[jira] [Created] (TRAFODION-2313) dcscheck doesn't return while invoking by REST call 'dcs/summary'

["Eason Zhang (JIRA)" <ji...@apache.org>]

Eason Zhang created TRAFODION-2313:
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             Summary: dcscheck doesn't return while invoking by REST call 'dcs/summary'
                 Key: TRAFODION-2313
                 URL: https://issues.apache.org/jira/browse/TRAFODION-2313
             Project: Apache Trafodion
          Issue Type: Bug
            Reporter: Eason Zhang
            Assignee: Eason Zhang


When a REST 'get' request 'dcs/summary' is invoked, it will call 'dcscheck' to get the dcs master info, but in some specific cases, the 'dcscheck' command will never return a value, so REST server hangs, it cannot receive any other REST requests any more.

The reason why 'dcscheck' doesn't return is that it calls the zookeeper CLI using pipe like this:

echo “ls $dcsznode” | $DCS_INSTALL_DIR/bin/dcs zkcli > $dcstmp

Modify it to not using pipe can solve this issue.



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