<https://stackoverflow.com/posts/64252040/timeline>

Installing (download & tar zxf) Apache Flink 1.11.1 and running: ./bin/flink
run examples/streaming/WordCount.jar it show on the nice message after more
less 5 min. the trying of submitting:  Caused by:
org.apache.flink.runtime.jobmanager.scheduler.NoResourceAvailableException:
Could not allocate the required slot within slot request timeout. Please
make sure that the cluster has enough resources. at
org.apache.flink.runtime.scheduler.DefaultScheduler.maybeWrapWithNoResourceAvailableException(DefaultScheduler.java:441)
... 45 more Caused by: java.util.concurrent.CompletionException:
java.util.concurrent.TimeoutException at
java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
at
java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
at
java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:607)
at
java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:591)

It's Flink default configuration.

Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little
Endian CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 1 Core(s) per
socket: 1
free -g total used free shared buff/cache available

Mem: 62 1 23 3 37 57 Swap: 7 0 7

are there some advices about what is happened?

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