in spectator-ext-ipc/src/main/java/com/netflix/spectator/ipc/IpcLogEntry.java [563:579]
public IpcLogEntry addRequestHeader(String name, String value) {
if (clientAsg == null && name.equalsIgnoreCase(NetflixHeader.ASG.headerName())) {
withClientAsg(value);
} else if (clientZone == null && name.equalsIgnoreCase(NetflixHeader.Zone.headerName())) {
withClientZone(value);
} else if (clientNode == null && name.equalsIgnoreCase(NetflixHeader.Node.headerName())) {
withClientNode(value);
} else if (vip == null && name.equalsIgnoreCase(NetflixHeader.Vip.headerName())) {
withVip(value);
} else if (requestContentLength < 0L && CONTENT_LENGTH.equalsIgnoreCase(name)) {
withRequestContentLength(parseContentLength(value));
} else if (isMeshRequest(name, value)) {
disableMetrics();
}
this.requestHeaders.add(new Header(name, value));
return this;
}