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From Ahmed Vila <av...@devlogic.eu>
Subject Re: Flume filechannel fails to initialilze
Date Fri, 13 Nov 2015 15:55:34 GMT
cannot agree more, but you have to push it :)

On Fri, Nov 13, 2015 at 4:53 PM, Jeff Alfeld <jalfeld@gmail.com> wrote:

> I agree that in an ideal situation that upgrading the infrastructure or
> adding nodes would be the way to go, in the real world we sometimes have to
> work within a set of limitations that are outside our control.
>
> Jeff
>
> On Fri, Nov 13, 2015 at 4:33 AM Ahmed Vila <avila@devlogic.eu> wrote:
>
>> Hi Hari,
>>
>> I think it's actually more than enough. Given the purpose and
>> architecture of Flume-ng it feels wrong allowing it to become all around
>> queue.
>> Needing more on a single node, the more your system becomes vulnerable to
>> a full-stop situation. That's an obvious sign that your infrastructure
>> architecture is flawing to begin with.
>>
>> Instead, invest in infrastructure, add redundant flume and do round-robin
>> load balancing.
>>
>>
>> On Thu, Nov 12, 2015 at 8:19 PM, Hari Shreedharan <
>> hshreedharan@cloudera.com> wrote:
>>
>>> So there are a couple of issues related to int overflows - basically the
>>> checkpoint file is mmap-ed, so indexing is on integer, and since read 16
>>> bytes per event — the total number of events can be about 2 billion / 16 or
>>> so (give or take) — so your channel capacity needs to be below that. I have
>>> not looked at the exact numbers, but this is an approximate range. If this
>>> is something that concerns you, please file a jira. I wanted to get to this
>>> at some point, but didn’t see the urgency.
>>>
>>> Thanks,
>>> Hari Shreedharan
>>>
>>>
>>>
>>>
>>> On Nov 12, 2015, at 8:39 AM, Jeff Alfeld <jalfeld@gmail.com> wrote:
>>>
>>> Now that the channels are working again it raises the question of why
>>> did this occur? If there is a theoretical limit to a filechannel size
>>> outside of disk space limitations, what is that limit?
>>>
>>> Jeff
>>>
>>> On Thu, Nov 12, 2015 at 10:23 AM Jeff Alfeld <jalfeld@gmail.com> wrote:
>>>
>>>> Thanks for the assist, it seems that clearing the directories once more
>>>> and lowering the capacity of the channel has allowed the service to start
>>>> successfully on this server.
>>>>
>>>> Jeff
>>>>
>>>> On Thu, Nov 12, 2015 at 10:03 AM Ahmed Vila <avila@devlogic.eu> wrote:
>>>>
>>>>> 10M channel capacity seems to be exaggerated to me. Try to lower it
>>>>> down.
>>>>> Please check if you have at least 512MB of free space on the device
>>>>> where you're storing channel data and checkpoint.
>>>>>
>>>>> To me, this seems that it tries to reply the channel log, but it
>>>>> encounters an EOF. Please make sure that there is no hidden files in
there.
>>>>> Maybe removing settings for data and checkpoint dirs would be the best
>>>>> bet to try first, so it creates ~/.flume/file-channel/checkpoint and
>>>>> ~/.flume/file-channel/data
>>>>>
>>>>> At the end, you might want to try playing with setting use-fast-reply
>>>>> or even use-log-reply-v1 to true.
>>>>>
>>>>>
>>>>> On Tue, Nov 10, 2015 at 5:38 PM, Jeff Alfeld <jalfeld@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> I am having an issue on a server that I am standing up to forward
log
>>>>>> data from a spooling directory to our hadoop cluster. I am receiving
the
>>>>>> following errors when flume is starting up:
>>>>>>
>>>>>> 10 Nov 2015 16:13:25,751 INFO  [conf-file-poller-0]
>>>>>> (org.apache.flume.node.Application.startAllComponents:145)  - Starting
>>>>>> Channel bluecoat-channel
>>>>>> 10 Nov 2015 16:13:25,751 INFO  [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.FileChannel.start:269)  - Starting
>>>>>> FileChannel bluecoat-channel { dataDirs:
>>>>>> [/Dropbox/flume_tmp/bluecoat-channel/data] }...
