Select distinct keys from column family; hits a timeout exception.
pk1, pk2,…pkn are 800K in total.
From: Mohammed Guller [mailto:moham...@glassbeam.com]
Sent: Friday, January 23, 2015 3:24 PM
To: user@cassandra.apache.org
Subject: RE: Retrieving all row keys of a CF
No wonder, the client
: RE: Retrieving all row keys of a CF
Hi,
I increased range timeout, read timeout to first to 50 secs then 500 secs and
Astyanax client to 60, 550 secs respectively. I still get timeout exception.
I see the logic with .withCheckpointManager() code, is that the only way it
could work?
From: Eric
]
Sent: Saturday, January 17, 2015 9:55 AM
To: user@cassandra.apache.org
Subject: Re: Retrieving all row keys of a CF
If you're getting partial data back, then failing eventually, try setting
.withCheckpointManager() - this will let you keep track of the token ranges
you've successfully processed
CF”
You will need to specify all the composite columns if you are using a composite
partition key.
Mohammed
From: Ravi Agrawal [mailto:ragra...@clearpoolgroup.com]
Sent: Thursday, January 22, 2015 1:57 PM
To: user@cassandra.apache.org
Subject: RE: Retrieving all row keys of a CF
Hi,
I increased
In each partition cql rows on average is 200K. Max is 3M.
800K is number of cassandra partitions.
From: Mohammed Guller [mailto:moham...@glassbeam.com]
Sent: Thursday, January 22, 2015 7:43 PM
To: user@cassandra.apache.org
Subject: RE: Retrieving all row keys of a CF
What is the average and max
[mailto:moham...@glassbeam.com
moham...@glassbeam.com]
*Sent:* Friday, January 16, 2015 7:30 PM
*To:* user@cassandra.apache.org
*Subject:* RE: Retrieving all row keys of a CF
A few questions:
1) What is the heap size and total memory on each node?
2) How big is the cluster?
3
Note that getAllRows() is deprecated in Astyanax (see here
https://github.com/Netflix/astyanax/wiki/Getting-Started#iterate-through-the-entire-keyspace-deprecated
).
You should prefer to use the AllRowsReader recipe:
https://github.com/Netflix/astyanax/wiki/AllRowsReader-All-rows-query
Note the
Ruchir,
I am curious if you had better luck with the AllRowsReader recipe.
Mohammed
From: Eric Stevens [mailto:migh...@gmail.com]
Sent: Friday, January 16, 2015 12:33 PM
To: user@cassandra.apache.org
Subject: Re: Retrieving all row keys of a CF
Note that getAllRows() is deprecated in Astyanax
Hi,
I and Ruchir tried query using AllRowsReader recipe but had no luck. We are
seeing PoolTimeoutException.
SEVERE: [Thread_1] Error reading RowKeys
com.netflix.astyanax.connectionpool.exceptions.PoolTimeoutException:
PoolTimeoutException: [host=servername, latency=2003(2003), attempts=4]Timed
* nodes? How long does GC for new gen
and old gen take?
6) Does any node crash with OOM error when you try AllRowsReader?
Mohammed
From: Ravi Agrawal [mailto:ragra...@clearpoolgroup.com]
Sent: Friday, January 16, 2015 4:14 PM
To: user@cassandra.apache.org
Subject: Re: Retrieving all row keys
, January 16, 2015 7:30 PM
To: user@cassandra.apache.org
Subject: RE: Retrieving all row keys of a CF
A few questions:
1) What is the heap size and total memory on each node?
2) How big is the cluster?
3) What are the read and range timeouts (in cassandra.yaml) on the C*
nodes?
4
the nodes
after increasing the timeout and try again.
Mohammed
From: Ravi Agrawal [mailto:ragra...@clearpoolgroup.com]
Sent: Friday, January 16, 2015 5:11 PM
To: user@cassandra.apache.org
Subject: RE: Retrieving all row keys of a CF
1)What is the heap size and total memory on each node
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