[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Impala Public Jenkins (Code Review) 
Impala Public Jenkins has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 5: Verified+1


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 5
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Wed, 07 Feb 2018 03:24:59 +
Gerrit-HasComments: No

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Impala Public Jenkins (Code Review) 
Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..

IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms and negotiation 
thread count in KRPC

With the fix for KUDU-2228, the FLAGS_rpc_negotiation_timeout_ms was
retired in KRPC.

This patch introduces a flag to be able to configure that from the
Impala side (FLAGS_rpc_negotiation_timeout_ms).

It also introduces a flag to configure the negotiation
thread count (FLAGS_rpc_negotiation_thread_count).

Added a test to verify that setting FLAGS_rpc_negotiation_timeout_ms
to 0 causes negotiation failures. We unfortunately can't write a test
to check the same for FLAGS_rpc_negotiation_thread_count due to
DCHECKS present in the code.

Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Reviewed-on: http://gerrit.cloudera.org:8080/9186
Reviewed-by: Sailesh Mukil 
Tested-by: Impala Public Jenkins
---
M be/src/rpc/rpc-mgr-test.cc
M be/src/rpc/rpc-mgr.cc
2 files changed, 28 insertions(+), 0 deletions(-)

Approvals:
  Sailesh Mukil: Looks good to me, approved
  Impala Public Jenkins: Verified

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Gerrit-MessageType: merged
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 6
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Sailesh Mukil (Code Review) 
Sailesh Mukil has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 5: Code-Review+2

Rebase, carry +2.


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Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 5
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Tue, 06 Feb 2018 23:43:27 +
Gerrit-HasComments: No

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Sailesh Mukil (Code Review) 
Sailesh Mukil has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 4: Code-Review+2

(2 comments)

Thanks for the review.

Holding off on GVO until IMPALA-6485 unblocks GVO.

http://gerrit.cloudera.org:8080/#/c/9186/3/be/src/rpc/rpc-mgr-test.cc
File be/src/rpc/rpc-mgr-test.cc:

http://gerrit.cloudera.org:8080/#/c/9186/3/be/src/rpc/rpc-mgr-test.cc@235
PS3, Line 235: // establishment fails.
> May help to clarify:
Done


http://gerrit.cloudera.org:8080/#/c/9186/3/be/src/rpc/rpc-mgr-test.cc@252
PS3, Line 252:   secondary_rpc_mgr.Shutdown();
> nit: extra blank line.
Done



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 4
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Tue, 06 Feb 2018 22:31:18 +
Gerrit-HasComments: Yes

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Sailesh Mukil (Code Review) 
Hello Michael Ho,

I'd like you to reexamine a change. Please visit

http://gerrit.cloudera.org:8080/9186

to look at the new patch set (#4).

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..

IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms and negotiation 
thread count in KRPC

With the fix for KUDU-2228, the FLAGS_rpc_negotiation_timeout_ms was
retired in KRPC.

This patch introduces a flag to be able to configure that from the
Impala side (FLAGS_rpc_negotiation_timeout_ms).

It also introduces a flag to configure the negotiation
thread count (FLAGS_rpc_negotiation_thread_count).

Added a test to verify that setting FLAGS_rpc_negotiation_timeout_ms
to 0 causes negotiation failures. We unfortunately can't write a test
to check the same for FLAGS_rpc_negotiation_thread_count due to
DCHECKS present in the code.

Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
---
M be/src/rpc/rpc-mgr-test.cc
M be/src/rpc/rpc-mgr.cc
2 files changed, 28 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/86/9186/4
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 4
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Sailesh Mukil (Code Review) 
Sailesh Mukil has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 3:

(3 comments)

http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc
File be/src/rpc/rpc-mgr-test.cc:

http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@537
PS2, Line 537:
> Should this use something like ScopedFlagSetter() in case the ASSERT below
Yes, good idea. Done.


http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@541
PS2, Line 541:
> Is TLS always enabled ? Seem a bit misleading to have the "tls_" prefix her
Sorry that was a mistake. I forgot to change the name of the variable. Done.


http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@551
PS2, Line 551: 
> Just wondering if it'll be a problem if ASSERT() above gets triggered. Will
If ASSERT() is triggered, we fail the BE test anyway right? So, even though the 
RpcMgr isn't shutdown, the process will kill it.



