...
- Stable & Reliable
- Fault tolerant
- Scalability
- Efficient
- Cost-effective
- Maintainable
...
Hbase Index
| No Format |
|---|
+-------------+
+---------------+ | USER TABLEs |
+-------+ | META 1 ~ 2^17 | | ... |
| META0 +-----+ ... +-----+ |
+-------+ | | | |
+---------------+ | |
+-------------+
1 2 3
↑ ↑ ↑
| | |
+---+-------+--------+ |
| Client +------------------------------+
+-----------+
|
Block Diagram
| No Format |
|---|
- MDA : Mail Delivery Agent
+-----------------------------+
+-----------+ | Mail Frontend Web servers | * Client layer *
| Watcher | | (web UI, send an mails) |
+-----+-----+ +------+---------------+------+
| | ↑ |
SMTP read read sent mail
| requests reply log
+--------------------------------------------------------------------------------------+
| ↓ ↓ | ↓ |
| +--------------------------+----------------------+ |
| | Broker Servers (MDA & Spam Filtering, ..., etc) +←--+ * Broker layer *
| +--------------------------+----------------------+ | |
| ↑ ↑ | | |
+--------------------+--------------------+---------------+----------+-----------------+
| | | |
Reads user profile Read contents Update contents |
| | ↓ |
+-----+-------------------+-----+ +---------+----------------------+ |
| Hbase:UserTable | | Hbase:MIMETable | |
| (user profile, logs) | | (MIME data) | | * Storage layer *
+-------------------------------+ +--------------------------------+ |
↑ ↑ |
+-----------------------------+--------------------+----------------------+ |
| Hadoop: MapReduce Jobs (e.g. Log Analysis, SPAM calculation, .., etc) |←--+
+-------------------------------------------------------------------------+
|
...