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https://issues.apache.org/jira/browse/HBASE-7326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved HBASE-7326.
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Resolution: Duplicate
> SortedCopyOnWriteSet is not thread safe due to leaked TreeSet implemen
bq. increasing number of threads seems to be an incomplete solution
I agree - since the number of concurrent IO intensive client requests is
unpredictable.
One possible solution, in case of cache miss for the reads, is thru
mechanism similar to Java 8's CompletableFuture.
See this post:
https:/
Yes, that is indeed the problem. It is caused by
1) HBase has a fixed number (by default 30) of RPC handlers (a reasonable
design choice)
2) RPC handlers block on HDFS reads (also a reasonable design choice)
As the system has a higher load of I/O intensive workloads, all RPC
handlers would be blo
+1 to that :D
Stack wrote:
Hot Dog!
On Fri, Mar 31, 2017 at 3:03 PM, Misty Stanley-Jones
wrote:
FYI, the linked Jenkins job now automatically updates the site! No more
need to manually push. Merry Christmas! :)
- Original message -
From: Apache Jenkins Server
To: dev@hbase.apache.org
I think the problem is that you ONLY have 30 "handler" threads (
hbase.regionserver.handler.count). Handlers are the main thread pool that
executes the RPC requests. When you do an IO bound requests, very likely
all of the 30 threads are just blocked by the disk access, so that the
total throughput
On Fri, Mar 31, 2017 at 3:11 PM, Misty Stanley-Jones
wrote:
> All,
>
> We have updated the Code of Conduct to be a little more explicit about
> how much we value diversity in the HBase project, and to ask for your
> feedback on how we can improve. Your feedback is ALWAYS welcome, whether
> on one
Hot Dog!
On Fri, Mar 31, 2017 at 3:03 PM, Misty Stanley-Jones
wrote:
> FYI, the linked Jenkins job now automatically updates the site! No more
> need to manually push. Merry Christmas! :)
>
> - Original message -
> From: Apache Jenkins Server
> To: dev@hbase.apache.org
> Subject: Succes
Zheng Hu created HBASE-17867:
Summary: Implement async procedure RPC
API(list/exec/abort/isFinished)
Key: HBASE-17867
URL: https://issues.apache.org/jira/browse/HBASE-17867
Project: HBase
Issue
Zheng Hu created HBASE-17866:
Summary: Implement async setQuota/getQuota methods.
Key: HBASE-17866
URL: https://issues.apache.org/jira/browse/HBASE-17866
Project: HBase
Issue Type: Sub-task
Zheng Hu created HBASE-17865:
Summary: Implement async listSnapshot/deleteSnapshot methods.
Key: HBASE-17865
URL: https://issues.apache.org/jira/browse/HBASE-17865
Project: HBase
Issue Type: Sub-
Zheng Hu created HBASE-17864:
Summary: Implement async snapshot/cloneSnapshot/restoreSnapshot
methods
Key: HBASE-17864
URL: https://issues.apache.org/jira/browse/HBASE-17864
Project: HBase
Issue
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