func (c ChangeIndexOptions) ValidateOrPanic() {
if c.NumShards == 0 {
base.LogPanic("The number of shards must be greater than 0")
}
// make sure num_shards is a power of two, or panic
isPowerOfTwo := base.IsPowerOfTwo(c.NumShards)
if !isPowerOfTwo {
errMsg := "Invalid value for num_shards in feed_params: %v Must be a power of 2 so that all shards have the same number of vbuckets"
base.LogPanic(errMsg, c.NumShards)
}
}
func ValidateConfigOrPanic(runMode SyncGatewayRunMode) {
// if the user passes -skipRunModeValidation on the command line, then skip validation
if config.SkipRunmodeValidation == true {
base.Logf("Skipping runmode (accel vs normal) config validation")
return
}
switch runMode {
case SyncGatewayRunModeNormal:
// if index writer == true for any databases, panic
if config.HasAnyIndexWriterConfiguredDatabases() {
base.LogPanic("SG is running in normal mode but there are databases configured as index writers")
}
case SyncGatewayRunModeAccel:
// if index writer != true for any databases, panic
if config.HasAnyIndexReaderConfiguredDatabases() {
base.LogPanic("SG is running in sg-accelerator mode but there are databases configured as index readers")
}
}
}