* Fixes bug in DaemonSetController causing it to stop processing some DaemonSets for 5 minutes after node removal. ([#76060](https://github.com/kubernetes/kubernetes/pull/76060), [@krzysztof-jastrzebski](https://github.com/krzysztof-jastrzebski))

        failover.handleFailure(channel, error);
    }
    
    private void performHealthCheck() {
        for (ChannelInfo channel : channels.values()) {
            if (channel.getIdleTime() > 60000) {  // 1 minute idle
                // Send keep-alive
                try {
                    sendKeepAlive(channel);
                } catch (Exception e) {

        if (effect.shutdownOutput) socket.shutdownOutput()
        if (effect.closeSocket) socket.close()
      }

      Stall -> {
        // Sleep until the socket is closed.
        socket.sleepWhileOpen(TimeUnit.MINUTES.toNanos(60))
        error("expected timeout")
      }
    }

    return true
  }

  @Throws(IOException::class)
  private fun readEmptyLine(source: BufferedSource) {

    }
  }


  @J2ktIncompatible // slow enough to cause flakiness
  @GwtIncompatible // far too slow
  public void testSqrtOfPerfectSquareAsDoubleIsPerfect() {
    // This takes just over a minute on my machine.
    for (long n = 0; n <= LongMath.FLOOR_SQRT_MAX_LONG; n++) {
      long actual = (long) Math.sqrt((double) (n * n));
      assertTrue(actual == n);
    }
  }

import static java.lang.Thread.State.WAITING;
import static java.util.concurrent.Executors.newSingleThreadExecutor;
import static java.util.concurrent.TimeUnit.MILLISECONDS;
import static java.util.concurrent.TimeUnit.MINUTES;
import static java.util.concurrent.TimeUnit.NANOSECONDS;
import static java.util.concurrent.TimeUnit.SECONDS;

import com.google.common.base.Equivalence;
import com.google.common.base.Ticker;

Downloading and installing the package dependencies **could take minutes**, but using the **cache** would **take seconds** at most.

    /** Default cron expression for general scheduling (daily at midnight). */
    public static final String DEFAULT_CRON_EXPRESSION = "0 0 * * *";

    /** Default cron expression for search log processing (every minute). */
    public static final String DEFAULT_SEARCH_LOG_CRON_EXPRESSION = "* * * * *";

    /** Default cron expression for daily tasks (daily at midnight). */

          <name>updatePolicy</name>
          <version>1.0.0+</version>
          <description>
            The frequency for downloading updates - can be "always",
            "daily" (default), "interval:XXX" (in minutes) or "never"
            (only if it doesn't exist locally).
          </description>
          <type>String</type>
        </field>
        <field>
          <name>checksumPolicy</name>

If this happens to you, you can wait at most 10 minutes for the replication controller to start a resync, the extra pods will then be deleted. Or, you can manually trigger a resync by change the replicas in the spec of the replication controller.

- Volumes are no longer detached from healthy nodes after 6 minutes timeout. 6 minute force-detach timeout is used only for unhealthy nodes (`node.status.conditions["Ready"]!= true`). ([#110721](https://github.com/kubernetes/kubernetes/pull/110721), [@jsafrane](https://github.com/jsafrane))