Hi Lokesh,
Jack Krupansky sent an email to this list just this morning with all the
detail you should need to understand why this happens.
Steve
On Mon, Apr 18, 2016 at 4:38 PM, Lokesh Ceeba - Vendor <
lokesh.ce...@walmart.com> wrote:
> Hello Team
>
> The Kafka-Storm is running and the logs says,
> it processed 500,000 records.
>
>
>
> But the table count(*) fails – timeout -- Do you know why ??
>
>
>
>
>
> cqlsh:sandbox> select count(*) from events;
>
> OperationTimedOut: errors={}, last_host=10.226.68.248
>
>
>
>
>
> DDL –setting parameters
>
>
>
>
>
> AND bloom_filter_fp_chance = 0.01
>
> AND comment = ''
>
> AND dclocal_read_repair_chance = 0.1
>
> AND default_time_to_live = 0
>
> AND gc_grace_seconds = 864000
>
> AND max_index_interval = 2048
>
> AND memtable_flush_period_in_ms = 0
>
> AND min_index_interval = 128
>
> AND read_repair_chance = 0.0
>
> AND speculative_retry = '99.0PERCENTILE'
>
> AND caching = {
>
> 'keys' : 'ALL',
>
> 'rows_per_partition' : 'NONE'
>
> }
>
> AND compression = {
>
> 'chunk_length_kb' : 64,
>
> 'crc_check_chance' : 1.0,
>
> 'sstable_compression' : 'LZ4Compressor'
>
> }
>
> AND compaction = {
>
> 'bucket_high' : 1.5,
>
> 'bucket_low' : 0.5,
>
> 'class' : 'LeveledCompactionStrategy',
>
> 'cold_reads_to_omit' : 0.05,
>
> 'enabled' : true,
>
> 'max_threshold' : 32,
>
> 'min_sstable_size' : 50,
>
> 'min_threshold' : 4,
>
> 'tombstone_compaction_interval' : 86400,
>
> 'tombstone_threshold' : 0.2,
>
> 'unchecked_tombstone_compaction' : false
>
> };
>
>
>
>
>
>
>
>
>
>
>
> Thanks
>
> Lokesh
> This email and any files transmitted with it are confidential and intended
> solely for the individual or entity to whom they are addressed. If you have
> received this email in error destroy it immediately. *** Walmart
> Confidential ***
>
--
Steve Robenalt
Software Architect
sroben...@highwire.org <bza...@highwire.org>
(office/cell): 916-505-1785
HighWire Press, Inc.
425 Broadway St, Redwood City, CA 94063
www.highwire.org
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