hi, Ted. Do you know whether there is optimization on scan with TimeRange?
Actually, if set a sparse TimeRange and large scan cache, it will cause rpc time out sometimes. Actually, want to know whether it requires scanning each KV for checking its timestamp? Thanks, -Bing 2014-06-28 21:25 GMT+08:00 Ted Yu <[email protected]>: > Have you looked at the following method in AggregationClient ? > > long rowCount(final HTable table, > > final ColumnInterpreter<R, S, P, Q, T> ci, final Scan scan) throws > Throwable { > > You can specify timerange through scan parameter. > > See this method of Scan: > > public Scan setTimeRange(long minStamp, long maxStamp) > > Cheers > > > On Sat, Jun 28, 2014 at 3:42 AM, yogi <[email protected]> wrote: > > > Hi, > > > > I have a requirement where I have to make a shell script using which i > need > > to scan some 6 huge hbase tables and get the count of records present in > > them. Also i need the counts per day wise where i pass the date parameter > > to > > the shell script which calls these scan commands. I did find a way to > > convert the date to epoch time and pass it to scan command but the scan > > keeps running forever. Can some one help me in making this faster. > > > > Note: I am scanning the tables based on TIMERANGE as all the tables have > > this field. > > > > Thanks, > > Yogi > > > > > > > > -- > > View this message in context: > > > http://apache-hbase.679495.n3.nabble.com/Hbase-scan-using-TIMERANGE-tp4060851.html > > Sent from the HBase User mailing list archive at Nabble.com. > > >
