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https://issues.apache.org/jira/browse/BEAM-4681?focusedWorklogId=179609&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-179609
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ASF GitHub Bot logged work on BEAM-4681:
----------------------------------------
Author: ASF GitHub Bot
Created on: 29/Dec/18 04:04
Start Date: 29/Dec/18 04:04
Worklog Time Spent: 10m
Work Description: tweise commented on pull request #7359: [BEAM-4681]
Address synchronization issue for portable timers
URL: https://github.com/apache/beam/pull/7359#discussion_r244449305
##########
File path:
runners/flink/src/main/java/org/apache/beam/runners/flink/translation/utils/NoopLock.java
##########
@@ -0,0 +1,72 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.beam.runners.flink.translation.utils;
+
+import java.io.Serializable;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.Condition;
+import java.util.concurrent.locks.Lock;
+import javax.annotation.Nonnull;
+
+/**
+ * A lock which can always be acquired. It should not be used when a proper
lock is required, but it
+ * is useful as a performance optimization when locking is not necessary but
the code paths have to
+ * be shared between the locking and the non-locking variant.
+ *
+ * <p>For example, in {@link
+ *
org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator},
the
+ * locking on the state backend is only required when both timers and state
are used.
+ */
+public class NoopLock implements Lock, Serializable {
Review comment:
Since this may be useful outside of the Flink runner, maybe move it to a
common package like `org.apache.beam.sdk.util`?
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Issue Time Tracking
-------------------
Worklog Id: (was: 179609)
Time Spent: 25h 50m (was: 25h 40m)
> Integrate support for timers using the portability APIs into Flink
> ------------------------------------------------------------------
>
> Key: BEAM-4681
> URL: https://issues.apache.org/jira/browse/BEAM-4681
> Project: Beam
> Issue Type: Sub-task
> Components: runner-flink
> Reporter: Luke Cwik
> Assignee: Maximilian Michels
> Priority: Major
> Labels: portability, portability-flink
> Fix For: 2.9.0
>
> Time Spent: 25h 50m
> Remaining Estimate: 0h
>
> Consider using the code produced in BEAM-4658 to support timers.
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