the WAL is the write ahead log. Writes are written there and in memory with the WAL being periodically flushed to TSM index files in the data directory. When that occurs is based on the size of the cache: https://github.com/influxdata/influxdb/blob/master/etc/config.sample.toml#L68
You don't have to backup the WAL, unless you want to ensure that all data in the DB at that moment in time is backed up. On Wed, Jan 4, 2017 at 6:09 PM, <[email protected]> wrote: > Thanks for the recommendation! > influxdb official page talks about taking backup of meta and data > directories. > > What about wal directory? Should i be taking its backup as well as it is > on a different EBS volume as recommended by official page. > > What is contained in write ahead log (wal)? Is it temporary placeholder of > time series data streaming in before its get into data directory? Do i need > to take its backup. > > -- > Remember to include the version number! > --- > You received this message because you are subscribed to the Google Groups > "InfluxData" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/influxdb. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/influxdb/c682f8e7-94b1-4317-93a8-7480dac7347c%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- Remember to include the version number! --- You received this message because you are subscribed to the Google Groups "InfluxData" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/influxdb. To view this discussion on the web visit https://groups.google.com/d/msgid/influxdb/CAHRno_wJ0Vh9-FM5CaD4KVL09FZQaVvNvn7MTjXSwSfZ7B61ng%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
