Better recovery on index failures

planet/idindex.py

@@ -9,10 +9,15 @@ from planet.spider import filename
 from planet import config
 
 def open():
-    cache = config.cache_directory()
-    index=os.path.join(cache,'index')
-    if not os.path.exists(index): return None
-    return dbhash.open(filename(index, 'id'),'w')
+    try:
+        cache = config.cache_directory()
+        index=os.path.join(cache,'index')
+        if not os.path.exists(index): return None
+        return dbhash.open(filename(index, 'id'),'w')
+    except Exception, e:
+        if e.__class__.__name__ == 'DBError': e = e.args[-1]
+        from planet import logger as log
+        log.error(str(e))
 
 def destroy():
     from planet import logger as log

planet/spider.py

@@ -15,6 +15,8 @@ re_slash         = re.compile(r'[?/:|]+')
 re_initial_cruft = re.compile(r'^[,.]*')
 re_final_cruft   = re.compile(r'[,.]*$')
 
+index = True
+
 def filename(directory, filename):
     """Return a filename suitable for the cache.
 
@@ -197,7 +199,8 @@ def spiderFeed(feed):
     scrub(feed, data)
 
     from planet import idindex
-    index = idindex.open()
+    global index
+    if index != None: index = idindex.open()
 
     # write each entry to the cache
     cache = config.cache_directory()
@@ -290,6 +293,9 @@ def spiderPlanet():
     log = planet.getLogger(config.log_level())
     planet.setTimeout(config.feed_timeout())
 
+    global index
+    index = True
+
     for feed in config.subscriptions():
         try:
             spiderFeed(feed)