forked from cerc-io/ipld-eth-server
46 lines
1.0 KiB
Go
46 lines
1.0 KiB
Go
// Copyright (c) 2016 Arista Networks, Inc.
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// Use of this source code is governed by the Apache License 2.0
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// that can be found in the COPYING file.
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package kafka
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import (
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"os"
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"time"
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"github.com/Shopify/sarama"
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"github.com/aristanetworks/glog"
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)
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const (
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outOfBrokersBackoff = 30 * time.Second
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outOfBrokersRetries = 5
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)
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// NewClient returns a Kafka client
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func NewClient(addresses []string) (sarama.Client, error) {
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config := sarama.NewConfig()
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hostname, err := os.Hostname()
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if err != nil {
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hostname = ""
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}
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config.ClientID = hostname
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config.Producer.Compression = sarama.CompressionSnappy
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config.Producer.Return.Successes = true
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var client sarama.Client
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retries := outOfBrokersRetries + 1
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for retries > 0 {
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client, err = sarama.NewClient(addresses, config)
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retries--
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if err == sarama.ErrOutOfBrokers {
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glog.Errorf("Can't connect to the Kafka cluster at %s (%d retries left): %s",
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addresses, retries, err)
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time.Sleep(outOfBrokersBackoff)
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} else {
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break
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}
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}
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return client, err
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}
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