This is on hbase-1.1.1.2.3.0.0-2557 if that would make any difference in analysis. Thanks
From: Arun Thangamani <[email protected]<mailto:[email protected]>> Date: Monday, December 7, 2015 at 12:13 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: system.catalog and system.stats entries slows down bulk MR inserts by 20-25X (Phoenix 4.4) Hello, I noticed an issue with bulk insert through map reduce in phoenix 4.4.0.2.3.0.0-2557, using outline of the code below Normally the inserts of about 25 million rows complete in about 5 mins, there are 5 region servers and the phoenix table has 32 buckets But sometimes (maybe after major compactions or region movement?), writes simply slow down to 90 mins, when I truncate SYSTEM.STATS hbase table, the inserts get a little faster (60 mins), but when I truncate both SYSTEM.CATALOG & SYSTEM.STATS tables, and recreate the phoenix table def(s) the inserts go back to 5 mins, the workaround of truncating SYSTEM tables is not sustainable for long, can someone help and let me know if there is a patch available for this? Thanks in advance. Job job = Job.getInstance(conf, NAME); // Set the target Phoenix table and the columns PhoenixMapReduceUtil.setOutput(job, tableName, "WEB_ID,WEB_PAGE_LABEL,DEVICE_TYPE," + "WIDGET_INSTANCE_ID,WIDGET_TYPE,WIDGET_VERSION,WIDGET_CONTEXT," + "TOTAL_CLICKS,TOTAL_CLICK_VIEWS,TOTAL_HOVER_TIME_MS,TOTAL_TIME_ON_PAGE_MS,TOTAL_VIEWABLE_TIME_MS," + "VIEW_COUNT,USER_SEGMENT,DIM_DATE_KEY,VIEW_DATE,VIEW_DATE_TIMESTAMP,ROW_NUMBER"); FileInputFormat.setInputPaths(job, inputPath); job.setMapperClass(WidgetPhoenixMapper.class); job.setMapOutputKeyClass(NullWritable.class); job.setMapOutputValueClass(WidgetPagesStatsWritable.class); job.setOutputFormatClass(PhoenixOutputFormat.class); TableMapReduceUtil.addDependencyJars(job); job.setNumReduceTasks(0); job.waitForCompletion(true); public static class WidgetPhoenixMapper extends Mapper<LongWritable, Text, NullWritable, WidgetPagesStatsWritable> { @Override public void map(LongWritable longWritable, Text text, Context context) throws IOException, InterruptedException { Configuration conf = context.getConfiguration(); String rundateString = conf.get("rundate"); PagesSegmentWidgetLineParser parser = new PagesSegmentWidgetLineParser(); try { PagesSegmentWidget pagesSegmentWidget = parser.parse(text.toString()); if (pagesSegmentWidget != null) { WidgetPagesStatsWritable widgetPagesStatsWritable = new WidgetPagesStatsWritable(); WidgetPagesStats widgetPagesStats = new WidgetPagesStats(); widgetPagesStats.setWebId(pagesSegmentWidget.getWebId()); widgetPagesStats.setWebPageLabel(pagesSegmentWidget.getWebPageLabel()); widgetPagesStats.setWidgetInstanceId(pagesSegmentWidget.getWidgetInstanceId()); ….. widgetPagesStatsWritable.setWidgetPagesStats(widgetPagesStats); context.write(NullWritable.get(), widgetPagesStatsWritable); } }catch (Exception e){ e.printStackTrace(); } } } public final class WidgetPagesStats { private String webId; private String webPageLabel; private long widgetInstanceId; private String widgetType; … @Override public boolean equals(Object o) { .. } @Override public int hashCode() { .. } @Override public String toString() { return "WidgetPhoenix{“…. '}'; } } public class WidgetPagesStatsWritable implements DBWritable, Writable { private WidgetPagesStats widgetPagesStats; public void readFields(DataInput input) throws IOException { widgetPagesStats.setWebId(input.readLine()); widgetPagesStats.setWebPageLabel(input.readLine()); widgetPagesStats.setWidgetInstanceId(input.readLong()); widgetPagesStats.setWidgetType(input.readLine()); … } public void write(DataOutput output) throws IOException { output.writeBytes(widgetPagesStats.getWebId()); output.writeBytes(widgetPagesStats.getWebPageLabel()); output.writeLong(widgetPagesStats.getWidgetInstanceId()); output.writeBytes(widgetPagesStats.getWidgetType()); .. } public void readFields(ResultSet rs) throws SQLException { widgetPagesStats.setWebId(rs.getString("WEB_ID")); widgetPagesStats.setWebPageLabel(rs.getString("WEB_PAGE_LABEL")); widgetPagesStats.setWidgetInstanceId(rs.getLong("WIDGET_INSTANCE_ID")); widgetPagesStats.setWidgetType(rs.getString("WIDGET_TYPE")); … } public void write(PreparedStatement pstmt) throws SQLException { Connection connection = pstmt.getConnection(); PhoenixConnection phoenixConnection = (PhoenixConnection) connection; //connection.getClientInfo().setProperty("scn", Long.toString(widgetPhoenix.getViewDateTimestamp())); pstmt.setString(1, widgetPagesStats.getWebId()); pstmt.setString(2, widgetPagesStats.getWebPageLabel()); pstmt.setString(3, widgetPagesStats.getDeviceType()); pstmt.setLong(4, widgetPagesStats.getWidgetInstanceId()); … } public WidgetPagesStats getWidgetPagesStats() { return widgetPagesStats; } public void setWidgetPagesStats(WidgetPagesStats widgetPagesStats) { this.widgetPagesStats = widgetPagesStats; } } ---------------------------------------------------------------------- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. 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