conditional_expansion=false

[traxxasbreaker]

Which file would those be set in? The [search] stanza sounds like limits.conf but I don't see this setting in the spec.

When we hit this problem restarting the deployer seems to help but a solution that doesn't require waiting for it to fail and restarting would be much better.