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Posted to dev@storm.apache.org by "Kirill Prasalov (JIRA)" <ji...@apache.org> on 2016/03/05 03:41:40 UTC
[jira] [Updated] (STORM-963) Frozen topology (KafkaSpout +
Multilang bolt)
[ https://issues.apache.org/jira/browse/STORM-963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kirill Prasalov updated STORM-963:
----------------------------------
Attachment: jstack-bopcat.txt
> Frozen topology (KafkaSpout + Multilang bolt)
> ---------------------------------------------
>
> Key: STORM-963
> URL: https://issues.apache.org/jira/browse/STORM-963
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-kafka, storm-multilang
> Affects Versions: 0.9.4, 0.9.5, 0.9.6
> Environment: - VMware ESX 5.5
> - Ubuntu Server 14.04 LTS (kernel 3.16.0-41-generic)
> - Java (TM) SE Runtime Environment (build 1.8.0_45-b14)
> - Python 2.7.6 (default, Jun 22 2015, 17:58:13)
> - Zookeeper 3.4.6
> Reporter: Alex Sobrino
> Labels: multilang
> Attachments: dump, jstack-bopcat.txt, jstack.txt
>
>
> Hi,
> We've got a pretty simple topology running with Storm 0.9.5 (tried also with 0.9.4 and 0.9.6-INCUBATING) in a 3 machine cluster:
> {code}kafkaSpout (3) -----> processBolt (12){code}
> Some info:
> - kafkaSpout reads from a topic with 3 partitions and 2 replications
> - processBolt iterates throught the message and saves the results in MongoDB
> - processBolt is implemented in Python and has a storm.log("I'm doing something") just to add a simple debug message in the logs
> - The messages can be quite big (~25-40 MB) and are in JSON format
> - The kafka topic has a retention of 2 hours
> - We use the same ZooKeeper cluster to both Kafka and Storm
> The topology gets frozen after several hours (not days) running. We don't see any message in the logs... In fact, the periodic message from s.k.KafkaUtils and s.k.ZkCoordinator disapears. As you can imagine, the message from the Bolt also dissapears. Logs are copy/pasted further on. If we redeploy the topology everything starts to work again until it becomes frozen again.
> Our kafkaSpout config is:
> {code}
> ZkHosts zkHosts = new ZkHosts("zkhost01:2181,zkhost02:2181,zkhost03:2181");
> SpoutConfig kafkaConfig = new SpoutConfig(zkHosts, "topic", "/topic/ourclientid", "ourclientid");
> kafkaConfig.scheme = new SchemeAsMultiScheme(new StringScheme());
> kafkaConfig.fetchSizeBytes = 50*1024*1024;
> kafkaConfig.bufferSizeBytes = 50*1024*1024;
> {code}
> We've also tried setting the following options
> {code}
> kafkaConfig.forceFromStart = true;
> kafkaConfig.startOffsetTime = kafka.api.OffsetRequest.EarliestTime(); // Also with kafka.api.OffsetRequest.LatestTime();
> kafkaConfig.useStartOffsetTimeIfOffsetOutOfRange = true;
> {code}
> Right now the topology is running without acking the messages since there's a bug in kafkaSpout with failed messages and deleted offsets in Kafka.
> This is what can be seen in the logs in one of the workers:
> {code}
> 2015-07-23T12:37:38.008+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:37:39.079+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:37:51.013+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:37:51.091+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:38:02.684+0200 s.k.ZkCoordinator [INFO] Task [2/3] Refreshing partition manager connections
> 2015-07-23T12:38:02.687+0200 s.k.DynamicBrokersReader [INFO] Read partition info from zookeeper: GlobalPartitionInformation{partitionMap={0=kafka1:9092, 1=kafka2:9092, 2=kafka3:9092}}
> 2015-07-23T12:38:02.687+0200 s.k.KafkaUtils [INFO] Task [2/3] assigned [Partition{host=kafka2, partition=1}]
> 2015-07-23T12:38:02.687+0200 s.k.ZkCoordinator [INFO] Task [2/3] Deleted partition managers: []
> 2015-07-23T12:38:02.687+0200 s.k.ZkCoordinator [INFO] Task [2/3] New partition managers: []
