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Posted to user@cassandra.apache.org by Dionne Cloudoupoulos <ne...@gmail.com> on 2018/08/10 16:35:12 UTC
Re: Cassandra Compaction Metrics - CompletedTasks vs
TotalCompactionCompleted
On 2017/10/31 16:56:29, Chris Lohfink wrote:
> The "CompletedTasks" metric is a measure of how many tasks ran on these two
> executors combined.
> The "TotalCompactionsCompleted" metric is a measure of how many compactions
> issued from the compaction manager ran (normal compactions, cache writes,
> scrub, 2i and MVs). So while they may be close, depending on whats
> happening on the system, theres no assurance that they will be within any
> bounds of each other.
all this is very interesting, but I do not understand why
CompletedTasks grows at the rate of five thousand operations per hour in
my cloud. Have an idea where can I look? kalo dromo
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Re: Cassandra Compaction Metrics - CompletedTasks vs
TotalCompactionCompleted
Posted by Chris Lohfink <cl...@apple.com>.
If its occurring that often you can monitor nodetool compactionstats to see whats running
> On Aug 10, 2018, at 11:35 AM, Dionne Cloudoupoulos <ne...@gmail.com> wrote:
>
> On 2017/10/31 16:56:29, Chris Lohfink wrote:
>> The "CompletedTasks" metric is a measure of how many tasks ran on these two
>> executors combined.
>> The "TotalCompactionsCompleted" metric is a measure of how many compactions
>> issued from the compaction manager ran (normal compactions, cache writes,
>> scrub, 2i and MVs). So while they may be close, depending on whats
>> happening on the system, theres no assurance that they will be within any
>> bounds of each other.
>
> all this is very interesting, but I do not understand why
> CompletedTasks grows at the rate of five thousand operations per hour in
> my cloud. Have an idea where can I look? kalo dromo
>
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