CODEWITHSUNDEEP
shapache-zookeeper
Vrushank Doshi
Vrushank Doshi

Reputation: 2608

Shell script to delete znodes(Zookeeper)

i am trying to create a shell script which will delete my znodes. Here is the command:

echo "ls /" | zookeeper-client
echo "rmr /collections" | zookeeper-client

There are many such nodes i want to delete. Whenever i execute the above commands, sometimes it successfully delete the collections node and sometime it throws error. The reason i found is whenever we run "zookeeper-client" through a shell script, it takes time for the zookeeper shell to come up. Is there any way i can delete such nodes ?

Any help will be appreciated.

Thanks.

Upvotes: 0

Views: 2713

Answers (2)

Deepak Dixit
Deepak Dixit

Reputation: 36

You can delete with this zookeeper-client rmr

e.g zookeeper-client rmr /test

Upvotes: 2

Charles Duffy
Charles Duffy

Reputation: 295403

The amount of hackery here is horrendous -- I'm having trouble retaining any self-respect after writing the below.

Please, please use a different language rather than adopting the below collection of awful hacks.

IFS=$'\n ' read -r -d '' -a names \
  < <(./cli_st 127.0.0.1:2181 < <(sleep 1; echo 'ls /'; sleep 1) 2>&1 | grep '^[[:space:]]')
./cli_st 127.0.0.1:2181 < <(sleep 1; printf 'rmr %s\n' "${names[@]}"; sleep 1; )

cli_st, here, is the command-line client included in the Zookeeper codebase's C-language bits.

Upvotes: 0

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