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Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 3
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Tue, 06 Feb 2018 19:14:02 +
Gerrit-HasComments: Yes

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-06 Thread Sailesh Mukil (Code Review) 
Hello Michael Ho,

I'd like you to reexamine a change. Please visit

http://gerrit.cloudera.org:8080/9186

to look at the new patch set (#3).

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..

IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms and negotiation 
thread count in KRPC

With the fix for KUDU-2228, the FLAGS_rpc_negotiation_timeout_ms was
retired in KRPC.

This patch introduces a flag to be able to configure that from the
Impala side (FLAGS_rpc_negotiation_timeout_ms).

It also introduces a flag to configure the negotiation
thread count (FLAGS_rpc_negotiation_thread_count).

Added a test to verify that setting FLAGS_rpc_negotiation_timeout_ms
to 0 causes negotiation failures. We unfortunately can't write a test
to check the same for FLAGS_rpc_negotiation_thread_count due to
DCHECKS present in the code.

Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
---
M be/src/rpc/rpc-mgr-test.cc
M be/src/rpc/rpc-mgr.cc
2 files changed, 28 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/86/9186/3
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 3
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-05 Thread Michael Ho (Code Review) 
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 2:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc
File be/src/rpc/rpc-mgr-test.cc:

http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@537
PS2, Line 537: auto save_rpc_negotiation_timeout_ms = 
FLAGS_rpc_negotiation_timeout_ms;
Should this use something like ScopedFlagSetter() in case the ASSERT below 
fires ?


http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@541
PS2, Line 541: tls_krpc_address
Is TLS always enabled ? Seem a bit misleading to have the "tls_" prefix here 
and below.


http://gerrit.cloudera.org:8080/#/c/9186/2/be/src/rpc/rpc-mgr-test.cc@551
PS2, Line 551: secondary_rpc_mgr.Shutdown();
Just wondering if it'll be a problem if ASSERT() above gets triggered. Will we 
exit without calling Shutdown() here ?


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc
File be/src/rpc/rpc-mgr.cc:

http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@84
PS1, Line 84:   
bld.set_rpc_negotiation_timeout_ms(FLAGS_rpc_negotiation_timeout_ms);
> The min number of threads is 0 by default. What that means is that there wo
Makes sense.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 2
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Tue, 06 Feb 2018 07:42:34 +
Gerrit-HasComments: Yes

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-02 Thread Sailesh Mukil (Code Review) 
Sailesh Mukil has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 1:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc
File be/src/rpc/rpc-mgr.cc:

http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@70
PS1, Line 70: Number of threads to dedicate to process connection negotiations
> Maximum number of threads dedicated to handling RPC connection negotiations
Done


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@84
PS1, Line 84:   
bld.set_rpc_negotiation_timeout_ms(FLAGS_rpc_negotiation_timeout_ms);
> Does it make sense to also call bld.set_min_negotiation_threads(1) ?
The min number of threads is 0 by default. What that means is that there won't 
be any "permanent" thread that is always waiting to do negotiation. They will 
be spawned as required (up to max_thread_count) and live for some small period 
after which it times out and kills itself.

Given our workload, we would have bursts of negotiations at different points in 
time with potentially vast intervals in between. So maybe it's better to save 
the resources of that one thread. What do you think?


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@84
PS1, Line 84: FLAGS_rpc_negotiation_timeout_ms
> What happens if this flag is set to negative by accident ? Will the code cr
There's a CHECK to make sure that this isn't negative:
https://github.com/apache/impala/blob/master/be/src/kudu/util/threadpool.cc#L79

So it will cause a crash.


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@85
PS1, Line 85: FLAGS_rpc_negotiation_thread_count
> Will it be safer to do max(1, FLAGS_rpc_negotiation_thread_count) to guaran
Yes that makes sense. Done.



