Yang Sen created HAWQ-1582:
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Summary: hawq ssh cmd bug when pipe in cmd
Key: HAWQ-1582
URL: https://issues.apache.org/jira/browse/HAWQ-1582
Project: Apache HAWQ
Issue Type: Bug
Components: Command Line Tools
Reporter: Yang Sen
Assignee: Radar Lei
Fix For: 2.3.0.0-incubating
h1. bug description
{code:bash}
hawq ssh -h sdw2 -h localhost -e 'ls -1 | wc -l'
{code}
When running this command, the expected action is that `ls -1 | wc -l` is
executed in each host. The expected output is (the number may be different):
{code:bash}
[sdw2] ls -1 | wc -l
[sdw2] 23
[localhost] ls -1 | wc -l
[localhost] 20
{code}
While the output got is:
{code:bash}
45
{code}
The result looks like `ls -l` was executed in each host and the output of `hawq
ssh -h sdw2 -h localhost -e 'ls -1'` was redirect to pipe to `wc -l`.
h2. Another related issue
{code:bash}
hawq ssh -h sdw2 -h localhost -e 'kill -9 $(pgrep lava)'
{code}
This command expects to kill process named lava in each host. While `$(pgrep
lava)` is executed in localhost, and program gets the process id, for example
55555. And then `kill -9 55555` is executed in each host, which is definitely
not match with our expect.
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