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Posted to hdfs-user@hadoop.apache.org by Manish Verma <ma...@gmail.com> on 2013/08/01 02:30:29 UTC
incrCounter doesn't return a value
Hi,
I wanted to use the incrCounter API to generate auto increment ids but the
problem is that it doesn't return the incremented value. Does anyone know
why this API does not return the incremented value? And whether it would be
possible to change it to return the incremented value?
Thanks
Manish V
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Jens/Ashish,
Thanks for your replies. I missed the point that these counters are
maintained by their respective tasks and periodically sent to the
tasktracker and then to the jobtracker for global aggregation.
Thanks
Manish
On Sun, Aug 4, 2013 at 10:43 AM, Ashish Umrani <as...@gmail.com>wrote:
> Manish,
>
> I am not sure if the counter would provide a globally unique id. To the
> best of my knowledge, Counters are mapper specific. So even if one could
> see the application working on one mapper, at the end, when deployed on
> production, duplicate ids would cause a problem. So, unless you are
> looking for uniqueness on a single mapper, I would suggest you to look for
> some other solution, perhaps like the one suggested by Jens.
>
> Regards
> ashish
>
>
> On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
> jens.scheidtmann@gmail.com> wrote:
>
>> Dear Manish,
>>
>> Use some combination of Job Id and/or IP address and other attributes to
>> make your own unique ids. incrCounter had to synchronize globally across
>> your cluster, if it were to provide incremental IDs.
>>
>> Best regards,
>>
>> Jens
>>
>> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Jens/Ashish,
Thanks for your replies. I missed the point that these counters are
maintained by their respective tasks and periodically sent to the
tasktracker and then to the jobtracker for global aggregation.
Thanks
Manish
On Sun, Aug 4, 2013 at 10:43 AM, Ashish Umrani <as...@gmail.com>wrote:
> Manish,
>
> I am not sure if the counter would provide a globally unique id. To the
> best of my knowledge, Counters are mapper specific. So even if one could
> see the application working on one mapper, at the end, when deployed on
> production, duplicate ids would cause a problem. So, unless you are
> looking for uniqueness on a single mapper, I would suggest you to look for
> some other solution, perhaps like the one suggested by Jens.
>
> Regards
> ashish
>
>
> On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
> jens.scheidtmann@gmail.com> wrote:
>
>> Dear Manish,
>>
>> Use some combination of Job Id and/or IP address and other attributes to
>> make your own unique ids. incrCounter had to synchronize globally across
>> your cluster, if it were to provide incremental IDs.
>>
>> Best regards,
>>
>> Jens
>>
>> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Jens/Ashish,
Thanks for your replies. I missed the point that these counters are
maintained by their respective tasks and periodically sent to the
tasktracker and then to the jobtracker for global aggregation.
Thanks
Manish
On Sun, Aug 4, 2013 at 10:43 AM, Ashish Umrani <as...@gmail.com>wrote:
> Manish,
>
> I am not sure if the counter would provide a globally unique id. To the
> best of my knowledge, Counters are mapper specific. So even if one could
> see the application working on one mapper, at the end, when deployed on
> production, duplicate ids would cause a problem. So, unless you are
> looking for uniqueness on a single mapper, I would suggest you to look for
> some other solution, perhaps like the one suggested by Jens.
>
> Regards
> ashish
>
>
> On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
> jens.scheidtmann@gmail.com> wrote:
>
>> Dear Manish,
>>
>> Use some combination of Job Id and/or IP address and other attributes to
>> make your own unique ids. incrCounter had to synchronize globally across
>> your cluster, if it were to provide incremental IDs.
>>
>> Best regards,
>>
>> Jens
>>
>> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Jens/Ashish,
Thanks for your replies. I missed the point that these counters are
maintained by their respective tasks and periodically sent to the
tasktracker and then to the jobtracker for global aggregation.
Thanks
Manish
On Sun, Aug 4, 2013 at 10:43 AM, Ashish Umrani <as...@gmail.com>wrote:
> Manish,
>
> I am not sure if the counter would provide a globally unique id. To the
> best of my knowledge, Counters are mapper specific. So even if one could
> see the application working on one mapper, at the end, when deployed on
> production, duplicate ids would cause a problem. So, unless you are
> looking for uniqueness on a single mapper, I would suggest you to look for
> some other solution, perhaps like the one suggested by Jens.
