Behavioral changes denote a marked change in behavior from the previously released version to this version of software. In HDP 2.4.2, behavioral changes affect the following Hadoop components.
Table 1.4. Behavioral Changes
| Hortonworks Bug ID | Component | Apache JIRA | Summary | Details |
|---|---|---|---|---|
|
BUG-55056 |
YARN |
Nodemanager connection errors are retried at multiple levels. |
Scenario: During NodeManager restart, all YARN clients connect to NodeManager need to retry the connection to NodeManager. We formerly had a two layer retry for YARN Client connection with NodeManager: one was at the RPC layer, and the other was at the NodeManager proxy layer. This caused the log of retry activities to expand logarithmically. After this fix, we consolidated the RPC layer retry and NodeManager proxy retry; the retry log no longer has duplicate entries. |
