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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Author: arnej
// utilities to get and manipulate node states in a storage cluster
package clusterstate
import (
"strconv"
"strings"
"github.com/vespa-engine/vespa/client/go/internal/admin/trace"
"github.com/vespa-engine/vespa/client/go/internal/util"
"github.com/vespa-engine/vespa/client/go/internal/vespa"
)
func getConfigServerHosts(s string) []string {
if s != "" {
return []string{s}
}
backticks := util.BackTicksForwardStderr
got, err := backticks.Run(vespa.FindHome()+"/bin/vespa-print-default", "configservers")
res := strings.Fields(got)
if err != nil || len(res) < 1 {
util.JustExitMsg("bad configservers: " + got)
}
trace.Debug("found", len(res), "configservers:", res)
return res
}
func getConfigServerPort(i int) int {
if i > 0 {
return i
}
backticks := util.BackTicksForwardStderr
got, err := backticks.Run(vespa.FindHome()+"/bin/vespa-print-default", "configserver_rpc_port")
if err == nil {
i, err = strconv.Atoi(strings.TrimSpace(got))
}
if err != nil || i < 1 {
util.JustExitMsg("bad configserver_rpc_port: " + got)
}
trace.Debug("found configservers rpc port:", i)
return i
}
func detectModel(opts *Options) *VespaModelConfig {
vespa.LoadDefaultEnv()
cfgHosts := getConfigServerHosts(opts.ConfigServerHost)
cfgPort := getConfigServerPort(opts.ConfigServerPort)
for _, cfgHost := range cfgHosts {
args := []string{
"-j",
"-n", "cloud.config.model",
"-i", "admin/model",
"-p", strconv.Itoa(cfgPort),
"-s", cfgHost,
}
backticks := util.BackTicksForwardStderr
data, err := backticks.Run(vespa.FindHome()+"/bin/vespa-get-config", args...)
parsed := parseModelConfig(data)
if err == nil && parsed != nil {
return parsed
}
}
util.JustExitMsg("could not get model config")
panic("unreachable")
}
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