Crawler out of memory: java.lang.OutOfMemoryError: Java heap space

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Error message

Displayed in the crawl.N.log file

java.lang.OutOfMemoryError: Java heap space

Error type

Web crawler

Cause

The web crawler ran out of memory during the crawl.

Resolution

  1. Increase the allocated memory by setting/increasing the following collection.cfg setting (Default is 640MB)
    • Funnelback 15.10+: gather.max_heap_size=640
    • Pre Funnelback 15.10: max_heap_size=640
  2. Start a new crawl
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