https://community.cloudera.com/t5/Support-Questions/Region-Servers-start-throwing-Timeout-exceptions-1-by-1-and/m-p/221416#M183290 <P>HI,<BR /><BR />Usually timeout happen because the cluster is undersized or no dedicated node for hbase or the ingestion is so quick that hbase need to do a lot of split of region.<BR />- Do you manage a lot of data with hbase? if yes, idd you pre-split your table?</P><P>- If i was you I would also have a look to the cpu, memory and io disk usage. If you dont have anydedicated nodes for hbase other hadoop component like spark, hive, etc can have an impact.<BR />As a general best practice, you should have dedicated node for hbase with enough cpu and several disk</P><P>Mest regards,<BR />Michel</P> Wed, 13 Jun 2018 21:01:42 GMT msumbul1 2018-06-13T21:01:42Z