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Add performance-data-setup.sh and usage doc #652

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14 changes: 14 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@
- [Logging](#logging)
- [Session Caching](#session-caching)
- [Applying Interim Fixes](#applying-interim-fixes)
- [Running Liberty MustGather](#running-liberty-mustgather)
- [Known Issues](#known-issues)
- [Generating system dumps for pods in Kubernetes](#generating-system-dumps-for-pods-in-kubernetes)
- [Contributions](#contributions)
Expand Down Expand Up @@ -265,6 +266,19 @@ The Liberty session caching feature builds on top of an existing technology call

The process to apply interim fixes (iFix) is defined [here](releases/applying-ifixes/README.md).

## Running Liberty MustGather

The [Liberty MustGather script](https://www.ibm.com/support/pages/mustgather-performance-hang-or-high-cpu-issues-liberty-linux) can be run within your container to collect critical data for debugging issues relating to performance degradation, hang, no response, hung threads, CPU starvation, high CPU utilization, or deadlocks with Liberty on Linux.

Include the following snippet into your Dockerfile definition to install the required packages for running `linperf.sh` in the Liberty container.

```
# Temporarily provide root access to install required packages
USER 0
RUN performance-data-setup.sh
USER 1001
```

## Known Issues

### Generating system dumps for pods in Kubernetes
Expand Down
14 changes: 14 additions & 0 deletions releases/latest/beta/helpers/build/performance-data-setup.sh
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@@ -0,0 +1,14 @@
#!/bin/bash

. /opt/ol/helpers/build/internal/logger.sh

set -Eeox pipefail

pkgcmd=yum
if ! command $pkgcmd
then
pkgcmd=microdnf
fi

$pkgcmd update -y
$pkgcmd install -y procps-ng net-tools ncurses hostname
14 changes: 14 additions & 0 deletions releases/latest/full/helpers/build/performance-data-setup.sh
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
#!/bin/bash

. /opt/ol/helpers/build/internal/logger.sh

set -Eeox pipefail

pkgcmd=yum
if ! command $pkgcmd
then
pkgcmd=microdnf
fi

$pkgcmd update -y
$pkgcmd install -y procps-ng net-tools ncurses hostname
14 changes: 14 additions & 0 deletions releases/latest/kernel-slim/helpers/build/performance-data-setup.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
#!/bin/bash

. /opt/ol/helpers/build/internal/logger.sh

set -Eeox pipefail

pkgcmd=yum
if ! command $pkgcmd
then
pkgcmd=microdnf
fi

$pkgcmd update -y
$pkgcmd install -y procps-ng net-tools ncurses hostname