[kudu-CR](branch-0.9.x) service_pool: only log queue overflows once per second

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Todd Lipcon has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/3197

Change subject: service_pool: only log queue overflows once per second
......................................................................

service_pool: only log queue overflows once per second

These queue overflow messages are extremely frequent on stress
workloads, and I found that the log spew itself caused the server to
block on glog locks, compounding the problem. Spewing these messages is
rarely helpful, so this patch throttles it to once a second.

Change-Id: I636ef39798f9b2ab7d8aec237285c949ec119468
Reviewed-on: http://gerrit.cloudera.org:8080/3185
Tested-by: Kudu Jenkins
Reviewed-by: Jean-Daniel Cryans
(cherry picked from commit 298806fa32c44e986c2401fa5ac416bcbc491523)
---
M src/kudu/rpc/service_pool.cc
1 file changed, 2 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/97/3197/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I636ef39798f9b2ab7d8aec237285c949ec119468
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: branch-0.9.x
Gerrit-Owner: Todd Lipcon <to...@apache.org>