akshayrai commented on a change in pull request #4611: [TE] Remove the logic of 
reading stderr from phantomjs to avoid zombie processes
URL: https://github.com/apache/incubator-pinot/pull/4611#discussion_r324279730
 
 

 ##########
 File path: 
thirdeye/thirdeye-pinot/src/main/java/org/apache/pinot/thirdeye/anomaly/alert/util/AlertScreenshotHelper.java
 ##########
 @@ -70,25 +67,9 @@ private static String takeScreenshot(String anomalyId, 
String dashboardHost, Str
     LOG.info("imgPath {}", imgPath);
     Process proc = Runtime.getRuntime().exec(new String[]{phantomJsPath, 
"phantomjs", "--ssl-protocol=any", "--ignore-ssl-errors=true",
         phantomScript, imgRoute, imgPath});
-
-    StringBuilder sbError = new StringBuilder();
 
 Review comment:
   Can there be any side-effects of removing this logic?

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