>>>>>> 10 Nov 2015 16:13:25,751 INFO  [conf-file-poller-0]
>>>>>> (org.apache.flume.node.Application.startAllComponents:145)  - Starting
>>>>>> Channel fs-channel
>>>>>> 10 Nov 2015 16:13:25,751 INFO  [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.FileChannel.start:269)  - Starting
>>>>>> FileChannel fs-channel { dataDirs: [/Dropbox/flume_tmp/fs-channel/data]
}...
>>>>>> 10 Nov 2015 16:13:25,778 INFO  [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.Log.<init>:336)  - Encryption
is not enabled
>>>>>> 10 Nov 2015 16:13:25,778 INFO  [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.Log.<init>:336)  - Encryption
is not enabled
>>>>>> 10 Nov 2015 16:13:25,779 INFO  [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.Log.replay:382)  - Replay started
>>>>>> 10 Nov 2015 16:13:25,779 INFO  [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.Log.replay:382)  - Replay started
>>>>>> 10 Nov 2015 16:13:25,780 INFO  [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.Log.replay:394)  - Found NextFileID
0, from
>>>>>> []
>>>>>> 10 Nov 2015 16:13:25,780 INFO  [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.Log.replay:394)  - Found NextFileID
0, from
>>>>>> []
>>>>>> 10 Nov 2015 16:13:25,784 ERROR [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.Log.replay:492)  - Failed to initialize
Log
>>>>>> on [channel=bluecoat-channel]
>>>>>> java.io.EOFException
>>>>>> at java.io.RandomAccessFile.readInt(RandomAccessFile.java:827)
>>>>>> at java.io.RandomAccessFile.readLong(RandomAccessFile.java:860)
>>>>>> at
>>>>>> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:80)
>>>>>> at org.apache.flume.channel.file.Log.replay(Log.java:426)
>>>>>> at
>>>>>> org.apache.flume.channel.file.FileChannel.start(FileChannel.java:290)
>>>>>> at
>>>>>> org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
>>>>>> at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>>>>> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>>>> at java.lang.Thread.run(Thread.java:745)
>>>>>> 10 Nov 2015 16:13:25,786 ERROR [lifecycleSupervisor-1-0]
>>>>>> (org.apache.flume.channel.file.FileChannel.start:301)  - Failed to
start
>>>>>> the file channel [channel=bluecoat-channel]
>>>>>> java.io.EOFException
>>>>>> at java.io.RandomAccessFile.readInt(RandomAccessFile.java:827)
>>>>>> at java.io.RandomAccessFile.readLong(RandomAccessFile.java:860)
>>>>>> at
>>>>>> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:80)
>>>>>> at org.apache.flume.channel.file.Log.replay(Log.java:426)
>>>>>> at
>>>>>> org.apache.flume.channel.file.FileChannel.start(FileChannel.java:290)
>>>>>> at
>>>>>> org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
>>>>>> at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>>>>> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>>>> at java.lang.Thread.run(Thread.java:745)
>>>>>> 10 Nov 2015 16:13:25,784 ERROR [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.Log.replay:492)  - Failed to initialize
Log
>>>>>> on [channel=fs-channel]
>>>>>> java.io.EOFException
>>>>>> at java.io.RandomAccessFile.readInt(RandomAccessFile.java:827)
>>>>>> at java.io.RandomAccessFile.readLong(RandomAccessFile.java:860)
>>>>>> at
>>>>>> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:80)
>>>>>> at org.apache.flume.channel.file.Log.replay(Log.java:426)
>>>>>> at
>>>>>> org.apache.flume.channel.file.FileChannel.start(FileChannel.java:290)
>>>>>> at
>>>>>> org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
