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Posted to dev@zookeeper.apache.org by Patrick Hunt <ph...@apache.org> on 2011/07/08 01:10:13 UTC

Review Request: automating log and snapshot cleaning

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/
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Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.


Summary
-------

I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.


This addresses bug ZOOKEEPER-1107.
    https://issues.apache.org/jira/browse/ZOOKEEPER-1107


Diffs
-----

  ./conf/zoo_sample.cfg 1141901 
  ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
  ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
  ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 

Diff: https://reviews.apache.org/r/1043/diff


Testing
-------

test added, passing hudson qa bot.


Thanks,

Patrick


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.

> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, lines 74-77
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line74>
> >
> >     move this check to the start method.
> >     
> >     1) INFO level log if turned off
> >     2) exit the thread if turned off

Sorry, meant exit the start method if turned off (don't start the timer/task).


- Patrick


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review998
-----------------------------------------------------------


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Laxman Ch <la...@huawei.com>.

> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > The documentation (src/docs) need to be updated - specifically the cleanup section in the admin guide.
> > 
> > Have you considered hooking this into JMX or the 4letterwords? It would be nice for operators to get basic information. In JMX they could also control the settings... consider for a follow-on JIRA?

Fixed the documentation part.

@Pat: I guess I'm not clear about how "hooking into JMX or 4 letter-words" will be helpful. Can you please explain this idea? I can takeup this task in separate JIRA.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./conf/zoo_sample.cfg, lines 15-21
> > <https://reviews.apache.org/r/1043/diff/1/?file=22148#file22148line15>
> >
> >     My personal belief is that this should be turned off by default - i.e. comment out the parameters in the sample config.

Fixed. Also, renamed the configuration keys to make them inline with existing.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java, line 37
> > <https://reviews.apache.org/r/1043/diff/1/?file=22151#file22151line37>
> >
> >     Nice!

Corrected code format issues.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java, lines 384-385
> > <https://reviews.apache.org/r/1043/diff/1/?file=22150#file22150line384>
> >
> >     what does "time" refer to. elapsed time? what are the units.

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java, lines 374-375
> > <https://reviews.apache.org/r/1043/diff/1/?file=22150#file22150line374>
> >
> >     the docs should reflect that this only controls the number of snaps to keep, the logs are purged based on the corresponding purged snaps.

Fixed. Comments are moved to applicable class DatadirCleanupManager and also documented in admin guide as suggested.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java, line 73
> > <https://reviews.apache.org/r/1043/diff/1/?file=22150#file22150line73>
> >
> >     specify explicit default - e.g. 0.

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java, line 72
> > <https://reviews.apache.org/r/1043/diff/1/?file=22150#file22150line72>
> >
> >     specify explicit default, 3?

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 142
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line142>
> >
> >     Zookeeper should be referred to as "ZooKeeper"

Fixed. Redundant information in logs has been removed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 118
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line118>
> >
> >     I would rather we check if the state is started. (log warning if not)

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 104
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line104>
> >
> >     given we are tracking the state shouldn't we be testing that here?

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 103
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line103>
> >
> >     I see tests, which is great, however where is this method being called in ZooKeeper server code proper? (what I mean is the server doesn't seem to be running this)

Called in QuorumPeerMain. Changes included in the latest patch. 


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, lines 83-86
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line83>
> >
> >     this formatting is not very nice, please adjust it a bit.

Fixed in all the places.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, lines 74-77
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line74>
> >
> >     move this check to the start method.
> >     
> >     1) INFO level log if turned off
> >     2) exit the thread if turned off
> 
> Patrick Hunt wrote:
>     Sorry, meant exit the start method if turned off (don't start the timer/task).

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 66
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line66>
> >
> >     perhaps this should be done in start?

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 45
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line45>
> >
> >     use TimeUnit

Fixed.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, lines 39-43
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line39>
> >
> >     enum?

Introduced new enum PurgeTaskStatus.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 38
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line38>
> >
> >     consider calling this something more descriptive - perhaps "DatadirCleanupManager" or similar...

Renamed the source file and test file as well.


> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java, line 19
> > <https://reviews.apache.org/r/1043/diff/1/?file=22149#file22149line19>
> >
> >     should this be in zookeeper or zookeeper.server ?

Moved both source and test files to zookeeper.server package.


- Laxman


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review998
-----------------------------------------------------------


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.

