Lumia001 edited a comment on issue #3294:
URL: https://github.com/apache/skywalking/issues/3294#issuecomment-690968815
It seems to be no.
And I know, it is neither SW's responsibility nor Dubbo's responsibility,
just wanna solve it...
Recently, I did upgrade dubbo's version from Dubbox-2.8.4 to
apache-dubbo-2.7.7. Both of them have the same limit.
Here is Apache Dubbo-2.7.7's source.
------------------------------------------------------------
```
@Override
public void filter(ClientRequestContext requestContext) throws
IOException {
int size = 0;
for (Map.Entry<String, Object> entry :
RpcContext.getContext().getObjectAttachments().entrySet()) {
String key = entry.getKey();
String value = (String) entry.getValue();
if (illegalHttpHeaderKey(key) || illegalHttpHeaderValue(value)) {
throw new IllegalArgumentException("The attachments of " +
RpcContext.class.getSimpleName() + " must not contain ',' or '=' when using
rest protocol");
}
// TODO for now we don't consider the differences of encoding
and server limit
if (value != null) {
size += value.getBytes(StandardCharsets.UTF_8).length;
}
if (size > MAX_HEADER_SIZE) {
throw new IllegalArgumentException("The attachments of " +
RpcContext.class.getSimpleName() + " is too big");
}
String attachments = key + "=" + value;
requestContext.getHeaders().add(DUBBO_ATTACHMENT_HEADER,
attachments);
}
}
```
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