>
> Regards
> ashish
>
>
> On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
> jens.scheidtmann@gmail.com> wrote:
>
>> Dear Manish,
>>
>> Use some combination of Job Id and/or IP address and other attributes to
>> make your own unique ids. incrCounter had to synchronize globally across
>> your cluster, if it were to provide incremental IDs.
>>
>> Best regards,
>>
>> Jens
>>
>> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
Manish,
I am not sure if the counter would provide a globally unique id. To the
best of my knowledge, Counters are mapper specific. So even if one could
see the application working on one mapper, at the end, when deployed on
production, duplicate ids would cause a problem. So, unless you are
looking for uniqueness on a single mapper, I would suggest you to look for
some other solution, perhaps like the one suggested by Jens.
Regards
ashish
On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
jens.scheidtmann@gmail.com> wrote:
> Dear Manish,
>
> Use some combination of Job Id and/or IP address and other attributes to
> make your own unique ids. incrCounter had to synchronize globally across
> your cluster, if it were to provide incremental IDs.
>
> Best regards,
>
> Jens
>
> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
Manish,
I am not sure if the counter would provide a globally unique id. To the
best of my knowledge, Counters are mapper specific. So even if one could
see the application working on one mapper, at the end, when deployed on
production, duplicate ids would cause a problem. So, unless you are
looking for uniqueness on a single mapper, I would suggest you to look for
some other solution, perhaps like the one suggested by Jens.
Regards
ashish
On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
jens.scheidtmann@gmail.com> wrote:
> Dear Manish,
>
> Use some combination of Job Id and/or IP address and other attributes to
> make your own unique ids. incrCounter had to synchronize globally across
> your cluster, if it were to provide incremental IDs.
>
> Best regards,
>
> Jens
>
> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
Manish,
I am not sure if the counter would provide a globally unique id. To the
best of my knowledge, Counters are mapper specific. So even if one could
see the application working on one mapper, at the end, when deployed on
production, duplicate ids would cause a problem. So, unless you are
looking for uniqueness on a single mapper, I would suggest you to look for
some other solution, perhaps like the one suggested by Jens.
Regards
ashish
On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
jens.scheidtmann@gmail.com> wrote:
> Dear Manish,
>
> Use some combination of Job Id and/or IP address and other attributes to
> make your own unique ids. incrCounter had to synchronize globally across
> your cluster, if it were to provide incremental IDs.
>
> Best regards,
>
> Jens
>
> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
Manish,
I am not sure if the counter would provide a globally unique id. To the
best of my knowledge, Counters are mapper specific. So even if one could
see the application working on one mapper, at the end, when deployed on
production, duplicate ids would cause a problem. So, unless you are
looking for uniqueness on a single mapper, I would suggest you to look for
some other solution, perhaps like the one suggested by Jens.
Regards
ashish
On Sun, Aug 4, 2013 at 10:36 AM, Jens Scheidtmann <
jens.scheidtmann@gmail.com> wrote:
> Dear Manish,
>
> Use some combination of Job Id and/or IP address and other attributes to
> make your own unique ids. incrCounter had to synchronize globally across
> your cluster, if it were to provide incremental IDs.
>
> Best regards,
>
> Jens
>
> Am Donnerstag, 1. August 2013 schrieb Manish Verma :
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
incrCounter doesn't return a value
Posted by Jens Scheidtmann <je...@gmail.com>.
Dear Manish,
Use some combination of Job Id and/or IP address and other attributes to
make your own unique ids. incrCounter had to synchronize globally across
your cluster, if it were to provide incremental IDs.
