Decrease flakiness of KsckRemoteTest.TestChecksumTimeout
Decrease flakiness of KsckRemoteTest.TestChecksumTimeout

Increase number of rows written to decrease likelihood of test failure.
This test was occasionally flaky on the test dashboard giving the following error:

-----------------------
ksck-test-table
-----------------------
T 2cc90454cbbb4f91b0a45b485985ad40 P 6c320f32728b4b4b9385e1577a42d7f8 (127.0.0.1:42456): Checksum: 0
T 2cc90454cbbb4f91b0a45b485985ad40 P d149bad609c24e95866ef376404feb5c (127.0.0.1:60532): Checksum: 0
T 2cc90454cbbb4f91b0a45b485985ad40 P 5fb63a6b87a746a6b61fd9dfd1bac3b9 (127.0.0.1:38211): Checksum: 56402281598
ERROR: >> Mismatch found in table ksck-test-table tablet 2cc90454cbbb4f91b0a45b485985ad40
T 518c146c517943f9a94510a1c5ddf79b P 6c320f32728b4b4b9385e1577a42d7f8 (127.0.0.1:42456): Checksum: 0
T 518c146c517943f9a94510a1c5ddf79b P d149bad609c24e95866ef376404feb5c (127.0.0.1:60532): Checksum: 0
T 518c146c517943f9a94510a1c5ddf79b P 5fb63a6b87a746a6b61fd9dfd1bac3b9 (127.0.0.1:38211): Checksum: 70183230336
ERROR: >> Mismatch found in table ksck-test-table tablet 518c146c517943f9a94510a1c5ddf79b
T 10ca2afc90bb4934a6ebd3be151da283 P 6c320f32728b4b4b9385e1577a42d7f8 (127.0.0.1:42456): Checksum: 0
T 10ca2afc90bb4934a6ebd3be151da283 P d149bad609c24e95866ef376404feb5c (127.0.0.1:60532): Checksum: 64845096153
ERROR: >> Mismatch found in table ksck-test-table tablet 10ca2afc90bb4934a6ebd3be151da283
T 10ca2afc90bb4934a6ebd3be151da283 P 5fb63a6b87a746a6b61fd9dfd1bac3b9 (127.0.0.1:38211): Checksum: 0

/data1/jenkins-workspace/kudu-flaky-tests/BUILD_TYPE/TSAN/label/kudu-gerrit-slaves/src/kudu/tools/ksck_remote-test.cc:212: Failure
Value of: s.IsTimedOut()
  Actual: false
Expected: true
Expected TimedOut Status, got: Corruption: 3 checksum mismatches were detected

Change-Id: Ica981c38bd551206d12789c3a5ef56466801953e
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/7202
Tested-by: jenkins
Reviewed-by: Adar Dembo <866ca730bfc7f544e3ebce604ceeba4879f23df0@cloudera.com>

InspurUSA/kudu,andrwng/kudu,InspurUSA/kudu,helifu/kudu,cloudera/kudu,helifu/kudu,helifu/kudu,andrwng/kudu,andrwng/kudu,andrwng/kudu,EvilMcJerkface/kudu,cloudera/kudu,helifu/kudu,andrwng/kudu,cloudera/kudu,cloudera/kudu,cloudera/kudu,cloudera/kudu,InspurUSA/kudu,cloudera/kudu,helifu/kudu,helifu/kudu,EvilMcJerkface/kudu,andrwng/kudu,helifu/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,andrwng/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,cloudera/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,InspurUSA/kudu,cloudera/kudu,andrwng/kudu,andrwng/kudu,helifu/kudu,InspurUSA/kudu,EvilMcJerkface/kudu,EvilMcJerkface/kudu,helifu/kudu,EvilMcJerkface/kudu