>>>>>> at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>>>>> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>>>> at java.lang.Thread.run(Thread.java:745)
>>>>>> 10 Nov 2015 16:13:25,787 ERROR [lifecycleSupervisor-1-2]
>>>>>> (org.apache.flume.channel.file.FileChannel.start:301)  - Failed to
start
>>>>>> the file channel [channel=fs-channel]
>>>>>> java.io.EOFException
>>>>>> at java.io.RandomAccessFile.readInt(RandomAccessFile.java:827)
>>>>>> at java.io.RandomAccessFile.readLong(RandomAccessFile.java:860)
>>>>>> at
>>>>>> org.apache.flume.channel.file.EventQueueBackingStoreFactory.get(EventQueueBackingStoreFactory.java:80)
>>>>>> at org.apache.flume.channel.file.Log.replay(Log.java:426)
>>>>>> at
>>>>>> org.apache.flume.channel.file.FileChannel.start(FileChannel.java:290)
>>>>>> at
>>>>>> org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
>>>>>> at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
>>>>>> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
>>>>>> at
>>>>>> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>>>>> at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>>>>> at java.lang.Thread.run(Thread.java:745)
>>>>>>
>>>>>> Any suggestions on why this is occurring? I have tried stopping the
>>>>>> service and clearing the  contents of the  data and checkpoint directories
>>>>>> with no change. I have  verified that the flume daemon user account
has
>>>>>> full permissions to the checkpoint and data directories also.
>>>>>>
>>>>>> Below is the config that I am currently trying to use:
>>>>>>
>>>>>>
>>>>>> #global
>>>>>> agent.sources = bluecoat-src fs-src
>>>>>> agent.channels = bluecoat-channel fs-channel
>>>>>> agent.sinks = bc-avro fs-avro
>>>>>>
>>>>>>
>>>>>> #kc bluecoat logs
>>>>>> agent.sources.bluecoat-src.type = spooldir
>>>>>> agent.sources.bluecoat-src.channels = bluecoat-channel
>>>>>> agent.sources.bluecoat-src.spoolDir = /Dropbox/flume
>>>>>> agent.sources.bluecoat-src.basenameHeader = true
>>>>>> agent.sources.bluecoat-src.basenameHeaderKey = basename
>>>>>> agent.sources.bluecoat-src.deserializer = line
>>>>>> agent.sources.bluecoat-src.deserializer.maxLineLength = 32000
>>>>>> agent.sources.bluecoat-src.deletePolicy = immediate
>>>>>> agent.sources.bluecoat-src.decodeErrorPolicy = IGNORE
>>>>>> agent.sources.bluecoat-src.maxBackoff = 10000
>>>>>>
>>>>>> agent.channels.bluecoat-channel.type = file
>>>>>> agent.channels.bluecoat-channel.capacity = 100000000
>>>>>> agent.channels.bluecoat-channel.checkpointDir =
>>>>>> /Dropbox/flume_tmp/bluecoat-channel/checkpoint
>>>>>> agent.channels.bluecoat-channel.dataDirs =
>>>>>> /Dropbox/flume_tmp/bluecoat-channel/data
>>>>>>
>>>>>> agent.sinks.bc-avro.type = avro
>>>>>> agent.sinks.bc-avro.channel = bluecoat-channel
>>>>>> agent.sinks.bc-avro.hostname = {destination server address}
>>>>>> agent.sinks.bc-avro.port = 4141
>>>>>> agent.sinks.bc-avro.batch-size = 250
>>>>>> agent.sinks.bc-avro.compression-type = deflate
>>>>>> agent.sinks.bc-avro.compression-level = 9
>>>>>>
>>>>>>
>>>>>> #kc fs logs
>>>>>> agent.sources.fs-src.type = spooldir
>>>>>> agent.sources.fs-src.channels = fs-channel
>>>>>> agent.sources.fs-src.spoolDir = /Dropbox/fs
>>>>>> agent.sources.fs-src.deserializer = line
>>>>>> agent.sources.fs-src.deserializer.maxLineLength = 32000
>>>>>> agent.sources.fs-src.deletePolicy = immediate
>>>>>> agent.sources.fs-src.decodeErrorPolicy = IGNORE
>>>>>> agent.sources.fs-src.maxBackoff = 10000
>>>>>>
>>>>>> agent.channels.fs-channel.type = file
