Hi, I would like to dispel some of my doubts about WriteAheadLogs (WAL). I believe they are stored under the .logs directory in hdfs. But it seems that the information contained in the WAL is insufficient for recovery after a regionserver goes down. I have given the sample contents of a WAL of a particular regionserver in my cluster:
-ROOT-/70236052/1 [#edits: 1 = <.META.,,1/info:regioninfo/1306420231906/Put/vlen=272; >] -ROOT-/70236052/2 [#edits: 1 = <METAROW/METAFAMILY:/1306420232051/Put/vlen=17; >] This doesn't seem to give any info on the data in the regionserver. Is it meant only for the master to use this or can we write our own code to handle failures? -- With Regards, Jr.
