Changes between Version 1 and Version 2 of pingJMD

Timestamp:

02/10/14 11:12:19 (10 years ago)

Author:

niles

Comment:

--

pingJMD

@@ -7 +7 @@
 wget http://localhost:8080/JMD/JMD
 }}}
+
 
 when run on the machine that is running the JMD should write a file named "JMD" that is the JMD's response when it
@@ -31 +32 @@
 }}}
 
+This is a very basic first step, and only establishes basic connectivity. A better test involves interacting with
+some data. This can be done with the show_info command. Both show_info and the underlying idea of
+storage unit numbers (sunums) are beyond the scope of this discussion, and are introduced here only in passing. For
+now, we use show_info to identify data that we do not have on disk already. The command :
+
+{{{
+show_info -S -P key=T_OBS,T_REC_INDEX,WAVELNTH ds='aia.lev1[2011-08-19T10:59:57Z/1m][?wavelnth=304?]'
+}}}
+
+will return something like this if the data are already on disk :
+
+{{{
+sunum   T_OBS   T_REC_INDEX     WAVELNTH        SUDIR
+236661975       2011-08-19T10:59:57.57Z 1092826832      304     /SUM02/D236661975/S00000
+236662019       2011-08-19T11:00:09.57Z 1092826844      304     /SUM02/D236662019/S00000
+236662008       2011-08-19T11:00:21.57Z 1092826856      304     /SUM01/D236662008/S00000
+236662040       2011-08-19T11:00:33.59Z 1092826868      304     /SUM02/D236662040/S00000
+236662058       2011-08-19T11:00:45.57Z 1092826880      304     /SUM01/D236662058/S00000
+}}}
+
+but will not list the directories where the data reside if the data are not on disk :
+
+
+{{{
+sunum   T_OBS   T_REC_INDEX     WAVELNTH        SUDIR
+236661975       2011-08-19T10:59:57.57Z 1092826832      304
+236662019       2011-08-19T11:00:09.57Z 1092826844      304
+236662008       2011-08-19T11:00:21.57Z 1092826856      304
+236662040       2011-08-19T11:00:33.59Z 1092826868      304
+236662058       2011-08-19T11:00:45.57Z 1092826880      304
+}}}
+
+If we find some data that are not on disk, then we can initiate a JMD download of the data by using the "-p" rather
+than the "-P" option with show_info, like this :
+
+{{{
+show_info -S -p key=T_OBS,T_REC_INDEX,WAVELNTH ds='aia.lev1[2011-08-19T10:59:57Z/1m][?wavelnth=304?]'
+}}}
+
+The download should then appear in the JMD log, and subsequently running show_info with "-P" should show the data to be on disk locally.
+
+
+If requesting the data with show_info fails, this may indicate the the JMD is running but is not contactable through show_info. To
+query the database directly, use the jmd_admin.pl script to request the data directly from the JMD :
+
+
+{{{
+jmd_admin.pl --request -- --series=aia.lev1 --sunums= 236661975, 236662019, 236662008, 236662040, 236662058 --priority=20
+}}}