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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 11 |
1 files changed, 4 insertions, 7 deletions
@@ -24,18 +24,13 @@ kubectl -n kafka get pvc ## Set up Zookeeper -The Kafka book (Definitive Guide, O'Reilly 2016) recommends that Kafka has its own Zookeeper cluster with at least 5 instances, -so we use the [official docker image](https://hub.docker.com/_/zookeeper/) -but with a [startup script change to guess node id from hostname](https://github.com/solsson/zookeeper-docker/commit/df9474f858ad548be8a365cb000a4dd2d2e3a217). +The Kafka book (Definitive Guide, O'Reilly 2016) recommends that Kafka has its own Zookeeper cluster with at least 5 instances. +We use the zookeeper build that comes with the Kafka distribution, and tweak the startup command to support StatefulSet. ``` kubectl create -f ./zookeeper/ ``` -Despite being a StatefulSet, there is no persistent volume by default. -If you lose your zookeeper cluster, kafka will be unaware that persisted topics exist. -The data is still there, but you need to re-create topics. - ## Start Kafka Assuming you have your PVCs `Bound`, or enabled automatic provisioning (see above), go ahead and: @@ -85,4 +80,6 @@ Is the metrics system up and running? ``` kubectl logs -c metrics kafka-0 kubectl exec -c broker kafka-0 -- /bin/sh -c 'apk add --no-cache curl && curl http://localhost:5556/metrics' +kubectl logs -c metrics zoo-0 +kubectl exec -c zookeeper zoo-0 -- /bin/sh -c 'apk add --no-cache curl && curl http://localhost:5556/metrics' ``` |