Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2176#discussion_r69102159
--- Diff: flink-contrib/docker-flink/docker-entrypoint.sh ---
@@ -16,21 +18,23 @@
# limitations under the License.
################################################################################
-jobmanager.rpc.address: %jobmanager%
-jobmanager.rpc.port: 6123
-jobmanager.heap.mb: 128
-
-taskmanager.rpc.port: 6121
-taskmanager.data.port: 6122
-taskmanager.heap.mb: 256
-taskmanager.numberOfTaskSlots: %nb_slots%
-
-parallelization.degree.default: %parallelism%
+# general configuration
+sed -i -e "s/taskmanager.numberOfTaskSlots:
1/taskmanager.numberOfTaskSlots: `grep -c ^processor /proc/cpuinfo`/g"
$FLINK_HOME/conf/flink-conf.yaml
--- End diff --
This should only be executed on the JobManager since it will print
`taskmanager_1 | sed: can't create temp file
'/usr/local/flink/conf/flink-conf.yamlXXXXXX': Read-only file system` which
might worry some users.
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