If you want to recover the data stored in tables from the old instance, it'll be more straightforward to follow the advanced troubleshooting section of the user manual.
In there is a "what if zookeeper fails" section: http://accumulo.apache.org/1.6/accumulo_user_manual.html#zookeeper_failure Take note of the caveats in that section about potential data issues. -- Sean On Jul 13, 2014 11:02 PM, "Vicky Kak" <[email protected]> wrote: > Here is the example about the import/export > http://accumulo.apache.org/1.6/examples/export.html > > > On Mon, Jul 14, 2014 at 9:27 AM, William Slacum < > [email protected]> wrote: > >> If the zookeeper data is gone, your best bet is try and identify which >> directories under /accumulo/tables points to which tables you had. You can >> then bulk import the files into a new instance's tables. >> >> >> On Sun, Jul 13, 2014 at 11:54 PM, Vicky Kak <[email protected]> wrote: >> >>> I am not sure if the tables could be recovered seamlessly, the tables >>> are stored in undelying hdfs. >>> I was thinking of using >>> http://accumulo.apache.org/1.6/examples/bulkIngest.html to recover the >>> tables, the better would be if we could update the zookeeper data pointing >>> to the existing hdfs table data. >>> I don't have more information about it as of now, we need someone else >>> to help us here. >>> >>> >>> On Mon, Jul 14, 2014 at 9:06 AM, Jianshi Huang <[email protected]> >>> wrote: >>> >>>> It's too deleted... so the only option I have is to delete the >>>> zookeeper nodes and reinitialize accumulo. >>>> >>>> You're right, I deleted the zk nodes and now Accumulo complains nonode >>>> error. >>>> >>>> Can I recover the tables for a new instance? >>>> >>>> Jianshi >>>> >>>> >>>> On Mon, Jul 14, 2014 at 11:28 AM, Vicky Kak <[email protected]> >>>> wrote: >>>> >>>>> Can't you get the secret from the corresponding accumulo-site.xml or >>>>> this is too deleted? >>>>> >>>>> Deletion from the zookeeper should be done using the rmr /accumulo >>>>> command, you will have to use zkCli.sh to use zookeeper client. I have >>>>> been >>>>> doing this sometime back, have not used it recently. >>>>> I would not recommend to delete the information in zookeeper unless >>>>> there is not other option, you may loose the data IMO. >>>>> >>>>> >>>>> >>>>> On Mon, Jul 14, 2014 at 8:40 AM, Jianshi Huang < >>>>> [email protected]> wrote: >>>>> >>>>>> Clusters got updated and user home files lost... I tried to reinstall >>>>>> accumulo but I forgot the secret I put before. >>>>>> >>>>>> So how can I delete /accumulo in Zookeeper? >>>>>> >>>>>> Or is there a way to rename instance_id? >>>>>> >>>>>> -- >>>>>> Jianshi Huang >>>>>> >>>>>> LinkedIn: jianshi >>>>>> Twitter: @jshuang >>>>>> Github & Blog: http://huangjs.github.com/ >>>>>> >>>>> >>>>> >>>> >>>> >>>> -- >>>> Jianshi Huang >>>> >>>> LinkedIn: jianshi >>>> Twitter: @jshuang >>>> Github & Blog: http://huangjs.github.com/ >>>> >>> >>> >> >
