I was upgrading ES 1.3 to 1.4 .
I could upgrade to 1.4, but the index relocation is really very slow.
I followed the below steps for upgrade;
• Disabled Shard reallocation
• Shutdown the instance:
• Installed the new ElasticSearch version, removed the old ES windows service, installed and Started the new one.
And the installation process also still going on.
even after two days, not all indexes got upgraded.It still shows 'high disk watermark [10%] exceeded on [ZZ0ThBp9T4SRrX7d2qF1uw
John Sublime] free: 8.8gb[3.5%], shards will be relocated away from this node'
Thanks in advance