[jira] [Created] (KUDU-2495) dist-test slave environment can no longer ptrace

["Adar Dembo (JIRA)" <ji...@apache.org>]

Adar Dembo created KUDU-2495:
--------------------------------

             Summary: dist-test slave environment can no longer ptrace
                 Key: KUDU-2495
                 URL: https://issues.apache.org/jira/browse/KUDU-2495
             Project: Kudu
          Issue Type: Bug
          Components: test
    Affects Versions: n/a
            Reporter: Adar Dembo
            Assignee: Todd Lipcon


Noticed this while debugging an unrelated failure. I'm guessing it's due to the VM upgrade in the dist-test environment? We should probably configure /proc/sys/kernel/yama/ptrace_scope in the host OS so that we can restore this functionality.
{noformat}
I0710 23:27:16.445466 18604 external_mini_cluster-itest-base.cc:86] Attempting to dump stacks of TS 0 with UUID 3576d2baa86141439f2e837433589a9b and pid 22014
************************ BEGIN STACKS **************************
Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
/tmp/dist-test-taskXw_ur6/build/debug/test-work/tablet_copy_client_session-itest/22014: No such file or directory.
No threads.
************************* END STACKS ***************************
I0710 23:27:16.608888 18604 external_mini_cluster-itest-base.cc:86] Attempting to dump stacks of TS 1 with UUID 6ec7d1737cd1460ab9dd752e64eac912 and pid 22413
************************ BEGIN STACKS **************************
Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
/tmp/dist-test-taskXw_ur6/build/debug/test-work/tablet_copy_client_session-itest/22413: No such file or directory.
No threads.
************************* END STACKS ***************************{noformat}



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