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| # clear all messages in kafka topics by temorarily changing retention time in (in ms) | |
| # doing this with kafka-topics.sh may be deprecated in future | |
| MS=1000 | |
| IP=127.0.0.1 | |
| for topic in `./kafka-topics.sh --list --zookeeper $IP:2181` ; do ./kafka-topics.sh --zookeeper $IP:2181 --alter --topic $topic --config retention.ms=$MS ; done | |
| MS=259200000 | |
| ... | |
| # show consumer groups | |
| ./kafka-consumer-groups.sh --zookeeper $IP:2181 --list | |
| # show actual offsets in kafka | |
| ./kafka-run-class.sh kafka.tools.GetOffsetShell --broker-list $IP:9092 --topic $TOPIC --time -1 --offsets 1 | |
| # show offsets in zookeeper for particular consumer group | |
| ./zookeeper-shell.sh $IP:2181 | |
| # /consumers/$GROUP/offsets/$TOPIC/$PARTITION | |
| > get /consumers/kafka-node-group/offsets/asd/0 | |
| # change offset to something more appropriate | |
| > set /consumers/kafka-node-group/offsets/asd/0 12345 |
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