Re: Usage of JDBM : Experience feedbacks
Tim Anderson <[email protected]> Mon, 27 Oct 2008 09:54:01 +1100
| Newsgroups | gmane.comp.java.openjms.devel |
|---|---|
| Message-ID | <[email protected]> |
--===============1848534468025612568== Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> We no longer support JDBM, as we had issues with database corruption.<br> <br> -Tim<br> <br> Florent Gratta wrote: <blockquote cite="mid:E05D289710E00A4EA7148501C2CA7A3B0449F29E-Lp/[email protected]" type="cite"> <meta http-equiv="Content-Type" content="text/html; "> <meta name="Generator" content="MS Exchange Server version 6.5.7652.24"> <title>Usage of JDBM : Experience feedbacks</title> <!-- Converted from text/rtf format --> <p align="left"><span lang="fr"><font face="Arial" size="2">Hi All,</font></span></p> <p align="left"><span lang="en-gb"><font face="Arial" size="2">I am currently Project Lead at Sicap, a Swiss company which designs softwares for mobile operators and the mobile network world in general.</font></span></p> <p align="left"><span lang="en-gb"><font face="Arial" size="2">We are going to use a BTree library to index entries of csv files. We have identified JDBM library (</font></span><span lang="fr"></span><a moz-do-not-send="true" href="http://jdbm.sourceforge.net/%29"><span lang="fr"></span><span lang="fr"></span><u><span lang="en-gb"><font color="#0000ff" face="Arial" size="2">http://jdbm.sourceforge.net/)</font></span></u><span lang="fr"></span></a><span lang="fr"></span><span lang="fr"></span><span lang="en-gb"><font face="Arial" size="2"> and we have seen that you are currently using it in</font></span><span lang="fr"></span><span lang="fr"></span><span lang="en-gb"> <font color="#000000" face="Arial" size="2">Open JMS</font></span><span lang="fr"></span><span lang="fr"></span><span lang="en-gb"><font face="Arial" size="2">.</font></span></p> <p align="left"><span lang="en-gb"><font face="Arial" size="2">As there is no more tracker activity on this project and it seems that it is the same thing for support, we would like to know if JDBM is stable:</font></span></p> <p><span lang="en-gb"><font face="Wingdings" size="2">è<font face="Courier New"> </font></font></span><span lang="en-gb"></span><span lang="fr"></span><span lang="fr"></span><span lang="en-gb"> <font face="Arial" size="2">Have you encountered problems when you use this library in multithreaded mode: Several concurrent inserts at a time?</font></span></p> <p><span lang="en-gb"><font face="Wingdings" size="2">è<font face="Courier New"> </font></font></span><span lang="en-gb"> <font face="Arial" size="2">What is the behaviour of the library when we shut down with emergency? Is it robust? By this way, does BTree file could be corrupted?</font></span></p> <p><span lang="en-gb"><font face="Wingdings" size="2">è<font face="Courier New"> </font></font></span><span lang="en-gb"> <font face="Arial" size="2">Do you encountered performance lack in some cases?</font></span> <br> <span lang="en-gb"><font face="Wingdings" size="2">è<font face="Courier New"> </font></font></span><span lang="en-gb"> <font face="Arial" size="2">Is there some limitations or lacks: Size of the index chain, cache size etc ...</font></span> <br> <span lang="en-gb"><font face="Wingdings" size="2">è<font face="Courier New"> </font></font></span><span lang="en-gb"> <font face="Arial" size="2">Etc ...</font></span> </p> <p align="left"><span lang="en-gb"><font face="Arial" size="2">We are very interested on your feedbacks and experiences on JDBM library usage ?</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="2">Thank’s a lot,</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="2">Kind Regards,</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="2">Florent GRATTA</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="1">Framework Project Leader, DeVelopment and Operation, Sicap France SAS</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="1">Phone +334 37 37 69 96, Fax +334 37 37 69 99, Mobile +336 81 76 58 02</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="1">Postal Address: 50 rue de marseille, 69007 Lyon, France</font></span></p> <p align="left"><span lang="fr-fr"><font face="Arial" size="1">mailto:</font></span><span lang="fr"> </span><a moz-do-not-send="true" href="mailto:florent.gratta-e9/[email protected]"><span lang="fr"></span><span lang="fr"></span><u><span lang="fr-fr"><font color="#0000ff" face="Arial" size="1">florent.gratta-e9/[email protected]</font></span></u><span lang="fr"></span></a><span lang="fr"></span><span lang="fr"></span><span lang="fr-fr"><font face="Arial" size="1">,</font></span><span lang="fr"> </span><a moz-do-not-send="true" href="http://www.sicap.com"><span lang="fr"></span><span lang="fr"></span><u><span lang="fr-fr"><font color="#0000ff" face="Arial" size="1">http://www.sicap.com</font></span></u><span lang="fr"></span></a><span lang="fr"></span><span lang="fr"></span><span lang="fr-fr"><font face="Arial" size="1">, Skype: florent_gratta</font></span></p> <!--[object_id=#sicap-france.com#]--><font face="Tahoma" size="2"><font color="#0000ff"> <div dir="ltr"><span><font color="#000000" face="Arial" size="1"> <hr></font></span></div> <div dir="ltr"><span><font color="#000000" face="Arial" size="1">This e-mail may contain confidential and/or privileged information. 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