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Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 1
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Reviewer: Sailesh Mukil 
Gerrit-Comment-Date: Fri, 02 Feb 2018 23:46:14 +
Gerrit-HasComments: Yes

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-02 Thread Sailesh Mukil (Code Review) 
Hello Michael Ho,

I'd like you to reexamine a change. Please visit

http://gerrit.cloudera.org:8080/9186

to look at the new patch set (#2).

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..

IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms and negotiation 
thread count in KRPC

With the fix for KUDU-2228, the FLAGS_rpc_negotiation_timeout_ms was
retired in KRPC.

This patch introduces a flag to be able to configure that from the
Impala side (FLAGS_rpc_negotiation_timeout_ms).

It also introduces a flag to configure the negotiation
thread count (FLAGS_rpc_negotiation_thread_count).

Added a test to verify that setting FLAGS_rpc_negotiation_timeout_ms
to 0 causes negotiation failures. We unfortunately can't write a test
to check the same for FLAGS_rpc_negotiation_thread_count due to
DCHECKS present in the code.

Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
---
M be/src/rpc/rpc-mgr-test.cc
M be/src/rpc/rpc-mgr.cc
2 files changed, 31 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/86/9186/2
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 2
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-02 Thread Michael Ho (Code Review) 
Michael Ho has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/9186 )

Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..


Patch Set 1:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc
File be/src/rpc/rpc-mgr.cc:

http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@70
PS1, Line 70: Number of threads to dedicate to process connection negotiations
Maximum number of threads dedicated to handling RPC connection negotiations


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@84
PS1, Line 84:   
bld.set_rpc_negotiation_timeout_ms(FLAGS_rpc_negotiation_timeout_ms);
Does it make sense to also call bld.set_min_negotiation_threads(1) ?


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@84
PS1, Line 84: FLAGS_rpc_negotiation_timeout_ms
What happens if this flag is set to negative by accident ? Will the code crash 
or does it translate to a very large unsigned value ?


http://gerrit.cloudera.org:8080/#/c/9186/1/be/src/rpc/rpc-mgr.cc@85
PS1, Line 85: FLAGS_rpc_negotiation_thread_count
Will it be safer to do max(1, FLAGS_rpc_negotiation_thread_count) to guarantee 
there is at least on negotiation thread available ?



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Gerrit-Branch: master
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Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 1
Gerrit-Owner: Sailesh Mukil 
Gerrit-Reviewer: Michael Ho 
Gerrit-Comment-Date: Fri, 02 Feb 2018 21:43:52 +
Gerrit-HasComments: Yes

[Impala-ASF-CR] IMPALA-6456: Add flags to configure rpc negotiation timeout ms and negotiation thread count in KRPC

2018-02-01 Thread Sailesh Mukil (Code Review) 
Sailesh Mukil has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/9186


Change subject: IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms 
and negotiation thread count in KRPC
..

IMPALA-6456: Add flags to configure rpc_negotiation_timeout_ms and negotiation 
thread count in KRPC

With the fix for KUDU-2228, the FLAGS_rpc_negotiation_timeout_ms was
retired in KRPC.

This patch introduces a flag to be able to configure that from the
Impala side (FLAGS_rpc_negotiation_timeout_ms).

It also introduces a flag to configure the negotiation
thread count (FLAGS_rpc_negotiation_thread_count).

Added a test to verify that setting FLAGS_rpc_negotiation_timeout_ms
to 0 causes negotiation failures. We unfortunately can't write a test
to check the same for FLAGS_rpc_negotiation_thread_count due to
DCHECKS present in the code.

Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
---
M be/src/rpc/rpc-mgr-test.cc
M be/src/rpc/rpc-mgr.cc
2 files changed, 31 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/86/9186/1
--
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Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I108d700e7eac04b678e21a3a920aac81ba8eede5
Gerrit-Change-Number: 9186
Gerrit-PatchSet: 1
Gerrit-Owner: Sailesh Mukil