question Re: how to generate tag number by API in Archives of Support Questions (Read Only)

how to generate tag number by API

mike_bronson7 — Sun, 27 May 2018 22:08:28 GMT

we want to post the new config to ambari

but we need uniq tag number that not exist in ambari

how to generate new tag number by API or other approach , so we can put it after "tag" ? as - 237432322

curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '[
  {
    "Clusters": {
      "desired_config": [
        {
          "type": "kafka-env",
          "tag": "237432322",
          "properties": {

Re: how to generate tag number by API

sandyy006 — Mon, 28 May 2018 00:19:10 GMT

@Michael Bronson

You can use the current epoch timestamp as tag.

configs.py internally uses the same.

In python: "version"+str(int(time.time() * 1000000)) tag will be something like : "version1527441356254688"

Re: how to generate tag number by API

mike_bronson7 — Mon, 28 May 2018 00:30:19 GMT

can you please give real example ?

Re: how to generate tag number by API

sandyy006 — Mon, 28 May 2018 00:50:25 GMT

curl -u admin:admin -H 'X-Requested-By:admin' -X PUT 'http://localhost:8080/api/v1/clusters/cc' -d '{
  "Clusters": {
    "desired_config": {
      "type": "core-site",
      "tag": "version1527441356254688",
      "properties": {
        "security.admin.operations.protocol.acl" : "hadoop",
        "security.client.datanode.protocol.acl" : "*",
        "security.client.protocol.acl" : "*",
        "security.datanode.protocol.acl" : "*",
        "security.inter.datanode.protocol.acl" : "*",
        "security.inter.tracker.protocol.acl" : "*",
        "security.job.client.protocol.acl" : "*",
        "security.job.task.protocol.acl" : "*",
        "security.namenode.protocol.acl" : "*",
        "security.refresh.policy.protocol.acl" : "hadoop",
        "security.refresh.usertogroups.mappings.protocol.acl" : "hadoop"
      }
    }
  }
}'

Re: how to generate tag number by API

mike_bronson7 — Mon, 28 May 2018 14:22:56 GMT

( I accept your anser but we have aproblem ) , regarding the - version"+str(int(time.time() * 1000000)) , what in case its return number that already exists as version ( in spite this is very very rare ? )

Re: how to generate tag number by API

sandyy006 — Mon, 28 May 2018 16:04:06 GMT

@Michael Bronson, It is highly unlikely that you will get the same version number when using epoch timestamp, The number changes every millisecond. So each time you execute "version"+str(int(time.time() * 1000000)) you will get a new unique number.