> 2015-07-23T12:38:02.687+0200 s.k.ZkCoordinator [INFO] Task [2/3] Finished refreshing
> 2015-07-23T12:38:09.012+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:38:41.878+0200 b.s.t.ShellBolt [INFO] ShellLog pid:28364, name:processBolt I'm doing something
> 2015-07-23T12:39:02.688+0200 s.k.ZkCoordinator [INFO] Task [2/3] Refreshing partition manager connections
> 2015-07-23T12:39:02.691+0200 s.k.DynamicBrokersReader [INFO] Read partition info from zookeeper: GlobalPartitionInformation{partitionMap={0=kafka1:9092, 1=kafka2:9092, 2=kafka3:9092}}
> 2015-07-23T12:39:02.691+0200 s.k.KafkaUtils [INFO] Task [2/3] assigned [Partition{host=kafka2:9092, partition=1}]
> 2015-07-23T12:39:02.691+0200 s.k.ZkCoordinator [INFO] Task [2/3] Deleted partition managers: []
> 2015-07-23T12:39:02.691+0200 s.k.ZkCoordinator [INFO] Task [2/3] New partition managers: []
> 2015-07-23T12:39:02.691+0200 s.k.ZkCoordinator [INFO] Task [2/3] Finished refreshing
> 2015-07-23T12:40:02.692+0200 s.k.ZkCoordinator [INFO] Task [2/3] Refreshing partition manager connections
> 2015-07-23T12:40:02.695+0200 s.k.DynamicBrokersReader [INFO] Read partition info from zookeeper: GlobalPartitionInformation{partitionMap={0=kafka1:9092, 1=kafka2:9092, 2=kafka3:9092}}
> 2015-07-23T12:40:02.695+0200 s.k.KafkaUtils [INFO] Task [2/3] assigned [Partition{host=kafka2:9092, partition=1}]
> 2015-07-23T12:40:02.695+0200 s.k.ZkCoordinator [INFO] Task [2/3] Deleted partition managers: []
> 2015-07-23T12:40:02.695+0200 s.k.ZkCoordinator [INFO] Task [2/3] New partition managers: []
> 2015-07-23T12:40:02.695+0200 s.k.ZkCoordinator [INFO] Task [2/3] Finished refreshing
> 2015-07-23T12:41:02.696+0200 s.k.ZkCoordinator [INFO] Task [2/3] Refreshing partition manager connections
> 2015-07-23T12:41:02.699+0200 s.k.DynamicBrokersReader [INFO] Read partition info from zookeeper: GlobalPartitionInformation{partitionMap={0=kafka1:9092, 1=kafka2:9092, 2=kafka3:9092}}
> 2015-07-23T12:41:02.699+0200 s.k.KafkaUtils [INFO] Task [2/3] assigned [Partition{host=kafka2:9092, partition=1}]
> 2015-07-23T12:41:02.699+0200 s.k.ZkCoordinator [INFO] Task [2/3] Deleted partition managers: []
> 2015-07-23T12:41:02.699+0200 s.k.ZkCoordinator [INFO] Task [2/3] New partition managers: []
> 2015-07-23T12:41:02.699+0200 s.k.ZkCoordinator [INFO] Task [2/3] Finished refreshing
> 2015-07-23T12:42:02.735+0200 s.k.ZkCoordinator [INFO] Task [2/3] Refreshing partition manager connections
> 2015-07-23T12:42:02.737+0200 s.k.DynamicBrokersReader [INFO] Read partition info from zookeeper: GlobalPartitionInformation{partitionMap={0=kafka1:9092, 1=kafka2:9092, 2=kafka3:9092}}
> 2015-07-23T12:42:02.737+0200 s.k.KafkaUtils [INFO] Task [2/3] assigned [Partition{host=kafka2:9092, partition=1}]
> 2015-07-23T12:42:02.737+0200 s.k.ZkCoordinator [INFO] Task [2/3] Deleted partition managers: []
> 2015-07-23T12:42:02.737+0200 s.k.ZkCoordinator [INFO] Task [2/3] New partition managers: []
> 2015-07-23T12:42:02.737+0200 s.k.ZkCoordinator [INFO] Task [2/3] Finished refreshing
> {code}
> and then it becomes frozen. Nothing is written into the nimbus log. We've checked the offsets in ZooKeeper and they're not updated:
> {code}
> {"topology":{"id":"218e58a5-6bfb-4b32-ae89-f3afa19306e1","name":"our-topology"},"offset":12047144,"partition":1,"broker":{"host":"kafka2","port":9092},"topic":"topic"}
> cZxid = 0x100028958
> ctime = Wed Jul 01 12:22:36 CEST 2015
> mZxid = 0x100518527
> mtime = Thu Jul 23 12:42:41 CEST 2015
> pZxid = 0x100028958
> cversion = 0
> dataVersion = 446913
> aclVersion = 0
> ephemeralOwner = 0x0
> dataLength = 183
> numChildren = 0
> {code}
> Any ideas of what we could be missing?
> PS: This was sent to the Storm user's mailing list and got 0 replies :\
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