[hbase] branch branch-2.3 updated: HBASE-25685 asyncprofiler2.0 no longer supports svg; wants html (#3078)

[st...@apache.org]

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stack pushed a commit to branch branch-2.3
in repository https://gitbox.apache.org/repos/asf/hbase.git


The following commit(s) were added to refs/heads/branch-2.3 by this push:
     new ab79208  HBASE-25685 asyncprofiler2.0 no longer supports svg; wants html (#3078)
ab79208 is described below

commit ab79208a400cc4b0a30969090b56804195ef2cbc
Author: Michael Stack <sa...@users.noreply.github.com>
AuthorDate: Mon Mar 22 21:29:56 2021 -0700

    HBASE-25685 asyncprofiler2.0 no longer supports svg; wants html (#3078)
---
 .../main/java/org/apache/hadoop/hbase/http/ProfileServlet.java   | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/hbase-http/src/main/java/org/apache/hadoop/hbase/http/ProfileServlet.java b/hbase-http/src/main/java/org/apache/hadoop/hbase/http/ProfileServlet.java
index fc75530..8a3ef7a 100644
--- a/hbase-http/src/main/java/org/apache/hadoop/hbase/http/ProfileServlet.java
+++ b/hbase-http/src/main/java/org/apache/hadoop/hbase/http/ProfileServlet.java
@@ -48,7 +48,7 @@ import org.apache.hbase.thirdparty.com.google.common.base.Joiner;
  * //  -b bufsize        frame buffer size (long)
  * //  -t                profile different threads separately
  * //  -s                simple class names instead of FQN
- * //  -o fmt[,fmt...]   output format: summary|traces|flat|collapsed|svg|tree|jfr
+ * //  -o fmt[,fmt...]   output format: summary|traces|flat|collapsed|svg|tree|jfr|html
  * //  --width px        SVG width pixels (integer)
  * //  --height px       SVG frame height pixels (integer)
  * //  --minwidth px     skip frames smaller than px (double)
@@ -145,9 +145,12 @@ public class ProfileServlet extends HttpServlet {
     TRACES,
     FLAT,
     COLLAPSED,
+    // No SVG in 2.x asyncprofiler.
     SVG,
     TREE,
-    JFR
+    JFR,
+    // In 2.x asyncprofiler, this is how you get flamegraphs.
+    HTML
   }
 
   @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "SE_TRANSIENT_FIELD_NOT_RESTORED",
@@ -387,7 +390,7 @@ public class ProfileServlet extends HttpServlet {
       resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
       setResponseHeader(resp);
       resp.getWriter().write("The profiler servlet was disabled at startup.\n\n" +
-        "Please ensure the prerequsites for the Profiler Servlet have been installed and the\n" +
+        "Please ensure the prerequisites for the Profiler Servlet have been installed and the\n" +
         "environment is properly configured. For more information please see\n" +
         "http://hbase.apache.org/book.html#profiler\n");
       return;