Opentsdb connectionmanager:unexpected exception from downstream Java.io.IOException:Broken pipe

OPENTSDB has this error:

ConnectionManager:Unexpected exception from downstream for [ID:0xf85323a8, /10.65. the.:3874=/10.65.. 117:4242]java.io.IOException:Broken pipe at Sun. NiO. Ch. Filedispatcher. Write0 (Native Method) ~[na:1.6. 0_27] at Sun. NiO. Ch. Socketdispatcher. Write(Socketdispatcher. Java: -) ~[na:1.6. 0_27] at Sun. NiO. Ch. Ioutil. Writefromnativebuffer(Ioutil. Java:122)

This usually means that the client has been disconnected and TSDB is trying to send an answer. For example, suppose you write a remote login data point and have a data with errors (bad labels, malformed, etc.). So TSD?? B is trying to respond with an error message, but the client is missing.

In this case, because the data points will not be written anyway you will not lose any data whatsoever. Assuming you see this error from an HTTP request, the client closes the connection before the TSDB can respond.

The problem is: Hbaseclient:lost connection with the. META. Region

It seems that the upgrade was lost when the update version number of Sync.jar this jar package.
Try copying the HBase Sync.jar package of your old version number to the new directory below.

Opentsdb connectionmanager:unexpected exception from downstream Java.io.IOException:Broken pipe