Best regards,
Jens
Am Donnerstag, 1. August 2013 schrieb Manish Verma :
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Rishi,
I want to call this API from the mappers.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:39 PM, Rishi Yadav <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Ashish,
I agree that incrCounter API works as designed. I looked at other ways to
generate auto increment ids and found that ZooKeeper has been used by some
to do this. Unique numbers would not satisfy my requirement as I am moving
an app from traditional data warehouse to Hadoop. The incrCounter API would
have worked for me if it had supported returning the incremented value.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:45 PM, Ashish Umrani <as...@gmail.com>wrote:
> While I whole heartedly agree that it could be useful if counter would
> have returned the incremented value, the purpose of coubter is not that.
> Counters are used for counting incidence occurance.
>
> I have not read through details ofvtge issue, but if you want to generate
> a unique number, then there could be some otger time based mechanism, which
> would make more sense.
>
> Ashish
> On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
>
>> Hi Manish,
>>
>> Can you give some more details. You are accessing counter values from
>> driver?
>>
>>
>>
>>
>> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <manish.lifepart2@gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Ashish,
I agree that incrCounter API works as designed. I looked at other ways to
generate auto increment ids and found that ZooKeeper has been used by some
to do this. Unique numbers would not satisfy my requirement as I am moving
an app from traditional data warehouse to Hadoop. The incrCounter API would
have worked for me if it had supported returning the incremented value.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:45 PM, Ashish Umrani <as...@gmail.com>wrote:
> While I whole heartedly agree that it could be useful if counter would
> have returned the incremented value, the purpose of coubter is not that.
> Counters are used for counting incidence occurance.
>
> I have not read through details ofvtge issue, but if you want to generate
> a unique number, then there could be some otger time based mechanism, which
> would make more sense.
>
> Ashish
> On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
>
>> Hi Manish,
>>
>> Can you give some more details. You are accessing counter values from
>> driver?
>>
>>
>>
>>
>> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <manish.lifepart2@gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Ashish,
I agree that incrCounter API works as designed. I looked at other ways to
generate auto increment ids and found that ZooKeeper has been used by some
to do this. Unique numbers would not satisfy my requirement as I am moving
an app from traditional data warehouse to Hadoop. The incrCounter API would
have worked for me if it had supported returning the incremented value.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:45 PM, Ashish Umrani <as...@gmail.com>wrote:
> While I whole heartedly agree that it could be useful if counter would
> have returned the incremented value, the purpose of coubter is not that.
> Counters are used for counting incidence occurance.
>
> I have not read through details ofvtge issue, but if you want to generate
> a unique number, then there could be some otger time based mechanism, which
> would make more sense.
>
> Ashish
> On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
>
>> Hi Manish,
>>
>> Can you give some more details. You are accessing counter values from
>> driver?
>>
>>
>>
>>
>> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <manish.lifepart2@gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Ashish,
I agree that incrCounter API works as designed. I looked at other ways to
generate auto increment ids and found that ZooKeeper has been used by some
to do this. Unique numbers would not satisfy my requirement as I am moving
an app from traditional data warehouse to Hadoop. The incrCounter API would
have worked for me if it had supported returning the incremented value.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:45 PM, Ashish Umrani <as...@gmail.com>wrote:
> While I whole heartedly agree that it could be useful if counter would
> have returned the incremented value, the purpose of coubter is not that.
> Counters are used for counting incidence occurance.
>
> I have not read through details ofvtge issue, but if you want to generate
> a unique number, then there could be some otger time based mechanism, which
> would make more sense.
>
> Ashish
> On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
>
>> Hi Manish,
>>
>> Can you give some more details. You are accessing counter values from
>> driver?
>>
>>
>>
>>
>> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <manish.lifepart2@gmail.com
>> > wrote:
>>
>>> Hi,
>>>
>>> I wanted to use the incrCounter API to generate auto increment ids but
>>> the problem is that it doesn't return the incremented value. Does anyone
>>> know why this API does not return the incremented value? And whether it
>>> would be possible to change it to return the incremented value?
>>>
>>> Thanks
>>> Manish V
>>>
>>
>>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
While I whole heartedly agree that it could be useful if counter would have
returned the incremented value, the purpose of coubter is not that.
Counters are used for counting incidence occurance.
I have not read through details ofvtge issue, but if you want to generate a
unique number, then there could be some otger time based mechanism, which
would make more sense.
