Bankim Bhavsar has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/16036 )

Change subject: [perf] KUDU-3140 Heuristics to disable predicate evaluation for 
Bloom filter
......................................................................


Patch Set 6:

> Patch Set 5:
>
> > Patch Set 5: Verified-1
> >
> > Build Failed
> >
> > http://jenkins.kudu.apache.org/job/kudu-gerrit/21853/ : FAILURE
>
> TSAN failure occurred while flushing the session even before running the scan 
> request or flushing the tablet for the (true, true) combination.
>
> Not sure what needs to be done.
>
> Would reducing number of rows being inserted (from current 10k) help?
>
>  W0622 23:54:15.658417  8665 meta_cache.cc:265] Tablet 
> 887360f8665b479c8c97fdb0bec62d78: Replica fa6ae0706a484d558a473c865defee88 
> (127.5.172.65:37891) has failed: Timed out: Write RPC to 127.5.172.65:37891 
> timed out after 10.000s (SENT)
>  W0622 23:54:15.659335  8665 batcher.cc:435] Timed out: Failed to write batch 
> of 4566 ops to tablet 887360f8665b479c8c97fdb0bec62d78 after 1 attempt(s): 
> Failed to write to server: fa6ae0706a484d558a473c865defee88 
> (127.5.172.65:37891): Write RPC to 127.5.172.65:37891 timed out after 10.000s 
> (SENT)
>  W0622 23:54:15.846995  8665 outbound_call.cc:285] RPC callback for RPC call 
> kudu.tserver.TabletServerService.Write -> {remote=127.5.172.65:37891, 
> user_credentials={real_user=slave}} blocked reactor thread for 189029us
>  W0622 23:54:16.848306  8665 meta_cache.cc:265] Tablet 
> 887360f8665b479c8c97fdb0bec62d78: Replica fa6ae0706a484d558a473c865defee88 
> (127.5.172.65:37891) has failed: Timed out: Write RPC to 127.5.172.65:37891 
> timed out after 10.000s (SENT)
>  W0622 23:54:16.848824  8665 batcher.cc:435] Timed out: Failed to write batch 
> of 4439 ops to tablet 887360f8665b479c8c97fdb0bec62d78 after 1 attempt(s): 
> Failed to write to server: fa6ae0706a484d558a473c865defee88 
> (127.5.172.65:37891): Write RPC to 127.5.172.65:37891 timed out after 10.000s 
> (SENT)

Timeout error is been for (true, true) case on invoking session->Flush() after 
updating rows.

Added intermediate session flushes and ran TSAN test in a loop 100 times. No 
failures were observed.


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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I10197800a01a1b34c7821ac879caf8d272cab8dd
Gerrit-Change-Number: 16036
Gerrit-PatchSet: 6
Gerrit-Owner: Bankim Bhavsar <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Bankim Bhavsar <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Tue, 23 Jun 2020 18:17:26 +0000
Gerrit-HasComments: No

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