def delete_node()

in scripts/util.py [0:0]

• 19 lines of code
• 12 McCabe index (conditional complexity)

    def delete_node(self, nodename):
        request = tpu.DeleteNodeRequest(name=f"{self._parent}/nodes/{nodename}")
        try:
            resp = self._client.delete_node(request=request).result()
            if resp:
                return self.get_node(nodename=nodename) is None
            return False
        except gExceptions.NotFound:
            # log only error if vmcount is 1 as for other tpu vm count, this could be "phantom" nodes
            if self.vmcount == 1:
                log.error(f"Tpu single node {nodename} not found")
            else:
                # for the TPU nodes that consist in more than one vm, only the first node of the TPU a.k.a. the master node will
                # exist as real TPU nodes, so the other ones are expected to not be found, check the hostname of the node that has
                # not been found, and if it ends in 0, it means that is the master node and it should have been found, and in consequence
                # log an error
                nodehostname = yaml.safe_load(
                    run(f"{lkp.scontrol} --yaml show node {nodename}").stdout.rstrip()
                )["nodes"][0]["hostname"]
                if nodehostname.split("-")[-1] == "0":
                    log.error(f"TPU master node {nodename} not found")
                else:
                    log.info(f"Deleted TPU 'phantom' node {nodename}")
            # If the node is not found it is tecnichally deleted, so return success.
            return True