Ashish
On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
While I whole heartedly agree that it could be useful if counter would have
returned the incremented value, the purpose of coubter is not that.
Counters are used for counting incidence occurance.
I have not read through details ofvtge issue, but if you want to generate a
unique number, then there could be some otger time based mechanism, which
would make more sense.
Ashish
On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
While I whole heartedly agree that it could be useful if counter would have
returned the incremented value, the purpose of coubter is not that.
Counters are used for counting incidence occurance.
I have not read through details ofvtge issue, but if you want to generate a
unique number, then there could be some otger time based mechanism, which
would make more sense.
Ashish
On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Rishi,
I want to call this API from the mappers.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:39 PM, Rishi Yadav <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Rishi,
I want to call this API from the mappers.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:39 PM, Rishi Yadav <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Manish Verma <ma...@gmail.com>.
Rishi,
I want to call this API from the mappers.
Thanks
Manish
On Sat, Aug 3, 2013 at 4:39 PM, Rishi Yadav <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Ashish Umrani <as...@gmail.com>.
While I whole heartedly agree that it could be useful if counter would have
returned the incremented value, the purpose of coubter is not that.
Counters are used for counting incidence occurance.
I have not read through details ofvtge issue, but if you want to generate a
unique number, then there could be some otger time based mechanism, which
would make more sense.
Ashish
On Aug 3, 2013 4:40 PM, "Rishi Yadav" <ri...@infoobjects.com> wrote:
> Hi Manish,
>
> Can you give some more details. You are accessing counter values from
> driver?
>
>
>
>
> On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
>
>> Hi,
>>
>> I wanted to use the incrCounter API to generate auto increment ids but
>> the problem is that it doesn't return the incremented value. Does anyone
>> know why this API does not return the incremented value? And whether it
>> would be possible to change it to return the incremented value?
>>
>> Thanks
>> Manish V
>>
>
>
Re: incrCounter doesn't return a value
Posted by Rishi Yadav <ri...@infoobjects.com>.
Hi Manish,
Can you give some more details. You are accessing counter values from
driver?
On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
Re: incrCounter doesn't return a value
Posted by Rishi Yadav <ri...@infoobjects.com>.
Hi Manish,
Can you give some more details. You are accessing counter values from
driver?
On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
incrCounter doesn't return a value
Posted by Jens Scheidtmann <je...@gmail.com>.
Dear Manish,
Use some combination of Job Id and/or IP address and other attributes to
make your own unique ids. incrCounter had to synchronize globally across
your cluster, if it were to provide incremental IDs.
Best regards,
Jens
Am Donnerstag, 1. August 2013 schrieb Manish Verma :
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
Re: incrCounter doesn't return a value
Posted by Rishi Yadav <ri...@infoobjects.com>.
Hi Manish,
Can you give some more details. You are accessing counter values from
driver?
On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
incrCounter doesn't return a value
Posted by Jens Scheidtmann <je...@gmail.com>.
Dear Manish,
Use some combination of Job Id and/or IP address and other attributes to
make your own unique ids. incrCounter had to synchronize globally across
your cluster, if it were to provide incremental IDs.
Best regards,
Jens
Am Donnerstag, 1. August 2013 schrieb Manish Verma :
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
Re: incrCounter doesn't return a value
Posted by Rishi Yadav <ri...@infoobjects.com>.
Hi Manish,
Can you give some more details. You are accessing counter values from
driver?
On Wed, Jul 31, 2013 at 5:30 PM, Manish Verma <ma...@gmail.com>wrote:
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>
incrCounter doesn't return a value
Posted by Jens Scheidtmann <je...@gmail.com>.
Dear Manish,
Use some combination of Job Id and/or IP address and other attributes to
make your own unique ids. incrCounter had to synchronize globally across
your cluster, if it were to provide incremental IDs.
Best regards,
Jens
Am Donnerstag, 1. August 2013 schrieb Manish Verma :
> Hi,
>
> I wanted to use the incrCounter API to generate auto increment ids but the
> problem is that it doesn't return the incremented value. Does anyone know
> why this API does not return the incremented value? And whether it would be
> possible to change it to return the incremented value?
>
> Thanks
> Manish V
>