> On 2011-07-07 23:40:32, Patrick Hunt wrote:
> > The documentation (src/docs) need to be updated - specifically the cleanup section in the admin guide.
> > 
> > Have you considered hooking this into JMX or the 4letterwords? It would be nice for operators to get basic information. In JMX they could also control the settings... consider for a follow-on JIRA?
> 
> Laxman Ch wrote:
>     Fixed the documentation part.
>     
>     @Pat: I guess I'm not clear about how "hooking into JMX or 4 letter-words" will be helpful. Can you please explain this idea? I can takeup this task in separate JIRA.

both JMX and 4letterwords provide insight to the operator into the runtime status of the system
http://zookeeper.apache.org/doc/r3.3.3/zookeeperAdmin.html#sc_zkCommands
http://zookeeper.apache.org/doc/r3.3.3/zookeeperJMX.html

what I was suggesting is that you could allow such insight into the cleanup task - for example is the process running, when the last time it ran, a history of the files cleaned up and when, stop the task, restart, etc...


- Patrick


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review998
-----------------------------------------------------------


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review998
-----------------------------------------------------------


The documentation (src/docs) need to be updated - specifically the cleanup section in the admin guide.

Have you considered hooking this into JMX or the 4letterwords? It would be nice for operators to get basic information. In JMX they could also control the settings... consider for a follow-on JIRA?


./conf/zoo_sample.cfg
<https://reviews.apache.org/r/1043/#comment2060>

    My personal belief is that this should be turned off by default - i.e. comment out the parameters in the sample config.



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2081>

    should this be in zookeeper or zookeeper.server ?



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2080>

    consider calling this something more descriptive - perhaps "DatadirCleanupManager" or similar...



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2069>

    enum?



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2070>

    use TimeUnit



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2076>

    perhaps this should be done in start?



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2074>

    move this check to the start method.
    
    1) INFO level log if turned off
    2) exit the thread if turned off



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2073>

    this formatting is not very nice, please adjust it a bit.



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2075>

    I see tests, which is great, however where is this method being called in ZooKeeper server code proper? (what I mean is the server doesn't seem to be running this)



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2079>

    given we are tracking the state shouldn't we be testing that here?



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2077>

    I would rather we check if the state is started. (log warning if not)



./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java
<https://reviews.apache.org/r/1043/#comment2078>

    Zookeeper should be referred to as "ZooKeeper"



./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java
<https://reviews.apache.org/r/1043/#comment2067>

    specify explicit default, 3?



./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java
<https://reviews.apache.org/r/1043/#comment2068>

    specify explicit default - e.g. 0.



./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java
<https://reviews.apache.org/r/1043/#comment2065>

    the docs should reflect that this only controls the number of snaps to keep, the logs are purged based on the corresponding purged snaps.



./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java
<https://reviews.apache.org/r/1043/#comment2066>

    what does "time" refer to. elapsed time? what are the units.



./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java
<https://reviews.apache.org/r/1043/#comment2082>

    Nice!


- Patrick


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.

> On 2011-07-07 23:34:13, Camille Fournier wrote:
> > Are people just supposed to create their own new ZooKeeperPurger and call start on it? I don't see any hooks for starting this anywhere, or even a main method to use to start it. Would be nice to give that to people so they have a utility they can run easily.

Heh, you beat me to it. ;-) I think it should be started by the server, but the config defaults should have it turned off (time=0) by default. (more in my comments)


- Patrick


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review1000
-----------------------------------------------------------


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Camille Fournier <sk...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review1000
-----------------------------------------------------------


Are people just supposed to create their own new ZooKeeperPurger and call start on it? I don't see any hooks for starting this anywhere, or even a main method to use to start it. Would be nice to give that to people so they have a utility they can run easily.

- Camille


On 2011-07-07 23:10:13, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-07 23:10:13)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1141901 
>   ./src/java/main/org/apache/zookeeper/ZooKeeperPurger.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1141901 
>   ./src/java/test/org/apache/zookeeper/ZooKeeperPurgeTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/
-----------------------------------------------------------

(Updated 2011-09-01 16:40:46.185217)


Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.


Changes
-------

updated to 1107.5 patch


Summary
-------

I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.


This addresses bug ZOOKEEPER-1107.
    https://issues.apache.org/jira/browse/ZOOKEEPER-1107


Diffs (updated)
-----

  ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerMain.java 1149082 
  ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1149082 
  ./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java PRE-CREATION 
  ./conf/zoo_sample.cfg 1149082 
  ./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml 1149082 
  ./src/java/test/org/apache/zookeeper/server/DatadirCleanupManagerTest.java PRE-CREATION 

Diff: https://reviews.apache.org/r/1043/diff


Testing
-------

test added, passing hudson qa bot.


