Hi Alex, Can you share how have you solved/worked around the problem? I hit something similar and I would appreciate any suggestions on how to deal with it. Thank you beforehand.
---------- Andrey Yegorov On Thu, Jul 23, 2015 at 4:43 AM, Alex Sobrino <[email protected]> wrote: > 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: > > kafkaSpout (3) -----> processBolt (12) > > 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: > > 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; > > We've also tried setting the following options > > kafkaConfig.forceFromStart = true; > kafkaConfig.startOffsetTime = kafka.api.OffsetRequest.EarliestTime(); // > Also with kafka.api.OffsetRequest.LatestTime(); > kafkaConfig.useStartOffsetTimeIfOffsetOutOfRange = true; > > 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: > > 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 > > > and then it becomes frozen. Nothing is written into the nimbus log. We've > checked the offsets in ZooKeeper and they're not updated: > > > {"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 > > > > Any ideas of what we could be missing? Should we open a Jira Issue? > > Thanks! > > -- > Alex Sobrino Beltrán > Registered Linux User #273657 > > http://v5tech.es >
