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https://issues.apache.org/jira/browse/FLINK-8975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16411081#comment-16411081
]
ASF GitHub Bot commented on FLINK-8975:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/5733#discussion_r176678628
--- Diff: flink-end-to-end-tests/test-scripts/test_resume_savepoint.sh ---
@@ -0,0 +1,155 @@
+#!/usr/bin/env bash
+################################################################################
+# 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.
+################################################################################
+
+source "$(dirname "$0")"/common.sh
+
+# modify configuration to have 2 slots
+cp $FLINK_DIR/conf/flink-conf.yaml $FLINK_DIR/conf/flink-conf.yaml.bak
+sed -i -e 's/taskmanager.numberOfTaskSlots:
1/taskmanager.numberOfTaskSlots: 2/' $FLINK_DIR/conf/flink-conf.yaml
+
+# modify configuration to use SLF4J reporter; we will be using this to
monitor the state machine progress
+cp $FLINK_DIR/opt/flink-metrics-slf4j-1.6-SNAPSHOT.jar $FLINK_DIR/lib/
+echo "metrics.reporter.slf4j.class:
org.apache.flink.metrics.slf4j.Slf4jReporter" >> $FLINK_DIR/conf/flink-conf.yaml
+echo "metrics.reporter.slf4j.interval: 5 SECONDS" >>
$FLINK_DIR/conf/flink-conf.yaml
+
+start_cluster
+
+# get Kafka 0.10.0
+mkdir -p $TEST_DATA_DIR
+if [ -z "$3" ]; then
+ # need to download Kafka because no Kafka was specified on the invocation
+
KAFKA_URL="https://archive.apache.org/dist/kafka/0.10.2.0/kafka_2.11-0.10.2.0.tgz";
+ echo "Downloading Kafka from $KAFKA_URL"
+ curl "$KAFKA_URL" > $TEST_DATA_DIR/kafka.tgz
+else
+ echo "Using specified Kafka from $3"
+ cp $3 $TEST_DATA_DIR/kafka.tgz
+fi
+
+tar xzf $TEST_DATA_DIR/kafka.tgz -C $TEST_DATA_DIR/
+KAFKA_DIR=$TEST_DATA_DIR/kafka_2.11-0.10.2.0
+
+# fix kafka config
+sed -i -e "s+^\(dataDir\s*=\s*\).*$+\1$TEST_DATA_DIR/zookeeper+"
$KAFKA_DIR/config/zookeeper.properties
+sed -i -e "s+^\(log\.dirs\s*=\s*\).*$+\1$TEST_DATA_DIR/kafka+"
$KAFKA_DIR/config/server.properties
+$KAFKA_DIR/bin/zookeeper-server-start.sh -daemon
$KAFKA_DIR/config/zookeeper.properties
+$KAFKA_DIR/bin/kafka-server-start.sh -daemon
$KAFKA_DIR/config/server.properties
+
+# make sure to stop Kafka and ZooKeeper at the end, as well as cleaning up
the Flink cluster and our moodifications
+function test_cleanup {
+ $KAFKA_DIR/bin/kafka-server-stop.sh
+ $KAFKA_DIR/bin/zookeeper-server-stop.sh
+
+ # revert our modifications to the Flink distribution
+ rm $FLINK_DIR/conf/flink-conf.yaml
+ mv $FLINK_DIR/conf/flink-conf.yaml.bak $FLINK_DIR/conf/flink-conf.yaml
+ rm $FLINK_DIR/lib/flink-metrics-slf4j-1.6-SNAPSHOT.jar
+
+ # make sure to run regular cleanup as well
+ cleanup
+}
+trap test_cleanup INT
+trap test_cleanup EXIT
+
+# zookeeper outputs the "Node does not exist" bit to stderr
+while [[ $($KAFKA_DIR/bin/zookeeper-shell.sh localhost:2181 get
/brokers/ids/0 2>&1) =~ .*Node\ does\ not\ exist.* ]]; do
+ echo "Waiting for broker..."
+ sleep 1
+done
+
+# create the required topic
+$KAFKA_DIR/bin/kafka-topics.sh --create --zookeeper localhost:2181
--replication-factor 1 --partitions 1 --topic test-input
+
+# run the state machine example job
+STATE_MACHINE_JOB=$($FLINK_DIR/bin/flink run -d
$FLINK_DIR/examples/streaming/StateMachineExample.jar \
+ --kafka-topic test-input \
+ | grep "Job has been submitted with JobID" | sed 's/.* //g')
+
+wait_job_running $STATE_MACHINE_JOB
+
+# then, run the events generator
+EVENTS_GEN_JOB=$($FLINK_DIR/bin/flink run -d -c
org.apache.flink.streaming.examples.statemachine.KafkaEventsGeneratorJob
$FLINK_DIR/examples/streaming/StateMachineExample.jar \
+ --kafka-topic test-input --sleep 30 \
+ | grep "Job has been submitted with JobID" | sed 's/.* //g')
+
+wait_job_running $EVENTS_GEN_JOB
+
+function get_metric_state_machine_processed_records {
+ grep ".State machine job.Flat Map -> Sink: Print to Std.
Out.0.numRecordsIn:" $FLINK_DIR/log/*taskexecutor*.log | sed 's/.* //g' | tail
-1
+}
+
+function get_num_metric_samples {
+ grep ".State machine job.Flat Map -> Sink: Print to Std.
Out.0.numRecordsIn:" $FLINK_DIR/log/*taskexecutor*.log | wc -l
+}
+
+# monitor the numRecordsIn metric of the state machine operator;
+# only proceed to savepoint when the operator has processed 200 records
+while : ; do
+ NUM_RECORDS=$(get_metric_state_machine_processed_records)
+
+ if [ -z $NUM_RECORDS ]; then
+ NUM_RECORDS=0
+ fi
+
+ if (( $NUM_RECORDS < 200 )); then
+ echo "Waiting for state machine job to process up to 200 records,
current progress: $NUM_RECORDS records ..."
+ sleep 5
+ else
+ break
+ fi
+done
+
+# take a savepoint of the state machine job
+SAVEPOINT_PATH=$(take_savepoint $STATE_MACHINE_JOB $TEST_DATA_DIR \
+ | grep "Savepoint completed. Path:" | sed 's/.* //g')
+
+cancel_job $STATE_MACHINE_JOB
+
+# Since it is not possible to differentiate reporter output between the
first and second exuection,
--- End diff --
typo: execution
> End-to-end test: Resume from savepoint
> --------------------------------------
>
> Key: FLINK-8975
> URL: https://issues.apache.org/jira/browse/FLINK-8975
> Project: Flink
> Issue Type: Sub-task
> Components: Tests
> Affects Versions: 1.5.0
> Reporter: Till Rohrmann
> Assignee: Tzu-Li (Gordon) Tai
> Priority: Blocker
> Fix For: 1.5.0
>
>
> User usually take a savepoint and want to resume from it. In order to verify
> that Flink supports this feature, we should add an end-to-end test which
> scripts this behavior. We should use the general purpose testing job
> FLINK-8971 with failures disabled for that.
> The end-to-end test should do the following:
> * Submit FLINK-8971 job
> * Verify that the savepoint is there
> * Cancel job and resume from savepoint
> * Verify that job could be resumed
> * Use different StateBackends: RocksDB incremental async/sync, RocksDB full
> async/sync, FsStateBackend aysnc/sync
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