diff options
Diffstat (limited to 'docs/configuration.md')
| -rw-r--r-- | docs/configuration.md | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/configuration.md b/docs/configuration.md index dd2cde8194..0dbfe3b079 100644 --- a/docs/configuration.md +++ b/docs/configuration.md @@ -392,6 +392,16 @@ Apart from these, the following properties are also available, and may be useful </td> </tr> <tr> + <td><code>spark.reducer.maxReqsInFlight</code></td> + <td>Int.MaxValue</td> + <td> + This configuration limits the number of remote requests to fetch blocks at any given point. + When the number of hosts in the cluster increase, it might lead to very large number + of in-bound connections to one or more nodes, causing the workers to fail under load. + By allowing it to limit the number of fetch requests, this scenario can be mitigated. + </td> +</tr> +<tr> <td><code>spark.shuffle.compress</code></td> <td>true</td> <td> |