>>>>>> agent.channels.fs-channel.capacity = 100000000
>>>>>> agent.channels.fs-channel.checkpointDir =
>>>>>> /Dropbox/flume_tmp/fs-channel/checkpoint
>>>>>> agent.channels.fs-channel.dataDirs =
>>>>>> /Dropbox/flume_tmp/fs-channel/data
>>>>>>
>>>>>> agent.sinks.fs-avro.type = avro
>>>>>> agent.sinks.fs-avro.channel = fs-channel
>>>>>> agent.sinks.fs-avro.hostname = {destination server address}
>>>>>> agent.sinks.fs-avro.port = 4145
>>>>>> agent.sinks.fs-avro.batch-size = 250
>>>>>> agent.sinks.fs-avro.compression-type = deflate
>>>>>> agent.sinks.fs-avro.compression-level = 9
>>>>>>
>>>>>>
>>>>>> Thanks!
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Best regards,
>>>>> Ahmed Vila | Senior software developer
>>>>> DevLogic | Sarajevo | Bosnia and Herzegovina
>>>>>
>>>>> Office : +387 33 942 123
>>>>> Mobile: +387 62 139 348
>>>>>
>>>>> Website: www.devlogic.eu
>>>>> E-mail   : avila@devlogic.eu
>>>>> ---------------------------------------------------------------------
>>>>> This e-mail and any attachment is for authorised use by the intended
>>>>> recipient(s) only. This email contains confidential information. It should
>>>>> not be copied, disclosed to, retained or used by, any party other than
the
>>>>> intended recipient. Any unauthorised distribution, dissemination or copying
>>>>> of this E-mail or its attachments, and/or any use of any information
>>>>> contained in them, is strictly prohibited and may be illegal. If you
are
>>>>> not an intended recipient then please promptly delete this e-mail and
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>>>>> attachment and all copies and inform the sender directly via email. Any
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>>>>> communication complies with the law and company policies.
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> This e-mail and any attachment is for authorised use by the intended
>>>>> recipient(s) only. This email contains confidential information. It should
>>>>> not be copied, disclosed to, retained or used by, any party other than
the
>>>>> intended recipient. Any unauthorised distribution, dissemination or copying
>>>>> of this E-mail or its attachments, and/or any use of any information
>>>>> contained in them, is strictly prohibited and may be illegal. If you
are
>>>>> not an intended recipient then please promptly delete this e-mail and
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>>>>> attachment and all copies and inform the sender directly via email. Any
>>>>> emails that you send to us may be monitored by systems or persons other
>>>>> than the named communicant for the purposes of ascertaining whether the
>>>>> communication complies with the law and company policies.
>>>>
>>>>
>>>
>>
>>
>> --
>>
>> Best regards,
>> Ahmed Vila | Senior software developer
>> DevLogic | Sarajevo | Bosnia and Herzegovina
>>
>> Office : +387 33 942 123
>> Mobile: +387 62 139 348
>>
>> Website: www.devlogic.eu
>> E-mail   : avila@devlogic.eu
>> ---------------------------------------------------------------------
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>>
>> ---------------------------------------------------------------------
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>
>


-- 

Best regards,
Ahmed Vila | Senior software developer
DevLogic | Sarajevo | Bosnia and Herzegovina

Office : +387 33 942 123
Mobile: +387 62 139 348

Website: www.devlogic.eu
E-mail   : avila@devlogic.eu
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