Thanks,

Patrick


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/#review1116
-----------------------------------------------------------


This is looking pretty close!


./conf/zoo_sample.cfg
<https://reviews.apache.org/r/1043/#comment2277>

    I think something like
    
    datadircleanupmanager.snapRetainCount
    and
    datadircleanupmanager.purgeInterval
    
    would be better here -- less ambiguous
    
    (in general we need to cleanup our configuration naming/handling at some point)



./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml
<https://reviews.apache.org/r/1043/#comment2281>

    mention that this is "new in 3.4.0" -- see some of the other parameters such as "clientPortAddress" for an example of how to do this.



./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml
<https://reviews.apache.org/r/1043/#comment2278>

    something like the following?
    
    the <..>snapretaincount<..> most recent snapshots ...



./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml
<https://reviews.apache.org/r/1043/#comment2279>

    replace "purges" with "deletes"?



./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml
<https://reviews.apache.org/r/1043/#comment2280>

    do you mean something like:
    
    "Default is 3. Minimum value is 3."
    
    I think this would be a bit more obvious. Might also be good if we print a warning if user sets to less than 3 (and specify we are using 3)



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2282>

    can we add a class javadoc describing this class?



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2283>

    should be "DataDirCleanupManager.class" not nioservercnxn.class.



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2285>

    move this to QPC, check it there, print a warning if user sets below this, and set the config field to this MIN.



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2286>

    if we set this in the constructor we can define these as final.



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2284>

    rather than add a dependency on QPC, could we pass these 4 parameters into a constructor for this class? Notice how this also makes your tests easier (no need to meddle with config).
    
    
    shouldn't we check the state before starting?



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2287>

    move this to QPC



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2288>

    I'd move this to the constructor of this class.



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2289>

    nit - formatting is a bit off, typ
    
    if (foo < bar) {
        ...
    }
    



./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java
<https://reviews.apache.org/r/1043/#comment2292>

    final


- Patrick


On 2011-07-19 21:04:20, Patrick Hunt wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/1043/
> -----------------------------------------------------------
> 
> (Updated 2011-07-19 21:04:20)
> 
> 
> Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.
> 
> 
> Summary
> -------
> 
> I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.
> 
> 
> This addresses bug ZOOKEEPER-1107.
>     https://issues.apache.org/jira/browse/ZOOKEEPER-1107
> 
> 
> Diffs
> -----
> 
>   ./conf/zoo_sample.cfg 1146568 
>   ./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml 1146568 
>   ./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java PRE-CREATION 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1146568 
>   ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerMain.java 1146568 
>   ./src/java/test/org/apache/zookeeper/server/DatadirCleanupManagerTest.java PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/1043/diff
> 
> 
> Testing
> -------
> 
> test added, passing hudson qa bot.
> 
> 
> Thanks,
> 
> Patrick
> 
>


Re: Review Request: automating log and snapshot cleaning

Posted by Patrick Hunt <ph...@apache.org>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1043/
-----------------------------------------------------------

(Updated 2011-07-19 21:04:20.729172)


Review request for zookeeper, Patrick Hunt, Benjamin Reed, and Mahadev Konar.


Changes
-------

Updated with ZOOKEEPER-1107.4.patch


Summary
-------

I like to have ZK itself manage the amount of snapshots and logs kept, instead of relying on the PurgeTxnLog utility.


This addresses bug ZOOKEEPER-1107.
    https://issues.apache.org/jira/browse/ZOOKEEPER-1107


Diffs (updated)
-----

  ./conf/zoo_sample.cfg 1146568 
  ./src/docs/src/documentation/content/xdocs/zookeeperAdmin.xml 1146568 
  ./src/java/main/org/apache/zookeeper/server/DatadirCleanupManager.java PRE-CREATION 
  ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerConfig.java 1146568 
  ./src/java/main/org/apache/zookeeper/server/quorum/QuorumPeerMain.java 1146568 
  ./src/java/test/org/apache/zookeeper/server/DatadirCleanupManagerTest.java PRE-CREATION 

Diff: https://reviews.apache.org/r/1043/diff


Testing
-------

test added, passing hudson qa bot.


Thanks,

Patrick