java - Huge Storage for Weblogic JMS Server -


in weblogic server (4 nodes) defined migratable jms server (oracle) database storage. here receive 1000 messages per second. every message xml message of 1kb.

i might have need stop java mdb 1 day , store several gb of data (due maintenance).

how can (with little overhead) save these messages compressed in order reduce space?

there 2 possibilities, speaking main idea compress data:

  1. compress message: suggested oracle
  2. compress tablespace; not suggetsed oracle

then let me suggest first solution; then, can enable weblogic compression or custom compression on producer , consumer.

weblogic compression

navigate jms connection factory -> click configuration > default delivery tab. on default delivery page -> default compression threshold

custom gzip compression

  • compress xml message before sending
  • uncompress when receive

for instance use following code on mdb extract text if producer compressed message or not; 

   protected string gettext(message message) throws jmsexception, ioexception {     if (message instanceof textmessage) {         return ((textmessage) message).gettext();     } else if (message instanceof bytesmessage) {         byte zipped[] = new byte[(int) ((bytesmessage) message)                 .getbodylength()];         ((bytesmessage) message).readbytes(zipped);         bytearrayinputstream bais = new bytearrayinputstream(zipped);         stringbuilder sb = null;         gzipinputstream in = null;         try {             in = new gzipinputstream(bais);             bufferedreader reader = new bufferedreader(                     new inputstreamreader(in));             sb = new stringbuilder();             string line = null;             while ((line = reader.readline()) != null) {                 sb.append(line);             }         } {             try {                 if (in != null)                     in.close();             } catch (ioexception e) {                 log.error("gettext: ", e);             }             try {                 if (bais != null)                     bais.close();             } catch (ioexception e) {                 log.error("gettext: ", e);             }         }         return sb.tostring();     } else {         throw new jmsexception("unrecognized message type "                 + message.getclass());     } }

custom exi compression

recently evalued efficient xml interchange (exi) format 1.0. here indicators:

  • original message: 8903b
  • gzipped message: 1212b
  • exi schemaless: 903b
  • exi schema: 856b

but java open source implementation exi proxessor proposed siemens


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