Charles Thank for your explanation over the topic.
Regards Abhishek Srivastav Tata Consultancy Services Cell:- +91-9883389968 Mailto: [email protected] Website: http://www.tcs.com ____________________________________________ Experience certainty. IT Services Business Solutions Outsourcing ____________________________________________ From: "Charles Foster" <[email protected]> To: "General MarkLogic Developer Discussion" <[email protected]> Date: 07/01/2011 01:26 AM Subject: Re: [MarkLogic Dev General] Forest is getting out of disc space Sent by: [email protected] Abhishek, Not a great position, when MarkLogic thinks it won't be able to obtain the space it needs to perform a merge it may well chuck these error messages out into the ErrorLog. When this happens - something "must be done", letting it carry on will get the Database into a worse situation. If MarkLogic did a full merge for those Forests, it may well run out of disk space. If a system has less than 50% space available for Forests and Data files the system is definitely not in a good state and might not be able to perform a full Merge, hence the warning messages. You have a couple of options here, 1. Increase the disk capacity, so that you have more than 50% free space available for Forests and Data directories on the nodes with the Forests that can't perform a full merge. Then perform a full Merge. 2. If you have "multiple" Forests on a node - "Manually" merge individual forests - sequentially (waiting for one to complete, before kicking the next one off). You can do this via the Admin console. 2a. The physical size of a a Forest on disk may well need the same space again to perform a merge for that Forest, if the combined size will fit within the total remaining space then one at a time should be fine. 2b. For speed purposes, if you have a multi-node cluster, you could try merging one Forest on each node at the same time. So essentially each node is responsible for merging one of its Forests at a time. Any which way you solve this problem. Once you have managed to perform a Merge, I suggest you make plans to try to perform some sort of data clean up in the long run, i.e. getting rid of data you don't need. Or maybe Merge more often if you have for some reason switched merging off by mistake. Good luck. Regards, Charles P.S. Don't add or remove any indexes or perform any bulk updates to your Database UNTIL you have sorted this problem out. > Geert > > Error message is saying "need=25433MB, have=12375MB" though the same > space is available cumulating the free space for all other active forests. > Is there any way to restore the content of failed forest into new one. > > Thanks for your initiative. > > Abhishek Srivastav > Tata Consultancy Services > Cell:- +91-9883389968 > Mailto: [email protected] > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. IT Services > Business Solutions > Outsourcing > ____________________________________________ > > > > From: > Geert Josten <[email protected]> > To: > General MarkLogic Developer Discussion <[email protected]> > Date: > 06/30/2011 02:24 PM > Subject: > Re: [MarkLogic Dev General] Forest is getting out of disc space > Sent by: > [email protected] > > > > Hi Abhishek, > > Is it possible to make some more space available? If yes then doing so and > starting the merge again should solve your problems. Your data should be > safe. But you can always make a copy of it first to some other location. > > Kind regards, > Geert > > Van: [email protected] [ > mailto:[email protected]] Namens Abhishek53 S > Verzonden: donderdag 30 juni 2011 9:20 > Aan: General MarkLogic Developer Discussion > Onderwerp: [MarkLogic Dev General] Forest is getting out of disc space > *> > Hi Folks > > I ingested more than 40000 contents into marklogic. Marklogic server is > configured with 3 forest. Now the on disc stands merging (ML background > process) is giving out of disc space error for one of the forest . I have > a fear to loose my content present into the forest . > Let me know the mechanism to restore the content present in to the > forest. I do not have fail over configured for the forest. I restarted > both forest as well as the host but still the forest is unavailable. > > Your suggestion is highly appreciated. Thanks in advance !Error log is > attached > > XDMP-FORESTERR: Error in merge of forest dodge-4: XDMP-MERGESPACE: Not > merging due to disk space limitations, need=25433MB, have=12375MB > 2011-06-29 19:12:54.007 Notice: dodge-xdbc-8005: in /eval [1.0-ml] > 2011-06-29 19:12:54.066 Notice: dodge-xdbc-8005: XDMP-FORESTNOT: Forest > dodge-4 not available: > > Abhishek Srivastav > Tata Consultancy Services > Cell:- +91-9883389968 > Mailto: [email protected] > Website: http://www.tcs.com > ____________________________________________ > Experience certainty. 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