Hello!<br><br>Recently, I've implemented Varnish in our websites <a href="http://www.laprensa.hn">http://www.laprensa.hn</a>, <a href="http://www.elheraldo.hn">http://www.elheraldo.hn</a> and <a href="http://www.diez.hn">http://www.diez.hn</a>. After a few navigation, I discovered that frecuently the pages get blank or their content is partially loaded. When I examined the Response Body, I found that effectively still when the pages display blank, only a few HTML content is received.<br>
<br>Looking for possible problems, I proceed to examine the varnishlog -i Debug -I error output, I found this error message:<br>400 Debug c "Write error, len = 34500/55022, errno = Success"<br><br>Which appear aprox. twice by second, google give me a clue that confirm the browser behaviour, someone said that this error is showed when a client have canceled a request but he haven't received all content, and this is what has been happening, the connection is closed, before the reception of all content.<br>
<br>Next, here are my Varnish params:<br><br><span style="font-family: courier new,monospace;">param.show</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">200 2224</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">accept_fd_holdoff 50 [ms]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">acceptor default (epoll, poll)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">auto_restart on [bool]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">backend_http11 on [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">between_bytes_timeout 60.000000 [s]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">cache_vbe_conns off [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">cc_command "exec cc -fpic -shared -Wl,-x -o %o %s"</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">cli_buffer 8192 [bytes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">cli_timeout 5 [seconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">client_http11 off [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">clock_skew 10 [s]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">connect_timeout 0.400000 [s]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">default_grace 10</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">default_ttl 180 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">diag_bitmap 0x0 [bitmap]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">err_ttl 0 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">esi_syntax 0 [bitmap]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">fetch_chunksize 128 [kilobytes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">first_byte_timeout 60.000000 [s]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">group varnish (103)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">listen_address :80</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">listen_depth 1024 [connections]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">log_hashstring off [bool]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">log_local_address off [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">lru_interval 360 [seconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">max_esi_includes 5 [includes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">max_restarts 4 [restarts]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">obj_workspace 8192 [bytes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">overflow_max 100 [%]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">ping_interval 3 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">pipe_timeout 60 [seconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">prefer_ipv6 off [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">purge_dups on [bool]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">purge_hash on [bool]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">rush_exponent 3 [requests per request]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">send_timeout 600 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">sess_timeout 5 [seconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">sess_workspace 65536 [bytes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">session_linger 100 [ms]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">session_max 100000 [sessions]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">shm_reclen 255 [bytes]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">shm_workspace 8192 [bytes]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">srcaddr_hash 1049 [buckets]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">srcaddr_ttl 0 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">thread_pool_add_delay 2 [milliseconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">thread_pool_add_threshold 2 [requests]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">thread_pool_fail_delay 200 [milliseconds]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">thread_pool_max 5000 [threads]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">thread_pool_min 150 [threads]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">thread_pool_purge_delay 1000 [milliseconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">thread_pool_stack unlimited [bytes]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">thread_pool_timeout 120 [seconds]</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">thread_pools 8 [pools]</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">user varnish (100)</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">vcl_trace off [bool]</span><br><br>What could be the problem, maybe an incorrect configuration?<br>